Komatsu PC400LC-1(S/N 10001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC400LC-1 (S/N 10001-UP) is a heavy-class crawler hydraulic excavator designed for high-production earthmoving and mass excavation. This machine belongs to the PC400 series, featuring a robust configuration capable of handling demanding construction and mining tasks. The series includes various configurations such as fixed or variable gauge undercarriages and different bucket capacities. It serves as a foundational model in Komatsu's heavy excavator lineage, preceding later iterations like the PC400-3 and PC400-5.
Across generations, the PC400 series evolved from early mechanical configurations to advanced systems featuring integrated telematics and improved emissions compliance. The PC400LC-1 remains a significant machine in the used market due to its durable chassis and established parts availability. Maintenance of this era's machines focuses on managing hydraulic integrity and engine longevity, making it a staple for fleets requiring reliable heavy-duty performance without the complexity of modern Tier 4 Final aftertreatment systems.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Komatsu PC400LC-1(S/N 10001-UP) specifications
Engine
| Model | Komatsu SAA6D125E-5 |
| Gross Power | 270 kW (362 HP) |
| Net Power | 257 kW (345 HP) |
| Displacement | 11.04 L |
| Cylinders | 6 |
| Emissions Tier | U.S. EPA Tier 3 and EU Stage 3A |
Weights
| Operating Weight | Varies by configuration; approximately 40 tons |
Dimensions
| Max Lift Height | 20 feet (6.1 m) |
Performance
| Maximum Travel Speed (High) | 5.5 km/h (3.4 mph) |
| Maximum Travel Speed (Mid) | 4.0 km/h (2.5 mph) |
| Maximum Travel Speed (Low) | 3.0 km/h (1.9 mph) |
| Swing Speed | 9.1 min-1 |
| Gradeability | 70% (35°) |
| Maximum Drawbar Pull | 330 kN (33,700 kg) |
Forces
| Relief Valve Setting (Implement Circuits) | 37.3 MPa (380 kg/cm²) |
| Relief Valve Setting (Swing Circuit) | 27.9 MPa (285 kg/cm²) |
Service capacities (summary)
| Fuel Tank | 650 L |
| Hydraulic Tank | 248 L |
| Engine Oil | 37.0 L |
| Coolant | 36.0 L |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
PC400LC-1(S/N 10001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | not documented for this exact serial range — verify with your dealer | Komatsu Diesel engine oil |
| Cooling system | not documented for this exact serial range — verify with your dealer | Komatsu Super-coolant AF-NAC |
| Fuel tank | 650 L (171.76 US gal) | not documented for this exact serial range — verify with your dealer |
| Hydraulic system total | not documented for this exact serial range — verify with your dealer | Komatsu Hydraulic oil |
| Hydraulic tank | not documented for the exact serial range — verify with your dealer | Komatsu Hydraulic oil |
| Grease | not documented for this exact serial range — verify with your dealer | not documented for this exact serial range — verify with your dealer |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu PC400LC-1(S/N 10001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the PC400LC-1(S/N 10001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize oil wear analysis at every major service interval to monitor wear metals like iron, copper, and lead. Regularly sample hydraulic fluid to track particle count (ISO cleanliness), water content, and oxidation levels. Monitoring engine oil for fuel dilution or soot buildup prevents catastrophic engine failure. Use telematics data to track fault codes and fuel consumption trends, allowing for proactive component replacement before downtime occurs.
Corrective & Common Repairs
Frequent repairs often involve addressing hydraulic hose cracks or leaks at high-pressure connection points. Monitor the swing pinion grease level and swing machinery case oil to prevent bearing damage. If hydraulic performance drops, inspect the hydraulic return filter and strainer for debris. Ensure track tension is adjusted correctly to prevent excessive wear on idlers and spлоckets. Always verify the integrity of bucket pins and bushings during inspections.
Overhaul & Rebuild Points
Major overhaul milestones include replacing hydraulic hoses and performing a full coolant flush at 2,000-hour intervals. During deep rebuilds, inspect the turbocharger for play and check all engine exhaust pipe clamps for tightness. Evaluate the final drive oil condition; if contamination is found, change both sides of the final drive oil. Comprehensive structural inspections of boom and stick welds are required during high-hour component evaluations.
Seasonal & Environment Servicing
In dusty environments, clean or replace the air cleaner outer element more frequently to prevent engine ingestion. During cold weather operation, implement extended engine warm-up and hydraulic system warm-up procedures. After long-term storage, check all battery voltages and inspect for rodent damage in wiring harnesses. For machines operating with hydraulic breakers, adjust hydraulic oil replacement intervals as breaker use accelerates oil deterioration.
PC400LC-1(S/N 10001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07000-02080 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 07002-03334 | O-Ring, At Transmission Filter | Scheduled service item | Check fitment → |
| 01220-40820 | Screw, Filter Mounting | Scheduled service item | Check fitment → |
| 205-60-51270 | Element | Scheduled service item | Check fitment → |
| 205-60-51430 | Element,Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PC400LC-1(S/N 10001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power failure or engine control drive system circuit malfunction (may cause engine stall) | Engine controller (ECM) power connections, fuses, or ground wires failure | Inspect ECM power connections, fuses, or ground wires |
| E11 | Engine control system failure resulting in reduced output power to protect the engine | High coolant temperature, low oil pressure, or air filter restriction | Check coolant temperature, oil pressure, and air filter status |
| CA115 | Engine crankshaft speed sensor failure or backup speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA122 | Intake air pressure sensor feedback voltage is too high | Sensor malfunction or wiring fault | Verify the intake pressure sensor and associated wiring |
| CA123 | Intake air pressure sensor feedback voltage is too low | Sensor short circuit or airflow restriction | Check for a sensor short or an airflow restriction |
| CA451 | Common rail pressure sensor feedback value is too high | Malfunction in the rail sensor or actual overpressure condition | Diagnose the fuel rail pressure sensor or pump lines |
| CA452 | Common rail pressure sensor feedback value is too low | Malfunction in the rail sensor or actual underpressure condition | Diagnose fuel rail pressure sensor or pump lines |
| DGH2KB | Hydraulic oil temperature sensor short circuit | Faulty temperature sensor | Replace the temperature sensor |
| DW43KB | Travel speed solenoid valve short circuit | Electrical short in the travel speed control solenoid | Replace the solenoid valve |
| DXA8KB | Front pump PC-EPC solenoid valve short circuit | Wire chafing or electrical short in the solenoid circuit | Inspect for wire chafing or shorting at the solenoid |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PC400LC-1(S/N 10001-UP) attachments & work tools
Buckets
Standard capacities range from 1.30 m³ (1.70 yd³) to 2.20 m³ (2.88 yd³). Available configurations include digging, ditching, and clamshell buckets (rotating or non-rotating), as well as crusher buckets for on-site recycling.
Hydraulic hammers
Compatible with hydraulic breakers, including box, side, and top breaker hammer types. Specific weight class for the hammer is not documented for this exact serial range — verify with your dealer.
Quick couplers
The machine supports quick coupler attachments for efficient tool changes. Pin-on or coupler-style mounting options are available for various work tools.
Thumbs/grapples
Compatible with hydraulic thumbs, mechanical thumbs, and various grapple types including hydraulic, mechanical, and rotating hydraulic grapples. These allow for improved material handling and sorting.
Rippers
The machine is compatible with frost rippers and standard ripper attachments for breaking hard ground or rock.
Hydraulic-kit notes
Equipped with a closed-center load-sensing hydraulic system (HydrauMind) featuring variable displacement piston pumps. The system provides high flow output at lower engine RPM via large displacement implement pumps.
All PC400LC-1(S/N 10001-UP) assemblies by section
Every catalogued assembly group for the Komatsu PC400LC-1(S/N 10001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine Related Parts And Electrical System
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Air Cleaner Connection
| 01***25 | Bolt - Rear Guard Mounting | 8 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 6 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Battery And Heater Relay
| 01***20 | Bolt,(Used When Towing Winch) | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 5 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Bypass Filter And Piping
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 5 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (For Loader)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System(#10124-10281)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System(#10282-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Engine Mount(#10001-10281)
| 01***85 | Bolt | 2 |
| 01***70 | Bolt,(For Rops) | 8 |
| 01***45 | Washer,(Without R.O.P.S.) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Engine Mount(#10282-)
| 01***85 | Bolt | 2 |
| 01***70 | Bolt,(For Rops) | 8 |
| 01***45 | Washer,(Without R.O.P.S.) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Control Lever Linkage
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***30 | Bolt,(For Rubber Shoe) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(For Rubber Shoe) | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (1/2)
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (1/2) (For Wrist Control) (Except Japan)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 7 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 9 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (2/2)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 1 |
| 01***20 | Screw (Not Illustrated) | 4 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (2/2) (For Wrist Control) (Except Japan)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 1 |
| 01***20 | Screw (Not Illustrated) | 4 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Muffler And Connection
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 5 |
| 01***70 | Screw | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Power Take Off (1/3)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Power Take Off (2/3)
| 01***60 | Bolt | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Power Take Off (3/3)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***25 | Screw | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Radiator And Oil Cooler
| 01***30 | Bolt,(For France Noise Suppression) | 64 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 32 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 24 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Radiator Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Optional Parts
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Cooling)(#10124-10277)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Cooling)(#10278-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Heating)(#10124-10277)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Heating)(#10278-)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Piping And Air Conditioner Related Parts
| 01***12 | Bolt,(With Cylinder Cover) | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (1/2)(#10124-10277)
| 01***25 | Bolt - Rear Guard Mounting | 10 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 5 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (1/2)(#10278-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (2/2)(#10124-10277)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (2/2)(#10278-)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Compressor And Control Panel
| 20***60 | Case Ass'Y | 1 |
| 20***70 | Switch | 1 |
| 20***80 | Resistor | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Compressor Related Parts (For Air Conditioner)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Condenser Unit
| 20***70 | Condenser | 1 |
| 20***80 | Motor,Fan | 1 |
| 20***90 | Shroud | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Condenser Unit (For Conditioner)
| 20***50 | Condenser Ass'Y | 1 |
| 20***50 | Core | 1 |
| 20***60 | Shroud, Fan | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Control Unit (For Air Conditioner)
| 20***60 | Control Ass'Y | 1 |
| 20***00 | Switch | 1 |
| 20***10 | Ornament | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Cooling Unit
| 20***60 | Evaporator | 1 |
| 20***70 | Case Ass'Y | 1 |
| 20***80 | Grille Ass'Y | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Cooling Unit (For Air Conditioner)
| 20***10 | Cooling Unit | 1 |
| 20***10 | Case Ass'Y | 1 |
| 20***20 | Case Ass'Y | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Deluxe Seat
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 20***40 | Belt,Seat | 1 |
| 20***00 | Seat Ass'Y | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Electrical System (For Air Conditioner)(#10124-10277)
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Electrical System (For Air Conditioner)(#10278-)
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : F.O.P.S.
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***40 | Bolt,(With Center Guard) | 32 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Freon Gas Compressor (For Air Conditioner)
| 04***20 | Ring, Snap | 1 |
| 14***90 | Bearing | 2 |
| 14***10 | Clutch Ass'Y | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Head Guard
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Light Work Bucket? 20m3? 1725mm
| 09***36 | Pin | 5 |
| 20***42 | Adapter (Welded) | 5 |
| 20***43 | Adapter (Welded) | 5 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Light Work Bucket? 20m3? 1725mm? With Hook (Except Japan)
| 09***36 | Pin | 5 |
| 20***42 | Adapter (Welded) | 5 |
| 20***52 | Tooth | 5 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Long Arm
| 01***12 | Bolt,(Without R.P.C.U.) | 2 |
| 01***90 | Bolt,For Reversible Fan | 4 |
| 01***19 | Washer,(Not Used With Ventilator) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Long Life Tooth (For Backhoe Bucket)
| 20***70 | Tooth | 0 |
| (0***6) | Pin | 0 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Modified Chassis Parts (For Air Conditioner)(#10278-)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
| 20***80 | Frame | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Modified Chassis Parts (For Car Cooler)(#10278-)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
| 20***80 | Frame | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : P.O.C. Valve Piping (For Cold Weather) (B)
| 01***65 | Bolt,R.H | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***23 | Washer,(For Shipping) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Pre-Fuel Filter (Except Japan)
| 01***29 | Washer,Spring (Cold Weather Spec.) | 7 |
| 02***32 | Bolt | 7 |
| 02***45 | Hose | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Radio-Less
| 01***10 | Screw,(For Lighter) | 7 |
| 01***03 | Nut,(With Joy Stick Steering) | 2 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 7 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Radio-Less (For Wrist Control) (Except Japan)
| 01***10 | Screw,(For Lighter) | 7 |
| 01***03 | Nut,(With Joy Stick Steering) | 2 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 7 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Ripper
| 09***08 | Pin,(Without Pin Puller) | 1 |
| 19***31 | Point,Short?(Yellow) | 1 |
| 20***10 | Ripper Ass'Y | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Ripper Bucket? 1.0m3? 1250mm
| 09***08 | Pin,(Without Pin Puller) | 3 |
| 19***31 | Point,Short?(Yellow) | 3 |
| 20***10 | Bucket | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Rock Bucket? 1.4m3? 1350mm
| 09***36 | Pin | 4 |
| 20***42 | Adapter (Welded) | 4 |
| 20***43 | Adapter (Welded) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Self Supply Pump
| 07***20 | Hose | 1 |
| 07***59 | Clamp - Drain Hose | 2 |
| 20***30 | Wire | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Semi-Long Arm
| 01***90 | Bolt,For Reversible Fan | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 16 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Short Arm (2400mm)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Slope Finishing Bucket
| 20***10 | Bucket | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trapezoidal Bucket
| 20***10 | Bucket | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trenching Bucket? 1.2m3? 1200mm
| 01***95 | Bolt | 10 |
| 09***36 | Pin | 4 |
| 19***21 | Nut? Shoe (Kit) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trenching Bucket? 1.4m3? 1325mm
| 01***95 | Bolt | 10 |
| 09***36 | Pin | 4 |
| 19***21 | Nut? Shoe (Kit) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trenching Bucket? 1.4m3? 1325mm? With Hook (Except Japan)
| 01***95 | Bolt | 10 |
| 09***36 | Pin | 4 |
| 19***21 | Nut? Shoe (Kit) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Vandalism Protection
| 07***00 | Cap,(For Vandalism Protection) | 1 |
| 07***00 | Cap, Locking - Hydraulic Tank Oil Filler Cap | 1 |
| 20***20 | Cover (Welded) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Window Washer
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Window Washer (For Wrist Control) (Except Japan)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 2 |
Optional Parts (Special Application Parts)
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Attachment Side (1/2)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***85 | Bolt, Mount Tubes To Switch And Work Pumps | 12 |
| 01***90 | Bolt,(Without Giant Ripper) | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Change Rotor And Swivel Joint
| 01***30 | Bolt,(Not Used With Emergency Str.) | 9 |
| 01***05 | Bolt, Mount Tube | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 17 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Control Valve To Change Rotor Block
| 01***70 | Bolt, Accumulator Mounting Bracket | 1 |
| 01***95 | Bolt | 4 |
| 01***11 | Nut,(With Under Mirror) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Pilot Line
| 01***80 | Bolt,(For Long Lever Control) | 3 |
| 01***06 | Seat (Welded) | 1 |
| 01***23 | Washer,(For Shipping) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additionel Piping? Attachment Side (2/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***85 | Bolt, Mount Tubes To Switch And Work Pumps | 8 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Cab Guard? For Additional Piping
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***35 | Bolt | 4 |
| 01***09 | Seat,(Welded To Revolving Frame) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Check Valve (For U.S.A.)(#10363-)
| 07***22 | O-Ring,Lubricating Oil Pipe | 1 |
| 07***22 | Ring, Back-Up | 2 |
| 07***34 | O-Ring, At Transmission Filter | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Coloring Window Glass (For U.S.A.)
| 20***80 | Proof,Dust | 2 |
| 20***10 | Sash | 1 |
| 20***20 | Lock Ass'Y | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Pedal And Linkage? For Additional Piping (1/2)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***60 | Capscrew | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Pedal And Linkage? For Additional Piping (2/2)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Valve L.H.(For Left Travel?Arm And Boom High)(For U.(#10124-)
| 01***20 | Bolt, Mount Spool Covers | 10 |
| 01***25 | Bolt | 2 |
| 01***16 | Bolt | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Valve R.H.(For Right Travel?Bucket And Boom)(For Bac(#10124-)
| 01***20 | Bolt, Mount Spool Covers | 10 |
| 01***25 | Bolt | 2 |
| 01***16 | Bolt | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Cylinder (For Mechanical Hand)
| 07***15 | O-Ring,(Y1621-01a0-10) | 1 |
| 07***00 | Fitting, Grease (Steering Cylinder) | 1 |
| 07***08 | Plug,(Without Oil Pressure Switch) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Defroster (For U.S.A.)
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
| 01***03 | Nut,(With Joy Stick Steering) | 3 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Electrical System (1/2) (For Mechanical Hand)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***15 | Bolt | 4 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Electrical System (2/2) (For Mechanical Hand)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***15 | Bolt | 4 |
| 01***15 | Bolt | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Hydraulic Oil Piping (For Mechanical Hand)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 8 |
| 01***90 | Bolt | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Hydraulic Oil Piping?Attachment Side (For Mechanical Hand)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Machinery Compartment (T.B.G. Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***08 | Screw, Terminal | 4 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Marks And Plates (For U.S.A.)
| 01***08 | Screw | 4 |
| 09***43 | Plate? Name,(Limited Supply) | 1 |
| 15***60 | Seat,Non Slip (Large) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Marks And Plates? Operator'S Cab (For U.S.A.)
| 20***90 | Plate? Caution,Maximum Height? Reach(For Usa) | 1 |
| 20***50 | Plate,Capacity | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (1/5)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***50 | Bolt,(With Service Valve R.H.) | 5 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (2/5)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 28 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (3/5)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (4/5)
| 01***55 | Bolt,(For Reinforced Type) | 4 |
| 01***20 | Screw | 8 |
| 01***75 | Bolt | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (5/5)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 5 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 5 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 12 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Operator'S Cab (T.B.G. Spec.)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***10 | Screw,(For Lighter) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Over Load Warning Device (2/2) (T.B.G. Spec.) : Unit_01_of_02
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 4 |
| 01***12 | Screw,(With Articulate Indicator) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Over Load Warning Device (2/2) (T.B.G. Spec.) : Unit_02_of_02
| 01***60 | Bolt,(For Japan And Sweden) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : P.O.C.Piping? P.O.C. Valve To Check Valve (For U.S.A.)
| 01***25 | Bolt,Without Revolution Sensor | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : P.O.C.Piping? P.O.C. Valve To Control Valve (For U.S.A.)
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 12 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 12 |
| 07***08 | Plug,See Fig. K4010-63a0 | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Revolving Frame (T.B.G. Spec.)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***08 | Screw, Terminal | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Selector Valve Control Linkage (For U.S.A.)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Hold Brake Piping (For U.S.A.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***55 | Bolt,(For Reinforced Type) | 4 |
| 01***35 | Screw | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Hold Brake Switch (For U.S.A.)
| 01***25 | Screw - Antenna Mounting | 2 |
| 01***06 | Nut | 1 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Motor (For U.S.A.)(#10124-10362)
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 2 |
| 07***35 | O-Ring, Upper Cooler Inlet And Outlet Ports | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Motor (For U.S.A.)(#10363-)
| 01***55 | Bolt,(Not Used For Chip Dozer) | 8 |
| 01***45 | Bolt | 8 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Motor Parking Brake (For U.S.A.)(#10124-)
| 01***55 | Bolt,(Not Used For Chip Dozer) | 8 |
| 01***48 | Washer,Spring (For Slag Handling), Washer-Spring | 8 |
| 01***12 | Washer | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swivel Joint (For Mechanical Hand)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Travel Circuit Connecting Valve (For U.S.A.)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***50 | Bolt (Kit) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Travel Piping (For U.S.A.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***80 | Bolt,(Not Shown) | 4 |
| 01***80 | Bolt | 16 |
Revolving Frame And Cab
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Heater
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (1/6)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 9 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (2/6)(#10124-10229)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 7 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 18 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (2/6)(#10230-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 7 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 18 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (3/6)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 27 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 27 |
| 20***50 | Hinge (Welded) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (4/6)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (5/6)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 19 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 14 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 33 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (6/6)
| 01***20 | Bolt,(With Auto Emergency Steering) | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Marks And Plates (English)
| 01***08 | Screw | 4 |
| 08***35 | Indicator,Dust (Japanese-English) | 1 |
| 09***00 | Plate? Safety,Lock Lever (With Lock Pin) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Marks And Plates (English) (For Wrist Control)
| 01***08 | Screw | 4 |
| 08***35 | Indicator,Dust (Japanese-English) | 1 |
| 09***00 | Plate? Safety,Lock Lever (With Lock Pin) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Marks And Plates (German) (For Wrist Control)
| 01***08 | Screw | 4 |
| 08***35 | Indicator,Dust (English-German) | 1 |
| 09***00 | Plate? Safety,Swing Lock Lever | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (1/6)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 6 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 14 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (2/6)
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw | 3 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (3/6)
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
| 01***25 | Screw | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (4/6)
| 01***08 | Screw, Terminal | 2 |
| 01***08 | Screw | 6 |
| 01***12 | Screw,(Not Shown) (For Std Cab) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (5/6)
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 3 |
| 01***12 | Screw,(With Articulate Indicator) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (6/6)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 6 |
| 01***25 | Screw | 2 |
| 01***12 | Screw | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab Frame
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***75 | Bolt | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab Frame (For Wrist Control) (Except Japan)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***75 | Bolt | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Seat
| 01***20 | Bolt,(Large Capacity Type) (Std) | 5 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
| 01***10 | Nut,(Dust?Drip Proof? Trimming S.) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Revolving Frame (For Backhoe)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Revolving Frame (For Loader)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Under Cover
| 01***30 | Bolt,(Not Used With Emergency Str.) | 56 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 56 |
| 20***70 | Hinge (Welded) | 1 |
Swing And Control Systems
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Bottom Dump Control (1/2) (For Loader)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Screw | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Bottom Dump Control (2/2) (For Loader)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Screw | 4 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.N.C. Piping (1/2)
| 01***25 | Bolt - Rear Guard Mounting | 1 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.N.C. Piping (2/2)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (1/4)
| 01***40 | Bolt,(With Air Conditioner) | 2 |
| 01***55 | Bolt,(10m) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (1/4) (For Wrist Control) (Except Japan)
| 01***40 | Bolt,(With Air Conditioner) | 2 |
| 01***55 | Bolt,(10m) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (2/4)
| 01***25 | Bolt - Rear Guard Mounting | 1 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (2/4) (For Wrist Control) (Except Japan)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***40 | Bolt,(With Service Valve R.H.) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (3/4)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 19 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (3/4) (For Wrist Control) (Except Japan)
| 01***25 | Bolt,Without Revolution Sensor | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (4/4) (For Wrist Control) (Except Japan)
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***55 | Bolt,(10m) | 2 |
| 01***80 | Bolt,(For Long Lever Control) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (4/4)(#10124-10362)
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***55 | Bolt,(10m) | 2 |
| 01***80 | Bolt,(For Long Lever Control) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (4/4)(#10363-)
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***55 | Bolt,(10m) | 2 |
| 01***80 | Bolt,(For Long Lever Control) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (For Bottom Dump) (For Loader)
| 01***35 | Bolt,(For Position Fixing) | 8 |
| 01***55 | Bolt,(10m) | 2 |
| 01***80 | Bolt,(For Long Lever Control) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Relief Valve
| 01***05 | Nut (Welded) | 1 |
| 07***32 | O-Ring,Drain Plug? Main Clutch | 1 |
| 07***15 | O-Ring,Regulator Valve | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Shuttle Valve (For Bottom Dump) (For Backhoe)
| 01***18 | Bolt | 4 |
| 01***20 | Bolt | 4 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Circle
| 01***60 | Washer,(Without Rops Guard? Canopy) | 72 |
| 04***42 | Pin,Dowel? Gear Case Cover | 3 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Machinery (1/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 16 |
| 01***55 | Bolt,(For Reinforced Type) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Machinery (2/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 12 |
| 01***70 | Bolt,Leaning Lock | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor (Except Japan)(#10124-10156)
| 01***55 | Bolt | 8 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor (Except Japan)(#10157-10362)
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 2 |
| 07***35 | O-Ring, Upper Cooler Inlet And Outlet Ports | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor (Except Japan)(#10363-)
| 01***55 | Bolt | 8 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Brake Valve(#10124-10362)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***70 | Bolt,(With Wear Guard) | 8 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Brake Valve(#10363-)
| 07***22 | O-Ring,Lubricating Oil Pipe | 1 |
| 07***22 | Ring, Back-Up | 2 |
| 07***34 | O-Ring, At Transmission Filter | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Shock-Less Valve(#10124-10156)
| 07***16 | O-Ring,Suction And Relief Valve | 2 |
| 07***25 | O-Ring,(See Fig. H0311-01a0-30) | 1 |
| 07***16 | Ring, Back-Up | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Shock-Less Valve(#10157-)
| 07***05 | O-Ring (Kit) | 1 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 1 |
| 07***16 | O-Ring,Suction And Relief Valve | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage (1/2)
| 01***40 | Bolt,(With Air Conditioner) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? L.H. (F.W.C.)(Except Japan)
| 01***40 | Bolt | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 5 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? R.H. (1/2) (F.W.C.) (E.J.)
| 01***40 | Bolt | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***23 | Plain Washer | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? R.H. (2/2) (F.W.C.) (E.J.)
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 10 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#10124-10156)
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 8 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 1 |
| 01***11 | Nut,(With Under Mirror) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#10157-10362)
| 01***70 | Bolt, Accumulator Mounting Bracket | 1 |
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#10363-)
| 01***70 | Bolt, Accumulator Mounting Bracket | 1 |
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Tool And Kit
Komatsu : Pc400lc-1(S/N 10001-Up) : Tool And Kit : Tool
| 07***00 | Pump,Grease | 1 |
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***00 | Cartridge,Grease | 1 |
Travel And Final Drive
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Final Drive Case
| 01***55 | Bolt,(For Reinforced Type) | 3 |
| 01***60 | Bolt,Reamer | 32 |
| 01***16 | Nut | 32 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Final Drive Case And Sprocket
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 22 |
| 01***70 | Bolt,(For Rops) | 40 |
| 01***95 | Bolt | 14 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Motor Drain Piping(#10124-10362)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***09 | Nut,(With Body Positioner) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Motor Drain Piping(#10363-)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***09 | Nut,(With Body Positioner) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Propel Motor Brake Valve (1/2)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***50 | Bolt (Kit) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Propel Motor Brake Valve (2/2)
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Swivel Joint
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
| 04***50 | Ring, Snap (2) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Swivel Joint To/From Travel Motor Piping
| 01***35 | Bolt,(For Position Fixing) | 8 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 4 |
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 16 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Screw | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage (1/2) (E.J.)(#10124-10385)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage (1/2) (E.J.)(#10386-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage (2/2) (Except Japan)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Motor (Except Japan)
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 1 |
| 07***12 | Plug,(For Without Brake Assistor) | 1 |
| 70***00 | Motor Ass'Y,(Kmf160a) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Motor Parking Brake
| 01***55 | Bolt,(Not Used For Chip Dozer) | 8 |
| 01***48 | Washer,Spring (For Slag Handling), Washer-Spring | 8 |
| 01***12 | Washer | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Valve To/From Swivel Joint Piping
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 48 |
Under Carriage
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Carrier Roller
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***75 | Bolt, Hanger Bearing Mounting | 8 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Front Idler(#10124-10190)
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Front Idler(#10191-)
| 01***13 | Nut,Plate (Welded) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 2 |
| 07***90 | O-Ring,(Dk029369-0020) (K2) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Recoil Spring
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(For Rubber Shoe) | 4 |
| 01***05 | Bolt | 16 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Frame
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***40 | Bolt,(With Center Guard) | 16 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 22 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Roller(#10124-10372)
| 01***00 | Bolt | 72 |
| 01***60 | Washer,Single Flange (Trimming) | 72 |
| 04***16 | Pin,(Dowel) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Roller(#10373-)
| 01***00 | Bolt | 72 |
| 01***60 | Washer,Single Flange (Trimming) | 72 |
| 04***16 | Pin,(Dowel) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Shoe
| 15***28 | Link,Track? L.H | 104 |
| 15***38 | Link,Track? R.H | 104 |
| 15***60 | Seal,Dust? Master? W-Type | 8 |
Work Equipment
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Arm (For Backhoe)
| 01***45 | Bolt | 8 |
| 01***60 | Flat Washer - M20 (Hardened) | 8 |
| 07***00 | Fitting, Grease (Steering Cylinder) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Arm (For Loader)
| 01***40 | Bolt,(With Center Guard) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 2 |
| 07***10 | O-Ring - Strainer Cover | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Boom (For Backhoe)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 4 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 8 |
| 01***40 | Bolt | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Boom (For Loader)
| 01***40 | Bolt,(With Service Valve R.H.) | 16 |
| 01***40 | Bolt,(With Center Guard) | 10 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Bucket (For Loader)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 13 |
| 01***40 | Bolt,(With Center Guard) | 8 |
| 01***45 | Bolt | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Bucket? 1.6m3? 1630mm (For Backhoe)
| 01***95 | Bolt | 10 |
| 09***36 | Pin | 5 |
| 19***21 | Nut? Shoe (Kit) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Link (For Backhoe)
| 01***19 | Nut - M24 | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 1 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Link (For Loader)
| 01***40 | Bolt,(With Service Valve R.H.) | 32 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 32 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Work Equipment Lubrication (1/2) (For Loader)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 22 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 22 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Work Equipment Lubrication (2/2) (For Loader)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 12 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 12 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 14 |
Work Equipment Control System
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Air System (1/2)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***14 | Nut | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Air System (2/2)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm And Bucket Piping (Chassis Side)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder (For Backhoe)(#10124-10314)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 4 |
| 01***80 | Bolt,(For 100kg) | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder (For Backhoe)(#10315-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 4 |
| 01***00 | Bolt, Mount Back-Up Alarm | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder (For Loader)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***60 | Bolt, Tube To Oil Cooler | 4 |
| 01***00 | Bolt, Mount Back-Up Alarm | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder Piping (Chassis Side9 (For Loader)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 16 |
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 10 |
| 01***50 | Bolt,(For Strengthened Cover) | 11 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm High Control Valve
| 01***20 | Bolt, Mount Spool Covers | 4 |
| 01***65 | Screw | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Cylinder (For Backhoe)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Cylinder (For Loader)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Cylinder Piping (Chassis Side) (For Loader)
| 01***32 | Washer, (Without Emergency Steering) | 32 |
| 07***32 | O-Ring,(See Fig. H0312-01a0-4) | 8 |
| 07***16 | Hose | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Piping (Chassis Side) (1/2)
| 01***95 | Bolt,(For 2nd Travel Speed) (Op) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 14 |
| 07***32 | O-Ring,(See Fig. H0312-01a0-4) | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Piping (Chassis Side) (2/2)(#10124-10314)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Piping (Chassis Side) (2/2)(#10315-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***50 | Bolt,(For Strengthened Cover) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom?Arm And Bucket Cylinder Piping (For Backhoe)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Cylinder (For Loader)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Piping (1/2) (For Loader)
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***50 | Bolt,(For Strengthened Cover) | 7 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Piping (2/2) (For Loader)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Piping (Chassis Side) (For Loader)
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bucket Cylinder (For Backhoe)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bucket Cylinder (For Loader)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bucket Cylinder Piping (For Loader)
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Control Valve? L.H. (For L.H. Travel? Arm And Boom High)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Control Valve? R.H. (For R.H. Travel? Bucket And Boom)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***20 | Bolt, Mount Spool Covers | 10 |
| 01***25 | Bolt | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Control Valve?R.H. (For Right Travel? Bucket? B.A.B.D.)
| 01***20 | Bolt, Mount Spool Covers | 14 |
| 01***25 | Bolt | 2 |
| 01***16 | Bolt | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (1/3) (Except Japan)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***90 | Bolt, Fan Mounting | 4 |
| 01***10 | Bolt, Fan Mounting | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (2/3) (Except Japan)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***10 | Bolt, Fan Mounting | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (3/3) (Except Japan)
| 70***02 | Hydraulic Pump Ass'Y | 2 |
| 70***02 | Hydraulic Pump Ass'Y | 2 |
| 70***50 | Boss | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Tank(#10124-10314)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 8 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Tank(#10315-)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 8 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Jet Sensor
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 1 |
| 07***16 | O-Ring | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Main Relief Valve
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 07***16 | O-Ring | 1 |
| 07***16 | Ring, Back-Up | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Main Relief Valve (For Loader)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 07***16 | O-Ring | 1 |
| 07***16 | Ring, Back-Up | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : P.O.C Pump
| 04***18 | Ring, Retaining | 1 |
| 70***10 | Pump Ass'Y | 1 |
| 70***10 | Seal, Oil | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Pump To Valve Piping (1/2)(#10124-10229)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Pump To Valve Piping (1/2)(#10230-)
| 01***60 | Bolt | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Pump To Valve Piping (2/2)
| 01***65 | Bolt,(Except Japan) | 2 |
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 2 |
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 15 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (1/3)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***30 | Screw | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (2/3)(#10124-10308)
| 01***25 | Bolt - Rear Guard Mounting | 2 |
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***11 | Nut,(With Under Mirror) | 6 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (2/3)(#10309-)
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***30 | Screw | 4 |
| 01***11 | Nut,(With Under Mirror) | 10 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (3/3)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (1/4)
| 01***80 | Bolt | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (2/4)
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***40 | Bolt,(With Air Conditioner) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (3/4)
| 07***23 | O-Ring,(F4320-61a0 -29 ) | 2 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 1 |
| 07***07 | Plug,Housing No.2?3?4?5?6 | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (4/4)
| 70***10 | Piston | 1 |
| 70***01 | C.O. Valve Ass'Y | 1 |
| (7***1) | Hydraulic Pump Ass'Y | 2 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction And Safety Valve
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,See Fig. K4010-65a0 | 1 |
| 70***00 | Valve Ass'Y,Suction And Safety? R.H | 3 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction And Safety Valve (1/2) (For Loader)
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,See Fig. K4010-65a0 | 1 |
| 70***00 | Valve Ass'Y,Suction And Safety? R.H | 5 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction And Safety Valve (2/2) (For Loader)
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,See Fig. K4010-65a0 | 1 |
| 70***70 | Spring | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction Valve
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,(F2310-59a0 -4 ) | 1 |
| 70***70 | Spring | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction Valve (For Loader)
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,(F2310-59a0 -4 ) | 1 |
| 70***70 | Spring | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? L.H.(#10124-10362)
| 01***20 | Bolt, Mount Spool Covers | 4 |
| 07***35 | O-Ring,(F4350-61a0 -32 ) | 1 |
| 07***32 | O-Ring,(See Fig. H0312-01a0-4) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? L.H.(#10363-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***20 | Bolt, Mount Spool Covers | 4 |
| 01***16 | Washer,Radio Controlled Slag Handling | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? R.H.(#10124-10362)
| 01***20 | Bolt, Mount Spool Covers | 4 |
| 07***35 | O-Ring,(F4350-61a0 -32 ) | 1 |
| 07***32 | O-Ring,(See Fig. H0312-01a0-4) | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? R.H.(#10363-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***20 | Bolt, Mount Spool Covers | 4 |
| 01***16 | Washer,Radio Controlled Slag Handling | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : T.C.C Valve
| 07***23 | O-Ring,(F4320-61a0 -29 ) | 3 |
| 07***07 | Plug,Housing No.2?3?4?5?6 | 3 |
| 70***00 | Tcc Valve Ass'Y | 1 |
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Tank To Pump Piping
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 10 |
PC400LC-1(S/N 10001-UP) serial number reference
The factory PIN or serial plate is riveted to the right-hand side of the cab on the lower frame, typically behind the front idler or beneath the operator window. To read the prefix, locate the first two characters at the start of the model designation ('PC' for crawler excavator). Cross-check the riveted plate against the serial number stamped directly into the chassis frame casting on the right-hand side.
| Prefix | Identifies | Notes |
|---|---|---|
| PC | PC400LC-1 (S/N 10001-UP) | Identifies the hydraulic crawler excavator family. The numeric '400' indicates the approximate operating weight class of 40 tonnes. The 'LC' suffix denotes a long-carriage undercarriage configuration. |
Frequently asked questions
What engine is installed in the PC400LC-1?
The specific engine designation for the PC400LC-1 (S/N 10001-UP) is not explicitly listed in the provided documentation, though related series utilize Komatsu diesel engines such as the S6D125-1VV.
What is the operating weight of this machine?
The operating weight varies by configuration and serial range; for example, similar PC400LC-7 models are rated between 43,700 kg (96,359 lb) and 44,600 kg (98,343 lb).
What model replaced the PC400-1 series?
The PC400-1 was succeeded by subsequent generations including the PC4::400-3, PC400-5, and later emission-compliant models like the PC400-6.
What PC400LC-1(S/N 10001-UP) owners discuss
What are the common hydraulic symptoms when a Komatsu PC400 series machine experiences performance loss?
How can I diagnose an engine that loses power specifically during heavy digging loads?
What causes a Komatsu excavator to exhibit weak hydraulic performance specifically when the oil temperature rises?
What are the typical indicators of an electrical or sensor-related failure on this machine?
What should be inspected if the excavator travels with a pull to one side or at uneven speeds?
What are the primary causes of engine overheating during heavy excavation work?
What is the most critical item to check when purchasing a used Komatsu PC400 series excavator?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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