CLARK S20, S25, S30, S35 LG & S20, S25, S30, S32C LG Forklift Service Manual

CLARK S20, S25, S30, S35 L/G & S20, S25, S30, S32C L/G Service Manual

This CLARK forklift service manual is a comprehensive technical reference for the S20, S25, S30 and S35 L/G series, together with the S20, S25, S30 and S32C L/G models equipped with Ford engines. The manual identifies these trucks with rated capacities from 2,000 to 3,500 kg and provides structured service information for maintaining and repairing the truck systems.

The sample manual is identified as CLARK SM 1083, Revision 2.0, Part No. 8146157, dated April 2021. The document is organized into service groups covering safety, periodic maintenance, engine systems, transmission, electrical systems, axles, braking, steering, hydraulics, upright components, chassis and specifications. :contentReference

Comprehensive Forklift Service Information

The manual begins with a dedicated Safe Maintenance section covering safety procedures, lifting, jacking, blocking and towing. The illustrated procedures show recommended lifting and blocking points and provide important precautions for safely positioning the forklift before maintenance work.

The Periodic Service section provides maintenance schedules based on operating hours. The sample includes service intervals of approximately 8–10 hours/daily, 450–500 hours, 900–1000 hours and 2000 hours. It also includes lubrication points and recommended maintenance tasks for engine, cooling, transmission, electrical, drive axle, wheels and tires, brake, steering, hydraulic and upright systems. :contentReference[oaicite:1]{index=1}

Planned Maintenance Program

A dedicated Planned Maintenance section provides a systematic approach to inspections, lubrication, adjustments and functional checks. The sample includes a recommended PM task chart covering engine checks, cooling system inspection, transmission tests, electrical checks, drive axle service, brake inspection, steering components, hydraulic systems, tilt cylinders and upright, carriage and fork components.

Major Service Groups Covered

• Group SA – Safe Maintenance
• Group PS – Periodic Service
• Group 00 – Engine (Ford 2.5)
• Group 01 – Cooling System
• Group 03 – Intake and Exhaust System
• Group 06 – Transmission
• Group 13 – Electrical System
• Group 20 – Drive Axle
• Group 22 – Wheels and Tires
• Group 23 – Brake / Inching System
• Group 25 – Steering Column and Gear
• Group 26 – Steer Axle
• Group 29 – Hydraulic Pump, Sump and Filters
• Group 30 – Hydraulic Control Valve / Lift Circuit
• Group 32 – Tilt Cylinders
• Group 34 – Upright
• Group 38 – Counterweight, Sheet Metal & Chassis
• Group 40 – Specifications

Engine, Transmission and Hydraulic Service

The manual provides dedicated service coverage for the Ford 2.5 engine, cooling system and intake/exhaust system. Periodic maintenance information includes engine oil, filters, fuel system components, ignition components, coolant, belts, radiator and water pump checks.

Transmission service information includes fluid inspection and replacement, filter service, pressure checks, charging pump and clutch pack tests, inching operation and oil cooler/line inspection. Hydraulic maintenance covers hydraulic fluid, filters, suction screens, tank breathers and hydraulic system relief pressure.

Forklift Steering, Brakes and Upright Systems

Service information also covers the steering column and gear, steer axle, steering linkage, wheel bearings and steering cylinder seals. Brake and inching system information includes brake operation, brake lines, service brake wear and parking brake adjustment.

The upright section addresses important forklift load-handling components including the carriage, lift chains, forks, fork latches, load backrest, lift cylinders, rollers and upright mounting components. The sample’s visual inspection procedure specifically illustrates the relationship between the upright, carriage, load backrest, forks and overhead guard. :contentReference[oaicite:2]{index=2}

Useful for Workshop Maintenance

This manual is particularly useful when carrying out scheduled maintenance, troubleshooting, component inspection, adjustments, lubrication and mechanical service on the covered CLARK forklift models. The structured group format makes it easier for technicians to locate information for a specific truck system.

Manual format: Digital PDF document. The complete file contains 698 pages with a download size of approximately 139 MB.

Note: The supplied sample is used to identify the manual’s model coverage, organization and technical contents. Always verify the truck model, serial number and applicable specifications before performing service work.