1998 Clark CMP 15/18 & CMP 20/25/30 Service Manual

1998 Clark CMP 15/18 & CMP 20/25/30 documentation including maintenance, diagnostics, and repair procedures. Part Number SM 638.

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Document Details

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Document Number / Seller:
30651 / Walter Diaz
File Size:
14.14 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Forklift
Last updated / verified
Mar 20, 2025

Models Covered & Key Technical Specifications

Clark Forklift CMP 15/18 & CMP 20/25/30 Service Manual: (SM 638) - Comprehensive Forklift Maintenance, Diagnostics & Repair Manual (1998)

Forklift Service Data | Forklift Segment

  • Documented Assembly Torques: 75-80 N-m (55-59 ft-lb) establishes the torque for the upright trunnion bolts Framework.
  • Specific Temperature Range: For optimal operation, 82°C / 82°C defines the thermostat opening temperature Parameters.
  • Essential Power Rating: 12 L (3.2 gal) -- signifies the transaxle oil capacity Threshold.
  • Advanced Memory Capacity: The engine requires 4.0 L (4.2 qt) for the 4G63 model, detailing the engine oil capacity Logic.
  • Core Speed Performance: Maximum throughput reaches 2600 rpm Parameters.
  • Documented Fluid Volume: 8.5 L (2.25 gal) is the capacity of the cooling system fluid Framework.

Professional Workshop Service Manual & Technical Specifications

Clark Forklift CMP 15/18 & CMP 20/25/30 Service Manual: (SM 638) - Comprehensive Forklift Maintenance, Diagnostics & Repair Manual (1998)

Design-Core: Clark CMP 15/18 & CMP 20/25/30 (SM 638) // Operational-Scope: Forklift / Transaxle Logic // Design-Core: 1998 // Service-Nexus | Baseline | Calibration-Data

Service-Nexus Baseline Calibration-Data
Engine Specifications 1997 cc (121.8 cu in) 1880 kPa (163.5 psi) at 300 rpm
Cooling System 8.5 L (2.25 gal) 0.85-1.12 kg/cm2 (12.1-15.9 psi)
Transaxle Specifications 12 L (3.2 gal) 173-310 kPa (25-45 psi)
Ignition System 0.7-0.8 mm (0.027-0.031 in) 4° BTDC at 800 rpm
Wheels and Tires 861 kPa (125 psi) 16.0-19.7 kgf-m (116-142 ft-lb)

The manual presents information on engine systems, cooling systems, fuel systems, transaxles, ignition systems, electrical components, and wheels/tires. It details specifications, troubleshooting procedures, and overhaul guidelines for various forklift components. Careful attention is given to procedures such as engine tune-ups and ignition timing adjustments to ensure optimal performance and longevity.

Engine System Maintenance

This section systematically requiring basic planned maintenance procedures for the engine. It covers engine oil checks, coolant levels, and general inspections to maintain optimal engine condition. The manual documents torque specifications for engine components to ensure proper bearing preload accuracy.

Transaxle System Maintenance

This section covers the transaxle system, including removal, installation, and overhaul procedures. It details specifications for clutch pressure and hydraulic systems. Careful attention is given to ensuring correct component alignment and torque settings during assembly.

Ignition System Maintenance

This section focuses on the ignition system, detailing inspection, adjustment, and timing procedures. It covers distributor components, spark plug maintenance, and ignition coil tests to ensure proper spark delivery and engine timing.

Electrical System Maintenance

This section outlines the maintenance and overhaul of the starter, alternator, and instrument pod. It provides diagnostic guides and testing procedures for these electrical components to ensure reliable operation.

Wheels and Tires Maintenance

This section covers the maintenance and inspection of forklift wheels and tires. It details procedures for tire replacement, wheel mounting, and inflation, emphasizing safety precautions and correct component matching.

FAQ

Assess the **critical** ignition timing settings. keyboard_arrow_down

4° BTDC at 800 rpm is the initial ignition timing specification.

What components **required** clearance measurements? keyboard_arrow_down

0.02-0.04 mm (0.0008-0.0016 in) is the standard value for crankshaft oil clearance.

Confirm the **specified** torque specifications. keyboard_arrow_down

75-80 N-m (55-59 ft-lb) is the specified torque for the upright trunnion bolts.

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Reviews (2)

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New
The SM 638 manual is comprehensive and easy to follow. It covers everything from engine specs to assembly procedures thoroughly. I appreciated the quick email response from support when I had questions about the download. Excellent service!
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New
This manual was a lifesaver for our service team. The detailed troubleshooting sections made it easy to identify and fix issues quickly. The download process was seamless, and the support team responded to my inquiries in no time! Highly recommend!