Komatsu PW130ES-6K 2001 Service Manual – 643 Pages OEM Specs

Description

If you’re about to tear into a PW130ES-6K and you don’t have factory torque specs, you’re gambling with your time and the machine. I’ve seen too many guys strip threads on swing circle bolts because they trusted a reprint. This 2001 Komatsu PW130ES-6K Service Manual – 643 pages – is the real deal. It’s what the factory techs used. It tells you exactly how to test, adjust, disassemble, and reassemble every system. No guesswork.

Structure and Function: Hydraulic Schematics You Can Trust

Section 10 – Structure and Function lays out every hydraulic circuit: main pump, LS valve, PC valve, control valve, swing motor, center swivel joint, and travel motors for both 20 km/h and 30 km/h speed specs. Each travel motor has its own hydraulic schematic. The manual also covers the PPC pumpless system, the CLSS, and the engine control system. If you need to understand how the fixed throttle valve works or where the priority valve fits, this is where you start.

Testing and Adjusting: The Section That Prevents Comebacks

Section 20 – Testing and Adjusting is the heart of the manual. Need the charge pressure for the LS valve? Page 20-1 walks you through checking PC valve output pressure, LS differential pressure, pilot circuit pressure, and solenoid valve output. It includes standard value tables for electrical parts and tools required. I’ve used this section to trace a hydraulic drift issue on a boom cylinder – the manual tells you exactly where to measure oil leakage and how to release remaining pressure in the circuit. That’s safety, plain and simple.

3 Systems That Demand Factory Calibration

The overload warning device, breaker mode hydraulic performance (both main valve bypassed and via main valve), and the travel speed/swing brake/suspension lock solenoid valve all require specific pressure settings. This manual gives you those numbers. Section 20 also covers testing transmission clutch control circuit – the 30 km/h spec uses a clutch control circuit that is detailed with component positions. Komatsu’s design for the front and rear travel motors includes a Manual Transmission that requires careful shim adjustment – page 30-1 covers the disassembly procedure.

What’s Inside the Standard Tightening Torque Table?

Page 01-1 of the manual lists the standard tightening torque for bolts and nuts, plus a conversion table from metric to imperial. The table applies to all structural fasteners unless otherwise noted. Section 40 – Maintenance Standard then provides specific values for each component – swing circle, axle, transmission, clutch ass’y, and suspension lock cylinder. You don’t guess. You torque to factory spec.

Disassembly and Assembly: Sequence Matters

Section 30 – Disassembly and Assembly covers the full teardown of the swing machinery, undercarriage, transmission, axles, hydraulic cylinders (boom lift, arm, bucket, boom adjust, outrigger, dozer blade), and the work equipment for both one-piece and two-piece boom configurations. The clutch control circuit (30 km/h spec only) is essentially a Manual Transmission control valve setup – the hydraulic schematic in section 10 shows it. Don’t skip the hoisting instructions or coating materials list at the front of the manual – they’re there for a reason.

Why OEM Documentation Beats Aftermarket Reprints

Aftermarket manuals often redraw schematics, omit safety notices, or transpose torque values. This PDF is a direct scan of the original Komatsu shop manual printed in Belgium in 2001. Every page has the factory mark revision system – the list of revised pages shows which pages supersede earlier versions. You get the same information that Komatsu factory techs had. Cross-reference with the Komatsu PW130ES-6K Operators Manual – 271 Pages of Factory Procedure for operating instructions and daily checks. For earlier model year specifics, see the Komatsu PW130ES-6K 1998 Workshop Manual – Factory Specs. If you work on heavy excavators, the Demag Komatsu H 285 S Service Manual – 544 Pages of Factory Specs covers a larger machine but shares many hydraulic principles.

Maintenance Standard: What to Check Before Reassembly

Section 40 – Maintenance Standard specifies wear limits, clearance tolerances, and inspection criteria for every component – swing circle bearing clearance, travel motor relief pressure, brake and steering circuit pressures (Italian specification gear pump), and accumulator pre-charge. This is where you find the final acceptance specs after a rebuild.

Does this manual cover the PC and LS valve adjustments?

Yes. Section 20 provides step-by-step procedures with pressure specs.

Are wiring diagrams included for the engine control system?

The manual includes an ELECTRIC WIRE CODE table and covers the machine monitor system, mode selection switches, and overload warning device. Wiring schematics are part of the structure and function section.

What type of hydraulic schematic is provided?

The manual includes individual hydraulic schematics for each travel motor (front and rear) for both 20 km/h and 30 km/h speed specifications. It also provides external views of the control valve and the CLSS system. The schematics are factory original, not redrawn by a third party, so every port and line label matches the actual machine. This is critical when diagnosing a circuit that won’t build pressure – you trace it from the pump through the LS valve, PC valve, fixed throttle valve, and into the control valve. Without the factory schematic, you’re guessing which line is which.

Does this manual include torque values for the swing circle?

Yes, the standard tightening torque table and specific values for swing circle bolts are listed in the Maintenance Standard section.

• Komatsu PW130ES-6K Operators Manual – 271 Pages of Factory Procedure
• Komatsu PW130ES-6K 1998 Workshop Manual – Factory Specs
• Demag Komatsu H 285 S Service Manual – 544 Pages of Factory Specs

Access the Factory Manual from AutoRepairManuals right now – your PW130ES-6K will thank you. No reprints, no aftermarket shortcuts – just the original PDF from 2001 with 643 pages of factory data.