Description

Komatsu 110 Series 1996 Workshop Manual

I’ve seen too many guys ruin a good engine because they grabbed some aftermarket PDF that guessed torque values. A cylinder head bolt that’s 20 lb-ft off? That’s a blown head gasket and a wasted weekend. This Komatsu 110 Series 1996 Workshop Manual stops that cold. It’s the same binder that sat in the service manager’s office at the dealer. Factory specs for the 110 Series diesel engine — not a copy, not a cleaned-up scan, but the original OEM print with all the revision marks. That matters.

Every time I see a DIY guy try to set valve clearance without the factory numbers, I cringe. The 110 Series has a specific sequence and a specific clearance — intake and exhaust are different. Section 12 in this manual gives you the exact procedure for adjusting valve clearance, including the tool list. Want to measure compression pressure? Page 12-001. Not a generic range, but the actual minimum and standard values for this engine. That’s the difference between a rebuild that lasts and one that comes back in 500 hours.

Testing and Adjusting Data: What You Actually Get

Section 12 of this Workshop Manual covers testing and adjusting for every major system: intake/exhaust, engine body, lubrication, fuel, cooling. It includes the fuel injection pump calibration data — and that’s the kind of stuff aftermarket reprints edit out because it’s too much work to scan. Here you get the exact regulator valve settings, oil pump clearance limits, and the blow-by pressure test procedure. You also get the run-in standard and performance test criteria. That means you can verify your rebuild meets factory acceptance before you put the machine back in service.

Torque tables? Foreword section has the standard tightening torque for bolts, nuts, and special fasteners. Plus the conversion table for metric to imperial. I run a 6-bay shop in San Antonio, and I still use that conversion table when I’m working on older Japanese iron.

Disassembly and Assembly: Real Steps, Not Generic Advice

Section 13 walks through overall disassembly and assembly of the whole engine, then breaks down each component: Manual Transmission”>Manual Transmission? No, this is engine-only, but the same logic applies — you need the sequence. Turbocharger disassembly, oil pump, water pump — each one has its own subsection with step-by-step order and special tool callouts. The manual tells you when you need a puller, when you can use a press, and when you need to heat or cool a part. Follow it, and you don’t waste time fighting a stuck gear.

That’s where most guys get burned.

Komatsu 110 Series 1996 Workshop Manual: What the Maintenance Standard Covers

Section 14 (Maintenance Standard) is the most dog-eared part in my copy. It gives wear limits and reject criteria for every critical part: cylinder head, valve and valve guide, rocker arm, push rod, tappet, cylinder liner, cylinder block, crankshaft, camshaft, piston assembly, connecting rod, timing gear, flywheel. You measure your part, compare it to the table, and decide whether to reuse or replace. No guessing. If the crankshaft journal is past the limit, you scrap it. If it’s within spec, you polish it and move on. That saves money and keeps the engine safe.

Source Authenticity: OEM vs. Aftermarket Documentation

I don’t trust aftermarket documentation on principle. I’ve seen aftermarket manuals that use generic torque values for engines that look similar on the outside but have different metallurgy inside. The 110 Series has a specific cylinder head bolt tightening pattern and torque — get it wrong and you warp the head. This manual is from Komatsu’s own press, dated 1996, with revision marks that show every update. 301 pages, no missing sections, no blurred diagrams. That’s why I tell customers to buy the factory manual if they want the job done right the first time.

7 Systems Covered in Detail

The manual covers these systems: intake/exhaust (turbocharger and after-cooler), engine body, lubrication (with oil filter bypass and sensor details), fuel (injection pump, governor, feed pump, nozzle, filter, cut solenoid), cooling (water pump, thermostat), electrical (wiring diagram, alternator, starter, intake air heater, pressure switches, relays), and accessory (air compressor). Each system has a function explanation, a chart, and then the testing or disassembly procedures. That’s over 11 major sections of nuts-and-bolts info.

Who Needs This Manual?

If you own equipment with a Komatsu 110 Series diesel engine — whether it’s in a loader, excavator, or industrial power unit — this Workshop Manual is your insurance policy. Home garage guys who want to rebuild their engine without sending it to a dealer. Small fleet owners who do their own maintenance. Even experienced techs who need the OEM numbers for warranty work. The manual is written for people who already know the basics but need the factory specifics to finish the job.

FAQ

Does this manual include wiring diagrams?

Yes. Section 11 has the full wiring diagram for the electrical system, including the starting motor, alternator, intake air heater, and all switches. It’s a single-line diagram with wire colors and connector numbers.

What torque spec is used for cylinder head bolts?

The standard tightening torque table in the Foreword covers all bolt grades. For the cylinder head specifically, you must follow the sequence in Section 13. The manual gives both the torque value and the angle of rotation for the final tightening step.

Is this a reprint or a scanned copy?

This is the original OEM print from Komatsu, 1996. No aftermarket editing, no missing pages. 301 pages, including revision marks and the list of revised pages. You get the same manual a Komatsu dealer would hand a technician.

Can I use this for a Komatsu 110 Series engine in a different machine?

The 110 Series is a specific engine family — the manual covers the bare engine (specifications, performance curves, dimensions). If your machine uses that engine, the internal specs (bearings, pistons, cylinder liner, valve train) are identical. The manual does not cover chassis or transmission components. For transmission info, see Manual Transmission”>Manual Transmission references elsewhere.

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Stop chasing torque values from forum posts or aftermarket PDFs. Get the real thing. Access the Factory Manual now and have the specs on your bench before you touch a wrench.