Description

Komatsu PC200-7, PC220-7, PC200LC-7, PC220LC-7 2005 Technical Manual

I have seen more operators skip a fuel filter change and then wonder why the injectors starve. That mistake costs you a pump rebuild. If you are turning wrenches on a Komatsu PC200-7, PC220-7, PC200LC-7, or PC220LC-7, the Technical Manual from 2005 is what keeps you from guessing. 573 pages of factory data, not some third-party rewrite that leaves out the shim thickness for the control valve. Page 26 has the fuel, coolant, and lubricant specs — don’t touch a drain plug without it.

What This Manual Covers

Section 01 GENERAL gives you the dimension drawings, weight tables, and fluid capacities for all four models. Section 10 breaks down every hydraulic component: the CLSS, the swing motor, the travel junction valve, the boom drift prevention valve. If you need to understand how the self pressure reducing valve works before you pull the pump, that chapter has the cross-sections. Section 20 TESTING AND ADJUSTING is where you live — standard value tables for engine and chassis parts, adjustment of valve clearance, measurement of compression pressure, and the whole troubleshooting tree with service codes from E101 to E206.

Torque Specs and Fluid Capacities

You need the charge pressure for the hydraulic circuit? It is in the standard value tables. The manual lists the inspection and adjustment of pump PC control circuit oil pressure and pump LS control circuit oil pressure — two circuits that get misdiagnosed constantly when someone chases a slow swing. Fuel injection timing adjustment procedure is written out stepwise. Valve clearance adjustment spec is there. Do not trust aftermarket data that says “tighten until snug.” Snug is not a torque value.

Does This Manual Cover the Electrical System?

Yes — and it covers it properly. The electronic control system section includes the multi-monitor system and the 7-segment monitor system. Connector location charts, pin number connection tables, and service code troubleshooting for every code from E112 (short-circuit in wiper motor drive) to E206 (travel speed shifting solenoid). If you are chasing a code E203 on a swing brake solenoid, the manual gives you the circuit diagram and the resistance check procedure. I have wasted hours on electrical gremlins because someone lost the factory wiring diagram. This manual pins it down.

3 Reasons to Choose OEM Documentation

First, the specs are stamped by Komatsu — the same ones the dealer uses. Second, the step-by-step testing procedures are written for real tools, not theoretical bench setups. Third, the troubleshooting section is organized by service code and failure code, not by guesswork. Aftermarket manuals often combine the PC200-7 and PC220-7 data into one blob and leave out the LC variants’ track dimensions. This manual treats each model separately. You get the correct boom drift prevention valve adjustment for the PC220LC-7 without flipping back and forth.

Hydraulic System: CLSS and Pressure Adjustments

The CLSS (Closed-Loop Load Sensing) section explains how the pump compensates. Section 10 has the hydraulic pump layout drawing and the control valve breakdown for both standard and LC versions. The testing section covers inspection and adjustment of hydraulic oil pressure in the work equipment, swing, and travel circuits. You also get the procedure for releasing remaining pressure in the hydraulic circuit before you crack a line. That is a safety step a lot of guys skip — then get a face full of hot oil. The manual has the air bleeding procedures for various parts after you reassemble.

Who Needs This Manual

If you are a home garage enthusiast who bought a PC200-7 to clear land, you need this to avoid blowing a travel motor seal because you didn’t set the stroke regulation correctly. If you are a shop owner with a PC220LC-7 that keeps throwing a service code E115 (abnormal windshield wiper motion), you need the electrical schematic to trace the short. For a professional mechanic, this manual saves the time you would waste calling the dealer for a valve clearance spec. The standard value tables are right there. 573 pages cover everything from the track shoe tension inspection to the emerency escape from failure in the engine control system.

Source Validity: Factory Print, Not a Knockoff

This is the original OEM PDF from Komatsu, published 2005. The file name is KOMATSU_PC200-7-PC200LC-7-PC220-7-PC220LC-7_2005_Technical_Manual_en-35313018187.pdf. No reprint, no third-party summary. The dimensions, torque values, and electrical connector numbers are exactly what the factory issued. If you use aftermarket manuals, you risk getting a generic hydraulic pressure spec that does not match the LC models. This one has the PC200-7, PC200LC-7, PC220-7, and PC220LC-7 weight tables and dimension drawings separated. That matters when you order undercarriage parts.

FAQ

Does this manual cover the Komatsu SAA6D107E-1 engine?

Yes. The engine control section, fuel injection timing adjustment, valve clearance specs, compression pressure measurement, and blow-by pressure test all apply to that engine. The standard value table for engine-related parts includes the specific numbers.

Can I use this manual for a PC200-8 or PC220-8?

No. The -7 series has different hydraulic and electronic systems. Using this manual on a -8 model will give you wrong pressure specs and wiring diagrams.

Are the wiring diagrams in color?

The original PDF is monochrome, but the connector pin numbers and circuit labels are clear. Wire color codes are given in text (e.g., red/black stripe).

How many pages cover the troubleshooting section?

The manual does not separate troubleshooting by page count; it runs through the entire section 20. The service code tables and connector charts span dozens of pages including the electrical circuit diagrams.

If you are working on a Komatsu PC200-7, PC220-7, PC200LC-7, or PC220LC-7, stop relying on scribbled notes or online forums. Get the factory data that matches your machine. Access the Factory Manual from AutoRepairManuals and keep it on your tablet at the machine. You will thank me when you are setting valve clearance on a Saturday morning.

Related Manuals

• Komatsu PC-7 Series Hydraulic Excavator Training Manual
• KOMATSU PC200-7 PC220-7 Electrical Troubleshooting Manual
• DEMAG KOMATSU H285 S Hydraulic Calibration

External resources: Manual Transmission and Manual Transmission for general technical reference.