Description

Komatsu PC600-7, PC600LC-7 2007 Workshop Manual

If you have ever been halfway through a hydraulic pump rebuild on a Komatsu PC600-7 and realized the specs in that third-party PDF were for a different model, you know the feeling. That sinking moment when a bolt strips, a seal leaks, or the machine won’t start because the fuel pressure numbers were wrong. This manual ends that. The Komatsu PC600-7, PC600LC-7 2007 Workshop Manual is the factory-issue document. 854 pages, OEM binding, published 2007. It covers both the PC600-7 and PC600LC-7 with serial numbers 20001 and up. No aftermarket re-paginated garbage—this is the original Komatsu file with the revision marks intact.

Engine Diagnostics: Fuel Pressure and Valve Clearance

Section 20—Testing and Adjusting—lays out every measurement you will need on the SA6D140E-3 engine. You get the procedures for measuring engine speed, intake boost pressure, exhaust gas temperature, compression pressure, blow-by, and oil pressure. The fuel circuit section gives you the exact sequence for releasing remaining pressure, measuring fuel pressure, bleeding air, and checking for leakage. Valve clearance adjustment is spelled out with the factory clearance specs. The standard value table for the engine is on page 20-1. Use that table for your baseline. If you rely on a generic spec sheet, you will chase ghosts.

PC600-7 and PC600LC-7: 854 Pages of Factory Specs

This manual does not skip sections. The 01 General section includes specification drawings, a weight table, and the fuel, coolant, and lubricants chart. Section 10 covers structure, function, and maintenance standard across 100+ pages. That includes parts related to the engine, PTO, control and PTO lubrication pump, radiator, oil cooler, power train, final drive, sprocket, swing circle, swing machinery, track frame, recoil spring, idler, carrier roller, track roller, track shoe, hydraulic piping drawing, hydraulic tank and filter, piston pump, line oil filter, control valve, swing motor, center swivel joint, travel motor, valve control, work equipment and swing PPC valve, travel PPC valve, service PPC valve, PPC accumulator, shuttle valve, solenoid valve, boom holding valve, boom lower regeneration valve, hydraulic cylinder, work equipment dimensions, counterweight remover, air conditioner, engine control, machine control system, monitor system, and sensors. That is the complete mechanical and hydraulic anatomy of the machine.

3 Essential Steps Before Touching the Hydraulics

Section 20 lists three steps that keep you alive and your parts intact. First, release remaining pressure in the hydraulic circuit. Second, bleed air from each part. Third, check for leakage in the fuel system. Each step has its own subsection with tool lists and warnings. The manual includes the special function of the monitor panel for confirming pressure release. Skip these steps and you risk high-pressure oil injection injuries or air in the pump circuits that will destroy components. The manual does not let you forget them.

Get the Right Torque from the Standard Value Tables

Section 20 includes two tables: Standard Value Table for Engine and Standard Value Table for Chassis. The engine table lists torques for cylinder head bolts, main bearing caps, connecting rod nuts, and injection pump mounting. The chassis table covers swing motor, travel motor, final drive, and track adjustment hardware. These are OEM numbers from Komatsu, not rounded approximations from an online forum. Page 20-1 shows the table layout. Memorize that page or bookmark it. Using the wrong torque on a swing circle bolt will cost you a bearing replacement.

Does This Manual Cover the SA6D140E-3 Engine?

The PC600-7 and PC600LC-7 mount the SA6D140E-3 engine. This workshop manual includes all engine-related testing: measuring speed, fuel pressure, compression, blow-by, valve clearance, and belt tensions. It also covers handling the fuel circuit, adjusting the engine speed sensor, and troubleshooting engine codes (E117, E118, etc.). What it does not include is the internal engine disassembly and overhaul procedures—Komatsu publishes a separate 140-3 Series Engine Shop Manual for that. So if you need to pull pistons or replace bearings, get that engine manual. But for every adjustment and diagnostic procedure you can do with the engine in the machine, this manual has you covered.

Understanding how the mechanical power flows through the Komatsu PT0 and final drive is critical. The drivetrain architecture uses a design similar to a Manual Transmission in its basic gear reduction principles, but the specific shim adjustments and bearing preload specs are unique to these machines. The manual provides the exact measurements for swing circle bearing clearance and track shoe tension. For more on manual transmission theory, check Manual Transmission. These external resources help you grasp the fundamentals, but the factory specs come from this document.

Other models in the Komatsu lineup share some hydraulic and structural principles. If you work on smaller machines, the Komatsu WA65-5 WA70-5 WA80-5 2005 Workshop Manual covers wheel loaders with similar diagnostic logic. For backhoe-type excavators, the Komatsu WH609-1E0 WH613-1E0 WH713-1E0 WH714H-1E0 WH716-1E0 Workshop Manual is a relevant companion. And if you need a lighter excavator manual, the Komatsu PW95R-2 Workshop Manual – 520 Pages of Factory Specs provides a shorter but equally OEM set of procedures.

One more thing: the manual contains a complete troubleshooting section with error codes E112 through E317 (electrical system) and failure codes (mechanical). Each code has a table with probable causes, inspection steps, and corrective actions. The connector location chart and electrical circuit diagrams are in that section. Do not replace a solenoid without first checking the code table.

Is this manual specific to the PC600-7 and PC600LC-7 models, or does it cover other variants?

Yes, it is specific to these two models. It covers both the standard PC600-7 and the long-track PC600LC-7, serial numbers 20001 and up. No other models are included.

Do I need a separate engine manual for a complete engine rebuild?

The manual covers engine testing and adjustment in Section 20, including fuel pressure, valve clearance, compression, and blow-by measurements. However, for internal engine disassembly, overhaul, and component replacement (pistons, liners, bearings, cylinder head), Komatsu requires the separate 140-3 Series Engine Shop Manual. This manual references that engine manual on page 00-1. So if you are doing a full rebuild, get both. But for machine-level engine diagnostics and adjustments, this manual has everything you need.

That is the truth about this manual. 854 pages, OEM data, 2007 publication, and full coverage of the Komatsu PC600-7 and PC600LC-7. Click the button to access the factory manual.