Description

Clark-hurth CMP50, SF35, SF45, CMP40 2004 Service Manual

You need a cylinder head torque spec and the manual on your bench says “tighten to specification” with no number. That is how head gaskets fail and trucks get towed. Clark-hurth CMP50, SF35, SF45, CMP40 2004 Service Manual is a factory print – 1038 pages, published June 2004 by Clark Material Handling Asia. It gives you the actual numbers, not a photocopy of a photocopy. OEM torque tables, fuel system diagrams, and the safety procedures that keep you from getting crushed. Every page is original, part number 8034926, manual SM-704 Rev.2.

Engine Overhaul: Cylinder Head and Fuel System

Section 10 covers the 1004-4 diesel engine – cylinder head assembly, pistons, connecting rods, crankshaft, timing case, and fuel system. Section 12 goes into the 1004-42 engine with the same depth. Valve tip clearances, rocker assembly, piston cooling jets, atomisers, and the Lucas DP 200 injection pump. Page 10-10-10 walks through the fuel system including the cold start advance unit and fuel lift pump. If you are rebuilding a head, you get the valve spring specs and guide measurements. Compare this with the larger models in the CLARK SF50 SF75 CMP50 CMP75 2004 Service Manual for differences in capacity ratings.

What Torque Values Are Listed?

Standard tightening torque lives in section 00-04 with measurement conversions. Section 12-02 lists special torque tensions for engine mounts, cylinder head, connecting rods, and main bearings. A lot of aftermarket manuals skip the connecting rod bolt torque – this one does not. Page 01-05-10 has the tightening torque table. For the 1004-42 engine, the standard torque tensions are in section 12-01. If you are working on an older revision, check the CLARK SF35 SF45 CMP40 CMP50 2004 Service Manual to see if there were updates to the torque specs. Every value is in foot-pounds or inch-pounds where appropriate.

3 Reasons to Use Factory Documentation

First, the torque values are verified. You will not find “tighten to specification” here – only foot-pounds and sequence. Second, the safety section 00-03 covers general precautions, preparations for work, and cautions during operation. That includes jacking points, battery disconnect, and handling heavy components. Third, the wiring diagrams and component locations are exact – not redrawn by a third party. One wrong wire on a forklift can cost you a controller. Unlike generic Manual Transmission repair books, this is model-specific for the SF35, SF45, CMP40, and CMP50. You get the actual Clark Material Handling release.

Safety Section: Preparations for Work and Cautions

Do not skip section 00-03. It tells you how to properly lift the machine, block the wheels, and handle the fuel system. The cautions during operation section covers exhaust fumes, hot surfaces, and hydraulic pressure. This is not a generic safety sheet – it is written for these specific models. If your shop has a manual transmission Manual Transmission in these trucks, section 12-12 covers the flywheel and housing – including the rear oil seal and pilot bearing. That keeps oil off the clutch disk and avoids a second teardown.

Periodic Maintenance and Load Capacity Charts

Section 01-02 has the capacity charts – rated capacity 3500~5000 kg, so you know what each mast configuration can handle. Section 01-04 gives periodic maintenance intervals with lubrication points, coolant checks, and fuel filter changes. Section 01-03 has the coolant, fuel, and lubrication chart. You need the correct oil viscosity for San Antonio summers – this manual lists it. For transmissions, the Spicer Clark-hurth HR Service Manual – Factory Specs for Heavy-Duty Transmission covers the heavy-duty units if you are swapping in a different driveline.

Get the Right Specs for the 1004-4 and 1004-42 Engines

Section 10-14 lists the special tools needed for engine work. Section 10-15 gives preventive maintenance periods. Section 12-01 includes engine identification – you need to verify which engine variant you have before ordering parts. The cylinder liner and bore specs are in section 12-07. If you are assembling a short block, you need the piston ring gap and connecting rod big-end bearing clearances. They are all in sections 12-04 and 12-05. Do not trust a generic chart – use the factory numbers.

Does this manual cover the SF35 and SF45 models?

Yes, it covers SF35, SF45, CMP40, and CMP50.

What torque values are included for the cylinder head?

The manual includes standard tightening torque in section 00-04 and special torque tensions in section 12-02. For the 1004-4 engine, the cylinder head bolt torque is listed in the cylinder head assembly procedure (section 10-03). For the 1004-42 engine, section 12-03 gives the valve tip clearances and head bolt sequence. The engine mount recommended torque and special torque tensions for connecting rods and main bearings are all specified. You get the factory numbers, not a range guess. Page 01-05-10 has the tightening torque table.

Access the Factory Manual today and put the OEM data on your bench – not a guess.