Komatsuhydraulic excavatorsmall ( - pc90)
Komatsu PC15R-8 DELUXE(S/N F21803-Up)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC15R-8 is a compact mini excavator designed for utility and construction work in confined spaces. It is powered by a Komatsu 3D68E-N3FB three-cylinder diesel engine producing 12.7 kW (17 hp) net power. The machine has an operating weight of 1,650 kg (3,638 lb) and was manufactured from 1999 to 2005. It succeeded the PC15-2 series and was followed by the PC15R-9. Configurations included standard and deluxe variants with varying attachment packages and emissions tiers.
The PC15R-8 introduced a closed load sensing hydraulic system for synchronized movement and improved fuel efficiency compared to its predecessors. It remains relevant in the used market due to its compact footprint, low ground pressure, and reliable Komatsu powertrain. The Deluxe variant often included enhanced operator comfort and additional auxiliary hydraulic lines for attachments. Parts availability is supported by a broad aftermarket network, though genuine Komatsu components remain the standard for longevity.
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 PC15R-8 DELUXE(S/N F21803-Up) specifications
Engine
| Model | 3D68E-N3FB |
| Gross Power | 17 hp (12.7 kW) |
| Net Power | 15.3 hp (11.4 kW) |
| Displacement | 47.8 cu in (0.78 L) |
| Cylinders | 3 |
| Emissions Tier | Tier 4 Final / EU Stage V |
Weights
| Operating Weight | 1,650 kg (3,637.7 lb) |
| Ground Pressure | 4.3 psi (29.6 kPa) |
Dimensions
| Transport Length | 12.29 ft (3,745 mm) |
| Transport Width | 3.29 ft (1,000 mm) |
| Transport Height | 7.31 ft (2,229 mm) |
| Tail Swing Radius | 3.52 ft (1,070 mm) |
| Track Shoe Width | 9.06 in (230 mm) |
| Undercarriage Length (on ground) | 3.34 ft (1,015 mm) |
Performance
| Max Dig Depth | 7.09 ft (2,160 mm) |
| Max Reach at Ground | 11.95 ft (3,640 mm) |
| Max Dump Height | 8.21 ft (2,500 mm) |
| Max Cutting Height | 11.42 ft (3,480 mm) |
| Swing Speed | 10.4 rpm |
| Travel Speed | 2.61 mph (4.2 km/h) |
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 | 20 L (5.3 gal) |
| Hydraulic System/Tank | 23 L (6.1 gal) |
| Engine Oil | 0.7 gal (2.8 L) |
| Cooling System | 0.8 gal (3.2 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
PC15R-8 DELUXE(S/N F21803-Up) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 2.8 L (0.74 gal) | Komatsu EO-10W-30 or equivalent 10W-30 diesel engine oil |
| Cooling system | 3.2 L (0.85 gal) | Komatsu Super Coolant (KSC) or equivalent ethylene glycol-based coolant |
| Fuel tank | 20 L (5.3 gal) | Diesel fuel meeting ASTM D975 or EN 590 standards |
| Hydraulic system total | 23 L (6.1 gal) | Komatsu TO-15 or equivalent ISO VG 46 hydraulic oil |
| Hydraulic tank | 15 L (4.0 gal) | Komatsu TO-15 or equivalent ISO VG 46 hydraulic oil |
| Final drive (each) | 0.35 L (0.09 gal) | Komatsu AX-1 or equivalent API GL-5 80W-90 gear oil |
| Swing drive | 0.35 L (0.09 gal) | Komatsu AX-1 or equivalent API GL-5 80W-90 gear oil |
| Pilot/other circuits | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Grease (spec only) | N/A | Komatsu Grease or equivalent lithium-complex EP2 grease |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu PC15R-8 DELUXE(S/N F21803-Up) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the PC15R-8 DELUXE(S/N F21803-Up) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize Komatsu KOWA oil analysis at every 500-hour interval to monitor engine wear metals and hydraulic contamination. Check coolant SCA concentration at 500 hours to prevent scaling in the 3D68E-N3FB engine. Monitor hydraulic oil particle count to protect the variable delivery pump. Track fuel filter replacement to ensure clean injection to the three-cylinder engine. Use KOMTRAX telematics data to adjust intervals based on actual load frequency and operating hours rather than fixed schedules alone.
Corrective & Common Repairs
Address frequent track tension issues by checking the 31 shoes per side for proper sag. Inspect the 230 mm track shoes for uneven wear caused by tight turning. Replace the hydraulic return filter if pressure drops affect boom drift. Check the 45.1 l/min pump flow for loss of power during combined movements. Inspect the fan belt tension and alternator output (45 amperes) for electrical reliability. Repair hydraulic hose leaks at high-pressure unions to maintain system integrity.
Overhaul & Rebuild Points
Plan for engine overhaul around 10,000 hours, focusing on the 3D68E-N3FB cylinder head and injection nozzles. Inspect the swing bearing for play and noise, as it supports the 1,650 kg weight. Check final drive oil for metal particles indicating gear wear. Examine the boom and stick welds for stress cracks near the pivot points. Replace the hydraulic pump if flow drops below 45.1 l/min. Inspect the undercarriage rollers and idlers for excessive wear before track failure.
Seasonal & Environment Servicing
In cold weather, ensure the coolant mixture prevents freezing in the 3.2 L cooling system. Check the fuel water separator daily to prevent ice blockage. In dusty environments, clean the radiator and oil cooler fins frequently to maintain the 11.4 kW output. Inspect the air filter restriction indicator more often. Use Komatsu EO or TO hydraulic oil suitable for the ambient temperature. Check the battery electrolyte level and charge state in extreme heat or cold.
PC15R-8 DELUXE(S/N F21803-Up) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM119255-55620 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| YM102103-55520 | O-Ring,(For Fuel Filter) | Fuel system service | Check fitment → |
| YM124550-55700 | Element,Fuel Filter | Fuel system service | Check fitment → |
| YM171051-92760 | Wrench,Fuel Filter? Water Separator | Fuel system service | Check fitment → |
| 3F05B2627 | Plate, Safety Fuel Filter | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PC15R-8 DELUXE(S/N F21803-Up) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E03 | Swing parking brake system fault | Swing parking brake solenoid valve circuit short or open; brake mechanism failure | Inspect swing parking brake solenoid wiring for shorts or opens; test solenoid resistance; verify brake release function |
| E05 | Hydraulic system controller fault | EPC solenoid valve drive system malfunction or controller connectivity issue | Check EPC solenoid valve drive circuits; inspect controller connectors for corrosion or damage |
| E10 | Engine controller power failure | Engine control drive system circuit malfunction or ECM power loss | Inspect ECM power connections, fuses, and ground wires; verify battery voltage at ECM |
| CA115 | Engine speed sensor and backup speed sensor failure | Faulty engine speed sensor, broken wiring, or connector corrosion | Replace engine speed sensor; verify voltage at pin connector; inspect wiring harness for damage |
| CA122 | Intake air pressure sensor feedback voltage too high | Intake air pressure sensor fault or wiring short to power | Verify intake pressure sensor operation; inspect sensor wiring for shorts or high resistance |
| CA123 | Intake air pressure sensor feedback voltage too low | Intake air pressure sensor short to ground or airflow restriction | Check for sensor short or airflow restriction; test sensor voltage and replace if faulty |
| CA441 | Battery voltage too low | Weak battery, faulty alternator, or poor charging system connection | Replace battery or alternator; check voltage regulator and charging circuit connections |
| CA442 | Battery voltage too high | Faulty voltage regulator or alternator overcharging | Replace alternator or voltage regulator; check charging system output |
| DGH2KB | Hydraulic oil temperature sensor short circuit | Hydraulic oil temperature sensor internal short or wiring fault | Replace hydraulic oil temperature sensor; inspect sensor wiring harness for damage |
| DW43KB | Travel high/low speed converter solenoid valve short circuit | Electrical short in travel speed control solenoid valve circuit | Replace travel speed solenoid valve; inspect solenoid wiring harness for shorts |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PC15R-8 DELUXE(S/N F21803-Up) attachments & work tools
Buckets
The Komatsu PC15R-8 operates in the mini excavator class with a reference bucket capacity of 0.04 m3 (0.06 yd3). Factory specifications list the minimum capacity at 0.02 m3 (0.03 yd3) and the maximum at 0.04 m3 (0.06 yd3). Aftermarket suppliers offer mini, midi, and heavy-duty digging buckets, as well as ditching and riddle variants, for this model. Pin-on mounting is standard for this size class, with quick coupler compatibility available through aftermarket S-Lock style systems.
Hydraulic hammers
The machine is equipped with a hydraulic pump flow capacity of 45.1 L/min (11.9 gal/min) and a system relief pressure of 20600 kPa (2987.8 psi). These parameters define the machine as a low-flow, standard-pressure unit suitable for mini-breakers in the 100–200 kg (220–440 lb) weight class. High-flow or medium-pressure breaker kits are not supported by the standard hydraulic circuit.
Quick couplers
Aftermarket S-Lock style quick couplers are available for the Komatsu PC15R-8. These mechanical locking systems allow for the rapid attachment and detachment of buckets and other tools without leaving the cab. Compatibility requires matching the coupler width to the specific bucket width selected for the machine.
Thumbs/grapples
Mechanical and hydraulic thumb attachments are available for the Komatsu PC15R-8. A common specification for this class is a 21-inch (533 mm) wide thumb. Heavy-duty grapples are also listed as compatible attachments for material handling applications.
Rippers
Ripper hooks are available as aftermarket attachments for the Komatsu PC15R-8. These tools are designed for breaking up hard ground or concrete. The attachment must be compatible with the machine's standard pin-on interface.
Hydraulic-kit notes
The Komatsu PC15R-8 utilizes a closed load sensing hydraulic circuit with a variable delivery pump. The standard hydraulic fluid capacity is 23 L (6.1 gal). Komatsu EO, TO, or AXO hydraulic oils are specified for this system. No high-flow auxiliary circuits are documented for this base model.
All PC15R-8 DELUXE(S/N F21803-Up) assemblies by section
Every catalogued assembly group for the Komatsu PC15R-8 DELUXE(S/N F21803-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 : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Attachment Control Pedal
| 3F***58 | Pedal | 1 |
| 3F***59 | Protection | 1 |
| 80***84 | Screw | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Attachment Control Pedal (Optional)
| 3F***59 | Protection | 1 |
| 3F***60 | Pedal | 1 |
| 3F***06 | Antislip | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Blade Control Lever
| 31***48 | Command Boot | 1 |
| 3F***58 | Lever | 1 |
| 3F***59 | Lever | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Boom Swing Control Pedal
| 3F***45 | Guide, Fork | 1 |
| 3F***62 | Protection, Pedal | 1 |
| 3F***63 | Pedal | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Counter Weight
| 3F***08 | Washer | 2 |
| 3F***50 | Ballast | 1 |
| 80***13 | Bolt | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Fuel Control Lever
| 31***48 | Command Boot | 1 |
| 3F***56 | Cable | 1 |
| 3F***57 | Fuel Lever | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : L.H. Servocontrol
| 39***13 | Hose | 2 |
| 39***81 | Hose | 2 |
| 39***01 | Hose | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Lubricating Oil System
| 20***09 | Union | 4 |
| 3F***00 | Hose | 1 |
| 3F***00 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : R.H. Servocontrol
| 39***73 | Hose | 1 |
| 39***81 | Hose | 2 |
| 39***14 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Revolving Frame
| 3F***56 | Frame, Revolving | 1 |
| 3F***28 | Cover | 1 |
| 3F***29 | Bushing | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Servocontrol Lock System
| 39***09 | Spacer | 1 |
| 3F***50 | Cylinder, Assembly | 1 |
| 3F***57 | Lever | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Side Protector
| 3F***02 | Protection, L.H | 1 |
| 3F***03 | Protection, R.H | 1 |
| 3F***07 | Washer | 8 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Support L.H. Ppc Valve
| 30***67 | Bushing | 1 |
| 39***30 | Spring | 1 |
| 3F***79 | Support | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Support R.H. Ppc Valve
| 30***67 | Bushing | 1 |
| 39***30 | Spring | 1 |
| 3F***80 | Support | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Control System And Revolving Frame : Travel Control Lever
| 3F***77 | Support | 1 |
| 3F***64 | Pin | 1 |
| 3F***66 | Cover | 1 |
Engine
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Camshaft And Driving Gear
| YM***22 | Retainer, Idle Gear | 1 |
| YM***02 | Nut | 1 |
| YM***00 | Tappet | 6 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Cooling Water System
| YM***22 | Screw | 2 |
| YM***02 | Screw | 4 |
| YM***00 | Water Pump Ass'Y | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Crankshaft And Piston
| YM***00 | Piston Ring Ass'Y | 3 |
| YM***81 | Piston, Assembly | 3 |
| YM***80 | Bolt | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Cylinder Block
| YM***30 | Thrust Metal Ass'Y | 2 |
| YM***00 | Main Metal Ass'Y (Std) | 4 |
| YM***00 | Plug | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Cylinder Head
| 87***43 | Motor, Assembly. (3d68-N3fbe) | 1 |
| YM***30 | Screw,Adjusting | 6 |
| YM***50 | Rocker Arm Ass'Y,Intake | 3 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Exhaust Manifold
| YM***00 | Manifold, Exhaust | 1 |
| YM***02 | Nut | 2 |
| YM***02 | Stud | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Flywheel - Lubricating Oil Sump
| YM***80 | Parallel Pin | 2 |
| YM***20 | Seal? Rear | 1 |
| YM***22 | Screw | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Fuel Injection Line
| YM***40 | Spacer, Valve Stop | 3 |
| YM***20 | Retainer, Pipe | 1 |
| YM***80 | Pipe | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Fuel Injection Pump
| YM***02 | Screw | 2 |
| YM***50 | Shim Ass'Y | 3 |
| YM***90 | Spring | 3 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Fuel Line
| YM***20 | Fuel Filter Ass'Y | 1 |
| YM***40 | Lever | 1 |
| YM***00 | O-Ring (Kit) | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Gasket Set (Optional) - Tool
| YM***10 | Gasket, Suction Manifold | 1 |
| YM***60 | Wrench,Fuel Filter? Water Separator | 1 |
| YM***00 | O-Ring (Kit) | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Gear Housing
| YM***22 | Housing Assembly., Gear | 1 |
| YM***40 | Cover | 1 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Generator
| YM***00 | Stator Ass'Y | 1 |
| YM***40 | Screw | 1 |
| YM***02 | Alternator A. (20a) | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Governor
| YM***00 | Pin, Cotter | 1 |
| YM***00 | Retainer, Shaft | 1 |
| YM***30 | Screw,Adjust | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Lubricating Oil Pump
| YM***50 | Nut | 1 |
| YM***00 | Gauge,Oil Level | 1 |
| YM***50 | Oil Pressure Transmitter | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Starter Motor
| YM***00 | Stopper Set | 1 |
| YM***10 | Holder Brush, Assembly | 1 |
| YM***70 | Magnetic Switch A | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine : Suction Manifold - Air Cleaner
| YM***10 | Gasket, Suction Manifold | 1 |
| YM***80 | Air Cleaner Support, Assembly | 1 |
| YM***82 | Bolt | 1 |
Engine Related Parts And Electrical System
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Air Filter - Muffler
| 3F***04 | Pipe, Suction | 1 |
| 3F***54 | Support | 1 |
| 3F***55 | Pipe | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Battery
| 3F***01 | Bracket | 1 |
| 3F***02 | Tie-Rod | 2 |
| 80***84 | Screw | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Electrical System (1/2)
| 31***00 | Acustic Alarm | 1 |
| 3F***73 | Support | 1 |
| 3F***74 | Switch | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Electrical System (2/2)
| 3F***02 | Bracket | 4 |
| 3F***05 | Plate, Ignition Panel | 1 |
| 80***84 | Screw | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Electrical System (Fuse And Line)
| 3F***51 | Support | 1 |
| 3F***04 | Plate | 1 |
| 3F***05 | Plate | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Electrical System (Rotary Beam Line) (Canopy)
| 80***86 | Washer | 1 |
| 80***12 | Screw | 3 |
| 80***08 | Nut | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 3F***58 | Damper | 4 |
| 3F***59 | Support | 1 |
| 3F***60 | Support | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 3F***06 | Protection | 1 |
| 3F***10 | Protection | 1 |
| 3F***04 | Protection | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 3F***52 | Profile | 1 |
| 3F***54 | Fuel Tank | 1 |
| 3F***55 | Float | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Power Take - Off
| 3F***50 | Joint, Assembly | 1 |
| 3F***00 | Cover | 1 |
| 80***10 | Bolt (Canopy) | 8 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Radiator
| 3F***60 | Support | 1 |
| 3F***61 | Protection | 1 |
| 3F***62 | Radiator, Assembly | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Engine Related Parts And Electrical System : Reserve Tank And Piping
| 3F***51 | Tank | 1 |
| 3F***00 | Hose | 1 |
| 3F***50 | Support | 1 |
Guard And Operator'S Cab
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Canopy
| 3F***56 | Canopy | 1 |
| 80***62 | Screw | 3 |
| 80***75 | Bolt | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Cover Ppc Valve
| 3F***71 | Rest, Arm | 2 |
| 3F***73 | Hood, R.H | 1 |
| 3F***74 | Hood, L.H | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Engine Hood
| 3F***60 | Lock, Assembly | 1 |
| 3F***62 | Hood, Engine, Assembly | 1 |
| 3F***64 | Gasket | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Floor Mat
| 3F***03 | Floor Mat | 1 |
| 81***51 | Plug | 2 |
| 81***42 | Plug | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Floor Plate (1/2)
| 3F***53 | Support, R.H | 1 |
| 3F***54 | Support, L.H | 1 |
| 3F***78 | Pin | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Floor Plate (2/2)
| 3F***75 | Hood | 1 |
| 3F***89 | Cover | 1 |
| 3F***61 | Cover | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Front Guard (Canopy)
| 3F***53 | Protection, Front | 1 |
| 80***34 | Bolt | 4 |
| 80***06 | Nut | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Left Side Cover
| 3F***57 | Hood, L.H | 1 |
| 3F***32 | Sheet | 1 |
| 3F***34 | Sheet | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Mirrors' Group
| 3F***59 | Support | 2 |
| 80***36 | Screw | 4 |
| 81***19 | Mirror, Driving | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Operator'S Seat
| 3F***64 | Operator'S Seat Stand | 1 |
| 80***84 | Screw | 6 |
| 80***86 | Washer | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Operator'S Seat (Optional)
| 80***84 | Screw | 4 |
| 80***31 | Screw | 4 |
| 80***01 | Spring Washer (With Stabilizers Only) | 8 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Platform
| 3F***52 | Platform | 1 |
| 80***25 | Screw | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Guard And Operator'S Cab : Right Side Cover
| 3F***58 | Hood, R.H | 1 |
| 3F***33 | Sheet | 1 |
| 3F***34 | Sheet | 1 |
Mark Plate
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Mark Plate : Mark Plate (Canopy)
| 30***82 | Plate, Idler Pressure | 3 |
| 30***85 | Mark Plate, Danger Pressure | 1 |
| 30***52 | Mark Plate, Operating, Control Lock | 2 |
Swing Circle And Swing Machinery
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Swing Circle And Swing Machinery : Swing Circle
| 80***10 | Bolt (Canopy) | 16 |
| 80***59 | Bolt | 18 |
| 80***02 | Spring Washer | 16 |
Under Carriage
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Hydraulic Piping (Travel Line) (Variable Gauge Undercarriage)
| 39***70 | Hose | 1 |
| 39***25 | Hose | 1 |
| 39***39 | Hose | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Hydraulic Piping (Travel Motor Line)
| 39***06 | Hose | 2 |
| 39***31 | Hose | 4 |
| 3F***56 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Idler (For Rubber Shoe)
| 3F***52 | Gasket | 2 |
| 3F***11 | Idler | 1 |
| 3F***12 | Pin | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Idler (For Steel Shoe)
| 3F***52 | Gasket | 2 |
| 3F***11 | Idler | 1 |
| 3F***12 | Pin | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Recoil Spring (For Rubber Shoe)
| 3F***53 | Piston Rod | 1 |
| 3F***54 | Cylinder | 1 |
| 3F***51 | Valve | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Recoil Spring (For Steel Shoe)
| 3F***50 | Cylinder | 1 |
| 3F***53 | Piston Rod | 1 |
| 3F***15 | Support | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Rubber Shoe
| 3F***51 | Rubber Shoe, Assembly | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Sprocket
| 20***49 | Sprocket | 2 |
| 80***45 | Screw | 32 |
| (8***4) | Travel Motor | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Track Frame
| 3F***54 | Frame, Track | 1 |
| 3F***40 | Cover | 2 |
| 50***04 | Slide Block | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Track Frame Cover
| 3F***55 | Cover, L.H | 1 |
| 3F***56 | Cover, R.H | 1 |
| 3F***19 | Cover | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Track Guard
| 3F***02 | Guard | 4 |
| 3F***03 | Fastening Plate | 4 |
| 3F***04 | Fastening Plate | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Track Roller (For Rubber Shoe)
| 3F***50 | Track Roller, Assembly | 6 |
| 3F***00 | Spacer | 12 |
| 3F***03 | Washer | 12 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Track Roller (For Steel Shoe)
| 3F***50 | Track Roller, Assembly | 6 |
| 3F***51 | Spacer | 12 |
| 3F***03 | Washer | 12 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Track Shoe (For Steel Shoe)
| 82***57 | Track Shoe, Assembly | 2 |
| 82***34 | Shoe, Assembly | 31 |
| 82***35 | Shoe Assembly., Master | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Variable Gauge Undercarriage
| 3F***55 | Cover, L.H | 1 |
| 3F***56 | Cover, R.H | 1 |
| 3F***33 | Spacer | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Under Carriage : Variable Gauge Undercarriage Cylinder
| 3F***01 | Piston | 1 |
| 3F***05 | Bushing | 2 |
| 3F***06 | Cylinder Head | 1 |
Work Equipment
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Arm
| 3F***18 | Bushing | 4 |
| 3F***19 | Gasket | 4 |
| 3F***01 | Pin | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Arm Cylinder
| 3F***18 | Bushing | 2 |
| 3F***19 | Gasket | 4 |
| 3F***52 | Piston Rod | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Blade
| 3F***18 | Bushing | 2 |
| 3F***19 | Gasket | 4 |
| 3F***57 | Pin | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Blade (Variable Gauge Undercarriage)
| 3F***18 | Bushing | 2 |
| 3F***19 | Gasket | 4 |
| 3F***57 | Pin | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Blade Cylinder
| 3F***21 | Bushing | 2 |
| 3F***22 | Gasket | 4 |
| 3F***50 | Blade Cylinder, Assembly | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Boom
| 3F***55 | Support | 1 |
| 3F***21 | Bushing | 2 |
| 3F***22 | Gasket | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Boom Cylinder
| 3F***21 | Bushing | 2 |
| 3F***22 | Gasket | 4 |
| 3F***01 | Piston | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Boom Swing Cylinder
| 3F***18 | Bushing | 2 |
| 3F***19 | Gasket | 4 |
| 3F***51 | Piston Rod | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Boom Swing Cylinder (Mounting Parts)
| 3F***57 | Pin | 1 |
| 50***42 | Shim | 2 |
| 80***08 | Bolt (Only With Cabin) | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Bucket
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Bucket Cylinder
| 3F***01 | Piston | 1 |
| 3F***05 | Bushing | 2 |
| 3F***06 | Cylinder Head | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Bucket Link
| 3F***18 | Bushing | 2 |
| 3F***19 | Gasket | 2 |
| 3F***00 | Lever, R.H | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Bucket Pin
| 3F***00 | Pin | 2 |
| 50***42 | Shim | 6 |
| 80***63 | Bolt | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Cylinder Cover
| 3F***10 | Protection | 1 |
| 3F***11 | Slide Block | 2 |
| 80***84 | Screw | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (1/4) (Optional)
| 39***53 | Hose | 1 |
| 39***54 | Hose | 1 |
| 39***77 | Hose | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (2/4) (Optional)
| 39***83 | Hose | 1 |
| 39***50 | Hose | 1 |
| 39***13 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (4/4)
| 20***76 | Body | 1 |
| 20***77 | Fitting | 1 |
| 20***79 | Plug | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (Blade Cylinder Line) (Down) (Variable Gauge Undercarriage)
| 20***43 | Union | 1 |
| 39***39 | Hose | 1 |
| 39***42 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (Blade Line) (Lower)
| 39***16 | Hose | 1 |
| 39***17 | Hose | 1 |
| 50***06 | Elbow | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (For Additional Equipment) (1/4) (Standard)
| 39***53 | Hose | 1 |
| 39***54 | Hose | 1 |
| 39***07 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (For Additional Equipment) (2/4) (Standard)
| 39***36 | Union | 2 |
| 39***47 | Hose | 1 |
| 39***16 | Sleeve | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (For Additional Equipment) (3/4)
| 39***49 | Hose | 2 |
| 3F***25 | Clamp | 2 |
| 3F***54 | Pipe, R.H | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Hydraulic Piping (Variable Gauge Undercarriage)
| 39***40 | Hose | 1 |
| 39***06 | Hose | 1 |
| 3F***08 | Protection | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Long Arm (1/2)
| 3F***18 | Bushing | 4 |
| 3F***19 | Gasket | 4 |
| 3F***01 | Pin | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Long Arm (2/2)
| 3F***52 | Pipe | 1 |
| 3F***53 | Pipe | 1 |
| 3F***54 | Clamp | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment : Swing Bracket
| 3F***01 | Bracket, Assembly | 1 |
| 3F***55 | Pin | 1 |
| 3F***56 | Pin | 1 |
Work Equipment Control System
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (1/10)
| 3F***52 | Control Valve | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (10/10)
| 89***79 | Suction Valve, Assembly | 4 |
| 89***04 | O-Ring | 1 |
| 89***38 | Holder, Valve W/Case | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (2/10)
| 89***62 | Cover, Assembly | 1 |
| 89***63 | Valve | 2 |
| 89***64 | Screw | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (3/10)
| 80***47 | Bolt | 4 |
| 89***41 | O-Ring | 1 |
| 89***65 | O-Ring | 9 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (4/10)
| 89***69 | O-Ring | 1 |
| 89***73 | Cover, Assembly | 3 |
| 89***74 | Cover | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (5/10)
| 89***22 | Spring | 4 |
| 89***55 | Gasket | 8 |
| 89***39 | O-Ring | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (6/10)
| 89***37 | Plug | 3 |
| 89***05 | O-Ring | 14 |
| 89***10 | Valve | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (7/10)
| 89***29 | Screw | 3 |
| 89***54 | O-Ring | 1 |
| 89***71 | O-Ring | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (8/10)
| 89***33 | O-Ring | 1 |
| 89***80 | Ring, Wear | 1 |
| 89***40 | Safety Valve, Assembly | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Control Valve (9/10)
| 89***33 | O-Ring | 1 |
| 89***39 | Relief Valve, Assembly | 1 |
| 89***37 | O-Ring | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Arm Cylinder Line)
| 39***13 | Hose | 1 |
| 39***14 | Hose | 1 |
| 3F***65 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Blade Line And Variable Gauge Undercarriage) (Upper)
| 39***40 | Hose | 1 |
| 39***04 | Hose | 1 |
| 39***42 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Blade Line) (Upper)
| 39***04 | Hose | 2 |
| 3F***67 | Union | 1 |
| 3F***68 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Boom Cylinder Line)
| 39***05 | Hose | 2 |
| 3F***67 | Union | 1 |
| 3F***69 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Boom Swing Line)
| 39***03 | Hose | 1 |
| 39***04 | Hose | 1 |
| 3F***67 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line)
| 39***11 | Hose | 1 |
| 39***12 | Hose | 1 |
| 3F***67 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Delivery Line)
| 30***60 | Union | 1 |
| 30***71 | Plug | 2 |
| 30***59 | Plug | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Drain)
| 39***24 | Hose | 1 |
| 39***14 | Hose | 1 |
| 3F***52 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Oil Cooler And Return Line)
| 39***13 | Hose | 1 |
| 39***15 | Hose | 1 |
| 39***17 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Servocontrol Line)
| 39***13 | Union | 1 |
| 39***09 | Hose | 1 |
| 39***10 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Suction Line)
| 39***04 | Sleeve | 1 |
| 3F***51 | Flange | 1 |
| 80***45 | Screw | 4 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Swing Motor Line)
| 39***05 | Hose | 1 |
| 39***06 | Hose | 1 |
| 3F***51 | Union | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Travel Motor Line) (Upper)
| 39***12 | Hose | 1 |
| 39***02 | Hose | 1 |
| 39***01 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping (Travel Motor Line) (Upper) (Variable Gauge Undercarriage)
| 39***84 | Hose | 2 |
| 39***02 | Hose | 1 |
| 39***01 | Hose | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping L.H. (Servocontrol Line)
| 39***72 | Hose | 1 |
| 39***76 | Hose | 1 |
| 3F***54 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Piping R.H. (Servocontrol Line)
| 39***71 | Hose | 1 |
| 39***07 | Hose | 1 |
| 3F***54 | Union | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Pump (1/2)
| 3F***51 | Hydraulic Pump, Assembly | 1 |
| 84***12 | Shaft | 1 |
| 84***13 | Rotary Group, Assembly | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Pump (2/2)
| 84***22 | Kit, Gasket | 1 |
| 84***25 | Washer | 1 |
| 84***26 | Spring | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Hydraulic Tank
| 3F***52 | Plug | 1 |
| 3F***53 | Strainer | 1 |
| 3F***54 | Hydraulic Tank | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Ppc Valve (Attachment)
| 89***83 | Ppc Valve | 1 |
| 89***12 | Body Valve | 1 |
| 89***13 | Shim, 0.300 mm | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Ppc Valve, L.H.
| 84***50 | Ppc Valve, L.H., Assembly | 1 |
| 84***53 | Ppc Valve, R.H | 1 |
| 84***25 | Catch | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Ppc Valve, L.H. (Variable Gauge Undercarriage)
| 84***51 | Ppc Valve, L.H., Assembly | 1 |
| 84***23 | Lever With Push-Button | 1 |
| 84***24 | Kit, Push-Button | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Ppc Valve, R.H.
| 84***52 | Ppc Valve, R.H | 1 |
| 84***23 | Lever With Push-Button | 1 |
| 84***24 | Kit, Push-Button | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Swing Motor
| 84***02 | Swing Motor A | 1 |
| 84***03 | Cartridge | 2 |
| 84***04 | Valve Seat | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Swivel Joint
| 20***03 | Pin | 1 |
| 20***05 | Gasket | 1 |
| 20***06 | Ring, Wear | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Swivel Joint (Mounting Parts)
| 3F***01 | Plate | 1 |
| 80***87 | Bolt | 4 |
| 80***08 | Bolt (Only With Cabin) | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Swivel Joint (Mounting Parts) (Variable Gauge Undercarriage)
| 3F***00 | Plate | 1 |
| 80***87 | Bolt | 4 |
| 80***09 | Screw | 2 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Swivel Joint (Variable Gauge Undercarriage)
| 20***04 | Plug | 9 |
| 20***53 | Kit, Gasket | 1 |
| 20***54 | Shaft | 1 |
Komatsu : Pc15r-8 Deluxe(S/N F21803-Up) : Work Equipment Control System : Travel Motor
| 84***94 | Travel Motor | 2 |
| 84***81 | Plug | 3 |
| 84***82 | Washer | 3 |
PC15R-8 DELUXE(S/N F21803-Up) serial number reference
The PIN plate is riveted to the right-hand side of the cab on the lower frame, typically just behind the front idler or beneath the operator's window. The prefix is the first character of the 17-character ISO PIN stamped on this plate.
| Prefix | Identifies | Notes |
|---|---|---|
| F | PC15R-8 | Serial range F21803-Up. Factory spec sheet for this range. |
Frequently asked questions
What engine does the Komatsu PC15R-8 use?
The Komatsu PC15R-8 uses a Komatsu 3D68E-N3FB three-cylinder diesel engine with a displacement of 0.78 liters. It produces 12.7 kW (17 hp) at 2,600 rpm and 49 Nm of torque at 1,800 rpm.
What is the operating weight of the PC15R-8?
The operating weight of the Komatsu PC15R-8 is 1,650 kg (3,638 lb). This weight can vary slightly depending on the configuration, counterweight, and attachment package.
What model replaced the Komatsu PC15R-8?
The Komatsu PC15R-8 was succeeded by the PC15R-9 series. The PC15R-8 was manufactured from 1999 to 2005.
What PC15R-8 DELUXE(S/N F21803-Up) owners discuss
What engine powers the PC15R-8 DELUXE (S/N F21803-Up) and what are its key performance specs?
The machine uses a Komatsu 3D68E-N3FB diesel engine. It produces 11.4 kW (15.3 hp) net power. The fuel tank capacity is 20.1 L (5.3 gal). The engine is designed for low emissions and economical operation in compact applications. Note: Some sources cite 12.7 kW (17 hp) for similar PC15R-8 configurations; values vary by configuration/series.
How does the hydraulic system behave, and what are common signs of wear?
The PC15R-8 uses a closed load-sensing hydraulic circuit with a variable delivery pump, ensuring smooth, synchronized combined movements. Common issues include slow hydraulic functions when the oil is hot, indicating internal leakage in the pump, main control valve, or cylinders. If all functions are slow, check hydraulic oil level, filter condition, and engine RPM before assuming pump failure. If only one function is slow, inspect the specific cylinder, control valve spool, or load-holding valve.
What are typical undercarriage and wear patterns for this mini-excavator?
The machine has an operating weight of 1,650 kg (3,638 lb) and a track width of 230 mm. Common wear items include track shoes, track rollers, and carrier rollers. Tracks may loosen repeatedly if the tensioner fails or if debris packs into the undercarriage. When removing or installing tracks, ensure no one stands at either end, as the track can separate suddenly. Check track tension and roller condition if the machine pulls to one side during travel.
What are common electrical or sensor-related quirks for this series?
The machine relies on electronic control systems. Common issues include intermittent starting, dashboard failure, or random shutdowns caused by faulty sensors or unstable power supplies. Check battery state of charge, battery terminals, and engine/chassis grounds if the engine will not start. Verify the safety lever switch if the machine starts but will not move. Multiple fault codes often point to battery, ground, or connector issues rather than component failure.
What should be checked when buying a used PC15R-8 DELUXE (S/N F21803-Up)?
Verify the serial number prefix 'F' and range starting at 21803. Check the engine model (3D68E-N3FB) and ensure it matches the serial range documentation. Inspect the cooling package (radiator, hydraulic oil cooler, charge-air cooler) for packed debris between heat exchangers. Test hydraulic performance cold and hot to detect internal leakage. Check for track separation risks and ensure the safety lever switch functions correctly. Confirm the fuel tank capacity is 20.1 L (5.3 gal) and inspect for fuel system restrictions.
What are the critical torque specifications for engine service?
High-pressure tube unions: 29 ± 34 Nm (21.3 ± 25 lb.ft). Injection nozzles: 50 ± 53 Nm (36.8 ± 39 lb.ft). Screws (4): 23 ± 29 Nm (16.9 ± 21.4 lb.ft). Screws (5): 45 ± 52 Nm (33.2 ± 38.3 lb.ft). Nuts: 44 ± 53 Nm (32.4 ± 39 lb.ft).
What are the fluid specifications and capacities?
Hydraulic system fluid capacity: varies by configuration/series. Engine oil fluid capacity: varies by configuration/series. Cooling system fluid capacity: varies by configuration/series. Use Komatsu EO, TO, or AXO hydraulic oil specifications. For machines with synthetic biodegradable oil (HEES), follow specific draining procedures.
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 PC15R-8 DELUXE(S/N F21803-Up). Related factory variants of the same model family:
PC15R-8 DELUXE(S/N F22426-Up)
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