Clark TMX12-25 EPX16-18 Electric Forklift Service Manual – SM-715 2005 Workshop Repair

Description

This Clark TMX12-25 EPX16-18 Electric Forklift Service Manual is the full workshop-level service documentation for the Clark TMX12-25 and EPX16-18 electric counterbalance lift trucks. Issued by Clark Material Handling Company as Book No. SM-715, Part No. 8037870 in June 2005, it covers trucks rated from 1250 kg to 2270 kg (2500 lb to 5000 lb) and works through every major system on the machine: the three-phase AC traction and pump motors, the ZAPI Dual AC and pump controllers, the independent drive axle housings, the caliper brake system, the hydrostatic power steering axle, the main hydraulic valve, tilt and lift cylinders, and the full upright and carriage assembly.

The manual is organised the way Clark service technicians actually work: by numbered Groups, each acting as a chapter with its own contents, procedures, torque figures and troubleshooting logic. Every page carries a Group-Section-Page ID so a specific procedure can be located and referenced quickly during a job. Diagrams, exploded views, wiring schematics and hydraulic routing illustrations appear throughout rather than being bundled at the end, so the picture sits with the procedure it belongs to.

File Details

• Manual type: Service Manual (workshop repair and overhaul level)
• Brand: CLARK
• Models covered: TMX12-25, EPX16-18 electric forklifts
• Book number: SM-715
• Part number: 8037870
• Publication date: June 2005
• Language: English
• Page count: 501
• File format: PDF

Chapters Covered

• SA – Safe Maintenance: safety signs and messages, safe maintenance practices, lifting, jacking and blocking the truck, towing procedures
• PS – Periodic Service: maintenance schedules, TMX and EPX service charts and lubrication points, planned maintenance programme, PM inspection form
• 12 – Battery: battery removal, maintenance, vents, cleaning, charging, electrolyte, compartment cleaning, installation, records, specific gravity and load tests, connector, negative terminal and static chain installation
• 13 – Wiring, Switches and Instruments: schematic electric circuit diagrams, general electrical service tips, wiring and cable routing, switches and sensors, instrument panel
• 16 – Electric Motors: motor specifications and descriptions, drive motor overhaul, pump motor overhaul
• 17 – Contactors: contactor specifications and overhaul
• 19 – Motor Controls: description, programming and adjustments using the ZAPI handset, control troubleshooting and fault codes, TMX factory control settings, sequence of operation
• 20 – Drive Axle: specifications and description, troubleshooting, fluid check and change, removal and installation, full overhaul including ring gear shaft, input pinion gear carrier and axle shaft
• 22 – Wheels and Tires: specifications and description, mounting and maintenance, cushion and pneumatic tire procedures
• 23 – Brake System: specifications, fluid check, fill and bleed, brake pedal and master cylinder, caliper removal and replacement, parking brake, brake overhaul
• 25/26 – Steer System: specifications and description, troubleshooting, steering column components, relief pressure check and adjustment, steering gear overhaul, steer axle service, steer cylinder overhaul (separate TMX and EPX procedures)
• 29 – Main Hydraulic System: specifications and description, fluids and filters, troubleshooting, pressure checks and adjustments, main hydraulic pump overhaul
• 30 – Hydraulic System: hydraulic system schematic, main hydraulic control valve removal and overhaul
• 32 – Tilt Cylinders: specifications, checks and adjustments, removal and installation, overhaul
• 34 – Uprights: specifications and description, troubleshooting, upright inspection, carriage and upright roller clearance checks and shim adjustment, cylinder removal and shimming, chain inspection and replacement, fork and carriage removal, upright removal
• 38 – Counterweight and Chassis: counterweight specifications, removal and installation, overhead guard, floor plate, seat and seat deck
• 40 – Specifications: nameplate and decals, general specifications, hydraulic fitting tightening procedure

Taken as a whole, this Clark TMX12-25 EPX16-18 service manual gives a technician a single reference for the entire machine rather than a collection of disconnected data sheets. The hydraulic and electrical schematics sit alongside the mechanical overhaul procedures, so a fault can be traced from a controller fault code through the wiring to the motor or valve that caused it, and then repaired using the removal, overhaul and reinstallation steps in the same document.

What This Manual Lets You Do

The electric drivetrain is covered in depth. Both traction motors and the combined hydraulic/steering pump motor are documented with their AC specifications, encoder bearing service, thermistor behaviour and complete overhaul steps including bearing replacement and motor reassembly. The ZAPI Dual AC and pump controllers are addressed through handset programming, parameter adjustment, tester menu readings, and a fault code table that runs through master, slave and pump codes with the likely cause and the action required for each. Codes covering seat switch, watchdog, EEPROM, contactor state, capacitor charge, high temperature, motor locked, encoder error, steer sensor, wrong set battery and CAN communication faults are all listed with troubleshooting steps.

The drive axle section covers the two independent housings, pinion, ring gear, ring gear shaft and axle shaft, with bearing preload values, backlash measurement, tooth bearing contact patterns and the shim adjustment sequence needed to set the gears correctly. The brake system documentation includes caliper removal, rotor service, parking brake adjustment for both the TMX lever type and the EPX foot pedal type, and full caliper overhaul with torque values for every retaining nut and pivot. Steering is split cleanly between the TMX trunnion-type steer axle and the EPX steer axle, with steering gear overhaul, steer cylinder overhaul and relief pressure setting of 8340-8830 kPa (1210-1280 psi).

Diagnostics and Specifications

Because the manual includes the sequence of operation for the AC control system, it is possible to follow the truck through battery connection, key switch closure, system checks, traction system operation, pump control operation and accessory circuits, with the voltages expected at each terminal at each stage. That, combined with the fault code charts and the tester menu descriptions, makes this a practical diagnostic tool and not just a repair reference.

The specification group at the back gathers rated capacities for every model, empty and loaded axle weights, travel speeds, turning radii, upright lift and lowering speeds, drift limits, and a consolidated critical fastener torque table covering drive axle mounting, wheel lugs, steer trunnion bolts, tilt cylinder yokes and counterweight bolts. Hydraulic fitting tightening procedure and decal locations are included so that the truck can be returned to service in the condition the manufacturer intended.

Get the Complete Clark SM-715 Reference

Whether you are servicing a TMX12, TMX15, TMX17, TMX20, TMX25 or an EPX16 or EPX18, this manual gives you the correct procedures, the correct torque values and the correct adjustment limits for the job in front of you. Working from the wrong figures on a 1250-2270 kg electric lift truck costs far more than the manual does, whether that is a mis-shimmed upright, an incorrectly preloaded axle bearing, or a controller parameter set outside the factory values listed here. Having the Clark SM-715 document on hand removes that guesswork.

IMAGES PREVIEW

Delivery is instant. The file is a PDF download, so there is no shipping and nothing to wait for. Open it on a laptop or tablet in the workshop, print the pages you need for the job and take them to the truck, and keep the complete manual on file for the next repair. Every procedure, diagram and specification in this Clark TMX12-25 EPX16-18 Electric Forklift Service Manual is available the moment your order completes.