Komatsuhydraulic excavatorsmall ( - pc90)
Komatsu PC75R-2(S/N 22E5210001-Up)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC75R-2 is a midi-class crawler hydraulic excavator manufactured from 1999 to 2007. It is powered by a Komatsu 4D98E-1FB diesel engine delivering 51 kW (68 hp) net power. Operating weight ranges from 7,160 to 7,950 kg (15,785 to 17,527 lb) depending on configuration. The PC75R-2 succeeded the PC75-1 and was followed by the PC78MR-6. Configurations include monoboom or two-piece boom options, short or long digging arms, and track choices of 450, 500, or 600 mm steel tracks or 450 mm rubber tracks.
Across its generation, the PC75R-2 introduced the Closed Load Sensing System (CLSS) hydraulic system for improved control and productivity. It features a swing offset boom option and customizable auxiliary hydraulic flow rates. The machine remains relevant in the used market due to its compact dimensions, which allow access to tight spaces, and its durable 4D98E-1FB engine. Parts availability is supported by extensive catalog coverage for serial ranges starting from 22E5200763 and 22E5210001.
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 PC75R-2(S/N 22E5210001-Up) specifications
Engine
| Model | Komatsu 4D98E-1FB |
| Net Power | 51 kW (68 HP) |
| Displacement | 3.3 L |
| Cylinders | 4 |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating Weight | 7,160–7,950 kg (15,785–17,527 lb) |
| Ground Pressure | Not documented for this exact serial range — verify with your dealer |
| Transport Weight | 7,600 kg (16,755 lb) |
Dimensions
| Transport Length | 5.875 m (19 ft 3 in) |
| Transport Width | 2.05 m (6 ft 9 in) |
| Transport Height | 2.69 m (8 ft 9 in) |
| Tail Swing Radius | Not documented for this exact serial range — verify with your dealer |
| Track Shoe Width | 450 mm |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
| Undercarriage Length | Not documented for this exact serial range — verify with your dealer |
Performance
| Max Dig Depth | 4.25 m (13 ft 8 in) |
| Max Reach at Ground | 7.77 m (25 ft 5 in) |
| Max Dump Height | Not documented for this exact serial range — verify with your dealer |
| Max Cutting Height | Not documented for this exact serial range — verify with your dealer |
| Swing Speed | 10.2 RPM |
| Travel Speed | Not documented for this exact serial range — verify with your dealer |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
| Drawbar Pull | Not documented for this exact serial range — verify with your dealer |
Forces
| Bucket Digging Force | Not documented for this exact serial range — verify with your dealer |
| Stick/Arm Digging Force | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Fuel Tank | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System/Tank | Not documented for this exact serial range — verify with your dealer |
| Engine Oil | Not documented for this exact serial range — verify with your dealer |
| Cooling System | Not documented for this exact serial range — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu PC75R-2(S/N 22E5210001-Up) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
| Every 6,000 h |
|
| Every 10,000 h |
|
Servicing the PC75R-2(S/N 22E5210001-Up) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor hydraulic oil temperature and pressure via the monitor panel. Use Komatsu Oil/Fuel & Wear Analysis (KOWA) to track wear metals in the hydraulic system and engine. Check hydraulic oil cooler element condition at 500-hour intervals. Inspect pilot system pressure for drops indicating pump wear. Analyze coolant inhibitor levels to prevent scaling in the 4D98E-1FB engine block. Track swing bearing grease contamination for early bearing failure signs.
Corrective & Common Repairs
Address hydraulic hose leaks by replacing ORFS couplings and inspecting hose abrasion points near the boom and stick. Replace pilot control lever play adjustments to restore precise joystick response. Fix fuel system air ingress by tightening fuel line fittings and replacing the fuel filter element. Repair swing bearing bolt loosening by torquing to spec and replacing with new grade bolts. Replace worn track shoes and idlers to maintain undercarriage alignment and reduce ground pressure.
Overhaul & Rebuild Points
Rebuild the main hydraulic pump at 10,000 hours or when flow drops below spec. Inspect and replace swing motor case drain filters and seals to prevent gear wear. Overhaul the 4D98E-1FB engine valves and injectors at 4,000 hours to restore compression and fuel efficiency. Replace hydraulic cylinder seals on boom, stick, and bucket cylinders to prevent external leakage. Inspect turbocharger shaft play and replace if excessive to maintain boost pressure.
Seasonal & Environment Servicing
In cold climates, check coolant freeze protection and use low-temperature hydraulic oil. Drain fuel water separator daily to prevent ice blockage. Inspect rubber tracks for cracking in extreme heat or cold. Clean radiator and oil cooler fins frequently in dusty environments to prevent overheating. Check battery electrolyte level and charge state in cold weather. Inspect undercarriage for mud packing that increases track tension and wear.
PC75R-2(S/N 22E5210001-Up) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM102103-55520 | O-Ring,(For Fuel Filter) | Fuel system service | Check fitment → |
| YM129470-55610 | Body, Fuel Filter | Fuel system service | Check fitment → |
| 21D-98-11170 | Plate, Safety Fuel Filter | Fuel system service | Check fitment → |
| 21D-98-11180 | Plate, Safety, Engine Air Filter | Air intake service | Check fitment → |
| 21D-98-12050 | Plate, Safety, Hydraulic Oil Filter | Hydraulic service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PC75R-2(S/N 22E5210001-Up) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power failure | ECM power connection, fuse, or ground wire issue | Inspect ECM power connections, fuses, and ground wires |
| E11 | Engine protection—output power reduced | High coolant temperature, low oil pressure, or clogged air filter | Check coolant temperature, oil pressure, and air filter |
| E02 | PC-EPC system malfunction | Fault in the proportional pressure control solenoid drive system | Inspect EPC solenoid valve drive circuit and connectors |
| E03 | Swing parking brake system fault | Swing parking brake solenoid valve circuit short or open | Check swing parking brake solenoid valve circuit |
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA111 | Engine controller critical internal fault | ECM internal failure | Replace or reprogram the ECM |
| CA441 | Battery voltage too low | Weak battery or charging system issue | Replace the battery or alternator; check the voltage regulator |
| CA442 | Battery voltage too high | Alternator overcharging or voltage regulator failure | Replace the alternator or battery; check the voltage regulator |
| AA10NX | Air cleaner clogging | Clogged air filter element | Replace the air filter |
| B@HANS | Hydraulic oil overheating | Contaminated hydraulic oil, clogged filter, or cooler fan issue | Change hydraulic filter and oil; check cooler fan |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PC75R-2(S/N 22E5210001-Up) attachments & work tools
Buckets
Factory specifications list a standard bucket capacity of 0.25 cubic meters (0.33 cubic yards) with a width of 0.8 meters (2.6 feet). The product archive indicates an available capacity range of 0.13 to 0.46 cubic meters (0.17 to 0.60 cubic yards). Attachments are engineered for wide tips and straight-forward corner adapters to create smooth edges in low-impact materials like dirt and loam.
Hydraulic hammers
The machine supports auxiliary hydraulic flow rates of 44.1 GPM (167 L/min) to operate breakers. The standard bucket width of 0.8 meters (2.6 feet) aligns with medium-class hydraulic hammers suitable for this midi excavator weight class. The operation manual includes specific sections for the arrangement and installation of demolition hammers.
Quick couplers
The PC75R-2 is equipped with options for both hydraulic quick hitches and mechanical quick hitches. The CLSS hydraulic system allows for adjustable flow-rate and pressure on auxiliary lines to accommodate various quick coupler types and specifications.
Thumbs/grapples
The machine is designed for versatile attachment switching, including thumbs and grapples for applications ranging from landscaping to construction. The adjustable auxiliary hydraulic system supports the flow requirements for hydraulic thumb and grapple operation.
Rippers
Single-tooth excavator rippers are listed as available attachment options for the PC75R-2. These tools utilize the machine's auxiliary hydraulic circuits for operation.
Hydraulic-kit notes
The excavator uses a Closed Load Sensing System (CLSS) hydraulic system. Auxiliary line flow-rate and pressure are adjustable to match the specifications of different attachments. The machine operates with Komatsu TO hydraulic oil and Komatsu EO engine oil.
All PC75R-2(S/N 22E5210001-Up) assemblies by section
Every catalogued assembly group for the Komatsu PC75R-2(S/N 22E5210001-Up). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System And Revolving Frame
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Counter Weight (Optional)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***90 | Bolt | 3 |
| 01***10 | Bolt (Itl) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Fuel Control Lever
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (2nd Boom Ppc Valve Line)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 14***10 | Pedal Cap | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Arm And Swing Ppc Valve Line) (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***20 | Screw | 4 |
| 21***80 | Union | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Arm And Swing Ppc Valve Line) (2/2)
| 01***40 | Bolt | 1 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
| 21***60 | Union | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Blade Valve Line)
| 21***50 | Screw | 2 |
| 21***30 | Nut | 1 |
| 21***80 | Union | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Boom And Bucket Ppc Valve Line) (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***20 | Screw | 4 |
| 21***80 | Union | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Boom And Bucket Ppc Valve Line) (2/2)
| 21***60 | Union | 4 |
| 21***10 | Union Tee | 1 |
| 21***60 | O-Ring | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Boom Swing Ppc Valve Line)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Travel Ppc Line) (1/2)
| 21***30 | Screw | 4 |
| 21***00 | Elbow | 4 |
| 21***60 | O-Ring | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Hydraulic Piping (Travel Ppc Line) (2/2)
| 21***80 | Union | 4 |
| 21***60 | O-Ring | 1 |
| 21***80 | Hose | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Revolving Frame
| 01***60 | Bolt, Mount Pole | 4 |
| 22***10 | Rubber | 1 |
| 22***10 | Counter Weight | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Control System And Revolving Frame : Servocontrol System Starting Lever
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 21***30 | Switch | 1 |
| 21***20 | Nut | 1 |
Engine
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Air Intake Manifold
| YM***00 | Manifold,Air Intake | 1 |
| YM***21 | Gasket (Kit) | 1 |
| YM***52 | Screw | 9 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Camshaft And Driving Gear
| YM***00 | Idle Gear Ass'Y | 1 |
| YM***00 | Tappet Rod | 8 |
| YM***50 | Bearing, Thrust | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Cooling Water System
| 21***60 | Water Temperature Transmitter (Instrument) | 1 |
| YM***40 | Fan, Cooling | 1 |
| YM***90 | Valve,Water Drain | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Crankshaft And Piston
| YM***50 | Ring Set (+0.25 mm) | 4 |
| YM***00 | Crankshaft, Assembly | 1 |
| YM***80 | Flywheel, Assembly | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Cylinder Block
| YM***60 | Cylinder Block, Assembly | 1 |
| YM***00 | Screw | 18 |
| YM***00 | Main Metal Ass'Y (Std) | 5 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Cylinder Head
| 22***00 | Engine, Assembly | 1 |
| YM***80 | Retainer, Spring | 8 |
| YM***40 | Seal,Valve? Exhaust (Kit) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Engine Stop Device
| YM***00 | Pin, Cotter | 2 |
| YM***20 | Link | 1 |
| YM***00 | Coil | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Exhaust Manifold And Muffler
| YM***02 | Bolt Plated | 2 |
| YM***00 | Muffler | 1 |
| YM***02 | Nut | 6 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Feed Pump
| YM***40 | Gasket | 4 |
| YM***60 | O-Ring | 2 |
| YM***00 | Screw | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Flywheel - Lubricating Oil Sump
| YM***52 | Screw | 9 |
| YM***10 | Oil Sump | 1 |
| YM***80 | Shaft Seal | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Fuel Injection Line
| YM***02 | Bolt Plated | 1 |
| YM***50 | Nozzle | 4 |
| YM***40 | Injection Pipe N. 4 | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Fuel Injection Pump
| YM***00 | Segment | 4 |
| YM***00 | Gasket Disc | 4 |
| YM***20 | Valve,Delivery | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Fuel Line
| YM***02 | Screw | 1 |
| YM***90 | Pipe L=500 | 2 |
| YM***10 | Banjo Fitting | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Gasket Set
| YM***40 | Seal,Valve? Exhaust (Kit) | 4 |
| YM***01 | Gasket (Kit) | 2 |
| YM***70 | O-Ring (Kit) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Gear Housing
| YM***02 | Bolt Plated | 3 |
| YM***02 | Screw | 10 |
| YM***02 | Screw | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Generator
| YM***41 | Cover, Rear | 1 |
| YM***50 | Cable | 1 |
| YM***80 | Pulley | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Governor
| YM***40 | Screw | 2 |
| YM***00 | Nut | 1 |
| YM***00 | Screw | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Lubricating Oil Pump
| YM***40 | Stud | 1 |
| YM***81 | Retainer | 1 |
| YM***50 | Oil Pressure Transmitter | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine : Starter Motor
| YM***80 | Holder Brush, Assembly | 1 |
| YM***10 | Retainer | 1 |
| YM***20 | Shift Lever Ass'Y | 1 |
Engine Related Parts And Electrical System
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Air Cleaner And Mounting
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***40 | Bolt | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Battery
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Dashboard, R.H.
| 20***30 | Starting Switch,Starting | 1 |
| 21***51 | Wiring Harness, Assembly | 1 |
| 21***30 | Screw | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Line)
| 01***14 | Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Electrical System (Fuse And Line)
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Electrical System (Light And Service Line) (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 21***60 | Reflex Reflector | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Electrical System (Light And Service Line) (2/2)
| 01***14 | Bolt | 2 |
| 01***25 | Bolt,(For Automatic) | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***40 | Bolt | 4 |
| 01***35 | Screw | 16 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Front Dashboard
| 21***20 | Screw | 3 |
| 21***30 | Screw | 2 |
| 21***60 | Nut | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Fuel Piping (1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Fuel Piping (2/2)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***70 | Bolt (Op) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Left Dashboard
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Muffler And Piping
| 01***16 | Bolt (With Air Heater & Conditioner) | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Power Take Off
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Screw | 12 |
| 21***80 | Washer,Spring | 12 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Radiator : Unit_01_of_02
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***60 | Bolt, Tube To Oil Cooler | 2 |
| 01***40 | Screw | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Radiator : Unit_02_of_02
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***60 | Bolt, Tube To Oil Cooler | 2 |
| 01***40 | Screw | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Engine Related Parts And Electrical System : Self Fuel Supply Pump
| 01***14 | Bolt | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 21***80 | Filter | 1 |
Guard And Operator'S Cab
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Air Conditioning System (1/7)
| 01***20 | Bolt,(With Auto Emergency Steering) | 3 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***50 | Bolt (Kit) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Air Conditioning System (2/7)
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
| 21***50 | Nut | 2 |
| 22***50 | Pipe | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Air Conditioning System (3/7)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 5 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Air Conditioning System (4/7)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***35 | Screw | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Air Conditioning System (5/7)
| 21***40 | Screw | 4 |
| 21***60 | Hose-Clamp | 8 |
| 21***90 | Washer | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Air Conditioning System (6/7)
| 01***35 | Bolt | 8 |
| 01***23 | Washer,(With Auto Emergency Steering) | 16 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Air Conditioning System (7/7)
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
| 21***61 | Switch, Air Conditioning | 1 |
| 21***30 | Fuse 15a | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Cabin (1/6)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Screw | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Cabin (2/6)
| 01***04 | Nut,(For Air Conditioner Less) | 4 |
| 01***08 | Washer,(For Fixed Type Ripper) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Cabin (3/6)
| 01***25 | Bolt,(For Automatic) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 10 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Cabin (4/6)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Cabin (5/6)
| 21***40 | Ring, Snap | 8 |
| 21***30 | Spacer | 16 |
| 21***10 | Roof Hatch, Assembly | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Cabin (6/6)
| 21***10 | Screw | 4 |
| 21***40 | Screw | 20 |
| 21***60 | Washer | 8 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Control Valve Side Cover
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Electrical System (Operator'S Cab)
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***14 | Screw | 3 |
| 01***04 | Nut,(For Air Conditioner Less) | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Engine Side Cover
| 01***20 | Bolt,(With Auto Emergency Steering) | 15 |
| 01***40 | Bolt,(With Air Conditioner) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Floor Plate (1/2)
| 01***25 | Bolt,Without Revolution Sensor | 9 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***10 | Bolt (Itl) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Floor Plate (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 8 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Heating System (1/2)
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Heating System (2/2)
| 21***60 | Hose-Clamp | 8 |
| 22***10 | Hose | 3 |
| 22***20 | Reduction | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : L.H. And R.H. View Mirror (Optional)
| 01***20 | Screw | 4 |
| 01***25 | Screw | 2 |
| 21***20 | Spring Washer | 6 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Operator'S Cab (Equipment)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Operator'S Seat
| 01***14 | Screw | 4 |
| 01***80 | Screw | 2 |
| 21***60 | Washer,Spring | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Revolving Frame Under Cover
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 25 |
| 01***32 | Washer,(With Auto Emergency Steering) | 25 |
| 21***60 | Gasket | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Sound-Proofing
| 21***20 | Rabbet | 40 |
| 22***30 | Sheet | 1 |
| 22***40 | Sheet | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Guard And Operator'S Cab : Top And Front Guard (Cab)
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 2 |
Mark Plate
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Mark Plate : Equipment
| 21***30 | Gasket (Only For Tbg) | 1 |
| 22***10 | Valve (Only For Tbg) | 1 |
| 22***20 | Union (Only For Tbg) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Mark Plate : Mark Plate
| 21***40 | Plate, Arm Dimension | 2 |
| 21***50 | Plate, Safety, Radiator Cap | 1 |
| 21***60 | Plate, Dimension | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Mark Plate : Tools
| 21***70 | Wrench | 1 |
| 21***40 | Wrench, Strainer | 1 |
| 21***50 | Fitting | 1 |
Swing Circle And Final Drive
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Swing Circle And Final Drive : Swing Circle
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***80 | Bolt,(For Adjustable Rod) | 3 |
| 01***90 | Bolt | 36 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Swing Circle And Final Drive : Swing Machinery
| 22***70 | Ring, Nut | 1 |
| 22***90 | Bearing | 1 |
| 22***10 | Snap Ring | 1 |
Under Carriage
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Carrier Roller
| 06***06 | Bearing,Ball | 2 |
| 21***10 | Shaft | 1 |
| 21***20 | Collar | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Font Idler (For Rubber Shoe) (2/2)
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 4 |
| 01***10 | Bolt (Op) | 2 |
| 21***00 | Spring Washer | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Front Idler (For Rubber Shoe) (1/2)
| 21***50 | O-Ring | 2 |
| 21***50 | Spring Pin | 4 |
| 21***20 | Bushing | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Front Idler (For Steel Shoe) (1/2)
| 21***50 | O-Ring | 2 |
| 21***50 | Spring Pin | 4 |
| 21***20 | Bushing | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Front Idler (For Steel Shoe) (2/2)
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 4 |
| 01***10 | Bolt (Op) | 2 |
| 21***00 | Spring Washer | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Sprocket
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 24 |
| 01***40 | Screw | 32 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 24 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Track Roller
| 01***70 | Bolt, Accumulator Mounting Bracket | 40 |
| 21***30 | O-Ring | 2 |
| 21***00 | Spring Washer | 40 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Track Shoe (For Rubber Shoe (L=450)
| 22***60 | Rubber Shoe, Assembly | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Track Shoe (L=450 Mm)
| 01***30 | Bolt,(Tm8072-121) | 2 |
| 21***90 | Screw | 168 |
| 21***10 | Nut | 168 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Track Shoe (L=500 Mm)
| 21***90 | Screw | 168 |
| 21***10 | Nut | 168 |
| 22***33 | R.H. Track Shoe, Assembly | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Track Shoe (L=600 Mm)
| 21***90 | Screw | 168 |
| 21***10 | Nut | 168 |
| 22***53 | Track Shoe, Assembly | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Under Carriage : Under Carriage (For Steel Shoe)
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 12 |
Work Equipment
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : 1st Boom
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 21***20 | Bushing | 2 |
| 21***40 | Spacer | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : 2nd Boom
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***10 | Bolt,(Noise Suppression Spec.) | 2 |
| 20***40 | Spacer? 1.0mm | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : 2nd Boom Cylinder, L.H.
| 01***25 | Screw | 8 |
| 21***10 | Screw | 6 |
| 21***80 | Nut | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : 2nd Boom Cylinder, R.H.
| 01***25 | Screw | 8 |
| 21***10 | Screw | 6 |
| 21***80 | Nut | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Arm Cylinder
| 01***25 | Screw | 8 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 1 |
| 21***10 | Screw | 6 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Arm Cylinder (For 2-Piece Boom)
| 01***25 | Screw | 8 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 1 |
| 21***10 | Screw | 6 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Arm, L=1700 Mm
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 20***40 | Spacer? 1.0mm | 4 |
| 21***10 | Bushing | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Arm, L=2100 Mm
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 20***40 | Spacer? 1.0mm | 4 |
| 21***10 | Bushing | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Blade Cylinder
| 01***30 | Screw | 8 |
| 21***90 | Flange | 1 |
| 21***10 | Screw | 12 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Blade L=2050 Mm
| 01***50 | Bolt,(With Service Valve R.H.) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Blade L=2250 Mm
| 01***50 | Bolt,(With Service Valve R.H.) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Boom
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 20***40 | Spacer? 1.0mm | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Boom Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 6 |
| 21***70 | O-Ring | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Boom Swing Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 12 |
| 21***40 | Bushing | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Bucket
| 21***30 | Bucket, L=500 mm | 1 |
| 21***40 | Bucket, L=400 mm | 1 |
| 21***50 | Bucket, L=300 mm | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Bucket Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 6 |
| 21***40 | Bushing | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Bucket Link
| 20***40 | Spacer? 1.0mm | 10 |
| 21***20 | Bushing | 2 |
| 21***10 | Bushing | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping (Attachment Line)
| 21***10 | Union | 2 |
| 21***80 | O-Ring | 1 |
| 21***90 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (Arm Side)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 21***60 | O-Ring | 7 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (Boom Side)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
| 01***45 | Bolt, Bracket Mounting | 2 |
| 21***80 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (For 2-Piece Boom) (Boom Side)
| 21***80 | O-Ring | 3 |
| 21***90 | O-Ring | 3 |
| 22***60 | Union, Assembly | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (Optional Cock)
| 21***60 | O-Ring | 1 |
| 21***80 | O-Ring | 1 |
| 21***90 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping (Blade Line) (Lower)
| 21***70 | O-Ring | 2 |
| 21***10 | O-Ring ` | 2 |
| 21***70 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping (Fast Coupling Line)
| 20***40 | Spacer? 1.0mm | 4 |
| 21***80 | Pin | 2 |
| 21***80 | Elbow | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Hydraulic Piping Hammer
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Screw | 4 |
| 01***25 | Bolt, Seal Cover Mounting | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment : Swing Bracket
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 1 |
Work Equipment Control System
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (1/7)
| 01***30 | Screw | 34 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 34 |
| 57***20 | O-Ring | 17 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (2/7)
| 07***20 | O-Ring,Cover? Transfer Case | 8 |
| 07***10 | O-Ring,Plate | 7 |
| 07***12 | O-Ring, Divider Valve Mounting | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (3/7)
| 07***20 | O-Ring,Cover? Transfer Case | 1 |
| 07***10 | O-Ring,Plate | 1 |
| 07***34 | O-Ring,(For Front Attachment) | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (4/7)
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (5/7)
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 1 |
| 07***16 | O-Ring,Suction And Relief Valve | 1 |
| 07***09 | Ring,Back-Up (Kit) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (6/7)
| 07***07 | O-Ring - (K10) | 2 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 3 |
| 72***00 | Valve Ass'Y,Suction | 12 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (7/7)
| 01***30 | Screw | 4 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 4 |
| 07***20 | O-Ring,Cover? Transfer Case | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (For 2-Piece Boom)
| 01***30 | Screw | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Control Valve (Safety Valve)
| 72***00 | Safety Valve | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Final Drive
| 21***10 | Gear | 4 |
| 21***20 | Sun Gear | 1 |
| 21***30 | Pin | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (2nd Boom Cylinder Line)
| 01***35 | Bolt, Stopper | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (2nd Boom Cylinder Line) (Safety Valve)
| 01***30 | Bolt,(Water Separator Spec.) | 2 |
| 21***30 | Hose-Clamp | 2 |
| 21***70 | O-Ring | 3 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Arm Cylinder Line)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Arm Cylinder Line) (For 2-Piece Boom)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 21***20 | O-Ring | 1 |
| 21***60 | O-Ring | 6 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Arm Cylinder Line) (Safety Valve)
| 01***80 | Bolt,(For Long Lever Control) | 4 |
| 01***30 | Screw | 4 |
| 21***60 | Hose-Clamp | 20 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Blade Line) (Upper)
| 21***70 | O-Ring | 2 |
| 21***30 | O-Ring | 1 |
| 21***70 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Boom Cylinder Line)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 8 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Boom Cylinder Line) (Safety Valve)
| 01***25 | Screw | 8 |
| 01***00 | Screw | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Boom Cylinder Line) (With 2-Piece Boom)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 8 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Boom Swing Line)
| 21***60 | Hose-Clamp | 1 |
| 21***70 | O-Ring | 1 |
| 21***30 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line) (For 2-Piece Boom)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 8 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 21***60 | O-Ring | 5 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line) (Safety Valve) : Unit_01_of_02
| 21***60 | O-Ring | 2 |
| 21***70 | O-Ring | 2 |
| 21***70 | O-Ring | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line) (Safety Valve) : Unit_02_of_02
| 21***60 | O-Ring | 2 |
| 21***70 | O-Ring | 2 |
| 21***70 | O-Ring | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Delivery Line)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 3 |
| 01***35 | Screw | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Drain Line) (1/2)
| 21***30 | Elbow | 2 |
| 21***50 | Union | 1 |
| 21***30 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Drain Line) (2/2)
| 21***30 | Union | 1 |
| 21***30 | Union Tee | 1 |
| 21***30 | Elbow | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Mode System - Load Sensing)
| 21***90 | Union | 1 |
| 21***20 | Elbow | 1 |
| 21***10 | O-Ring | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Oil Cooler And Return Line)
| 21***60 | Union | 1 |
| 21***40 | Elbow | 1 |
| 21***40 | Union | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Overload Sensor Line)
| 01***50 | Screw | 2 |
| 01***08 | Washer,(For Fixed Type Ripper) | 2 |
| 21***00 | Elbow | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Ppc Valve Delivery Line)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Screw | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Ppc Valve Return Line)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Suction Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***35 | Screw | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Swing Motor Line)
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 10 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 10 |
| 21***70 | O-Ring | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Travel Line) (1/2)
| 21***70 | O-Ring | 4 |
| 21***30 | O-Ring | 1 |
| 21***70 | O-Ring | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Travel Line) (2/2)
| 21***60 | O-Ring | 1 |
| 21***70 | O-Ring | 1 |
| 21***40 | O-Ring | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Piping (Travel Speed)
| 21***90 | Union | 1 |
| 21***40 | Elbow | 2 |
| 21***20 | Elbow | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Pump (1/4)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 04***12 | Ring, Snap | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Pump (2/4)
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
| 04***18 | Bolt,(With Main Clutch Cooler) (D60p) | 1 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Pump (3/4)
| 04***20 | Ring, Snap | 1 |
| 70***80 | Cylinder Block, Assembly | 1 |
| 70***60 | Spacer | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Pump (4/4)
| 01***06 | Nut | 1 |
| 70***40 | Pc Valve, Assembly | 1 |
| 70***30 | Ls Valve, Assembly | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Hydraulic Tank
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Ppc Valve (Boom Swing, 2-Piece Boom)
| 01***20 | Screw | 1 |
| 21***50 | Ppc Valve | 1 |
| 21***60 | Support | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Ppc Valve (For Travel) (1/3)
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Ppc Valve (For Travel) (2/3)
| 21***40 | Ppc Valve, Assembly | 1 |
| 21***70 | Boot | 2 |
| 21***80 | Pedal Support, Assembly | 2 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Ppc Valve (For Travel) (3/3)
| 21***10 | Piston, Assembly | 4 |
| 21***20 | Damper, Assembly | 4 |
| 21***30 | Kit, Valve | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Ppc Valve, Blade
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Ppc Valve, L.H.
| 21***31 | Lever | 1 |
| 22***20 | Ppc Valve, L.H., Assembly | 1 |
| 22***50 | Kit, Lever | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Ppc Valve, R.H.
| 21***30 | Kit, Push-Button | 1 |
| 22***10 | Ppc Valve, R.H., Assembly | 1 |
| 22***50 | Kit, Lever | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Servocontrol Feed Unit
| 01***16 | Screw | 2 |
| 01***25 | Screw | 2 |
| 01***40 | Screw | 4 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Swing Motor (1/2)
| 04***20 | Ring, Retaining | 1 |
| 07***55 | O-Ring,(F4350-62a1 -14 ) | 1 |
| 07***45 | O-Ring,Cover | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Swing Motor (2/2)
| 01***25 | Screw | 2 |
| 07***07 | O-Ring - (K10) | 3 |
| 07***16 | O-Ring - Gear | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Swivel Joint
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 21***30 | Spring Washer | 2 |
| 21***40 | Fitting | 1 |
Komatsu : Pc75r-2(S/N 22e5210001-Up) : Work Equipment Control System : Swivel Joint (Mounting Parts)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 7 |
PC75R-2(S/N 22E5210001-Up) serial number reference
Locate the riveted PIN plate on the right-hand side of the cab lower frame, typically behind the front idler or beneath the operator's window. Read the 17-character ISO PIN; the first six digits (e.g., 22E521) identify the serial range prefix.
| Prefix | Identifies | Notes |
|---|---|---|
| 22E521 | PC75R-2 / PC75R-2HD | S/N 22E5210001-Up. Factory parts catalog and shop manual (WEBM004000) list this serial range for the PC75R-2 and PC75R-2HD. Verify with dealer for exact configuration. |
Frequently asked questions
What engine does the Komatsu PC75R-2 use?
The Komatsu PC75R-2 uses a Komatsu 4D98E-1FB diesel engine delivering 51 kW (68 hp) net power.
What is the operating weight of the PC75R-2?
The operating weight ranges from 7,160 to 7,950 kg (15,785 to 17,527 lb), varying by configuration and track type.
What model replaced the PC75R-2?
The PC75R-2 was succeeded by the PC78MR-6 in Komatsu's midi excavator lineup.
What PC75R-2(S/N 22E5210001-Up) owners discuss
What engine powers the PC75R-2 (S/N 22E5210001-Up) and what is its net horsepower?
The machine uses a Komatsu 4D98E-1FB engine. Net power is 51 kW (68 HP). This varies by configuration/series depending on regional emissions packages and specific serial breaks within the R-2 generation.
How does the CLSS hydraulic system behave, and what are common pressure-related issues?
The Closed Load Sensing System (CLSS) provides excellent control but can suffer from pressure loss if relief valves or shock valves fail. Loss of performance in one direction, particularly when traveling uphill, often indicates a faulty shock or relief valve. The system allows selection between 'Power' and 'Economy' modes to adjust flow and pressure.
What are the typical undercarriage wear patterns and inspection points for this machine type?
Undercarriage wear is a primary cost factor. Inspect tracks, rollers, sprockets, and idlers for uneven wear, loose tension, or cracked rollers. The standard track width is 450 mm, with options for 500 mm, 600 mm, or rubber tracks. Wear is accelerated by tight-space operation and lack of regular tensioning.
What are the known electrical and sensor quirks for the PC75R-2?
Operators report erratic gauge behavior (fuel/coolant) and ECU ticking sounds upon ignition, often traced to bad alternators or loose earth straps. The boom position sensor system is frequently disabled by owners due to damaged linkage arms or wiring ripped by tree limbs, which can cause operational faults if not properly managed.
What specific items must be checked when buying a used PC75R-2 (S/N 22E5210001-Up)?
Inspect the offset boom joints for wear at 3,000+ hours, as articulating joints degrade without consistent greasing. Check for brittle fuel lines that may break during removal. Verify the swing motor and slew bearing for grinding or clunking. Test all hydraulic functions for smooth response and check for oil leaks around the pump and cylinders. Have your dealer verify the exact serial range specifications and installed attachment package.
What are the transport dimensions and operating weight characteristics?
Operating weight is approximately 16,755 lb (7,600 kg). Transport dimensions are 5.875 m (19 ft 3 in) length, 2.05 m (6 ft 9 in) width, and 2.69 m (8 ft 9 in) height. The compact radius and reduced track gauge allow access to sites inaccessible to larger models.
What fluid specifications are recommended for this excavator?
Use Komatsu EO or TO hydraulic oil. Diesel engine oil should meet Komatsu specifications (e.g., 15W-40 equivalent). Coolant requires Super-coolant AF-NAC or equivalent long-life formula. Transmission and final drive oils should be EP80W-90 or EP85W-140 gear oil depending on the specific axle configuration.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Komatsu PC75R-2(S/N 22E5210001-Up). Related factory variants of the same model family:
PC75R-2(S/N 22E5200763-Up)PC75R-2(S/N 22E5200001-Up)
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