Komatsuwheel loadersmall ( - wa120 / sk*)
Komatsu WA30-2(S/N 3001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA30-2(S/N 3001-UP) is a compact articulated wheel loader built for tight yards, nurseries, and light construction sites where a full-size loader won't fit. It runs a Yanmar-built 3D84-1C, a mechanically governed 3-cylinder indirect-injection diesel of about 1.4 L, rated near 20.6 kW (28 PS) at 2,600 rpm, with glow-plug assisted cold starting and no electronic engine controls. Operating weight runs roughly 2,300-2,380 kg (5,070-5,250 lb) depending on bucket and cab/canopy choice, with bucket capacity from about 0.29 to 0.34 m³ (0.38-0.44 cu yd) across the general-purpose bucket options offered. Komatsu built this generation from about 1987 to 1994, following the original WA30-1(S/N 1001-UP) and ahead of the WA30-3(S/N 9001-UP). Beyond the standard bucket, Komatsu also offered a utility fork with grapple as an alternate factory work tool, pinned directly to the lift arm and bellcrank since this size class carries no quick-coupler system.
The step from WA30-1 to WA30-2 refined the same basic formula rather than reinventing it: articulated steering, a single lift arm and bellcrank with one bucket cylinder, and wet sealed disc brakes carried through while Komatsu tuned the engine and hydraulics. Later WA30-3 and WA30-5 generations, including the WA30-5NA built for North America, moved the platform further, each a distinct build with its own engine and controls, so parts and specs don't cross over cleanly with this one. In today's used market the WA30-2 draws buyers who want a simple, computer-free loader a home shop can service without a laptop, but its age means glow plug systems, articulation pins and bushings, and cylinder seals are wear items to budget for. Parts availability is a real friction point since this generation was never widely stocked outside Japan and the factory network, so plan on longer lead times through a dealer or specialist rather than over-the-counter parts.
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 WA30-2(S/N 3001-UP) specifications
Engine
| Engine model | 3D84-1C, 3-cylinder inline diesel, naturally aspirated (Yanmar-built block used across this Komatsu compact-loader generation) |
| Displacement | 1.4 L (84 x 85 mm bore x stroke) |
| Gross power | 20.6 kW (28 PS) at 2,600 rpm |
| Emissions tier | Pre-regulation design for this production era; no formal emissions tier certification applies |
Weights
| Operating weight | approximately 2,300-2,380 kg (5,070-5,247 lb); varies by configuration (bucket width, canopy vs cab) |
Dimensions
| Transport length | 3.575 m (11.73 ft) |
| Transport width | 1.50-1.57 m (4.92-5.15 ft), varies by tire and mirror configuration |
| Transport height | 1.89 m (6.20 ft) to hood; 2.42 m (7.94 ft) with ROPS canopy |
| Wheelbase | 1.65 m (5.41 ft) |
| Tread (wheel gauge) | 1.18 m (3.87 ft) |
| Turning radius, outside | 3.63 m (11.91 ft) |
Performance
| Travel speed | 15.0 km/h (9.3 mph), same rating forward and reverse |
| Bucket capacity | 0.29-0.34 cu m (0.38-0.44 cu yd), varies by bucket width option |
| Maximum dump/discharge height | approximately 2.0 m (6.6 ft) |
Service capacities (summary)
| Fuel tank | 30 L (7.9 US gal) |
| Engine oil / hydraulic system / cooling system | not documented for this exact serial range - verify with your dealer or the factory shop manual |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA30-2(S/N 3001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Not documented for this exact serial range — verify exact refill volume against the OMM before servicing. | Komatsu-brand diesel engine oil (Komatsu EO family) matched to the machine's 3-cylinder diesel engine service class. Select viscosity by ambient temperature per the OMM chart: lighter grade (10W or 10W-30) for cold starts, heavier grade (SAE 30 or 15W-40) for temperate/warm operation. |
| Cooling system | Not documented for this exact serial range — confirm with dealer/OMM. | Ethylene-glycol antifreeze/corrosion-inhibitor coolant (Komatsu Supercoolant or equivalent), mixed to suit the expected ambient low temperature. |
| Fuel tank | Approx. 30 L (7.9 US gal) per catalog specification listings — confirm against the OMM or tank data plate. | No. 2-D diesel fuel (or regional low-sulfur equivalent) per Komatsu's standard fuel spec for this engine class. |
| Transmission / transaxle | Not documented for this exact serial range. This machine uses a combined drivetrain/transaxle layout — confirm exact refill volume with dealer/OMM. | Komatsu powertrain oil (Komatsu TO family) or equivalent, viscosity selected per the OMM's temperature chart. |
| Front axle / final drive | Not documented for this exact serial range — confirm with dealer/OMM. | Komatsu axle oil (Komatsu AXO family), typically an SAE 80W-90 gear oil meeting GL-4/GL-5, or equivalent. |
| Rear axle / final drive | Not documented for this exact serial range — confirm with dealer/OMM. | Komatsu axle oil (Komatsu AXO family), typically an SAE 80W-90 gear oil meeting GL-4/GL-5, or equivalent. Same fluid family as the front axle unless the OMM specifies otherwise. |
| Hydraulic system (tank and circuit) | Not documented for this exact serial range — confirm with dealer/OMM. | Komatsu hydraulic oil (Komatsu HO family), ISO viscosity grade 32 or 46 depending on climate, or an equivalent anti-wear hydraulic fluid. |
| Grease (chassis lubrication points) | Spec only, no fill volume. Applied at the articulation joint, boom/bucket pivot pins, and steering linkage per the OMM lubrication chart. | NLGI No. 2 lithium-based multipurpose grease (Komatsu G2 series or equivalent). |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WA30-2(S/N 3001-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 WA30-2(S/N 3001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
No ECM means fluid condition is the early-warning system on this loader. Sample engine oil from the 3-cylinder 3D84-1C to catch cylinder or injection-pump wear before it becomes a rebuild. Watch the transmission/transaxle oil for metal or discoloration signaling clutch wear, and keep the sealed wet-disc brake housings topped up — neglected brake oil lets discs run dry and glaze into a soft pedal. Use Komatsu EO, TO, AXO, and HO fluid families as specified, and test coolant concentration on schedule to head off corrosion in this small cooling system.
Corrective & Common Repairs
Most repeat repairs trace to known wear points: articulation center-pin and bushing wear showing up as steering play or a knock in the joint, and hard cold starts from weak glow plugs or a failing relay rather than the injection pump. Sluggish lift, tilt, or steering right after startup is usually just cold hydraulic oil — if it doesn't clear once warm, suspect a restricted filter or a pump/valve fault. Machines fitted with the factory grapple work tool carry a second hydraulic circuit, a common extra leak point.
Overhaul & Rebuild Points
At higher hours, plan around articulation center-pin and bushing kits once joint play grows, wet disc brake pack replacement if pedal feel softens, and injection pump/governor rebuild or bench-test if idle hunts or power fades. The single bucket (tilt) cylinder and lift arm/bellcrank pivots are the next candidates for reseal or bushing replacement. Engine top-end work becomes worth evaluating given the age of surviving units. This platform is long out of production, so budget extra lead time sourcing rebuild kits through a dealer or specialist.
Seasonal & Environment Servicing
Cold weather stresses the glow plug circuit and battery most, since the mechanically governed 3D84-1C has no electronic cold-start assist — test both before winter. Expect soft lift, tilt, and steering response on a cold start; it clears within minutes as hydraulic oil warms and is normal, not a pump fault. In dusty or muddy conditions, clean grease fittings before greasing the articulation joint and linkage pins, since packed grit wears bushings egg-shaped faster than the interval assumes.
WA30-2(S/N 3001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM171056-55800 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| YM171051-92760 | Wrench,Fuel Filter? Water Separator | Fuel system service | Check fitment → |
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 20N-98-21290 | Plate? Caution,Fuel Filter | Fuel system service | Check fitment → |
| 09019-08035 | Wrench,Filter (For Add. 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.
WA30-2(S/N 3001-UP) attachments & work tools
Standard general-purpose bucket
Base work tool is a factory general-purpose bucket, pinned to the single lift arm and driven by one bucket (tilt) cylinder. Spec sheets for this compact class put capacity around 0.29-0.34 m3 (about 0.38-0.44 cu yd), varying by bucket width — treat as approximate and verify the exact figure for the bucket fitted.
Utility fork with grapple
Factory parts documentation covering this exact S/N 3001-up range lists a utility fork with grapple as an alternate work tool to the plain bucket, for handling pallets, brush, or loose and bundled material. It mounts on the same pin points as the standard bucket rather than through a separate quick-coupler plate.
Grapple hydraulic piping kit
The grapple clamp arm runs off its own hydraulic piping and a dedicated grapple cylinder, documented as a separate utility grapple piping kit routed from the main control valve. This is an added circuit on top of the base lift/tilt plumbing, not present on a bucket-only machine, so fitting the grapple means extra hoses and a valve section beyond standard.
Coupler and mounting system
Work tools pin directly to the lift arm and bellcrank; there is no quick-hitch/coupler plate on this size of loader. Komatsu's current genuine quick-hitch and coupler lineup for wheel loaders only covers larger tool-carrier models (roughly WA200-class and up), well above this compact machine's size class, consistent with the pin-mount arrangement seen in this model's own parts catalog.
Loader linkage and control valve arrangement
A single lift arm with bellcrank and one bucket cylinder forms the standard loader linkage typical of this size class, actuated through the machine's base hydraulic control valve. Adding the grapple work tool brings in a second valve/piping run alongside the base bucket circuit rather than replacing it.
All WA30-2(S/N 3001-UP) assemblies by section
Every catalogued assembly group for the Komatsu WA30-2(S/N 3001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
3d84-1c Engine S/N 01001-Up
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Air Cleaner
| YM***00 | Baffle | 1 |
| YM***10 | Element | 1 |
| YM***60 | Pan,Dust | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Air Intake Manifold
| YM***32 | Manifold,Air Intake | 1 |
| YM***90 | Clamp | 1 |
| YM***31 | Manifold | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Alternator
| YM***63 | Regulator Ass'Y | 1 |
| YM***BM | Bearing,Ball | 1 |
| YM***62 | Brush | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Alternator And Mounting
| YM***02 | Nut | 1 |
| YM***02 | Bolt | 1 |
| YM***00 | Spacer | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Camshaft And Tappet
| YM***00 | Gear | 1 |
| YM***00 | Key | 1 |
| YM***20 | Nut | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Crankshaft
| YM***00 | Crankshaft Ass'Y | 1 |
| YM***00 | Metal Ass'Y,No.2 (Std) | 1 |
| YM***60 | Parallel Pin | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Cylinder Block
| YM***60 | Cylinder Block A | 1 |
| YM***60 | Parallel Pin | 3 |
| YM***20 | Plug,Drain(Without Oil Cooler Type) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Cylinder Head
| YM***50 | Nut | 6 |
| YM***02 | Nut | 8 |
| YM***00 | Plug | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Cylinder Head Cover(#01001-05589)
| YM***20 | Retainer | 1 |
| YM***50 | Clip | 1 |
| YM***40 | Element | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Cylinder Head Cover(#05590-05809)
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***00 | Plug | 1 |
| YM***40 | Hose | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Cylinder Head Cover(#05810-)
| YM***30 | Spacer | 1 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***52 | Bolt Plated | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Exhaust Manifold
| YM***22 | Screw | 4 |
| YM***02 | Nut | 4 |
| YM***22 | Stud | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Flywheel And Flywheel Housing
| YM***00 | Gear | 1 |
| YM***90 | Flywheel Ass'Y | 1 |
| YM***52 | Bolt Plated | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Front Cover
| YM***31 | Packing | 1 |
| YM***52 | Bolt | 7 |
| YM***24 | Bearing,Ball | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Fuel Feed Pump
| YM***82 | Bolt | 2 |
| YM***20 | Feed Pump Ass'Y | 1 |
| YM***50 | Packing | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Fuel Filter
| YM***00 | Gasket | 2 |
| YM***50 | Plug,Air | 2 |
| YM***20 | Spring | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Fuel Injection Pump
| YM***70 | Retainer, Spring | 3 |
| YM***20 | Spring | 3 |
| YM***40 | Adjusting Plate A | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Fuel Injection Pump And Piping
| YM***80 | Screw | 1 |
| YM***20 | Pipe,Injection? No.2 | 1 |
| YM***90 | Washer,Seal | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Fuel Nozzle And Spill Hose
| YM***10 | Chamber,Rear | 3 |
| YM***10 | Spindle | 1 |
| YM***00 | Hose | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Gasket Kit
| YM***90 | Gasket Kit | 1 |
| YM***30 | Gasket (Kit) | 1 |
| YM***20 | O-Ring,Cylinder Head Cover Bolt | 3 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Governor Control
| YM***80 | Lever Ass'Y | 1 |
| YM***01 | Governor Weight A | 1 |
| YM***10 | Spring | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Lubricating Oil Filter
| YM***10 | O-Ring (Kit) | 1 |
| YM***20 | Plate? Caution | 1 |
| YM***50 | Nut | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Lubricating Oil Pump And Piping
| YM***50 | Pin | 1 |
| YM***21 | Packing | 1 |
| YM***10 | Gasket | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Muffler
| YM***02 | Screw | 4 |
| YM***02 | Nut | 4 |
| YM***10 | Gasket,Exhaust Connector | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Oil Pan
| YM***50 | Guide | 1 |
| YM***02 | Bolt Plated | 1 |
| YM***52 | Screw | 17 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Piston And Connecting Rod
| YM***00 | Ring,Snap | 6 |
| YM***90 | Piston Ass'Y | 3 |
| YM***01 | Bolt | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Power Take Off
| YM***00 | Gear Ass'Y | 1 |
| YM***22 | Stud | 4 |
| YM***82 | Gasket,(Not Shown) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Rocker Arm
| YM***70 | Support | 2 |
| YM***02 | Nut,Rock | 2 |
| YM***60 | Rocker Arm Ass'Y,Exhaust | 3 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Safety Relay And Thermostart Timer
| YM***20 | Timer,Thermostart | 1 |
| YM***00 | Relay,Safety | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Starting Motor
| YM***02 | Bearing | 1 |
| YM***05 | Lever Ass'Y | 1 |
| YM***11 | Cover Ass'Y | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Starting Motor And Mounting
| YM***02 | Nut | 2 |
| YM***02 | Nut,Rock | 1 |
| YM***50 | O-Ring | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Thermostart
| YM***80 | Clamp | 4 |
| YM***10 | Bracket | 1 |
| YM***20 | Clamp | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Tool
| YM***60 | Wrench,Fuel Filter? Water Separator | 1 |
| YM***00 | Tool Ass'Y,(Pc38uu) | 1 |
| YM***50 | Screw Driver | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : 3d84-1c Engine S/N 01001-Up : Water Pump And Cooling Fan
| YM***02 | Screw | 4 |
| YM***52 | Bolt | 1 |
| YM***60 | Flange | 1 |
Drive Shaft? Differential And Wheels
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Axle Housing
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 16 |
| 01***40 | Bolt,(With Service Valve R.H.) | 32 |
| 01***14 | Nut | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Brake
| 01***70 | Bolt, Spacer | 3 |
| 01***15 | Bolt | 3 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Brake Pedal
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***60 | Bolt (M10-1.50x60) | 3 |
| 01***50 | Bolt,(For Strengthened Cover) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Drive Shaft
| 01***40 | Bolt | 16 |
| 01***15 | Bolt | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Front Differential
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***70 | Bolt, Spacer | 12 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 19 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Master Cylinder
| 36***12 | Repair Kit | 1 |
| 36***11 | Master Cylinder A | 1 |
| 36***10 | Rod | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Parking Brake(#3001-4101)
| 01***16 | Bolt (Welded) | 2 |
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Parking Brake(#4102-)
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Rear Differential
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***70 | Bolt, Spacer | 12 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 19 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Wheel(#3001-5440)
| 36***10 | Wheel Ass'Y,L.H | 2 |
| 36***20 | Wheel Ass'Y,R.H | 2 |
| 36***10 | Tire Ass'Y | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Drive Shaft? Differential And Wheels : Wheel(#5441-)
| 36***90 | Wheel Ass'Y,L.H | 2 |
| 36***00 | Wheel Ass'Y,R.H | 2 |
| 36***40 | Cap | 1 |
Engine Related Parts And Electrical System
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Battery
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***18 | Bolt | 1 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 5 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Elecrical System? Front
| 01***20 | Bolt,(With Auto Emergency Steering) | 5 |
| 01***04 | Nut,(For Air Conditioner Less) | 4 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Electrical System? Rear
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Electrical System? Rear (1/2) (With Operator Cab)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Electrical System? Rear (2/2) (With Operator Cab)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Electrical System? Rear (With Operator Cab)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Engine And Transmission Mounting Parts
| 01***35 | Bolt,(For Position Fixing) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Fuel Control Linkage And Engine Stop Lever
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 01***30 | Screw | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***70 | Bolt (Op) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Instrument Panel
| 01***10 | Screw,(For Lighter) | 9 |
| 01***10 | Screw,R.H. Door | 4 |
| 01***05 | Washer,(Without Window Washer) | 9 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Instrument Panel (With Operator Cab)
| 01***10 | Screw,(For Lighter) | 9 |
| 01***10 | Screw,R.H. Door | 4 |
| 01***05 | Washer,(Without Window Washer) | 9 |
Komatsu : Wa30-2(S/N 3001-Up) : Engine Related Parts And Electrical System : Radiator
| 01***20 | Bolt,(Without Maintenance Monitor) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 7 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
Frame And Guard
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Air Conditioner Piping
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***10 | Screw,(For Wiper Switch Earth) | 2 |
| 01***12 | Screw,(With Articulate Indicator) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Beacon Lamp
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 08***08 | Grommet,(Without Beacon Lamp) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Cab Mount
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***10 | Nut,(Without Air Conditioner) | 12 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Counter Weight
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 4 |
| 01***90 | Bolt | 4 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Floor Frame And Dashboard
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Floor Frame And Dashboard (For Rops Canopy)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 3 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Floor Frame And Dashboard (With Cab)
| 01***16 | Bolt (With Air Heater & Conditioner) | 5 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 7 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Floor Frame And Dashboard (With Operator Cab)
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 7 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Frame(#3001-4101)
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***35 | Bolt,(For Pedal Steering) | 4 |
| 01***50 | Capscrew | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Frame(#4102-)
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***35 | Bolt,(For Pedal Steering) | 4 |
| 01***50 | Capscrew | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Front Cover
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Front Cover (With Operator Cab)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Operator'S Seat(#3001-3891)
| 01***15 | Nut | 8 |
| 01***10 | Nut,(Without Air Conditioner) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Operator'S Seat(#3892-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***10 | Nut,(Without Air Conditioner) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rear Cover (1/2)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 10 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rear Cover (2/2)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rear Cover (With Air Conditioner)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 9 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rear Cover (With Operator Cab)
| 01***16 | Bolt (With Air Heater & Conditioner) | 12 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rops Cab (Frame And Guard) (1/5) (Except Japan)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***10 | Screw,(For Lighter) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rops Cab (Left And Right Door) (3/5) (Except Japan)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***12 | Screw,(Additional Sun Visor) | 14 |
| 01***16 | Screw, Mount Parking Lights | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rops Cab (Room Mirror And Sunvisor) (2/5) (Except Japan)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Screw - Mounting | 4 |
| 01***03 | Nut,(With Joy Stick Steering) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rops Cab Lamp (5/5) (Except Japan)
| 01***16 | Bolt (Op) | 7 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 7 |
| 08***60 | Bulb? 60w | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rops Cab Mounting And Floor Mat
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 10 |
| 01***40 | Bolt,(With Center Guard) | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Frame And Guard : Rops Cab Rear Door And Washer Tank (4/5) (Except Japan)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 20 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Mark Plate? Tool And Kit
Komatsu : Wa30-2(S/N 3001-Up) : Mark Plate? Tool And Kit : Marks And Plates
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***35 | Plate? Name,(Limited Supply) (English) | 1 |
| 09***61 | Plate? Instruction,(Japanese-English) (Not Shown) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Mark Plate? Tool And Kit : Spare Parts Kit (Except Japan)
| 07***00 | O-Ring (K8) | 1 |
| 07***20 | O-Ring (K3) | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Mark Plate? Tool And Kit : Tool (Except Japan)
| 07***95 | Tube,Brake Oil | 1 |
| 07***60 | Tube,Rear Axle Oil | 1 |
| 07***50 | Pump, (Bellows Type) | 1 |
Special Application Parts
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Bucket Cylinder
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 1 |
| 07***45 | O-Ring,(F4350-60a0 -9 ) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Canopy(#3001-5801)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Canopy(#5802-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Hydraulic Oil Piping
| 01***45 | Bolt,(For Suction? Reversible Fan) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***11 | Nut,(With Under Mirror) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Rops Canopy (Except Japan)
| 01***40 | Bolt,(With Center Guard) | 22 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 22 |
| 36***11 | Guard | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Utility Fork? With Grapple(#3001-4101) : Unit_01_of_02
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***90 | Bolt, Fan Mounting | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Utility Fork? With Grapple(#3001-4101) : Unit_02_of_02
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***90 | Bolt, Fan Mounting | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Utility Grapple Piping (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Special Application Parts : Utility Grapple Piping (2/2)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 07***06 | Hose,(D21s) (Tbg Spec.) | 2 |
Steering And Control System
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Cylinder(#3001-4101)
| 01***09 | Nut,(With Body Positioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Cylinder(#4102-)
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 1 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Handle
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***10 | Nut,(Fig.F2820-01a3-12) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Oil Piping (1/2)(#3001-3552)
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Oil Piping (1/2)(#3553-)
| 01***30 | Bolt,(For France Noise Suppression) | 6 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***35 | Bolt,(For Position Fixing) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Oil Piping (2/2)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***40 | Bolt | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Pump (Except Japan)(#3001-4101)
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Pump (Except Japan)(#4102-)
| 01***55 | Screw | 4 |
| 01***30 | Washer,Spring | 4 |
| 04***20 | Pin,Dowel (Welded) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Relief Valve(#3001-3552)
| 07***11 | O-Ring (Kit) | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
| 70***10 | O-Ring (Kit) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Valve(#3001-3552)
| 20***00 | Steering Valve Ass'Y | 1 |
| JK***10 | Gasket (Kit) | 14 |
| JK***02 | Plate | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Valve(#3553-4101)
| 36***10 | Steering Valve Ass'Y | 1 |
| JK***10 | Gasket (Kit) | 14 |
| JK***02 | Ball,Steel | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Valve(#4102-7845)
| 36***11 | Steering Valve Ass'Y | 1 |
| JK***07 | Housing | 1 |
| JK***10 | Gasket (Kit) | 14 |
Komatsu : Wa30-2(S/N 3001-Up) : Steering And Control System : Steering Valve(#7846-)
| 36***11 | Steering Valve Ass'Y | 1 |
| JK***28 | O-Ring (Kit) | 4 |
| JK***02 | Ball,Steel | 1 |
Transmission
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : 1st And 2nd Housing
| 01***25 | Bolt,(Without Auto Priming System) | 4 |
| 01***40 | Bolt,(For Position Fixing) | 5 |
| 01***45 | Bolt,(S6d155-4b) | 10 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Forward And 3rd Housing
| 04***12 | Pin, Spring | 6 |
| 07***55 | Ring,Seal | 2 |
| 11***90 | Pin,(D=10.0? L= 35.0) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Inching Pedal
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Modulation Valve
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 12 |
| 01***35 | Bolt,(Without Auto Priming System) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Reverse Housing
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Selector And Inching Valve
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 5 |
| 01***80 | Bolt,(See Fig.0131) | 3 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Transfer
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 1 |
| 01***60 | Screw | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Transmission Case
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Transmission Control Lever
| 01***30 | Bolt,(Cold Terrain Spec.) | 5 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***05 | Nut,L.H. Thread (D31s) | 3 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Transmission Lock Lever
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Transmission Oil Piping
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Transmission : Transmission Pump
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 6 |
| 07***80 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***20 | O-Ring,Lubricating Oil Piping | 1 |
Work Equipment
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Bucket
| 01***90 | Bolt (M10-1.50x90) | 3 |
| 01***11 | Nut,(Not Shown) | 3 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 6 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Bucket (For Multi Coupler)
| 02***55 | Bolt (Only For Bucket With Cutting Edge) | 12 |
| 10***11 | Tooth (Op) | 6 |
| 10***20 | Nut | 12 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Dumpping Fork
| 01***90 | Bolt (M10-1.50x90) | 3 |
| 01***11 | Nut,(Not Shown) | 3 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 3 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Dumpping Fork (For Multi Coupler)
| 36***20 | Fork (Welded) | 1 |
| 36***40 | Plate,Allowable Load Table | 1 |
| 36***50 | Fork | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Large-Capacity Bucket : Unit_01_of_02
| 01***90 | Bolt (M10-1.50x90) | 3 |
| 01***11 | Nut,(Not Shown) | 3 |
| 02***55 | Bolt (Only For Bucket With Cutting Edge) | 12 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Large-Capacity Bucket : Unit_02_of_02
| 01***90 | Bolt (M10-1.50x90) | 3 |
| 01***11 | Nut,(Not Shown) | 3 |
| 02***55 | Bolt (Only For Bucket With Cutting Edge) | 12 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Lift Arm
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Long Lift Arm
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Lumber Fork
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 04***20 | Spring Pin | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Multi Coupler
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Side Frame And Front Cover
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 6 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 16 |
| 01***25 | Bolt - Rear Guard Mounting | 10 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Side Frame(#3001-4101)
| 01***25 | Bolt - Rear Guard Mounting | 10 |
| 01***30 | Capscrew | 4 |
| 01***36 | Washer,Radio Controlled Slag Handling | 10 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Side Frame(#4102-)
| 01***25 | Bolt - Rear Guard Mounting | 10 |
| 01***36 | Washer,Radio Controlled Slag Handling | 10 |
| 04***12 | Lock,(With Rain Cap) | 5 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Utility Fork
| 01***90 | Bolt, Fan Mounting | 3 |
| 01***16 | Nut - M20 | 15 |
| 01***11 | Nut,(Not Shown) | 3 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment : Utility Fork (For Multi Coupler)
| 01***90 | Bolt, Fan Mounting | 3 |
| 01***16 | Nut - M20 | 15 |
| 01***11 | Nut,(Not Shown) | 3 |
Work Equipment Control System
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Bucket Control Lever
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 3 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Bucket Dump Cylinder(#3001-4101)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Bucket Dump Cylinder(#4102-)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Bucket Lift Cylinder(#3001-4101)
| 01***09 | Nut,(With Body Positioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Bucket Lift Cylinder(#4102-)
| 01***09 | Nut,(With Body Positioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2)
| 01***16 | Bolt (Op) | 4 |
| 01***25 | Bolt, Seal Cover Mounting | 2 |
| 01***30 | Bolt | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2)
| 07***11 | O-Ring (Kit) | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 2 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 3 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Filter
| 01***20 | Bolt,(Large Capacity Type) (Std) | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
| 07***34 | O-Ring,(For Front Attachment) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Oil Piping
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Oil Piping(#3001-3352)
| 01***16 | Bolt,(For Slag Handling) | 3 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Oil Piping(#3001-4101)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 7 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 1 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Oil Piping(#3353-)
| 01***16 | Bolt,(For Slag Handling) | 3 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Oil Piping(#4102-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 7 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Pump(#3001-4101)
| 04***15 | Ring, Snap | 1 |
| 70***10 | Seal,Oil | 1 |
| 70***70 | Plate | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Pump(#4102-)
| 04***15 | Ring, Snap | 1 |
| 70***10 | Seal,Oil | 1 |
| 70***70 | Plate | 1 |
Komatsu : Wa30-2(S/N 3001-Up) : Work Equipment Control System : Hydraulic Tank
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***35 | Bolt | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
WA30-2(S/N 3001-UP) serial number reference
The serial plate sits on the right-hand (curb) side of the machine, above or just behind the front fender. Komatsu also stamps the full serial into the frame near the same spot as a backup. Because this is a compact utility loader, the plate carries a plain numeric string rather than the letter-prefixed PIN format used on Komatsu's larger wheel loaders and excavators. Read the number as-is and compare it to the S/N 3001-UP break to confirm the machine falls in the WA30-2 generation rather than WA30-1, WA30-3, or WA30-5.
| Prefix | Identifies | Notes |
|---|---|---|
| 3001 | WA30-2 (S/N 3001-UP) compact wheel loader, Komatsu WA30 series | This machine carries a plain numeric serial number, not a letter-prefixed PIN like Komatsu's larger wheel loaders. 3001 opens the WA30-2 generation in the factory parts book, following WA30-1 (breaks at 1001-UP) and preceding WA30-3 (JPN) (breaks at 9001-UP). The WA30-2 window runs roughly from 3001 up to just under the WA30-3 break; the exact top of the WA30-2 range itself is not separately published, so confirm with a dealer if it matters for parts fitment. Factory parts literature ties this serial range to the 3D84-1C engine, a 3-cylinder water-cooled diesel built on the same block family Komatsu shares with Yanmar for its small equipment. That is distinct from the 4D94-2 fitted to the earlier WA30-1 and the S3D84/3D84E fitted to the later WA30-5/WA40-3/WA50-3 family. |
Frequently asked questions
What engine powers the Komatsu WA30-2(S/N 3001-UP)?
A Yanmar-built 3D84-1C, a mechanically governed 3-cylinder diesel of roughly 1.4 L displacement with indirect (swirl-chamber) injection and glow-plug assisted cold starting. Output is about 20.6 kW (28 PS) at 2,600 rpm. There's no ECM or factory diagnostic fault codes on this generation — just analog gauges and warning lamps.
What is the operating weight of the Komatsu WA30-2(S/N 3001-UP)?
Roughly 2,300-2,380 kg (5,070-5,250 lb), depending on bucket and cab/canopy configuration — solidly in the compact/mini wheel loader class.
What replaced the Komatsu WA30-2(S/N 3001-UP)?
The direct successor is the WA30-3(S/N 9001-UP). Komatsu carried the WA30 nameplate forward through the WA30-5(S/N 15001-UP), WA30-5(S/N 26001-UP), and WA30-5NA(S/N 15001-UP, for North America) — each a distinct generation with its own engine and spec, not a drop-in match for the WA30-2's Yanmar-powered mechanical platform.
What WA30-2(S/N 3001-UP) owners discuss
Why does the loader feel sluggish or slow to respond right after startup?
Cold hydraulic oil is the usual cause on a compact loader like this. Thick oil restricts flow through screens and passages until it warms up, so lift, tilt, and steering response feel soft on a cold engine and tighten up within a few minutes of running. If sluggishness does not clear once the machine is fully warm, treat it as a restricted filter or screen, or oil that has broken down and needs changing, not a pump fault. Have your dealer verify hydraulic pressure with a gauge before condemning the pump.
What wears out first on the articulation joint and steering linkage?
Center articulation pins and bushings take the most abuse on a small articulated loader. The joint is under constant load and motion, so grease intervals matter more here than on a stiff-frame machine. Skipped greasing, or greasing over caked dirt at the fitting, packs grit into the pin bore and wears the bushing egg-shaped, producing play and a knock in the joint within a few thousand hours. Clean the fitting before greasing and grease more often in dusty or muddy conditions.
What are the known quirks of the engine on this generation?
This machine runs a small mechanically governed 3-cylinder diesel with an indirect swirl-chamber combustion design and glow-plug assisted cold starting, not an electronically controlled engine. No ECM and no sensors means fewer intermittent electrical gremlins than later machines. The main quirk is cold-start behavior: weak or failing glow plugs, or a bad glow plug relay/timer, cause hard cold starts well before the injection pump or compression should be suspected. Injection pump and mechanical governor settings drift with age and hours, so a slight idle hunt or uneven running is routine adjustment, not a defect.
What electrical problems come up most on these machines?
Since the engine and controls are mechanical rather than electronic, electrical trouble on this generation is almost always a basic charging or starting circuit fault, not a sensor or module problem. Corroded or loose connectors, a weak or sulfated battery, worn starter relay contacts, and alternator diode leakage into the start/safety relay are the usual culprits. An unpredictable no-start or flaky gauge reading is more often a dirty ground or connector than a harness that needs replacing.
Any known issues with the brakes or final drives?
Service brakes on this loader are wet, hydraulically activated, sealed discs, the same basic design used across this compact loader family. Wet discs run low-maintenance and long-lived when the brake circuit oil is changed on schedule. Neglected oil or a slow internal leak lets the discs run dry and glaze, which shows up as a soft or fading pedal. Because this affects stopping and parking brake holding force, have your dealer verify brake circuit pressure and disc condition rather than judging by pedal feel alone.
Is parts availability a real concern for an owner today?
Yes. This is one of the more common frustrations for owners running a compact loader this old. Many components were never widely stocked outside Japan and the factory parts network, so an order can mean a real wait rather than an over-the-counter part. Owners keeping these machines running long term usually work with a dealer or specialist who can source or cross-reference parts, and they build lead time into repair planning rather than expecting same-day parts.
What should a buyer check before purchasing a used WA30-2(S/N 3001-UP)?
Start the engine cold and watch smoke and starting behavior; hard cold starts point to tired glow plugs or worn injectors and low compression. Cycle the loader arm and bucket through full travel and watch for hesitation or creep that does not clear once the machine is warm; that flags a hydraulic pump or valve on the way out rather than just cold oil. With the engine off, rock the front and rear frames against each other at the articulation joint to check for play, and inspect grease fittings for signs of neglect. Test the brake pedal for firmness and check the wet brake housings for fluid seepage. Weigh the hour meter reading against wear on pedals, seat, and controls, and ask for maintenance records given how parts-constrained this model can be. Have your dealer verify hydraulic and brake circuit pressures before final purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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