## CLARK CQ 20 25 30 D & L Forklift: A Comprehensive Overview

The CLARK CQ 20 25 30 D & L Forklift is a versatile and robust industrial machine designed to meet the demands of high-capacity material handling applications. With its powerful diesel engine, advanced transmission system, and exceptional lifting capabilities, the CLARK CQ Forklift delivers unmatched efficiency, reliability, and productivity.

### Engine

At the heart of the CLARK CQ Forklift lies a robust diesel engine that provides exceptional power and torque for demanding operations. The engine features a direct injection system for optimal combustion and fuel efficiency. Advanced engine management systems ensure smooth operation, reduced emissions, and extended engine life.

### Transmission

The CLARK CQ Forklift is equipped with a durable and efficient powershift transmission that seamlessly transfers power from the engine to the wheels. The transmission offers multiple forward and reverse gears, allowing operators to select the optimal gear ratio for various load capacities and operating conditions. The transmission also incorporates a torque converter that multiplies torque output, providing exceptional acceleration and gradeability.

### Lifting System

The CLARK CQ Forklift boasts a comprehensive lifting system designed to handle heavy loads with precision and stability. The mast assembly is constructed from high-strength steel, ensuring durability and rigidity. The hydraulic cylinders are double-acting and feature precision-machined components for smooth and controlled lifting operations. The forks are made from hardened steel and can be customized to accommodate different load types and sizes.

### Load Handling

The CLARK CQ Forklift is equipped with a range of advanced load-handling features that enhance safety and productivity. The load-sensing hydraulic system automatically adjusts hydraulic pressure based on the weight of the load, providing optimal lifting and lowering speeds. The side-shifting carriage enables precise lateral movement of loads, facilitating accurate placement and retrieval.

### Operator Comfort and Safety

The CLARK CQ Forklift prioritizes operator comfort and safety. The ergonomic operator's compartment features a fully adjustable seat, a comfortable steering wheel, and intuitive controls. The spacious cabin provides ample legroom and headroom for extended periods of operation. The forklift also incorporates a comprehensive safety system that includes an operator presence system, seat belts, and emergency shutdown switches.

### Durability and Reliability

The CLARK CQ Forklift is designed for exceptional durability and reliability in demanding industrial environments. The heavy-duty frame and chassis are constructed from robust steel, providing a solid foundation for the forklift's components. The hydraulic system and transmission are engineered to withstand extended periods of operation and are backed by comprehensive warranties. Regular maintenance and inspections ensure optimal performance and extended service life.

CLARK CQ 20 25 30 D & L COMBUSTION FORKLIFT WORKSHOP SERVICE REPAIR MANUAL




APPLICABLE MODEL:
CLARK CQ20D, CQ20L
CLARK CQ25D, CQ25L
CLARK CQ30D, CQ30L
LOAD/RATED CAPACITY: 2000-3000KG


ENGINE COVERED:

3.053L 4-CYLINDER VERTICAL IN-LINE, LIQUID-COOLED, YANMAR 4TNE94L EPA TIER-2 DIESEL ENGINE

3.319L 4-CYLINDER VERTICAL IN-LINE, LIQUID-COOLED, YANMAR 4TNE98 EPA TIER-3 DIESEL ENGINE

2.350L 4-CYLINDER IN-LINE, 4-CYCLE, WATER-COOLED, OHC, 4G64 PETROL POWERED ENGINE

2.350L 4-CYLINDER IN-LINE, 4-CYCLE, WATER-COOLED, OHC, 4G64 LPG POWERED ENGINE

2.359L 4-CYLINDER IN-LINE, WATER-COOLED, DOHC, HMC(HYUNDAI) THETA LPG POWERED ENGINE



CONTENTS:
GENERAL INFORMATION
PERIODIC SERVICE
MAINTENANCE SCHEDULE
SAFETY & PRE-CAUTION
ENGINE SPECIFICATION
ENGINE SYSTEM
FUEL SYSTEM
COOLING SYSTEM
LUBRICATION SYSTEM
STARTER MOTOR SYSTEM
ALTERNATOR SYSTEM
ENGINE OVERHAUL
ENGINE REMOVAL
ENGINE RE-INSTALLATION
RPM-VACUUM-STALL TEST
ENGINE TUNE-UP
ELECTRICAL SYSTEM
EMISSION CONTROL
ENGINE OIL & FILTER
RADIATOR-LPG CARBURETOR
VAPORIZER & REGULATOR
AIR GOVERNOR SYSTEM
LPG SYSTEM OVERVIEW
LPG INSTALLATION SYSTEM
AIR INDUCTION SYSTEM
EXHAUST SYSTEM
TRANSAXLE SYSTEM
IGNITION SYSTEM
ELECTRICAL COMPONENTS
INSTRUMENT POD
WHEELS & TIRES
BRAKE SYSTEM
INCHING PEDAL & LINKAGES
PARKING BRAKE SYSTEM
STEERING COLUMN
STEERING GEAR SYSTEM
STEER AXLE SYSTEM
HYDRAULIC SUMP & FILTER
HYDRAULIC PUMP SYSTEM
HYDRAULIC CONTROL VALVE
LIFT CIRCUIT SYSTEM
HYDRAULIC DIAGRAM
TILT CYLINDER SYSTEM
UPRIGHT & CARRIAGE
COUNTERWEIGHT SYSTEM
OPERATOR'S CELL & GUARD
FLOORBOARD-COWLS-SEAT
SERVICE TOOLS OVERVIEW
TROUBLESHOOTING
ELECTRICAL CIRCUIT DIAGRAM



THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:

# ALL WINDOWS VERSION
# ALL MAC VERSION

# YOU NEED THE ADOBE ACROBAT READER TO VIEW THE DOCUMENT AS THE MANUAL IS PDF FORMAT. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM ADOBE ACROBAT WEBSITE

# AS THIS MANUAL IS COMING TO YOU IN ZIP FORMAT, YOU NEED TO EXTRACT THE FILE BEFORE USE BY USING WINZIP OR WINRAR SOFTWARE. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM WINZIP WEBSITE




THIS IS A VERY COMPREHENSIVE AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.