Clark CQ20, CQ25, CQ30 Service Manual — Wiring Diagrams

Name: Clark CQ20, CQ25, CQ30 Service Manual — Wiring Diagrams
Author: Clark

$39.99

Type: Forklift

729 Pages·33 MB·Searchable PDF·English·Print-Ready

✓ Wiring Diagrams
✓ Hydraulic Schematics
✓ Torque Specs
✓ Multi-Level Bookmarks (3-level navigation)

Preview Sample Pages (PDF)

Pull the upright section open on a Monday morning and you are checking carriage roller clearance with the shim tables right in front of you, because this 729-page Clark CQ20, CQ25, CQ30 service manual pdf (D/L variants included) covers the whole forklift family across seventeen factory chapters. Electrical circuit diagrams map the instrument pod and parts arrangement wire by wire, and the lift circuit chapter runs its hydraulic schematic straight into pressure checks and control valve adjustment. Troubleshooting tables carry real weight here, running through fuel, ignition, brake, steering, and upright faults until each one ends at a repair. On the diesel engine the thermostat should crack at 160 F (71 C) and stand fully open by 185 F (85 C); the water outlet bolt pulls to 14 N-m (10.1 lbf-ft). Every hour that truck sits idle is an hour of freight nobody moved. Bookmarked, text-searchable, and yours to keep wherever the machine happens to be parked.

What's Inside This Clark CQ20, CQ25, CQ30 Manual

System	Pages	Key Topics
Periodic Service	4-19	Maintenance Schedules, The Planned Maintenance Program
Engines	20-290	Safety, General Service Information, Periodic Maintenance, Engine
Cooling System	291-308	Specifications and Description, Engine Cooling System Testing and Maintenance, Radiator Removal and Replacement
Fuel System	309-444	Fuel System Specifications and Description, Fuel System Troubleshooting, Fuel System Adjustments and Maintenance
Air Induction System	445-456	Specifications and Description, Air Induction System Troubleshooting, Air Induction System Service
Transaxle	457-490	Structure and Maintenance, Disassembly, Assembly
Ignition System	491-522	Ignition System Description and Specifications, Ignition System Troubleshooting, Ignition System Inspection, Adjustments, And Timing, Distributor Overhaul
Electrical System	523-570	Cautions for Working on the Electrical System, Specifications and Features of Electrical System, Electrical Circuit Diagram and Electrical Parts Arrangement, Instrument Pod
Wheels and Tires	571-584	Wheels and Tires Specifications and Description, Pneumatic Wheels and Tires
Brake / Inching System	585-597	Braking/Inching System Specifications and Description, Service Brake Troubleshooting, Brake/Inching Pedals and Linkages Adjustments, Brake Bleeding, Brake Master Cylinder Service
Steering Column and Gear	598-604	Outline, Troubleshooting Table, Priority Valve Disassembly and Assembly
Steer Axle	605-619	Steering Axle Specifications and Description, Steer Axle Removal and Replacement, Steer Axle Overhaul, Steer Cylinder Removal and Replacement, Steer Cylinder Overhaul
Hydraulic Pump, Sump, and Filters	620-636	Hydraulic Sump, Filters, And Pump Specifications and Description, Hydraulic Pump and Troubleshooting, Hydraulic Filters and Fluid Maintenance
Hydraulic Control Valve/Lift Circuit	637-652	Hydraulic Control Valve/Lift Circuit Specifications and Description, Hydraulic System Schematic, Hydraulic System Troubleshooting, Hydraulic System Pressure Checks and Adjustment
Tilt Cylinders	653-664	Tilt Cylinder Specifications and Description, Tilt Checks and Adjustments, Tilt Cylinder Removal and Replacement, Tilt Cylinder Overhaul
Upright	665-716	Upright Specifications and Description, Troubleshooting, Upright Inspection, Carriage and Upright Roller Clearance Checks and Shim Adjustments, Cylinder Removal, Shimming, Overhaul
Counterweight, Sheet Metal & Chassis	717-729	Counterweight Specifications and Description, Counterweight Removal and Replacement, Overhead Guard/Operator’s Cell Removal and Replacement, Floorboard, Radiator Cover

Quick Reference Specifications

Specification	Value	Page
All Models
Thermostat opening temperature	Starts to open at 160°F (71°C), fully opens at 185°F (85°C)	p. 165
Starter Motor Nominal Output	3.0 HP (2.3 kW)	p. 180
Starter Motor No-load Terminal Voltage / Current	11 V / 140 A max	p. 180
Water outlet bolt torque	1.4 kgf·m (10.1 lbf·ft) [14 N·m]	p. 251
Thermostat Open (cracking) temperature	82°C ± 1.5° (180°F ± 2.7°)	p. 292
Wheel mounting lug nuts torque	637~718 Nm (471~531 lbf·ft)	p. 464
Adaptor plate to converter housing and converter housing to transmission housing attaching screws torque	30~33 Nm (22~25 lbf·ft)	p. 489
Engine Oil Capacity (4TNE94L/4TNE98)	9.2 / 7.2 L	p. 40
Engine Oil Capacity (4G64 LPG/Gas)	4.0 L	p. 224
Engine Coolant Capacity (4TNE94L/4TNE98)	4.2 L	p. 43
CQ 20-30 L
Tightening torque	4.1~5.1 kg.m	p. 546
CQ20-30
Drive Wheel Mounting Nut Torque (1 Piece black)	640-720 N⋅m (470-530 ft⋅lb)	p. 572

Brand	Clark
Model	CQ20, CQ25, CQ30, CQ 20 D/L, CQ 25 D/L, CQ 30 D/L
Machine Type	Forklift
Manual Type	Service Manual
Language	English
Format	Searchable PDF (Digital Download)
Pages	729
File Size	33 MB
Wiring Diagrams	Yes
Hydraulic Schematics	Yes
Torque Specifications	Yes
Bookmarked / Indexed	Yes

Clark CQ20, CQ25, CQ30 Service Manual — Wiring Diagrams

What's Inside This Clark CQ20, CQ25, CQ30 Manual

Quick Reference Specifications

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