Description

Komatsu PC160-6k, PC180LC-6k, PC180NLC-6k 2001 Workshop Manual

I’ve been turning wrenches for 28 years, and I can tell you the difference between a manual that gets the job done and one that gets you into trouble. Aftermarket manuals? They get you close, but close doesn’t cut it when you’re torquing head bolts on a SA4D102E engine. The Komatsu PC160-6k, PC180LC-6k, PC180NLC-6k 2001 Workshop Manual is the real deal – OEM factory print. No guesses. 692 pages of what you actually need.

Take the fuel specifications. Section 01 (page 01-13) gives you the exact fuel, coolant, and lubricant grades, capacities, and change intervals. You won’t find that level of detail in a PDF stitched together from three different sources. The manual tells you which SAE viscosity to run in San Antonio summer heat versus a Michigan winter. That matters.

You want torque values? The Foreword includes the standard tightening torque table. That table is where most aftermarket reprints skip a decimal or round off a number. Here it’s straight from Komatsu’s drawing board. If you’re rebuilding a swing circle or final drive, those values keep you out of failure territory.

Komatsu PC160-6k, PC180LC-6k, PC180NLC-6k 2001 Workshop Manual: What’s Inside

Six major sections: General (01), Structure and Function (10), Testing and Adjusting (20), Disassembly and Assembly (30), Maintenance Standard (40). Each one is a breadcrumb trail back to factory specs. Section 10 alone covers the hydraulic circuit diagram, CLSS, swing motor, travel motor, and the entire electronic control system. For a machine with as many solenoids and sensors as these 6K series, you need the original pin-out diagrams, not a sketch from someone’s notes.

If you’re wondering how the work equipment swing PPC valve interacts with the safety lock valve, it’s all laid out in the Structure and Function chapter. No ambiguity.

Torque Specs: Why the Foreword Matters

Every Komatsu shop manual includes a section called Standard Tightening Torque. This one has it. Bolts, nuts, and plugs for the entire machine – hydraulic fittings, engine mounting, track frame. Use a different spec and you’ll either strip threads or crack a casting. The foreword also covers hoisting instructions, coating materials, and electric wire codes. Read it before you lift the cab or splice into a harness.

One thing that drives me crazy: people skip the conversion table at the end of the foreword. It’s there so you can go from kgf·cm to lb·ft without guessing. Use it.

3 Sections That Cover the Engine and Fuel System

First, Section 01 gives the fuel, coolant, and lubricant data. Second, Section 10 details the engine-related parts – radiator, oil cooler, and the fuel & hydraulic tank. Third, Section 20’s troubleshooting charts for governor and pump controller (E mode) go deep into fuel-related service codes like E-308 (fuel control dial input abnormality) and E-306 (feedback potentiometer). That’s not generic; that’s Komatsu’s own diagnostic logic.

If you’re hunting a no-start or low-power condition, the sequence of events charts in the troubleshooting chapter (page 20-1) will keep you from replacing parts that aren’t broken.

Testing and Adjusting: Where the Hours Are Saved

Section 20 is the big one – nearly a third of the manual. It includes tables of judgment standard values, standard electrical part values, and step-by-step procedures for adjusting engine speed sensor, governor motor stroke, TVC and LS valve output pressures, and track shoe tension. You also get the full procedure for releasing hydraulic circuit residual pressure safely. That’s a safety item I never skip.

The troubleshooting section alone covers communication abnormality (N mode) and the governor/pump controller (E mode) with twelve detailed sub-procedures: E-1 through E-12. Each one lists the symptoms, likely causes, and test points. No flipping through aftermarket binders hoping for a match.

Troubleshooting the Governor and Pump Controller

These excavators use an electronic governor system that talks to the pump controller. When the controller LED stays off, you get E-1 – power source issue. When the fuel control dial reads wrong, E-308. The manual explains exactly how to verify harness continuity and check sensor resistance. I’ve seen guys throw a new controller at an E-317 (motor drive disconnection) when the problem was a chafed wire at the connector. That’s money down the drain.

For older machines, you might also need the Komatsu PC160-6k PC180LC-6k 1997 Service Manual if the serial number falls below the cutoff. The 2001 version covers K32001 and up for PC160-6k, K34001 and up for the LC/NLC models. Verify your chassis number before buying.

If you’re running a mixed fleet, the Komatsu PC160-6k to PC200EL-6K Operators Manual | 266 Pages is a lighter reference for daily operation and basic checks. For heavy repairs, keep this workshop manual on the bench.

For the final drive assembly, understanding the basic principles of a Manual Transmission helps when you’re adjusting backlash in the travel motor output gear. The manual covers the entire power train – swing machinery, track shoe tension, and recoil spring specs – so you don’t have to guess.

And if you work on wheel loaders as well, the Komatsu WA65-5 WA70-5 WA80-5 2005 Workshop Manual follows the same OEM structure. Trust the format that Komatsu publishes.

One more external reference: the hydromechanical principles of a Manual Transmission apply to the planetary drives inside the final drive assembly. Knowing gear ratios and torque multiplication helps when you’re diagnosing travel deviation. The manual has a dedicated test for that – Travel Deviation – under Section 20.

FAQ

Does this manual include electrical wiring diagrams?

Yes, Section 10 includes the electrical circuit diagram for E mode and the machine monitor system.

What specific troubleshooting codes are covered in Section 20?

Section 20 covers service codes from N-1 (communication abnormality) and E-1 through E-12 for the governor/pump controller system. That includes E-306 (feedback potentiometer abnormality), E-308 (fuel control dial input abnormality), E-317 (motor drive disconnection), E-318 (motor drive short circuit), E-315 (battery relay output short circuit), E-316 (motor step out), and the complete diagnostic procedures for engine starting, irregular speed, lack of output, and failure to stop. Each code has its own judgment table and step-by-step test sequence using connector pin numbers and wiring diagrams.

If you need to pull a swing motor, diagnose an EPC solenoid, or just verify the fuel pressure specs, this is the document that keeps your work on the right track. Don’t rely on a third-party guess. Access the Factory Manual.