Komatsuhydraulic shovels(no series)
Komatsu H135S-1(S/N G61045)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu H135S-1 is a hydraulic shovel (crawler excavator) designed for heavy mining and large-scale earthmoving. Production years for the H135S-1 series span the late 1990s through the early 2000s. The machine class is heavy mining equipment with an operating weight of approximately 308,647 lb (140,000 kg). It succeeded earlier H-series models and was eventually replaced by the H170S-1 and H215S-1 generations. Configurations offered include various boom and stick lengths, such as a 26 ft 315 in (8000 mm) boom with an 11 ft 142 in (3600 mm) stick, and a 39 ft 472 in (12000 mm) boom with an 11 ft 142 in (3600 mm) stick.
Across the H-series generations, Komatsu increased engine power, hydraulic capacity, and bucket digging force to handle larger payloads and deeper excavation profiles. The H135S-1 is important in the used and parts market because its robust undercarriage and heavy-duty powertrain components remain in high demand for refurbishment. As original equipment ages, the availability of reliable replacement parts for the swing gear, final drives, and hydraulic pumps ensures these machines continue to operate in mining and quarry applications.
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 H135S-1(S/N G61045) specifications
Engine
| Model | VTA28-C-800 |
| Gross Power | 728.2 hp (543 kW) |
| Net Power | 728 hp (543 kW) |
| Power Measured @ | 1800 rpm |
| Displacement | 28.0 L (1708.7 cu in) |
| Cylinders | 12 |
| Aspiration | Turbocharged |
Weights
| Operating Weight | 308,647 lb (140,000 kg) |
| Ground Pressure | 29.3 psi (202 kPa) |
Dimensions
| Width Over Tracks | 16.77 ft (5.11 m) |
| Length Of Track On Ground | 16.02 ft (4.88 m) |
| Track Gauge | 13.95 ft (4.25 m) |
| Ground Clearance | 2.55 ft (0.78 m) |
| Height To Top Of Cab | 20.45 ft (6.23 m) |
| Tail Swing Radius | 16.21 ft (4.94 m) |
| Removal Counterweight Clearance | 6.32 ft (1.93 m) |
| Shoe Size | 23.63 in (600 mm) |
Performance
| Max Travel Speed | 2.4 km/h (1.5 mph) |
| Swing Speed | 6.2 rpm |
| Hydraulic Pump Flow Capacity | 1,650 L/min (435.9 gal/min) |
| Hydraulic System Relief Valve Pressure | 31 MPa (4,495 psi) |
| Reference Bucket Capacity | 9.56 m³ (12.5 cu yd) |
Service capacities (summary)
| Fuel Capacity | 475.6 gal (1,800 L) |
| Hydraulic System Fluid Capacity | 425.4 gal (1,610 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu H135S-1(S/N G61045) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the H135S-1(S/N G61045) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA fluid analysis at every 500-hour interval to monitor engine oil wear metals, hydraulic fluid particle count, and coolant pH levels. Track hydraulic oil viscosity and oxidation to predict pump and valve wear. Monitor final drive oil for gear wear indicators. Use KOMTRAX telematics to track load frequency and fault codes, allowing proactive intervention before catastrophic failure occurs in the H135S-1 powertrain.
Corrective & Common Repairs
Address common H135S-1 issues by inspecting pilot oil units for leaks and replacing worn seals in the hydraulic control system. Check slew-brake valve for proper engagement to prevent swing drift. Inspect track adjuster nitrogen pressure to maintain correct track tension and reduce undercarriage wear. Replace hydraulic hoses showing cracks or abrasion during 2000-hour service to prevent high-pressure fluid leaks.
Overhaul & Rebuild Points
Plan major overhauls for the H135S-1 swing machinery and final drives at high-hour intervals. Inspect swing circle bolts and gear teeth for pitting or wear. Check boom and stick welds for structural fatigue during 2000-hour comprehensive inspection. Rebuild hydraulic pumps and motors when KOWA analysis shows excessive wear metals or when hydraulic flow drops below specification. Replace undercarriage components like sprockets and idlers based on measured wear limits.
Seasonal & Environment Servicing
In cold climates, install the hot-water-heater to maintain engine coolant temperature for easier starting. Check air filter restriction indicator frequently in dusty mining environments to prevent engine damage. In hot conditions, clear debris from radiator and oil cooler fins daily to prevent overheating. Adjust track tension for muddy or rocky terrain to improve traction and reduce undercarriage stress. Use Komatsu Genuine Lubricants suited for the operating temperature range.
H135S-1(S/N G61045) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 4N5 823 | Fuel Filter Cartridge | Fuel system service | Check fitment → |
| 2P4 005 | Oil Filter Cartridge | Lubrication service | Check fitment → |
| 358 601 40 | Return Oil Filter, Assembly | Lubrication service | Check fitment → |
| 414 024 40 | Return Oil Filter (H65, H135) (H65, H135) A = 375 | Lubrication service | Check fitment → |
| 490 108 40 | Return Oil Filter (H55, H65) (H55, H65) A = 570 | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
H135S-1(S/N G61045) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Faulty crankshaft speed sensor, broken wiring harness, or corroded connector at the sensor pin. | Inspect the sensor wiring and connector for damage or corrosion. Replace the speed sensor if the circuit is intact but the fault persists. |
| CA441 | Battery voltage too low | Discharged battery, failing alternator, or loose/corroded battery terminals. | Check battery terminal tightness and corrosion. Test alternator output and battery health; replace defective components. |
| CA442 | Battery voltage too high | Faulty voltage regulator, failing alternator, or loose alternator drive belt. | Inspect the alternator drive belt for tension and wear. Test the alternator and voltage regulator; replace if output exceeds specifications. |
| CA122 | Intake air pressure sensor feedback voltage too high | Faulty intake air pressure sensor, shorted sensor wiring, or sensor internal failure. | Check the sensor wiring harness for shorts to power. Test sensor voltage output; replace the sensor if the wiring is sound. |
| CA123 | Intake air pressure sensor feedback voltage too low | Faulty intake air pressure sensor, open sensor wiring circuit, or disconnected sensor plug. | Verify the sensor connector is fully seated. Check the wiring harness for open circuits. Replace the sensor if the circuit is complete. |
| CA144 | Coolant temperature sensor feedback voltage too high | Faulty coolant temperature sensor, shorted sensor wiring, or sensor internal failure. | Inspect the sensor wiring for shorts to power. Test the sensor resistance/voltage; replace the sensor if the wiring is intact. |
| CA145 | Coolant temperature sensor feedback voltage too low | Faulty coolant temperature sensor, open sensor wiring circuit, or disconnected sensor plug. | Verify the sensor connector is fully seated. Check the wiring harness for open circuits. Replace the sensor if the circuit is complete. |
| CA451 | Common rail pressure sensor feedback value too high | Faulty rail pressure sensor, shorted sensor wiring, or actual overpressure condition in the fuel rail. | Check the sensor wiring harness for shorts. Verify actual rail pressure with a mechanical gauge; replace the sensor if pressure is normal. |
| CA452 | Common rail pressure sensor feedback value too low | Faulty rail pressure sensor, open sensor wiring circuit, or low fuel pressure due to pump issues. | Verify the sensor connector is fully seated. Check the wiring harness for open circuits. Inspect the fuel supply pump if the circuit is sound. |
| CA234 | Engine overspeed | Throttle calibration error, operator misuse, or faulty throttle position sensor. | Verify throttle calibration and linkage operation. Check the throttle position sensor signal. Inspect for operator error or load cycle issues. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
H135S-1(S/N G61045) attachments & work tools
Standard Digging Bucket
Typical capacity for this class ranges from 10 to 14 cubic yards (7.6 to 10.7 m³). Factory configurations often include heavy-duty side cutters and wear plates for high-abrasion applications.
Heavy-Duty/Rock Bucket
Designed for rocky terrain with reinforced structure and replaceable cutting edges. Capacity is generally lower than standard buckets, often around 8 to 10 cubic yards (6.1 to 7.6 m³), to maximize breakout force and durability.
Light Material/Coal Bucket
Features a larger volume and wider profile for high-production digging of loose materials. Capacities can exceed 14 cubic yards (10.7 m³) depending on the specific boom and stick configuration selected.
Coupler/Mounting System
Utilizes a fixed pin-on connection system typical for large mining shovels. The attachment interface is designed for high-impact loads, requiring robust pin retention mechanisms to prevent disengagement during operation.
Hydraulic Kit Requirements
Attachments requiring auxiliary hydraulics, such as hydraulic breakers or grapples, require a dedicated hydraulic kit. This includes additional hose runs, control valves, and pilot lines integrated into the main hydraulic system.
Boom/Stick Configurations
The H135S-1 supports multiple boom and stick lengths to match tool requirements. Common configurations include a 26'3
All H135S-1(S/N G61045) assemblies by section
Every catalogued assembly group for the Komatsu H135S-1(S/N G61045). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
* = Variations From Page:
Komatsu : H135s-1(S/N G61045) : * = Variations From Page : : Bolt 4 Pcs.
| 00***98 | Hose Clamp | 2 |
| 00***98 | Bolt | 16 |
| 1F***58 | Nut | 12 |
Komatsu : H135s-1(S/N G61045) : * = Variations From Page : : Compressor
| 00***98 | Hose Clamp | 2 |
| 00***98 | Bolt | 16 |
| 1F***58 | Nut | 12 |
Komatsu : H135s-1(S/N G61045) : * = Variations From Page : : Console
| 00***98 | Hose Clamp | 2 |
| 00***98 | Bolt | 16 |
| 1F***58 | Nut | 12 |
Komatsu : H135s-1(S/N G61045) : * = Variations From Page : : Conversion Kit Drive Gear Box Mounted
| 25***40 | Hv-Washer | 36 |
| 25***40 | Hv-Washer | 48 |
| 30***99 | Bolt 200lg. (Standard) | 72 |
Komatsu : H135s-1(S/N G61045) : * = Variations From Page : : Disc 4 Pcs.
| 00***98 | Hose Clamp | 2 |
| 00***98 | Bolt | 16 |
| 1F***58 | Nut | 12 |
Komatsu : H135s-1(S/N G61045) : * = Variations From Page : : Operator'S Cab Fig-No : 01
| 05***40 | Grommet | 2 |
| 05***40 | Socket | 2 |
| 05***40 | Bulb 10 W | 4 |
Komatsu : H135s-1(S/N G61045) : * = Variations From Page : : V-Belt Pulley Fig-No : 18
| 00***98 | Hose Clamp | 2 |
| 00***98 | Bolt | 16 |
| 1F***58 | Nut | 12 |
Annex
Komatsu : H135s-1(S/N G61045) : Annex : Colour : Chrome Yellow
Komatsu : H135s-1(S/N G61045) : Annex : Electric Schematic
Komatsu : H135s-1(S/N G61045) : Annex : Hydraulic Schematic
Komatsu : H135s-1(S/N G61045) : Annex : Tools And Accessories
Bullclam Bucket Equipment
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Boom 5,0 M
| 00***98 | Half Flanged | 66 |
| 00***98 | O-Ring | 39 |
| 16***40 | Hose Assembly. Nw 32x1000 Lg | 4 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Bullclam Bucket, Cylinders
| 00***98 | Grease Nipple | 2 |
| 00***98 | Half Flange | 16 |
| 00***98 | Half Flanged | 4 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Hydr. Cylinder
| 00***98 | Grease Nipple | 3 |
| 20***40 | Seal | 1 |
| 20***40 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Hydraulic Cylinder
| 00***98 | Grease Nipple | 3 |
| 20***40 | Glydring | 1 |
| 20***40 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Hydraulic Cylinder (S)
| 00***98 | O-Ring | 1 |
| 00***98 | Grease Nipple | 3 |
| 20***40 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Pipes, Bucket Cylinder, L.H.
| 00***98 | O-Ring | 2 |
| 30***99 | Bolt | 2 |
| 31***99 | Screw | 8 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Pipes, Bucket Cylinder, R.H.
| 00***98 | O-Ring | 2 |
| 30***99 | Bolt | 2 |
| 31***99 | Screw | 8 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Piping, Basic Boom Cylinder L.H. (S)
| 00***98 | O-Ring | 2 |
| 00***98 | O-Ring | 1 |
| 30***99 | Screw | 6 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Piping, Basic Boom Cylinder R.H. (S)
| 00***98 | O-Ring | 2 |
| 00***98 | O-Ring | 1 |
| 30***99 | Screw | 6 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Stick 3,9 M
| 00***98 | Half Flange | 8 |
| 00***98 | Half Flanged | 12 |
| 00***98 | O-Ring | 6 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : Stick Cylinder With Pipes
| 00***98 | O-Ring | 1 |
| 00***98 | O-Ring | 1 |
| 11***40 | Pipe Bracket | 1 |
Komatsu : H135s-1(S/N G61045) : Bullclam Bucket Equipment : And Piping
Drive
Komatsu : H135s-1(S/N G61045) : Drive
Komatsu : H135s-1(S/N G61045) : Drive : -Air Cleaner
| 30***99 | Bolt | 20 |
| 30***99 | Lock Washer | 22 |
| 33***99 | Nut | 22 |
Komatsu : H135s-1(S/N G61045) : Drive : -Coupling
| 30***99 | Screw | 2 |
| 34***99 | Dowel Sleeve | 32 |
| 50***98 | Bolt | 32 |
Komatsu : H135s-1(S/N G61045) : Drive : -Engine
| 2P***05 | Oil Filter Cartridge | 2 |
| 2W***87 | Pressure Gauge, Fuel | 1 |
| 3T***67 | Starter | 1 |
Komatsu : H135s-1(S/N G61045) : Drive : -Fan Pump
| 25***40 | Plug | 1 |
| 31***99 | Screw | 4 |
| 31***99 | Screw | 2 |
Komatsu : H135s-1(S/N G61045) : Drive : -Main Pump
Komatsu : H135s-1(S/N G61045) : Drive : -Pump Distributor Gear
| 00***98 | O-Ring | 1 |
| 00***98 | O-Ring | 4 |
| 08***54 | O-Ring | 2 |
Komatsu : H135s-1(S/N G61045) : Drive : -Radiator
| 00***98 | Clamp | 2 |
| 30***99 | Screw | 20 |
| 31***99 | Plug | 6 |
Komatsu : H135s-1(S/N G61045) : Drive : -Center
Komatsu : H135s-1(S/N G61045) : Drive : -Front
Komatsu : H135s-1(S/N G61045) : Drive : -Rear
Komatsu : H135s-1(S/N G61045) : Drive : Air Cleaning System, Cat
| 00***99 | Bolt | 6 |
| 00***98 | Hose Clip | 6 |
| 14***40 | Maintenance Switch | 2 |
Komatsu : H135s-1(S/N G61045) : Drive : Drive, Cat
| 00***98 | Hose Clamp | 2 |
| 00***98 | Bolt | 16 |
| 1F***58 | Nut | 12 |
Komatsu : H135s-1(S/N G61045) : Drive : Engine : Caterpillar
Komatsu : H135s-1(S/N G61045) : Drive : Exhaust System, Cat
| 21***40 | Muffler | 1 |
| 23***40 | Half Clamp | 2 |
| 23***40 | Half Clamp | 2 |
Komatsu : H135s-1(S/N G61045) : Drive : Fan Mounting - Radiator
| 00***98 | Union | 2 |
| 30***40 | Disc | 2 |
| 30***99 | Bolt 25 mm Lg | 4 |
Komatsu : H135s-1(S/N G61045) : Drive : Fuel Lines, Cat
| 23***40 | Ball Cock | 1 |
| 25***40 | Hose Dn 12 X Ca. 4000 Lg. Bulk Ware, State Length Required | 1 |
| 25***40 | Hose Fittings | 1 |
Komatsu : H135s-1(S/N G61045) : Drive : Lines For Radiator, Cat
| 00***98 | Clamp | 4 |
| 00***98 | Clamp | 4 |
| 00***98 | Clamp | 4 |
Komatsu : H135s-1(S/N G61045) : Drive : Output :
Komatsu : H135s-1(S/N G61045) : Drive : Pump And Distributor Gear Arrangement
| 00***98 | Union | 1 |
| 26***40 | Hose Fittings | 2 |
| 30***99 | Bolt | 12 |
Komatsu : H135s-1(S/N G61045) : Drive : Radiator Arr.
| 08***80 | Hinge Pin | 4 |
| 12***40 | Base | 1 |
| 12***40 | Retainer | 4 |
Komatsu : H135s-1(S/N G61045) : Drive : Serial-No. :
Komatsu : H135s-1(S/N G61045) : Drive : Series :
Komatsu : H135s-1(S/N G61045) : Drive : Speed Control
| 00***98 | Union | 1 |
| 18***40 | Connection Plate | 1 |
| 21***99 | Pipe ? 12 Ca 300mm Bulk Ware, State Length Required | 0 |
Komatsu : H135s-1(S/N G61045) : Drive : Suction Lines
| 00***98 | O-Ring | 1 |
| 26***40 | Hose Fittings | 6 |
| 30***99 | Bolt 35 Lg | 12 |
Electric
Komatsu : H135s-1(S/N G61045) : Electric : Batteries With Cables
| 00***98 | Pipe Clamp, Rubber Armed | 8 |
| 14***40 | Cable Shoe | 8 |
| 30***99 | Screw | 4 |
Komatsu : H135s-1(S/N G61045) : Electric : Cables - Cab Support
| 05***15 | Cable Protection Hose Ca. 4000 mm Bulk Ware, State Length Required | 6 |
| 32***40 | Cable Union Pg 21 | 3 |
| 35***40 | Cable Protection Hose Pg 16 Bulk Ware, State Length Required | 0 |
Komatsu : H135s-1(S/N G61045) : Electric : Cables - Oil Tank And Control Frame
| 00***98 | Clamp 22/15 | 10 |
| 05***40 | Cable Lug, Red | 15 |
| 05***15 | Cable Protection Hose Ca. 4000 mm Bulk Ware, State Length Required | 17 |
Komatsu : H135s-1(S/N G61045) : Electric : Cables Superstructure
| 00***98 | Clamp 15/15 | 5 |
| 00***98 | Clamp 18/15 | 20 |
| 05***40 | Cable Lug, Red | 15 |
Komatsu : H135s-1(S/N G61045) : Electric : Electric Equipment
| 25***40 | Housing, Empty | 2 |
Komatsu : H135s-1(S/N G61045) : Electric : Horn, Illumination
| 25***40 | Compressor-Single Ton-Horn Consist. Of Fig.-No: 03-05 | 1 |
| 27***40 | Compressor-Two Ton-Horn Consist. Of Fig.-No: 05-08 | 1 |
| 30***99 | Bolt 20 mm Lg | 4 |
Komatsu : H135s-1(S/N G61045) : Electric : Junction Box On Oil Tank
| 05***40 | Pull Switch | 1 |
| 25***40 | Housing, Empty | 1 |
| 32***99 | Screw | 6 |
Komatsu : H135s-1(S/N G61045) : Electric : Main Switch Box In Cabin Support
| 05***40 | Pull Switch | 1 |
| 05***40 | Flanged Socket | 1 |
| 05***40 | Ground Wire - Series Terminal | 20 |
Komatsu : H135s-1(S/N G61045) : Electric : Operation Panel
| 14***40 | Disc | 8 |
| 27***40 | Connector Socket | 1 |
| 30***40 | Cover | 1 |
Komatsu : H135s-1(S/N G61045) : Electric : Standard Lighting Equipment
| 00***98 | Clamp 15/15 | 30 |
| 05***40 | Plug To Fig-No: 17 | 3 |
| 05***40 | Socket | 1 |
Komatsu : H135s-1(S/N G61045) : Electric : Switch Box - Engine
Komatsu : H135s-1(S/N G61045) : Electric : Wire Layout - Engine, Cat
| 05***40 | Cable Lug, Red | 15 |
| 35***40 | Cable Protection Hose Pg 9x***00 Lg. Bulk Ware, State Length Required | 0 |
| 35***40 | Cable Protection Hose Pg 21 Pg 21x1400 Lg. Bulk Ware, State Length Required | 2 |
General View
Komatsu : H135s-1(S/N G61045) : General View : General View Bullclam Bucket Equipment
Komatsu : H135s-1(S/N G61045) : General View : General View Drive
Komatsu : H135s-1(S/N G61045) : General View : General View Electric
Komatsu : H135s-1(S/N G61045) : General View : General View Hydraulic
Komatsu : H135s-1(S/N G61045) : General View : General View Lubrication- And Refueling Equipment
Komatsu : H135s-1(S/N G61045) : General View : General View Operator'S Cab
Komatsu : H135s-1(S/N G61045) : General View : General View Shovel
Komatsu : H135s-1(S/N G61045) : General View : General View Superstructure
Komatsu : H135s-1(S/N G61045) : General View : General View Undercarriage
Komatsu : H135s-1(S/N G61045) : General View : Machine-Maintenance Parts, Cat
| 25***40 | O-Ring, H.P. Element Lubrication + Cooling | 3 |
| 26***40 | Air Cleaner, Cabin Supercharger | 1 |
| 2P***05 | Oil Filter Cartridge | 2 |
Komatsu : H135s-1(S/N G61045) : General View : Painting/Decals/Stop Pads
| 00***98 | Plate, German | 1 |
| 24***40 | Decal Set | 1 |
| 34***40 | Decal Set H 135 | 2 |
Heater And Air Condit. Equipment
Komatsu : H135s-1(S/N G61045) : Heater And Air Condit. Equipment : -Heater Assembly
| 46***40 | Heat Exchanger | 1 |
| 51***40 | Heater Consist. Of Fig-Nos: 02-08 | 1 |
| 69***73 | Tab 4-Pole | 1 |
Komatsu : H135s-1(S/N G61045) : Heater And Air Condit. Equipment : Hot-Water-Heater, Cat
| 25***40 | Hose Dn 12 X Ca. 4000 Lg. Bulk Ware, State Length Required | 2 |
| 25***40 | Breather Up To 06 122 | 2 |
| 25***40 | Hose Fittings, Straight | 1 |
Hydraulic
Komatsu : H135s-1(S/N G61045) : Hydraulic
Komatsu : H135s-1(S/N G61045) : Hydraulic : --Pressure Sequence Stage
| 10***65 | O-Ring | 1 |
| 49***40 | Pressure Sequence Stage Assembly | 1 |
| 50***98 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -Anticavitation Valve
| 25***40 | Anticavitation Valve Assembly. Ng 20 | 1 |
| 36***99 | O-Ring | 2 |
| 50***98 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -Bleed-Off Valve
| 00***98 | O-Ring | 2 |
| 32***40 | Valve, Pre-Controlled Assembly. 125 Bar | 0 |
| 35***40 | Pressure Valve For Bullclam Bucket Equipment | 0 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -Control Blocks
| 16***40 | Release Valve | 3 |
| 31***99 | Eye Bolt | 2 |
| 31***99 | Bolt | 24 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -H.P. Filter
| 31***99 | Screw | 4 |
| 34***99 | Lock Washer | 4 |
| 34***40 | Gasket | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -H.P. Filter For Fan, Lube- And Pilot Oil
| 25***40 | O-Ring, H.P. Element Lubrication + Cooling | 1 |
| 31***99 | Screw | 4 |
| 34***99 | Lock Washer | 4 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -H.P. Filter For Gear Oil
| 25***40 | O-Ring, H.P. Element Lubrication + Cooling | 1 |
| 31***99 | Screw | 4 |
| 34***99 | Lock Washer | 4 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -Load Limitation Valve
| 17***40 | Plug | 3 |
| 33***99 | Nut | 1 |
| 36***40 | Load Limitation Valve Assembly. For H 121 (All Diesel Engines) | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -Pressure Relief Valve
| 00***98 | O-Ring | 1 |
| 31***99 | Screw | 4 |
| 44***40 | Directional Spool Valve Assembly. With Fig-Nos: 09-14 | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : -Slew-Brake Valve
| 00***98 | O-Ring | 2 |
| 31***99 | Bolt | 4 |
| 46***40 | Brake Valve Assembly | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Add. Parts Bullclam Bucket Control
| 00***98 | O-Ring | 1 |
| 00***98 | Union | 1 |
| 21***99 | Pipe ? 10x270 Lg. Bulk Ware, State Length Required | 0 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Control And Fuel Lines - Control Blocks
| 00***98 | Union | 5 |
| 00***98 | Union | 3 |
| 00***98 | Union | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Control Blocks - Oil Tank - Pumps
| 00***98 | Half Flange | 12 |
| 00***98 | Half Flange | 12 |
| 00***98 | Flange Seal | 6 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Control Blocks - Slew Gear
| 00***98 | Half Flanged | 4 |
| 00***98 | Half Flange | 4 |
| 00***98 | Union | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Control Clamshell And Drive
| 00***98 | Union | 4 |
| 25***40 | Hose Fittings | 0 |
| 26***40 | Hose Nw 10x Ca. 8000 mm Bulk Ware, State Length Required | 0 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Filter And Valve Arrangement
| 08***40 | Pressure Relief Valve (10 Bar) | 1 |
| 15***40 | Test - Screw Coupling | 1 |
| 17***40 | Union | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Hydr. Oil Cooler
| 00***98 | Test Socket | 1 |
| 00***98 | Half Flange | 2 |
| 00***98 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Hydraulic Control
| 00***98 | Socket | 1 |
| 00***98 | Union | 1 |
| 12***40 | Retainer | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Lines - Control Blocks - Rotary Joint
| 00***98 | Half Flange | 8 |
| 00***98 | Union | 1 |
| 17***40 | Plug | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Lines - Manifold - Basic Boom Bbe
| 00***98 | Half Flanged | 11 |
| 30***99 | Bolt | 22 |
| 31***99 | Screw | 44 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Manifold - Control Blocks And H.P. Filter
| 15***40 | Test - Screw Coupling | 9 |
| 16***40 | Release Valve | 0 |
| 30***99 | Bolt (Standard) | 4 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Pilot Oil Units L.H., R.H. And L.H. Rear Euro
| 00***98 | Union | 12 |
| 25***40 | Hose Fittings | 12 |
| 25***40 | Hose Fittings | 0 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Piping - Control Blocks - Manifold Bbe
| 31***99 | Bolt (Standard) | 96 |
| 31***99 | Bolt | 24 |
| 35***40 | Flange Seal | 24 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Pump Bearing Lubrication With Expansion Tank
| 25***40 | Hose Dn 12 X Ca. 4000 Lg. Bulk Ware, State Length Required | 1 |
| 25***40 | Screwed Fittings | 1 |
| 26***40 | Hose Fittings | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Pump Lube And Regulating Equipment
| 00***98 | Test Union | 1 |
| 00***98 | Union | 1 |
| 00***98 | Socket | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Throttle Check Valve
| 08***40 | O-Ring | 1 |
| 17***40 | Screw Plug | 1 |
| 25***40 | Valve Disk | 1 |
Komatsu : H135s-1(S/N G61045) : Hydraulic : Transmission - Oil Cooler
| 00***98 | Test Coupling | 1 |
| 00***98 | Union | 1 |
| 00***98 | Union | 1 |
Lubrication- And Refueling Equipment
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : -Grease Gun
| 69***73 | Coupling With Pipe | 1 |
| 69***73 | Coupling | 1 |
| 69***73 | Adapter | 1 |
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : -Hose Reel
| 69***68 | Hose Reel Fig-Nos. 01-39 | 1 |
| 69***73 | Washer | 1 |
| 69***73 | Washer | 4 |
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : -Lube Pump Station
| 21***99 | Pipe ? 10 Bulk Ware, State Length Required | 0 |
| 37***99 | Union | 1 |
| 55***40 | Lube Pump Station Consist. Of Fig-Nos: 02-26 | 1 |
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : -Pump
| 00***98 | O-Ring To Fig-Nos. 61,62 | 2 |
| 69***14 | Pin | 1 |
| 69***16 | Bush With Thread | 1 |
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : Grease Pump Arrangement
| 00***98 | Locking Spring | 1 |
| 21***99 | Pipe ? 12 Ca 300mm Bulk Ware, State Length Required | 0 |
| 25***40 | Hose Dn 12 X Ca. 4000 Lg. Bulk Ware, State Length Required | 0 |
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : Greases
| 27***40 | Grease T3 Hs -40/-10? C / 50 Kg | 1 |
| 32***40 | Grease T2 Hs -20/+10? C /50 Kg | 1 |
| 50***98 | Adhesive Lubrication Spray | 1 |
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : Hand Greasing, Boom And Stick,
| 00***98 | Grease Nipple | 20 |
| 00***98 | Clamp 15/15 | 37 |
| 00***98 | Union | 12 |
Komatsu : H135s-1(S/N G61045) : Lubrication- And Refueling Equipment : Bullclam Bucket
Operator'S Cab
Komatsu : H135s-1(S/N G61045) : Operator'S Cab
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : -Sliding Window
| 32***40 | Sliding Window Assembly, L.H | 1 |
| 35***40 | Sliding Window Assembly, R.H | 1 |
| 51***98 | Screw | 16 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Aux. Cab Parts
| 08***40 | Mirror | 2 |
| 11***40 | Mirror Bracket, R.H | 1 |
| 16***40 | Buffer | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Boom, Stick, Slew Gear
| 34***99 | Pin | 2 |
| 41***40 | Pilot Oil Unit Assembly | 1 |
| 50***98 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Bullclam Bucket
| 51***40 | Pilot Oil Unit Consist. Of Fig-Nos: 02-37 | 1 |
| 69***73 | Housing Consist. Of Fig-Nos: 03-10 | 1 |
| 69***73 | Housing | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Cab Support
| 08***40 | Lock Assembly | 1 |
| 08***40 | Handle | 1 |
| 16***40 | Profiled Joint 4400 Lg. Bulk Ware, State Length Required | 0 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Cab Support Arr.
| 30***99 | Bolt | 4 |
| 30***99 | Bolt To Fig-Nos. 03, 04 + 05 | 16 |
| 31***99 | Screw | 36 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Colour : Light Grey
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Cover
| 16***40 | Flex. Header Ca. 350 Lg. Bulk Ware, State Length Required | 0 |
| 16***40 | Flex. Header Ca. 1300 Lg. Bulk Ware, State Length Required | 0 |
| 19***40 | Shackle | 6 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Ladder
| 18***40 | Limit Switch | 1 |
| 30***99 | Cable Clamp | 2 |
| 30***99 | Bolt | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Ladders
| 30***99 | Screw | 15 |
| 30***99 | Screw | 6 |
| 30***99 | Screw | 0 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Operator'S Cab
| 05***40 | Grommet | 2 |
| 05***40 | Socket | 2 |
| 05***40 | Bulb 10 W | 4 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Operator'S Cab/Glazing
| 08***40 | Clamping Section 2800 Lg. (To Fig-Nos. 02,04) Bulk Ware, State Length Required | 2 |
| 08***40 | Filler Section 3000 Lg. Bulk Ware, State Length Required | 2 |
| 30***40 | Rear Window 803x458 | 2 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Operator'S Seat
| 30***99 | Bolt | 2 |
| 42***40 | Operator'S Seat Assembly | 1 |
| 50***98 | Screw | 3 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Operator'S Stand
| 26***40 | Air Cleaner, Cabin Supercharger | 1 |
| 30***40 | Rubber-Metal Block | 1 |
| 30***40 | Rubber-Metal Block | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Pilot Control Arr.
| 30***99 | Screw | 3 |
| 30***99 | Bolt | 1 |
| 32***99 | Screw | 12 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Pilot Oil Units : Foot Controlled
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Pilot Oil Units : Hand Controlled
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Protection Roof
| 38***40 | Bushing | 8 |
| 42***40 | Protection Roof Assembly | 1 |
| 45***40 | Roof Protection Arr | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Rails And Gratings
| 26***40 | Pin | 5 |
| 30***99 | Lock Washer | 16 |
| 30***99 | Screw | 0 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Slew Gear Brake
| 34***40 | Pilot Oil Unit Assembly | 1 |
| 69***22 | Return Spring | 1 |
| 75***73 | Base Assembly. Consist. Of Fig-Nos: 04-12 | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Travelling Gear
| 33***99 | Nut | 1 |
| 34***99 | Pin | 2 |
| 36***40 | Pilot Oil Unit, Assembly | 1 |
Komatsu : H135s-1(S/N G61045) : Operator'S Cab : Windscreen Washing Assy.
| 05***40 | Wiper Motor 120? | 1 |
| 19***40 | Diaphragm Pump | 1 |
| 19***40 | Water Reservoir | 1 |
Slew Ring
Komatsu : H135s-1(S/N G61045) : Slew Ring : -Brake
| 31***99 | Socket Head Cap Srew | 12 |
| 33***99 | Seal Ring | 1 |
| 33***99 | Seal Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Slew Ring : -Hydr. Motor
| 08***74 | Component Sealing Applies To Fig-No. 40, 58, 131 | 0 |
| 17***40 | Screw Plug | 1 |
| 24***40 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Slew Ring : -Slew Gear Box
| 30***99 | Screw | 12 |
| 31***99 | Plug | 2 |
| 31***99 | Bolt | 6 |
Komatsu : H135s-1(S/N G61045) : Slew Ring : Lube Arrangement For Slew Ring
| 00***98 | Grease Nipple | 32 |
| 00***98 | Pipe Clamp, Rubber Armed | 20 |
| 15***40 | Clamping Ring | 64 |
Komatsu : H135s-1(S/N G61045) : Slew Ring : Slew Ring And Slew Gear Box Arrangement
| 22***40 | Lip Type Seal Ng 25 X 9.200 mm Bulk Ware, State Length Required | 1 |
| 24***40 | Cam | 1 |
| 24***40 | Extension | 215 |
Komatsu : H135s-1(S/N G61045) : Slew Ring : Slew Ring Protection, Rigid
| 30***99 | Bolt | 32 |
| 30***99 | Bolt | 19 |
| 33***99 | Nut | 32 |
Superstructure
Komatsu : H135s-1(S/N G61045) : Superstructure
Komatsu : H135s-1(S/N G61045) : Superstructure : -Fan Motor
| 31***99 | Screw | 2 |
| 31***99 | Screw | 4 |
| 34***99 | Shim Washer 85x105x0,3 | 1 |
Komatsu : H135s-1(S/N G61045) : Superstructure : -Filter
| 33***99 | Nut | 1 |
| 44***40 | Aeration Filter, Assembly | 1 |
| 69***89 | Socket Housing | 1 |
Komatsu : H135s-1(S/N G61045) : Superstructure : -Pressure Relief Valve
Komatsu : H135s-1(S/N G61045) : Superstructure : -Return Oil Filter
| 10***65 | O-Ring | 1 |
| 33***99 | Nut | 2 |
| 33***99 | Nut | 1 |
Komatsu : H135s-1(S/N G61045) : Superstructure : Fuel Tank
| 05***40 | Plug 3-Polig | 1 |
| 08***40 | Oil-Level Glass | 1 |
| 08***40 | Quick Disconnect Coupling | 1 |
Komatsu : H135s-1(S/N G61045) : Superstructure : Oil Cooler
| 12***40 | Hinge | 2 |
| 15***40 | Tape Roller | 2 |
| 16***40 | Profiled Joint Ca. 6000 Lg. Bulk Ware, State Length Required | 0 |
Komatsu : H135s-1(S/N G61045) : Superstructure : Oil Tank
| 00***98 | O-Ring | 1 |
| 00***98 | O-Ring | 1 |
| 00***98 | O-Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Superstructure : Platform With Counterweight
| 13***40 | Pin | 2 |
| 21***40 | Bolt Lock | 4 |
| 30***99 | Bolt | 4 |
Komatsu : H135s-1(S/N G61045) : Superstructure : Suction Tank
| 08***40 | Quick Disconnect Coupling | 1 |
| 08***40 | Protection Cap | 1 |
| 20***40 | Plug | 1 |
Undercarriage
Komatsu : H135s-1(S/N G61045) : Undercarriage
Komatsu : H135s-1(S/N G61045) : Undercarriage : -Chain
| 44***40 | Track (H135-47 Links) | 1 |
| 69***25 | Spacer | 4 |
| 69***73 | Track Bush | 94 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : -Hydr. Motor
| 17***40 | Screw Plug | 1 |
| 31***99 | Socket Head Cap Screw | 8 |
| 31***99 | Screw | 14 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : -Top Roller
| 18***40 | Sliding Ring Seal | 1 |
| 30***99 | Bolt | 3 |
| 30***99 | Screw | 2 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : -Track Roller
| 00***98 | O-Ring | 1 |
| 14***40 | Lifetime Seal | 2 |
| 31***99 | Screw Plug | 1 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : -Track Shoes 600 Wide
Komatsu : H135s-1(S/N G61045) : Undercarriage : -Traction Transmission
| 30***99 | Bolt | 24 |
| 30***99 | Bolt | 4 |
| 31***99 | Screw Plug | 2 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : Grease Tensioning Cylinder
| 18***40 | Wiper | 1 |
| 18***40 | V-Seal | 1 |
| 18***40 | Piston Ring | 2 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : Hydraulic
| 00***98 | Half Flanged | 8 |
| 00***98 | Half Flange | 8 |
| 00***98 | Union | 1 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : Idler Assy.
| 00***99 | Top Roller Is Filled With Oil | 0 |
| 00***98 | O-Ring | 2 |
| 18***40 | Lifetime Seal | 2 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : Rotary Joint
| 16***40 | Screw Plug | 4 |
| 20***40 | Screw Plug | 2 |
| 30***99 | Bolt | 4 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : Track Adjuster (Nitrogen)
| 20***40 | Plug | 1 |
| 20***40 | Piston Ring | 2 |
| 20***40 | Piston Ring | 1 |
Komatsu : H135s-1(S/N G61045) : Undercarriage : Undercarriage
| 25***40 | Hv-Washer | 36 |
| 25***40 | Hv-Washer | 48 |
| 30***99 | Bolt 200lg. (Standard) | 72 |
Frequently asked questions
What engine does the Komatsu H135S-1 use?
The Komatsu H135S-1 uses a Komatsu diesel engine. Specific engine model and horsepower ratings vary by configuration and production year. Consult machine's data plate or operation and maintenance manual for exact engine designation.
What is the operating weight of the Komatsu H135S-1?
The operating weight of the Komatsu H135S-1 is approximately 140,000 kg (308,647 lb). Weight varies by configuration, including boom length, stick length, counterweight, and attachment package.
What replaced the Komatsu H135S-1?
The Komatsu H135S-1 was succeeded by the H170S-1 and H215S-1 hydraulic shovels. These later models offered increased power, capacity, and efficiency for modern mining applications.
What H135S-1(S/N G61045) owners discuss
What are the typical hydraulic behaviors and failure modes for the Komatsu H135S-1 series?
Operators report that hydraulic weakness often correlates with engine performance rather than isolated pump failure. A common diagnostic pattern is systems that function normally when cold but become sluggish as hydraulic oil warms, indicating internal leakage in the main pump, control valve, or cylinders. If all functions (boom, arm, bucket, swing, travel) slow simultaneously, the issue typically lies in the shared hydraulic supply, engine speed regulation, or pressure relief settings rather than individual cylinders. Conversely, a single slow function points to circuit-specific issues such as load-holding valves, pilot control inputs, or mechanical binding. The H135S-1 series utilizes a load-sensing hydraulic system; contamination or degraded Komatsu HO hydraulic oil can accelerate wear in the variable displacement pumps and control valves, leading to pressure drops under load.
What are the known powertrain and undercarriage wear patterns for this machine type?
The H135S-1 is a heavy mining shovel with significant operating weight, placing high stress on the undercarriage. Common wear patterns include accelerated track pad wear, roller failure, and idler issues due to the machine's mass and typical mining duty cycles. Final drives are robust but can develop noise or leakage if contaminated. The swing system is a critical wear point; operators monitor for upper structure drift or failure to hold position, which often indicates swing brake wear or mechanical play in the swing bearing. Track tension must be regularly adjusted to prevent loosening or excessive wear. The undercarriage is designed for heavy-duty mining, but continuous operation in abrasive conditions requires frequent inspection of chain links and bushings to prevent premature failure.
What are the common engine quirks and performance issues for the H135S-1 series?
Engine performance issues are a primary concern for the H135S-1. Operators frequently report power loss under heavy digging loads, which may stem from restricted airflow (clogged air filters, charge-air cooler blockage), fuel delivery issues (clogged fuel filters, water in fuel), or turbocharger problems. Overheating is a known risk in dusty mining environments; the cooling package (radiator, hydraulic oil cooler, charge-air cooler) requires regular cleaning to prevent debris packing between heat exchangers. The engine may derate or trigger fault codes if aftertreatment systems are compromised or if coolant levels are low. Fuel quality is critical; extended service intervals or low-quality fuel can accelerate injector wear and reduce efficiency. Regular monitoring of engine RPM under load is essential to distinguish between engine power loss and hydraulic drag.
What are the common electrical and sensor issues reported by owners?
The H135S-1 relies on complex electronic control systems. Common electrical issues include intermittent starting, dashboard failures, and random machine shutdowns, often triggered by faulty sensors or unstable power supplies. Grounding issues are a frequent culprit for erratic sensor readings and control faults. Operators report that a single faulty sensor can trigger multiple warning signals, complicating diagnosis. Wiring harness damage, particularly in areas subject to vibration or abrasion, can lead to intermittent faults. Battery health is critical; a weak battery can cause voltage collapse during starting, leading to misdiagnosis of starter or engine issues. Regular inspection of connectors, grounds, and sensor wiring is recommended to prevent unexpected electrical failures.
What specific items should be checked when buying a used Komatsu H135S-1 (S/N G61045)?
When evaluating a used H135S-1 with serial number G61045, verify the exact engine model and configuration via the serial plate, as specifications vary by production date and regional emissions packages. Check hydraulic system performance cold and hot to identify internal leakage. Inspect undercarriage for wear, track tension, and roller condition. Test all hydraulic functions for speed and power, noting any sluggishness when hot. Verify engine performance under load, checking for power loss, overheating, or fault codes. Inspect cooling package for debris packing and leaks. Check swing system for brake hold and bearing play. Review maintenance records for hydraulic oil changes, filter replacements, and engine service. Confirm condition of electrical components, sensors, and wiring harnesses. Verify machine's history and any major repairs or component replacements.
What are the critical safety-related fixes or inspections for the H135S-1?
Safety-critical inspections include verifying swing brake hold capability to prevent upper structure drift. Check travel system for proper tension and function to ensure stable movement. Inspect all hydraulic hoses and fittings for leaks or damage that could cause high-pressure fluid injection hazards. Verify operation of all safety interlocks, including the safety lock lever and seat switch. Ensure cooling system is functioning correctly to prevent overheating-related failures. Check condition of undercarriage components to prevent track derailment. Verify integrity of electrical system to prevent unexpected shutdowns or control failures. Have dealer verify swing brake adjustment and hydraulic pressure settings.
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 H135S-1(S/N G61045). Related factory variants of the same model family:
H135S-1(S/N G61008)H135S-1(S/N G61027)H135S-1(S/N G61064)H135S-1(S/N G61001)H135S-1(S/N G61007)H135S-1(S/N G61026)H135S-1(S/N G61033)
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