Komatsuhydraulic excavatorsmall ( - pc90)
Komatsu PW110R-1(S/N 2260000001-Up)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PW110R-1 is a wheeled midi excavator in the roughly 10-11 tonne class, engineered and built for European road and utility work where axle travel beats a tracked undercarriage. This serial range, S/N 2260000001-Up, runs Komatsu's own S4D106E-1FB (4D106-1FB) diesel: a 4-cylinder, turbocharged, mechanically governed engine displacing 4.412 L, rated at roughly 71.8 kW (96 hp) gross and about 69.3 kW net. Operating weight varies by build, from around 9.7 t up to about 11.2 t, depending on boom, arm, tires, and counterweight. It followed the original PW110R (1999-2001) and ran through roughly 2000-2010, offered with a monoboom (one-piece) or two-piece offset boom, short or long dipper arm, single or twin tires, and a dozer blade or outrigger-style stabilizer legs, all riding on a four-wheel-drive hydrostatic driveline with epicyclic hub reduction gears at each wheel.
Within the PW110R-1 generation, Komatsu made running production changes at later serial breaks; the 2260000001-Up range is the original baseline build for this generation, ahead of those later revisions, and it keeps the simpler mechanically governed engine rather than any electronically controlled unit. That simplicity is exactly why it still matters in the used and parts market today: with no engine ECM and no digital fault codes, it is cheaper to keep diagnosing and running in the field than the electronically controlled PW118MR machines that eventually replaced the line. Now well past 15 years old, most of these machines are bought and kept alive for parts and rebuilds, with the heaviest demand on hydraulic pumps and motors, axle and hub reduction components, the swing circle, and engine top-end parts for shops that want a straightforward diesel excavator without an aftertreatment system to manage.
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 PW110R-1(S/N 2260000001-Up) specifications
Engine
| Engine model | Komatsu 4D106-1FB, turbocharged, direct-injection, low-emission inline diesel |
| Gross power (ISO 14396) | 71.8 kW / 96.3 HP @ 2,000 rpm |
| Net power | 69.3 kW / 92.9 HP |
| Max. torque (80/1269/EC) | 400 Nm @ 1,500 rpm |
| Displacement / cylinders | 4.412 L (4,412 cm³), 4 cylinders |
| Emissions tier | EU Stage II |
Weights
| Operating weight, basic version, monoboom | 9,730 kg |
| Operating weight, basic version, two-piece boom | 10,150 kg |
| Operating weight, with rear blade | 9,910 kg (monoboom) / 10,330 kg (two-piece boom) |
| Operating weight, with 4 stabilisers | 10,640 kg (monoboom) / 11,060 kg (two-piece boom) |
| Operating weight, with blade + stabilisers | 10,820 kg (monoboom) / 11,240 kg (two-piece boom) |
| Operating weight range (all configurations) | 9,730 kg to 11,240 kg, depending on boom type and undercarriage equipment (blade/stabilisers); all figures per ISO 6016 with 1,850 mm arm, 0.33 m³ bucket, operator, lubricants and full tank |
| Ground pressure | Not applicable — wheel/tire undercarriage; no ground-pressure figure published for this configuration |
| Transport weight | Not separately published; operating weight figures above already reflect full fluids and standard equipment |
Dimensions
| Transport width | 2.50 m (2,500 mm) |
| Transport height | 3.09 m (3,090 mm) |
| Transport length | Reported between 6.07 m and 6.54 m depending on source and boom/arm configuration — not fully resolved, varies by configuration |
| Axle tread width | 2,500 mm |
| Tire size | 9.00-20 coupled (standard); 18-19.5 single (optional) |
| Steering radius | 6,850 mm with two-wheel steering; 4,050 mm with four-wheel steering |
| Tail swing radius | Not documented in available sources for this configuration |
Performance
| Max digging depth | 3.79 m with standard 1,850 mm arm; 3.95 m with 2,000 mm long arm |
| Max digging reach | 6.56 m with standard 1,850 mm arm; 6.65 m with 2,000 mm long arm |
| Swing speed | 8.5 rpm |
| Travel speed | 4-range hydrostatic transmission: 4.0 km/h (1st) / 9.0 km/h (2nd) / 14 km/h (3rd) / 32 km/h (4th, max) |
| Drawbar pull (max traction force) | 67.75 kN (6,775 daN / 6,900 kg) |
| Max digging/dumping height | Not documented in available sources |
| Gradeability | Not documented in available sources |
Forces
| Bucket digging (breakout) force (ISO 6015) | 73.5 kN (7,260 daN / 7,500 kg) |
| Arm/stick digging force, standard 1,850 mm arm (ISO 6015) | 44.5 kN (4,458 daN / 4,544 kg) |
| Arm digging force, long 2,000 mm arm | Not separately published |
Service capacities (summary)
| Fuel tank | 150 L |
| Hydraulic system (tank) | 94 L |
| Engine oil | 10.5 L |
| Cooling system | 18 L |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
PW110R-1(S/N 2260000001-Up) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 12.5 L (3.3 US gal) | Komatsu genuine engine oil (EO series), API CD/CE class. Grade selection by ambient temperature: SAE10W in cold climates, SAE30 in warm climates, SAE10W-30 or SAE15W-40 as an all-season option. |
| Cooling system | 18 L (4.8 US gal) | Komatsu supercoolant / permanent-type antifreeze mixed with water, or plain water plus a separate anti-freeze/corrosion-inhibitor additive depending on climate. Permanent-type coolant is preferred for year-round corrosion protection. |
| Fuel tank | 150 L (39.6 US gal) | Automotive-grade diesel (gasoil). Low-sulphur diesel recommended; fuel grade adjusted for cold-weather cetane/cloud-point needs in winter. |
| Hydraulic system total (incl. tank, lines, cylinders) | approx. 180 L (47.6 US gal) full system | Komatsu genuine hydraulic oil (HO series). Viscosity graded by ambient temperature, similar to the engine oil ladder (light grade for cold start, heavier grade for hot climates). |
| Hydraulic tank (refill only) | approx. 84 L (22.2 US gal) refill quantity | Same Komatsu HO-series hydraulic oil as the full system; refill volume is smaller than total system volume because cylinders and lines stay filled. |
| Front axle differential/final drive housing | 9 L (2.4 US gal) differential + 0.8 L (0.2 US gal) per wheel-end final drive | UTTO-type transaxle fluid (Komatsu axle oil equivalent), rated for wet-brake and planetary hub-reduction service. |
| Rear axle differential/final drive housing | 9 L (2.4 US gal) differential + 0.8 L (0.2 US gal) per wheel-end final drive | UTTO-type transaxle fluid (Komatsu axle oil equivalent), same spec as front axle. |
| Propel transfer gearbox | approx. 1.6 L (0.4 US gal) | Komatsu genuine gear oil, API GL-5 class (TO series). |
| Swing drive (upper structure slew reduction) | approx. 3.5 L (0.9 US gal) | Komatsu genuine gear oil, API GL-5 class (TO series). |
| Grease points (boom/arm/bucket pins, slew ring, general chassis) | spec only, no fixed fill volume | Komatsu genuine multipurpose lithium EP grease (G2-LI) for general pin and bushing points. Molybdenum-disulphide-fortified grease is the Komatsu alternative for heavy-load bucket/linkage pins subject to shock loading. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu PW110R-1(S/N 2260000001-Up) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the PW110R-1(S/N 2260000001-Up) beyond the schedule
Predictive maintenance & fluid analysis
The S4D106E-1FB engine carries no ECM and throws no fault codes, so scheduled oil sampling is the main way to catch trouble early on this machine. Pull engine oil, axle and hub reduction, swing drive, and hydraulic tank samples at each interval and watch for metal in the hydrostatic drive motors and hub planetaries - these wear silently long before a leak or noise shows up. Track turbocharger boost and exhaust color by eye, since there is no telematics layer flagging it for you.
Corrective & common repairs
Common failure points on this generation are the hub reduction seals on the front and rear axles, which weep gear oil once the epicyclic seals harden with age, and the propeller shaft U-joints feeding the hydrostatic drive. Boom foot and dipper pins loosen faster on two-piece boom units than on monoboom due to the added offset pivot. Swing bearing lubrication gaps show up as play or grinding under load. Check king pin bushings on the steering axle if the machine wanders on the road.
Overhaul & rebuild points
At major overhaul, expect work on the turbocharger and injection pump on the S4D106E-1FB, since both are original components with no aftertreatment to mask wear. Hydraulic piston pumps and the swing motor are the next wear items on a machine this age, followed by the front and rear axle differentials and hub reduction planetaries. Swing circle bearing and gear backlash should be checked before a rebuild is called complete, since regreasing alone will not fix a worn ring.
Seasonal & environment servicing
Being wheeled rather than tracked, this excavator is more exposed to road salt and standing water around the axles, hub seals, and propeller shaft than a tracked sibling; rinse and re-grease those points after winter road work. Cold starts on the mechanically governed engine need correct-viscosity oil and a working cold-start aid, since there is no electronic strategy to compensate. In hot, dusty conditions, clean the radiator and oil cooler fins more often - the hydrostatic drive circuit runs hot under sustained travel.
PW110R-1(S/N 2260000001-Up) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM129470-55610 | Body, Fuel Filter | Fuel system service | Check fitment → |
| YM120324-55760 | Element, Fuel Oil | Fuel system service | Check fitment → |
| YM119005-35100 | Oil Filter Ass'Y | Lubrication service | Check fitment → |
| 21D-60-11170 | Oil Filter, Assembly | Lubrication service | Check fitment → |
| 226-60-11120 | Intake Oil Filter | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PW110R-1(S/N 2260000001-Up) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant temperature gauge - red zone / overheat buzzer | Engine coolant temperature has risen past the safe operating range | Low coolant level, clogged radiator core, failed thermostat, slipping or broken fan belt, or a faulty water pump | Idle down and stop in a safe spot, let the engine cool, then check coolant level and radiator fins for blockage before restarting; do not remove a hot radiator cap |
| Charge (battery/generator) warning lamp | Alternator is not charging the battery | Worn, glazed, or broken alternator belt, a failed alternator, or loose/corroded battery and alternator wiring | Check belt tension and condition and inspect battery terminals and alternator connections first, then bench-test the alternator if the lamp stays lit above idle |
| Air cleaner clogging warning lamp | Air filter restriction has reached the clogging threshold and intake airflow to the engine is restricted | Dirty or saturated primary air filter element, a cracked element, or a poorly seated filter housing | Inspect the element, tap out or replace it per the clogged-filter interval, and check the housing seal and intake ducting for leaks |
| Preheating (glow) indicator lamp | Intake air preheat circuit is energized to aid cold-weather starting | Normal function in low ambient temperatures; if the lamp fails to light or stays on far longer than normal, the preheat relay, timer, or heater circuit is suspect | Wait for the lamp to go out before cranking in cold weather; if it never illuminates or will not extinguish, have the preheat relay and wiring checked |
| Engine oil pressure warning lamp | Engine oil pressure has dropped below the minimum allowed level | Low oil level, a clogged oil filter, worn oil pump, or a faulty oil pressure switch/sender | Stop the engine immediately, check oil level and filter condition, and verify the pressure switch before restarting |
| Fuel level warning lamp | Fuel in the tank has dropped to the reserve level | Normal low-fuel condition; an early or erratic trigger points to a faulty fuel level sender or float | Refuel as needed; if the gauge reads inconsistently, check the sender unit and its wiring |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PW110R-1(S/N 2260000001-Up) attachments & work tools
Buckets
General-duty (GD) pin-on buckets for this wheeled midi-class machine range roughly 0.09-0.4 m³ (3-14 ft³), with the standard-arm GD bucket around 0.4 m³ (14 ft³) and about 1.0 m (39 in) wide. Heavy-duty (HD) and rock buckets sit toward the lower end of that capacity range with reinforced edges and wider tooth spacing; exact HD capacity varies by configuration/series. Pin-on mounting is standard; a factory-aligned hydraulic quick coupler is available for this class so the same pin geometry also accepts coupler-mounted buckets.
Hydraulic hammers
This machine's operating-weight class (about 9.7-11.2 t) matches a light-medium breaker bracket, roughly 300-400 kg breaker class, with a tool/moil diameter near 64-75 mm and oil-flow demand around 30-60 L/min (8-16 US gpm) at 10-16 MPa (1450-2320 psi). This is a size-class match rather than one named model, and breaker weight class varies by configuration/series and by breaker brand.
Quick couplers
Couplers built for this weight class are symmetric wedge-type units sized for roughly 8-18 t carriers, offered as manual/mechanical or fully hydraulic cab-operated versions. Aftermarket pin-grabber and wedge-lock couplers built for the same 9-11 t bracket are also common in the field and share the bucket pin spacing used by pin-on buckets.
Thumbs/grapples
Hydraulic thumb kits for this size class bolt or clamp to the arm and are sized to the roughly 45-50 mm (1.75-2 in) bucket-pin diameter typical of 9-11 t excavators. No factory-published thumb or grapple kit specific to this wheeled model was found; field-fit aftermarket thumb kits built for this weight class are the norm.
Rippers
No factory or published ripper attachment is documented for this wheeled midi excavator. Single-shank rippers are offered for sibling crawler models in the same size class, but a verified ripper fitment for this wheeled machine was not found — confirm with a dealer if a ripper is needed.
Hydraulic-kit notes
Published literature for this serial range does not list auxiliary-circuit flow or pressure figures. In practice a machine this size needs at minimum a one-way auxiliary circuit for a breaker, and a two-way (bi-directional) circuit for thumbs, compactors, or rotating attachments — confirm the circuit actually fitted to a given serial with a dealer before ordering a work tool.
All PW110R-1(S/N 2260000001-Up) assemblies by section
Every catalogued assembly group for the Komatsu PW110R-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-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 | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Hydraulic Piping (Arm And Swing Ppc Valve Line) (2/2)
| 21***20 | Union | 2 |
| 21***60 | O-Ring | 4 |
| 21***50 | Hose | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Hydraulic Piping (Blade Valve Line)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 21***30 | Nut | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Hydraulic Piping (Boom And Bucket Ppc Valve Line) (2/2)
| 21***10 | Union Tee | 1 |
| 21***60 | O-Ring | 3 |
| 21***40 | Hose | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Hydraulic Piping (Boom Swing Ppc Valve Line)
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Hydraulic Piping (Travel Ppc Valve Line) : Unit_01_of_02
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Screw | 4 |
| 01***25 | Bolt, Seal Cover Mounting | 5 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Hydraulic Piping (Travel Ppc Valve Line) : Unit_02_of_02
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Screw | 4 |
| 01***25 | Bolt, Seal Cover Mounting | 5 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Outrigger Control Lever (1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 21***30 | Nut | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Outrigger Control Lever (2/2)
| 21***80 | Union | 6 |
| 21***40 | Union | 2 |
| 21***60 | O-Ring | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Revolving Frame
| 01***80 | Bolt | 4 |
| 21***10 | Washer | 8 |
| 22***10 | Frame, Revolving | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Control System And Revolving Frame : Steering Wheel
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Engine
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Air Intake Manifold
| YM***00 | Heather Air | 1 |
| YM***02 | Screw | 9 |
| YM***41 | Pipe | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Camshaft And Driving Gear
| YM***50 | Bearing, Thrust | 1 |
| YM***00 | Gear,Injection Pump Drive | 1 |
| YM***00 | Gear | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Cooling Water System
| YM***40 | Tube | 1 |
| YM***02 | Screw | 2 |
| YM***10 | Protector | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Crankshaft And Piston
| YM***00 | Connecting Rod, Assembly | 4 |
| YM***00 | Assembly, Piston (+0.25 mm) | 4 |
| YM***80 | Gear, Ring | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Cylinder Block
| YM***00 | Screw | 18 |
| YM***20 | Screw | 10 |
| YM***40 | Bearing, Thrust (+0.25 mm) | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Cylinder Head
| 22***00 | Motor, Assembly | 1 |
| 72***00 | Head,Assembly | 1 |
| YM***00 | Lifter | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Engine Stop Device
| YM***00 | Pin, Cotter | 2 |
| YM***02 | Nut | 1 |
| YM***20 | Joint | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Exhaust Manifold And Silencer
| YM***80 | Packing | 1 |
| YM***22 | Screw | 6 |
| YM***00 | Muffler | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Feed Pump
| YM***40 | Gasket | 4 |
| YM***60 | O-Ring | 2 |
| YM***00 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Flywheel - Lubricating Oil Sump
| YM***10 | Oil Sump | 1 |
| YM***80 | Parallel Pin | 2 |
| YM***52 | Screw | 10 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Fuel Injection Line
| YM***40 | Injection Pipe N. 4 | 1 |
| YM***02 | Bolt Plated | 1 |
| YM***20 | Spring | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Fuel Injection Pump
| YM***00 | Segment | 4 |
| YM***40 | Gasket | 2 |
| YM***30 | Shim, 0.400 mm | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Fuel Piping
| YM***02 | Screw | 1 |
| YM***10 | Banjo Fitting | 1 |
| YM***80 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Gasket Set
| YM***80 | Packing | 1 |
| YM***10 | O-Ring | 1 |
| YM***40 | O-Ring,Drain Plug | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Gear Housing
| YM***02 | Bolt Plated | 7 |
| YM***10 | O-Ring | 1 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Generator
| YM***20 | Timer,Solenoid | 1 |
| YM***40 | Distance Piece | 1 |
| YM***40 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Governor
| YM***00 | Gasket | 1 |
| YM***40 | Screw | 2 |
| YM***00 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Lubricating Oil System (1/2)
| YM***02 | Bolt Plated | 4 |
| YM***00 | Oil Filter Ass'Y | 1 |
| YM***00 | Gauge, Oil Level | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Lubricating Oil System (2/2)
| YM***81 | Retainer | 1 |
| YM***50 | Oil Pressure Transmitter | 1 |
| YM***00 | Retainer | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Starter Motor
| YM***20 | Shift Lever Ass'Y | 1 |
| YM***10 | Housing | 1 |
| YM***60 | Cover, Rear | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine : Turbocharger
| YM***02 | Nut | 4 |
| YM***22 | Stud | 4 |
| YM***90 | Packing | 1 |
Engine Related Parts And Electrical System
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Air Cleaner And Mounting
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Battery
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Electrical System (Column And Service Line)
| 01***20 | Bolt,(Without Maintenance Monitor) | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 3 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Line)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Electrical System (Fuse And Line)
| 01***20 | Screw | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 21***80 | Blinker | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Electrical System (Light And Service Line) (1/2)
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Electrical System (Light And Service Line) (2/2)
| 01***08 | Washer,(For Fixed Type Ripper) | 4 |
| 21***10 | Directional Light, Assembly | 2 |
| 21***30 | Bulb (Italy) | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Electrical System (Undercarriage Line)
| 22***30 | Hose-Clamp | 18 |
| 22***90 | Wiring Harness Undercarriage Line | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 16 |
| 01***40 | Bolt | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 16 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 21***81 | Cock | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 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 : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Left Dashboard
| 21***30 | Screw | 5 |
| 21***30 | Screw | 3 |
| 21***10 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Muffler And Piping
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Power Take Off
| 01***35 | Screw | 8 |
| 01***40 | Bolt,See Fig. K4010-64a0 | 12 |
| 21***80 | Washer,Spring | 12 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Radiator
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***60 | Bolt, Tube To Oil Cooler | 2 |
| 01***40 | Screw | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Engine Related Parts And Electrical System : Right Dashboard
| 20***30 | Starting Switch,Starting | 1 |
| 21***60 | Switch, Switch | 2 |
| 21***10 | Bulb | 9 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-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***25 | Bolt,See Fig. K4010-65a0 | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-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, Wiring Harness Mounting Bracket | 9 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Cabin (6/6)
| 21***10 | Screw | 4 |
| 21***20 | Screw | 4 |
| 21***40 | Screw | 16 |
Komatsu : Pw110r-1(S/N 2260000001-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***40 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Engine Side Cover
| 01***20 | Bolt,(With Auto Emergency Steering) | 13 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***40 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Floor Plate (1/2)
| 01***25 | Bolt,Without Revolution Sensor | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***10 | Bolt (Itl) | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Floor Plate (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 8 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Heating System (1/2)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Heating System (2/2)
| 21***60 | Hose-Clamp | 1 |
| 21***60 | Hose-Clamp | 5 |
| 21***10 | Air Intake | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : L.H. And R.H. View Mirror
| 01***20 | Screw | 4 |
| 01***25 | Screw | 2 |
| 21***20 | Spring Washer | 6 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Operator'S Cab (Equipment)
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
| 21***20 | Screw | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Operator'S Seat
| 01***14 | Screw | 4 |
| 01***80 | Screw | 2 |
| 21***60 | Washer,Spring | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Revolving Frame Under Cover
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 22 |
| 01***32 | Washer,(With Auto Emergency Steering) | 22 |
| 21***60 | Gasket | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Guard And Operator'S Cab : Sound-Proofing
| 21***30 | Screw | 4 |
| 21***20 | Rabbet | 29 |
| 21***30 | Sheet | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Mark Plate : Equipment
| 01***16 | Bolt (With Air Heater & Conditioner) | 0 |
| 21***80 | Washer | 0 |
| 21***20 | Pin, Cotter | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Mark Plate : Equipment (Tbg Version) (1/2)
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
| 21***80 | Support | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Mark Plate : Equipment (Tbg Version) (2/2)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***20 | Screw | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Mark Plate : Mark Plate
| 21***70 | Reflex Reflector, Lateral, R.H | 1 |
| 21***80 | Reflex Reflector, Front, Upper | 1 |
| 21***90 | Reflex Reflector, Front, Lower | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Mark Plate : Tools
| 21***70 | Wrench | 1 |
| 21***90 | Box Wrench (32 mm) | 1 |
| 21***10 | Lever | 1 |
Swing Circle And Final Drive
Komatsu : Pw110r-1(S/N 2260000001-Up) : Swing Circle And Final Drive : Swing Circle
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***10 | Bolt (Op) | 40 |
| 01***30 | Bolt | 40 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Swing Circle And Final Drive : Swing Machinery (1/2)
| 22***40 | Safety Valve | 2 |
| 22***80 | Centering Ring | 1 |
| 22***00 | Swing Machinery, Assembly | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Swing Circle And Final Drive : Swing Machinery (2/2)
| 22***10 | Shaft | 1 |
| 22***20 | Spacer | 1 |
| 22***30 | Ring | 1 |
Under Carriage
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Axles Fixing
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt | 4 |
| 01***30 | Screw | 6 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Front Axle (1/6)
| 21***10 | O-Ring | 3 |
| 21***90 | Plug | 1 |
| 21***91 | Plug | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Front Axle (2/6)
| 21***80 | Bearing | 2 |
| 21***40 | Protection | 1 |
| 21***50 | Gasket Seal | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Front Axle (3/6)
| 21***40 | Bearing | 1 |
| 21***80 | Ring, Snap | 1 |
| 21***60 | Nut | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Front Axle (4/6)
| 21***10 | O-Ring | 2 |
| 21***20 | Steering Coloumn | 16 |
| 21***50 | Nut | 16 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Front Axle (5/6)
| 21***90 | Screw | 2 |
| 22***20 | Brake Disk, Intermediate | 8 |
| 22***30 | Check Bolt | 6 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Front Axle (6/6)
| 22***20 | Screw | 4 |
| 22***41 | Push-Rod | 2 |
| 22***70 | Cylinder | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Brake Line) (1/3)
| 01***25 | Screw | 1 |
| 21***20 | Pressure Switch | 1 |
| 21***70 | Pressure Switch | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Brake Line) (2/3)
| 01***10 | Screw | 2 |
| 21***70 | Union | 2 |
| 21***20 | Union | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Brake Line) (3/3)
| 01***30 | Bolt,Stopper | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 21***70 | Union | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Drain Line)
| 21***30 | Union | 1 |
| 21***90 | Union | 1 |
| 21***70 | Elbow | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Parking Brake Line)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 21***80 | Union | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Steering Line) (1/2)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,Stopper | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Steering Line) (2/2)
| 01***30 | Bolt,Stopper | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 21***60 | Clamp | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Transmission Line)
| 21***80 | Union | 2 |
| 21***90 | Union | 2 |
| 21***20 | Elbow | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping (Travel Motor Line) (Lower)
| 01***35 | Screw | 4 |
| 01***40 | Bolt,(Tm8072-123) | 2 |
| 01***10 | Screw | 6 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Hydraulic Piping Suspension Lock Cylinder Line
| 01***20 | Bolt,(Without Maintenance Monitor) | 8 |
| 01***40 | Bolt,(With Center Guard) | 8 |
| 01***30 | Bolt,Stopper | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Propeller Shaft
| 22***00 | Drive Shaft, Assembly | 1 |
| 22***10 | Kit, Propeller Shaft Mounting | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (1/8)
| 21***70 | Protection | 1 |
| 21***80 | Switch | 1 |
| 21***90 | Washer | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (2/8)
| 21***80 | Slide Block | 2 |
| 21***30 | Bearing | 4 |
| 22***10 | Outlet Shaft | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (3/8)
| 21***10 | O-Ring | 3 |
| 21***90 | Plug | 1 |
| 21***91 | Plug | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (4/8)
| 21***40 | Bearing | 1 |
| 21***80 | Ring, Snap | 1 |
| 21***80 | Bearing | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (5/8)
| 21***40 | Bearing | 1 |
| 21***80 | Ring, Snap | 1 |
| 21***60 | Nut | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (6/8)
| 21***10 | O-Ring | 2 |
| 21***20 | Steering Coloumn | 16 |
| 21***50 | Nut | 16 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (7/8)
| 21***60 | Nut | 2 |
| 21***90 | Pushrod | 4 |
| 21***90 | Screw | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Rear Axle (8/8)
| 22***20 | Screw | 4 |
| 22***40 | Push-Rod | 2 |
| 22***41 | Push-Rod | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Track Frame
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Wheels
| 21***60 | Tyre (18-19.5 18pr) | 4 |
| 21***70 | Cover | 4 |
| 21***80 | Valve | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Under Carriage : Wheels (Optional)
| 21***50 | Valve | 8 |
| 21***60 | Extension Valve | 4 |
| 21***70 | Ring | 4 |
Work Equipment
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : 1st Boom
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
| 21***20 | Bushing | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : 2nd Boom
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
| 01***10 | Bolt,(Noise Suppression Spec.) | 2 |
| 01***40 | Screw | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : 2nd Boom Cylinder, L.H.
| 01***25 | Screw | 8 |
| 21***10 | Screw | 6 |
| 21***80 | Nut | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : 2nd Boom Cylinder, R.H.
| 01***25 | Screw | 8 |
| 21***10 | Screw | 6 |
| 21***80 | Nut | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Arm Cylinder
| 01***25 | Screw | 8 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 1 |
| 21***10 | Screw | 6 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Arm, L=1850 Mm
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 20***40 | Spacer? 1.0mm | 4 |
| 21***10 | Bushing | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Arm, L=2000 Mm
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 20***40 | Spacer? 1.0mm | 4 |
| 21***10 | Bushing | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Arm, L=2300 Mm
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 20***40 | Spacer? 1.0mm | 4 |
| 21***10 | Bushing | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Boom
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***40 | Screw | 1 |
| 20***40 | Spacer? 1.0mm | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Boom Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 12 |
| 21***70 | O-Ring | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Boom Swing Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 12 |
| 21***40 | Bushing | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Bucket
| 22***10 | Bucket, L=300 mm | 1 |
| 22***20 | Bucket, L=400 mm | 1 |
| 22***30 | Bucket, L=500 mm | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Bucket Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 12 |
| 21***40 | Bushing | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Bucket Link
| 20***40 | Spacer? 1.0mm | 10 |
| 21***20 | Bushing | 2 |
| 21***10 | Bushing | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Front Blade
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 2 |
| 20***40 | Spacer? 1.0mm | 8 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Front Outrigger
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***90 | Bolt | 9 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Hydraulic Piping (Attachment Line)
| 21***10 | Union | 2 |
| 21***00 | Union | 1 |
| 21***80 | O-Ring | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (Boom Side)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***45 | Bolt, Bracket Mounting | 1 |
| 21***90 | O-Ring | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Hydraulic Piping (Attachment Line) (For 2-Piece Boom) (Boom Side)
| 21***80 | O-Ring | 3 |
| 21***90 | O-Ring | 3 |
| 22***90 | Hose | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Outrigger Or L.H. Blade Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 12 |
| 21***10 | Bushing | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Outrigger Or R.H. Blade Cylinder
| 01***25 | Screw | 8 |
| 21***10 | Screw | 12 |
| 21***10 | Bushing | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Rear Blade
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 2 |
| 20***40 | Spacer? 1.0mm | 8 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Rear Outrigger
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 4 |
| 20***40 | Spacer? 1.0mm | 16 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment : Swing Bracket
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
| 01***40 | Bolt,(With Center Guard) | 4 |
Work Equipment Control System
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Brake Pump
| 21***10 | Kit, Gasket | 1 |
| 21***20 | Pipe, Assembly | 1 |
| 21***30 | Solenoid Valve, Assembly | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Control Valve (1/7)
| 01***30 | Screw | 38 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 38 |
| 57***20 | O-Ring | 19 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Control Valve (2/7)
| 07***20 | O-Ring,Cover? Transfer Case | 9 |
| 07***10 | O-Ring,Plate | 8 |
| 07***12 | O-Ring, Divider Valve Mounting | 3 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Control Valve (3/7)
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Control Valve (4/7)
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Control Valve (6/7)
| 07***07 | O-Ring - (K10) | 2 |
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 1 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 2 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Control Valve (Safety Valve) (For Attachment Control Valve)
| 72***00 | Safety Valve | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (2nd Boom Cylinder Line) : Unit_02_of_02
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (2nd Boom Cylinder Line) : Unit_01_of_02
| 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 | 2 |
Komatsu : Pw110r-1(S/N 2260000001-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 | 5 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Arm Cylinder Line)
| 01***60 | Bolt,(For Japan And Sweden) | 3 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
Komatsu : Pw110r-1(S/N 2260000001-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 | 5 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Arm Cylinder Line) (Safety Valve)
| 01***80 | Bolt,(For Long Lever Control) | 4 |
| 01***30 | Screw | 8 |
| 21***60 | Hose-Clamp | 20 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Boom Cylinder Line)
| 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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Boom Cylinder Line) (Safety Valve)
| 01***25 | Screw | 8 |
| 01***00 | Screw | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Boom Cylinder Line) (With 2-Piece Boom)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
| 21***60 | O-Ring | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line) (For 2-Piece Boom)
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line) (Safety Valve)
| 21***60 | O-Ring | 2 |
| 21***70 | O-Ring | 1 |
| 21***70 | O-Ring | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Cylinder Line) (Safety Valve) (Rotating And C
| 21***60 | O-Ring | 2 |
| 21***70 | O-Ring | 1 |
| 21***70 | O-Ring | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Delivery Line)
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 3 |
| 01***35 | Screw | 4 |
| 01***30 | Screw | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Front And Rear Outrigger) (1/2)
| 01***70 | Screw | 4 |
| 21***60 | Union | 2 |
| 21***70 | O-Ring | 13 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Front Blade With Rear Outrigger) (1/2)
| 01***70 | Screw | 4 |
| 21***60 | Union | 2 |
| 21***40 | Plug | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Front Blade With Rear Outrigger) (2/2)
| 01***30 | Bolt | 2 |
| 01***30 | Bolt,Stopper | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Load Sensing)
| 21***10 | O-Ring | 2 |
| 21***60 | O-Ring | 2 |
| 21***20 | Protection | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Oil Cooler And Return Line)
| 21***60 | Union | 1 |
| 21***40 | Elbow | 1 |
| 21***30 | Elbow | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Outrigger Solenoid Valve Line) (Rear)
| 21***70 | O-Ring | 6 |
| 21***30 | O-Ring | 1 |
| 21***70 | O-Ring | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Overload Sensor Line)
| 01***40 | Screw | 2 |
| 21***00 | Elbow | 2 |
| 21***10 | Union Tee | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Ppc Piping) (1/3)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Screw | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Ppc Piping) (2/3)
| 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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Ppc Piping) (3/3)
| 21***80 | Union | 1 |
| 21***50 | Union | 2 |
| 21***50 | Union | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Rear And Front Outrigger) (2/2)
| 01***30 | Bolt | 2 |
| 01***30 | Bolt,Stopper | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Rear Outrigger)
| 01***30 | Bolt | 2 |
| 01***30 | Bolt,Stopper | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Steering Line) (1/2)
| 01***60 | Bolt,(For Japan And Sweden) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Steering Line) (2/2)
| 01***30 | Bolt,Stopper | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 21***90 | Union | 1 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Swing Motor Line)
| 01***30 | Screw | 8 |
| 01***40 | Bolt,(Tm8072-123) | 12 |
| 21***90 | Union | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping (Travel Motor Line) (Upper)
| 21***20 | O-Ring | 1 |
| 21***80 | O-Ring | 3 |
| 21***30 | O-Ring | 2 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping Blade
| 21***70 | O-Ring | 3 |
| 21***30 | O-Ring | 1 |
| 21***10 | O-Ring ` | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Piping Rear Blade
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (1/9)
| 04***18 | Bolt, Eye | 1 |
| 07***12 | Plug,Magnetic | 1 |
| 70***21 | Pump, Assembly | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (2/9)
| 04***25 | Ring,(W/Emergency Steering) (1m?1d) | 1 |
| 70***60 | Snap Ring | 1 |
| 70***60 | Spacer | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (3/9)
| (****1) | Seat | 1 |
| (****0) | Cylinder Block | 1 |
| (****0) | Piston Sub Ass'Y | 9 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (4/9)
| (****0) | O-Ring | 1 |
| (****0) | O-Ring | 1 |
| (7***1) | Pump, Assembly | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (5/9)
| 07***09 | O-Ring | 2 |
| 70***90 | Pc Valve, Assembly | 1 |
| 70***20 | O-Ring | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (6/9)
| 70***20 | Valve Ass'Y,Ls | 1 |
| 70***10 | O-Ring | 1 |
| 70***80 | Gasket | 3 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (7/9)
| 70***13 | Plug Sub Ass'Y | 1 |
| 70***10 | O-Ring | 1 |
| 70***80 | Gasket | 3 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (8/9)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***65 | Screw | 2 |
| 01***25 | Screw | 3 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Hydraulic Pump (9/9)
| 70***50 | Gear Pump, Assembly | 1 |
| (****2) | Plate,Side | 2 |
| (****1) | O-Ring | 2 |
Komatsu : Pw110r-1(S/N 2260000001-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 : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Ppc Valve (For Travel)
| 01***30 | Bolt,Stopper | 1 |
| 01***18 | Screw | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Ppc Valve (Work Equipment)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***20 | O-Ring,(0202-007) | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Ppc Valve For Blade, Boom Swing, 2-Piece Boom
| 01***25 | Bolt, Seal Cover Mounting | 2 |
| 01***25 | Screw | 2 |
| 70***30 | Ppc Valve, Assembly | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Ppc Valve, L.H.
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***08 | Nut (Op) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Ppc Valve, R.H.
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***08 | Nut (Op) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Servocontrol Feed Unit
| 01***16 | Screw | 2 |
| 01***25 | Screw | 2 |
| 01***40 | Screw | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Swivel Joint
| 21***40 | Screw | 2 |
| 21***30 | O-Ring | 1 |
| 21***20 | Grommet | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Swivel Joint (Mounting Parts)
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Travel Motor (1/2)
| 22***00 | Travel Motor, Assembly | 1 |
| 22***30 | Shim | 1 |
| 22***40 | Spring | 1 |
Komatsu : Pw110r-1(S/N 2260000001-Up) : Work Equipment Control System : Travel Motor (2/2)
| 22***10 | Counter Balance Valve, Assembly | 1 |
| 22***20 | Kit, Gasket | 1 |
| 22***50 | Screw | 1 |
PW110R-1(S/N 2260000001-Up) serial number reference
The PIN/serial plate on a PW110R-1 wheeled excavator is riveted to the machine frame or upper structure - check the cab entry step, boom foot area, and main frame rail, since exact placement can vary by production run. Record the complete model designation together with the full digit string as stamped; there is no separate alpha prefix on this model. The leading digits identify the production/running-change block covered by this shop-manual volume, not a plant or region code.
| Prefix | Identifies | Notes |
|---|---|---|
| 2260000001 | PW110R-1 wheeled (tire-mounted) hydraulic excavator, opening production block | Confirmed as the opening serial block for the PW110R-1 wheeled midi excavator built for the European market - this is the starting number the factory shop-manual volume for this range covers, and it lines up with the model's earliest documented production run. No long-undercarriage or short/standard-frame split applies; this is a wheel/tire-mounted machine, not tracked. Engine is a Komatsu/Yanmar-built S4D106-family turbocharged diesel, with parts documentation for this early build window citing the S4D106-1FB designation specifically; other S4D106 sub-suffixes and an SAA4D106 designation with different power figures also turn up in parts cross-references for this model line, so confirm the exact engine suffix from the engine dataplate rather than assuming it matches other serial blocks. |
Frequently asked questions
What engine does the Komatsu PW110R-1 (S/N 2260000001-Up) use?
This serial range uses Komatsu's own S4D106E-1FB (4D106-1FB) diesel: a 4-cylinder, turbocharged engine displacing 4.412 L, rated at roughly 71.8 kW (96 hp) gross and about 69.3 kW net at rated speed. It is mechanically governed with no electronic engine control, so it has no digital fault codes to read.
What is the operating weight of the Komatsu PW110R-1?
Operating weight runs roughly 9.7 to 11.2 tonnes depending on configuration. Monoboom units come in lighter, around 10.5 t, than two-piece offset-boom units near 11 t, and tire choice, counterweight, and stabilizer or blade fitment shift it further. Check the machine's own nameplate for the exact figure on a given unit.
What replaced the Komatsu PW110R-1?
Komatsu's wheeled midi-excavator line moved on to the PW118MR series after this generation ended production, first the PW118MR-8, then the PW118MR-11. Those later machines use electronically controlled, emissions-compliant engines, a step up in complexity from the mechanically governed engine in the PW110R-1.
What PW110R-1(S/N 2260000001-Up) owners discuss
What engine does the PW110R-1 in this serial range run, and are there any known quirks?
It carries Komatsu's own S4D106E-1FB (4D106-1FB) turbocharged diesel, built to meet Stage II era emission limits. Gross output is about 71.8 kW (96 hp), with net output around 69.3 kW (93 hp); the spread between figures comes from gross-versus-net rating conventions, not a different engine. Being a compact turbo diesel in a small chassis, cooling margin is tight. Keep the radiator core clean, a partially blocked core shows up first as rising coolant temp under load, not at idle.
Owners mention the machine has almost no travel power even though it's in gear. What causes that?
This shows up on the hydrostatic-drive wheeled platform as forward/reverse engaging normally but very little pulling force reaching the wheels. Reported causes include trapped air in the travel circuit after a hose, filter, or pump service; worn travel motor internals bleeding off drive pressure; and slipping wet clutch packs inside the travel gearbox from age or contaminated gear oil. Pressure-check the travel circuit against the shop manual spec before condemning the motor, since low fluid or a clogged suction strainer produces the same symptom. Have your dealer verify travel-circuit pressures before authorizing a motor or gearbox teardown.
What's the deal with overheating complaints on this machine?
A coolant temperature that only climbs under load, with the engine block and radiator reading the same, usually points to a clogged radiator core (internal scale or external mud and chaff packed in the fins) rather than a failed water pump. Confirm the thermostat is actually installed, machines that were quick-fixed by pulling a stuck-open thermostat run cool at idle and cook under load, masking the real problem. Chronic overheating on this engine family has been tied to head gasket failure after repeated hot-running events, so a compression or coolant cross-contamination check is worth doing on any unit with a temperature complaint in its history.
Since this is a wheeled excavator, what wear patterns replace typical undercarriage checks?
Look at tyre wear side to side. Uneven wear usually flags axle king-pin or bushing wear rather than an alignment issue, since the front axle oscillates on a pivot rather than steering like a road vehicle. Check the oscillation pivot bushings and the transport/lift lock pin for play. Outrigger and blade cylinder seals are a common seep point after years working in dirt and grit, cycle them fully and check for a wet stripe on the rod during the return stroke.
Any recurring swing or hydraulic pump complaints?
A soft or hesitant swing start, especially uphill or with a full bucket, more often traces to swing motor internal wear or a worn swing-brake valve than to the main pump itself. Check swing bearing play separately from the hydraulics: with the machine parked and engine off, grab the upper structure and rock it against the lower frame. More than slight movement means bearing wear, not a hydraulic fault, and on a wheeled excavator that bearing is a structural safety item, not just a performance one. Have your dealer verify swing-bearing bolt torque and play before returning the machine to full duty.
What electrical or sensor problems come up most on this generation of machine?
Most complaints trace back to a short list: corroded or loose ground straps between frame and engine block, a main wiring harness deteriorating where it flexes near the cab floor, and a drifting coolant or intake-air temperature sensor that throws a false high-temp warning or pulls engine power back in protection mode. Before chasing a sensor code, clean and re-torque the main ground points first, a surprising share of random shutdown and dead-gauge complaints resolve there.
What should I check before buying a used PW110R-1 in this serial range?
Confirm hour meter history against service records, since digital displays can be swapped. Cycle every function, boom, stick, bucket, swing, travel in both directions and gears, outriggers or blade, and the optional two-piece boom if fitted, watching for delayed or spongy response. Check axle oscillation lock play, king pins, tyre wear pattern, and stabilizer or blade cylinder seals for seepage. Run the engine to full operating temperature and watch the gauge under load, not just at idle, given this platform's known sensitivity to a partially clogged radiator core. Pull a hydraulic oil sample if history is unknown, running changes across this serial block mean pump and relief-valve wear varies more than the data plate numbers suggest. Have your dealer verify hydraulic pump flow and pressure, and swing-bearing condition, before finalizing a purchase.
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 PW110R-1(S/N 2260000001-Up). Related factory variants of the same model family:
PW110R-1(S/N 2260000282-Up)PW110R-1(S/N 2260010001-Up)
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