Description
CLARK TW125, TW235 Planned Maintenance & Adjustment Manual
The CLARK PMA-422 Planned Maintenance & Adjustment Manual is a comprehensive workshop reference for the maintenance and adjustment of CLARK TW125 and TW235 industrial trucks with the EV-1 control system. The sample manual identifies the publication as PMA-422 and provides structured maintenance procedures, inspection requirements, operational tests, electrical checks, lubrication information, and adjustment procedures.
This manual is designed to support systematic planned maintenance rather than relying only on corrective repairs. It explains how regular inspections, lubrication, adjustments, testing, and maintenance records can help identify developing problems before they result in unnecessary downtime or major repairs.
| Specification | Details |
|---|---|
| Product Name | CLARK TW125, TW235 Planned Maintenance & Adjustment Manual |
| Manual Number | PMA-422 |
| Manual Type | Planned Maintenance & Adjustment Manual |
| Manufacturer | CLARK Equipment |
| Model Coverage | TW125, TW235 |
| Control System | EV-1 Solid-State Control |
| Document Language | English |
| Format | |
| Total Pages | 425 Pages |
| File Size | 50 MB |
| Delivery | Digital Download |
| Manual Category | Forklift Planned Maintenance & Adjustment Manual |
| Publication Code | PMA-422 |
| Document Content | Maintenance, Inspection, Testing, Adjustment, Lubrication & Service Procedures |
| Compatibility | Compatible PDF viewing devices |
Complete Planned Maintenance Coverage
The manual begins with planned-maintenance procedures and inspection guidance, including visual inspections, PM check sheets, operational testing, battery inspection, cleaning, lubrication, electrical testing, and periodic electrical checks. The procedures are organized by group and section numbers so technicians can quickly locate the required service information.
Inspection & Operational Testing
Inspection procedures include checking the truck for oil leaks, damage, battery condition, counterweight and overhead guard security, lift chains, carriage components, forks, tires, hydraulic components, controls, and other important truck systems. Operational tests cover brake operation, steering, lift and tilt functions, pump motor operation, switches, indicators, horn, hour meter, and other operating functions.
Electrical & EV-1 Control System Service
The sample contains dedicated information for trucks using solid-state control. It includes electrical tests, battery polarity and voltage checks, SCR controller and component checks, drive motor cut-off functions, contactors, schematic breakdown information, and troubleshooting references. Special precautions are also provided for working around electrical and solid-state components.
Battery Maintenance & Inspection
Battery service is an important part of the planned-maintenance program. The manual includes battery inspection and testing procedures, battery removal and installation references, battery cable and connector inspection, battery vent checks, battery-fluid specific-gravity checks, cleaning procedures, and battery protection recommendations.
Hydraulic System & Lift Components
Hydraulic maintenance information includes hydraulic system pressure checks and adjustments, hydraulic system schematics, hydraulic oil filter and sump-tank procedures, hydraulic accumulator service, pump motor service, lift and tilt circuit information, tilt-cylinder drift testing, and upright and carriage inspection procedures.
Brakes, Steering & Drive System
The manual provides service information for parking brakes, service brakes, brake pedal free travel, brake switches, steering adjustments, steering limits, steering system checks, steering pump motor operation, drive units, drive wheels, and drive motor-related tests. These procedures are intended to help technicians verify correct operation and identify conditions requiring adjustment or repair.
Upright, Carriage, Forks & Lift Chains
Detailed inspection references are provided for the upright and carriage assembly. Procedures include checking carriage rollers, lift chains, chain anchors, fork condition, fork latches, lift-cylinder components, packing glands, load backrest extensions, upright rails, and related components.
Lubrication, Cleaning & Periodic Maintenance
The manual contains lubrication charts and cleaning, inspection, and lubrication instructions. The planned-maintenance program emphasizes regular service intervals, systematic inspections, and proper maintenance records to help reduce unscheduled downtime and improve equipment reliability.
What You Can Find Inside
- Planned maintenance procedures
- Visual inspection procedures and PM check sheets
- Operational testing procedures
- Lubrication charts for TW125 and TW235
- Battery inspection and service procedures
- Electrical testing procedures
- EV-1 solid-state control information
- SCR controller and component checks
- Drive motor and drive-unit service information
- Brake inspection, testing and adjustment
- Parking brake procedures
- Steering inspection and adjustment
- Power steering checks
- Hydraulic system pressure checks
- Hydraulic system schematic information
- Hydraulic filter and sump-tank service
- Hydraulic accumulator service
- Tilt-cylinder drift testing
- Lift and tilt circuit information
- Upright and carriage roller inspection
- Lift-chain inspection and adjustment
- Fork and fork-latch inspection
- Wheel and tire inspection
- Safety inspection procedures
- Electrical and battery safety precautions
Useful Workshop Reference
The sample pages show original-style CLARK Industrial Truck Division technical documentation with pictorial indexes, group and section references, illustrations, inspection procedures, and practical service instructions. This makes the manual useful as a reference for technicians, mechanics, workshop personnel, and owners maintaining compatible CLARK trucks.
Digital PDF format makes the manual convenient to store, search, and access on a computer, laptop, tablet, or other compatible device.
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