Description

Clark-hurth CMP20, CMP15 Service Manual

Clark-hurth CMP20, CMP15 Service Manual – I have been turning wrenches for 28 years. In that time I have seen aftermarket paper that calls itself a service manual and it is not worth the disk it is printed on. This one is different. 466 pages of CLARK-dealer-grade material, the kind that the factory intended for their own techs. You get the actual build data for the CMP15 and CMP20 lift trucks, not a generic rehash. If you are pulling a 4G63 LPG engine or the 4TNV88 diesel, you need the numbers that came off the assembly line. This is that document.

Engine Overhaul Data (LPG and Diesel)

Section 10 covers the MMC 4G63 LPG engine from front to back. Valve clearance adjustment, timing belt removal and installation, ignition timing, idle speed, and the LPG carburetor system. Section 16 handles the diesel Tier 2 (4TNV88/94L) with its own safety precautions, injection pump governor, and compression pressure troubleshooting. You get the periodic maintenance schedule for both. No guesswork on which fuel system part goes where – the diagrams show the exact routing.

Torque Tables: Why This Manual Beats Aftermarket Copies

Aftermarket torque charts are a gamble. This manual has the official standard tightening torque table in section 00-04 plus separate dedicated torque lists for the diesel engine (section 11 – Tightening Torque for Bolts and Nuts). And the LPG engine has its own tightening torque specs in section 10-02. I have seen guys snap head bolts using a generic chart. Do not be that guy. Use the factory numbers. Torque specifications are only reliable when they come from the same source that built the rig.

3 Sections You Will Use Before Lunch

If you are like me and you hate flipping through 400 pages to find the one number you need, these three sections will save your morning. First: Section 01-03 – Coolant / Fuel / Lubrication. This tells you what goes in every hole. Second: Section 01-05 – Tightening Torque (the quick reference for the whole machine). Third: Section 20 – Transaxle structure and maintenance. That covers the hydraulic circuit, brake adjustment, and the clutch assembly. Three sections, half the work done.

Does the Manual Cover the Transaxle Rebuild?

Yes. Section 20 is a full transaxle teardown and assembly. You get the pinion gear shimming procedure, differential setup, wheel end final assembly, and the clutch assembly. It also includes the hydraulic circuit diagram and service brake adjustment. If you are rebuilding the drive unit of a CMP20, you need the stator support removal procedure from the adapter plate – it is in section 20-02. This is not a generic Manual Transmission overview; it is model-specific to the Clark-hurth transaxle.

Source Authenticity: CLARK Dealer-Only Document

Look at the copyright page: “Intended for CLARK dealers only – Do not sell or distribute.” That is the stamp of a real OEM document. This is not a third-party compilation. Every page is scanned from the original SM-710 service book. You get the revision history (section 00-01) showing exactly which pages were updated. If you want to compare this with the Manual Transmission section in a generic manual, good luck – they will not have the Clark-specific torque sequences.

FAQ

Is this manual for both the CMP15 and CMP20 models?

Yes. The cover says CMP15-20sD and CMP15-20sL. Rated capacity 1500-2000 kg. The transaxle and engine sections apply to both, with separate chapters for the LPG and diesel engines.

Does it include wiring diagrams?

Section 16-09 gives the electric wiring diagram for the diesel engine, plus a precaution on electric wiring. The LPG engine has its own electric component inspection in section 10-05.

What if I need the charge pressure for the hydraulic circuit?

Section 20-01 contains the hydraulic circuit diagram and service maintenance specs. The exact charge pressure is listed in the specification table within that chapter. You will find it between the brake adjustment and the converter housing removal steps.

Can I print this PDF?

The file is a standard PDF with 466 pages. Print what you need for the workbench. The scan quality is high enough to read the torque tables clearly.

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Access the Factory Manual – get the PDF, put it on your tablet or print the pages you need. You will have the same information a CLARK dealer tech has. That is worth the price of admission right there.