Description

Komatsu PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, PC250LC-6 1996 Service Manual

If you are wrenching on a Komatsu excavator from the Dash-6 series, you already know that guessing costs you hours and parts. I have had customers bring me machines with blown seals from a guy who thought “tight enough” meant the same thing as the torque spec. It does not. This is the 1996 factory service manual for the PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, and PC250LC-6. 711 pages of what Komatsu actually wrote for their own techs. No aftermarket rephrase, no condensed junk. You get the real content.

First thing you need to check: serial number range. This manual covers PC200-6 from A82001 up, PC200LC-6 A82001 up, PC210LC-6 A82001 up, PC220LC-6 A82001 up, and PC250LC-6 A82001 up. If your machine falls inside those numbers, this document will match every nut and bolt. Page 1 lists those serial numbers so you can confirm fitment before you pull a single wrench.

What the 711 Pages Actually Cover

Open the contents on page 2 and you see five major sections: General, Structure and Function, Testing and Adjusting, Disassembly and Assembly, Maintenance Standard. The General section alone gives you fuel, coolant, and lubricant specs. If you have ever poured the wrong hydraulic oil into a CLSS system, you know how fast that goes bad. The manual’s FUEL, COOLANTS AND LUBRICANTS table (in the 01 GENERAL chapter) tells you exactly what goes in each tank. No guesswork.

Testing and Adjusting: Where the Real Work Gets Done

Section 20 is the heart of this manual. It starts with a Judgement Standard Value table and a Standard Value table for electrical parts. You need to measure intake manifold pressure? There is a procedure for that. Measuring blowby pressure? Page references inside the section guide you. I have used these exact steps to track down fuel restriction problems on a PC200LC-6 that was losing power under load. The manual tells you to measure fuel filter inlet restriction first, then work through the engine back pressure test. Saved me three hours of chasing a phantom injector issue.

Also in section 20: testing and adjusting hydraulic pressure in the work equipment, swing, and travel circuits. If your PC210LC-6 is drifting when you hold the boom up, you need the PPC valve output pressure test. The manual walks you through releasing remaining pressure in the hydraulic circuit before you crack any line. Safety first.

Fuel System and Engine Specs – OEM Data Only

The Engine chapter inside Structure and Function covers engine-related parts, radiator, oil cooler, aftercooler. You get the fuel system layout, governor motor lever stroke adjustment, and a full troubleshooting tree for the engine throttle controller system (E mode). There is a judgement table for engine throttle controller and engine related parts – E-1 through E-7 fault codes with step-by-step checks. If you see [E3:08] for fuel control dial input value abnormality, this manual tells you exactly which wire to test. No third-party rewrites.

Why Aftermarket Manuals Don’t Cut It

I have seen aftermarket PDFs that claim to cover these machines. They use generic torque values and leave out critical safety warnings. This manual is a direct scan of the original Komatsu print from 1996. The copyright belongs to Komatsu America International Company. It includes the original list of revised pages with mark indicators – something no reprint bothers to include. When the manual says “Replace page 00-2-1 with the new revision”, you know exactly what changed. Aftermarket reprints do not give you that.

Does This Manual Cover the PC220LC-6 Swing Motor?

Yes. Section 10 includes the swing machinery, swing motor, swing circle bearing clearance test, and swing PPC valve adjustment. If you need to test the LS valve output pressure or the TVC valve output pressure, the procedures are in section 20. The manual also covers the center swivel joint, travel motor, and track frame recoil spring. For electrical work, it includes the complete electrical circuit diagram and electronic control system section.

Torque Specs and Clearances: Factory Standards

Every fastener in the hydraulic pump, control valve, and final drive has a torque value from Komatsu. The Disassembly and Assembly section (30) gives you tightening sequences and clearance limits. You want to know the correct track shoe tension? The Testing and Adjusting section has a procedure with a measurement chart. I keep a copy of this manual in a waterproof binder next to my pressure washer. It gets oily, it gets read, it gets used.

Related manuals that pair well with this one:

• Komatsu PC200-6 Series Wiring Diagram – 33 Pages OEM
• Komatsu PC200LC-6 2000 Workshop Manual – 540 Pages
• Komatsu PC200-6 PC220-6 1997 Service Manual – 560 Pages of Factory Specs

For background on how hydraulic systems interact with engine controls, check out Manual Transmission principles (applies to travel motor control) and Manual Transmission design for understanding torque multiplication in the final drive.

How many pages is this manual and what year is it?

711 pages, 1996.

Does it include the PC200LC-6 and PC210LC-6 hydraulic circuit diagram?

Yes. Section 10 has the full hydraulic circuit diagram, CLSS, control valve, and all PPC valve sections. The electrical circuit diagram is also in section 10. If you need to trace a solenoid valve or the safety lock valve, the schematics are there with connector pin numbers on the connection table. I have used those diagrams to find a bad ground on a PC210LC-6 that was losing the EPC solenoid output. The manual also includes the machine monitor system – that is the panel display that tells you which error code triggered. Without those pin assignments, you will spend half a day probing blindly.

You can buy this manual as a digital access. Print it, put it in your shop. Access the Factory Manual and keep the original Komatsu data on your bench.