CLARK CQ20-30D Forklift Parts Manual – Tier2 & Tier3 | PDF Download

Description

CLARK CQ20-30D Forklift Parts Manual – Tier2 & Tier3 Coverage

This CLARK CQ20-30D forklift parts manual gives you complete parts identification and ordering information for the CQ20D, CQ25D, and CQ30D lift trucks. Whether you are maintaining a Tier2 unit in the CQ230D-0126 & above-8285 CNF serial range or a Tier3 model from CQ230D-0003 & above-9751 CNF, this 217-page PDF provides the exploded views, part numbers, and component breakdowns you need to keep your forklift operating at peak performance.

Published by CLARK in June 2009 under part number 8065951, this CLARK CQ20-30D forklift parts manual is the same reference material used by parts professionals and service technicians. The manual is presented in both English and Korean, making it accessible to a wide range of users while maintaining the original factory terminology for every component.

File Details

• Manual Type: Parts Manual
• Brand: CLARK
• Models Covered: CQ20D, CQ25D, CQ30D (CQ20-30D series)
• Truck Model: CQ20-30D
• Serial Numbers: CQ230D-0126 & above-8285 CNF (Tier2), CQ230D-0003 & above-9751 CNF (Tier3)
• Part Number: 8065951
• QRI No.: I-577-2 (Tier2), I-585-2 (Tier3)
• Date: Jun. 2009
• Language: English / Korean
• Format: PDF
• Page Count: 217

Chapters Covered

The CLARK CQ20-30D forklift parts manual is organised into the following major sections, each covering a specific system or assembly of the forklift:

• 00 – Engine Mounting (Tier2)
• 00 – Crankshaft (Tier2)
• 00 – Cylinder Head
• 00 – Crankcase
• 00 – Gear Cover
• 00 – Camshaft
• 00 – Gaskets (Tier2)
• 00 – Crankshaft (Tier3)
• 00 – Gaskets (Tier3)
• 00 – Engine Mounting (Tier3)
• 01 – Cooling, Oiling, Lubrication
• 01 – Flywheel Housing
• 01 – Cooling System (Tier2)
• 01 – Lubricating Oil System
• 01 – Water Pump Mounting (Tier2)
• 01 – Water Pump Mounting (Tier3)
• 01 – Cooling System (Tier3)
• 02 – Fuel, Carburation, Exhaust
• 02 – Air Cleaner
• 02 – Fuel Injection Pump (Tier2)
• 02 – Fuel Injection Lines (Tier2)
• 02 – Accelerator Control
• 02 – Fuel Lines (Tier2)
• 02 – Fuel Injection Lines (Tier3)
• 02 – Fuel Injection Pump (Tier3)
• 02 – Fuel Lines (Tier3)
• 03 – Exhaust Manifolds
• 03 – Fuel System
• 03 – Intake Manifold
• 03 – Exhaust System
• 03 – Exhaust System (Spark Arrestor) (Option)
• 06 – Transmission (Hydratork)
• 06 – Hydratork Transmission
• 06 – Control Valve Assembly
• 06 – Transmission Clutch Packs
• 07 – Transmission (Mounting)
• 07 – Transaxle Mounting
• 10 – Converter Lines & Filters
• 10 – Trans Cooling Lines
• 12 – Electrical (Generator, Alternator, Battery)
• 12 – Alternator
• 12 – Battery Mounting
• 13 – Electrical (Lights, Horns, Signals)
• 13 – Instrument Panel (Tier3, Option)
• 13 – Strobe Light (Option)
• 13 – Strobe Light Mounting (Option)
• 14 – Electrical (Wiring, Option & Accessories)
• 14 – Electrical Wiring
• 14 – Static Strap (Option)
• 14 – Instrument Panel
• 20 – Drive Axle, Differential
• 20 – Drive Axle
• 20 – Differential & Carrier
• 22 – Brake System, Wheel & Tire
• 22 – Drive Wheel & Tire
• 22 – Drive Wheel & Tire (Option)
• 22 – Steer Wheels & Tires
• 22 – Steer Wheel & Tire (Option)
• 22 – Brake Assembly RH
• 22 – Brake Assembly LH
• 23 – Brake System, Wheel & Tires
• 23 – Inching Master Cylinder (Option)
• 23 – Parking Brake
• 23 – Drive Wheel & Tire (Option)
• 23 – Brake & Inching Lines
• 23 – Dual Drive Wheel & Tire (Option)
• 23 – Brake Lines
• 25 – Steering Gear, Linkage
• 25 – Steering Column Mounting
• 26 – Steer Axle, Power Steer Pump, Steer Cyl, Lines
• 26 – Steering Axle
• 26 – Steering Cylinder
• 26 – Steering Lines
• 26 – Steer Axle Installation
• 29 – Hydraulic System (Sump, Pump)
• 29 – Hydraulic Pump (Assembly)
• 29 – Hydraulic Sump
• 29 – Hydraulic Return Lines
• 29 – Hydraulic Pump
• 30 – Hydraulic System (Control Valve, Linkage)
• 30 – Main Control Valve 2-Spool
• 30 – Main Control Valve 3-Spool
• 30 – Main Control Valve 4-Spool
• 30 – Hydraulic Control Valve 2-Spool
• 30 – Hydraulic Control Valve 3-Spool
• 30 – Hydraulic Control Valve 4-Spool
• 31 – Hydraulic System (Piping & Fittings)
• 31 – Tilt Limit with Override (Option)
• 31 – Lift/Tilt Plumbing
• 31 – Aux Valve Plumbing (Double) (Option)
• 31 – Aux Valve Plumbing (Single) (Option)
• 31 – Hydraulic Lines
• 32 – Hydraulic System (Cylinder, Motor)
• 32 – Tilt Cylinder Assembly
• 32 – Accumulator (Option)
• 32 – Tilt Cylinder Mounting
• 34 – Upright, Rails, Carriage, Fork, LBR
• 34 – Load Back Rest
• 34 – Lift Carriage Assembly (Option)
• 37 – Body, Dash, Hood, Cab, Trim
• 37 – Hood Mounting
• 38 – Body, Frame, CTWT, Sling Eye, Tow Coupler
• 38 – Frame & Counterweight
• 39 – Body, Dash, Hood, Seat, Cab, Overhead Guard
• 39 – Seat Assembly (Option)
• 39 – Seat Mounting
• 39 – Sheet Metal
• 39 – Load Back Rest (Option)
• 39 – Overhead Guard
• 40 – Data Plates & Decal
• 40 – Decals
• 41 – Operator Environment
• 41 – Storage Console (Option)
• 50 – Device Piping
• 50 – Hose Adaptation (Option)
• 50 – Solenoid Valve (Option)
• 50 – Kissen Kit Installation (Option)
• 50 – Quick Disconnect for Device Hose Adaptation (Option)
• 50 – High Termination Plumbing (Option)
• 53 – Side Shifter Cylinder (Tier3, Option)
• 53 – Side Shifter (Option)
• 54 – Device-Hydraulic
• 54 – Fork Positioner (Option)
• 66 – Upright, Rails, Forks
• 66 – Upright Mounting
• 66 – Fork-Hook Type (Tier3)
• 66 – Primary Cylinder (Option)
• 66 – Secondary Cylinder Assembly (Option)
• 66 – Lift Cylinder Assembly (Option)
• 66 – Standard Upright (Option)
• 66 – Triple Stage Upright (Option)
• 66 – Hi-Lo Upright (Option)
• 75 – Conversion Kits
• 75 – Variable Relief Valve Installation (Option)
• 75 – Device Hydraulic Pressure Gauge Installation (Option)
• 75 – Solenoid Valve (Option)
• 75 – Quick Disconnect for Device Hose Adaptation (Option)
• 75 – Seat Operated Brake (Option)
• 75 – Seat Operated Brake Switch (Option)

This CLARK CQ20-30D forklift parts manual is far more than a simple parts list. It is a complete visual reference that lets you identify every component on your forklift, from engine internals and transmission clutch packs to hydraulic control valves, brake assemblies, steering cylinders, and mast components. Each section presents detailed exploded-view illustrations with numbered callouts that correspond directly to the parts table below the diagram. This means you can see exactly how components fit together and order the correct part the first time.

For Tier2 and Tier3 models, the manual provides separate sections where the two emissions tiers differ, ensuring you get the right parts for your specific machine. The inclusion of optional equipment sections for side shifters, fork positioners, accumulators, strobe lights, and seat-operated brakes means the manual covers virtually every configuration of the CQ20D, CQ25D, and CQ30D that left the factory.

What This Parts Manual Covers

The scope of this CLARK CQ20-30D forklift parts manual spans the entire machine. Engine sections break down the cylinder head, crankcase, gear cover, camshaft, crankshaft, pistons, connecting rods, flywheel, and all associated gaskets and fasteners for both Tier2 and Tier3 engines. The cooling system section details the radiator, water pump, thermostat, hoses, fan, and fan drive components. The fuel system covers the injection pump, injection lines, fuel filter, accelerator controls, and air cleaner assembly.

Driveline coverage includes the Hydratork transmission, torque converter, transaxle, differential, and drive axle assemblies. Brake system sections detail the wheel cylinders, brake shoes, backing plates, master cylinder, inching cylinder, parking brake, and all hydraulic brake lines. Steering components include the steering axle, steering cylinder, power steering pump, and all related lines and fittings.

The hydraulic system is thoroughly documented with the main control valve in 2-spool, 3-spool, and 4-spool configurations, along with lift/tilt plumbing, auxiliary valve plumbing, hydraulic pumps, sumps, return lines, and accumulators. Upright and carriage sections cover standard, triple-stage, and hi-lo masts, along with lift cylinders, tilt cylinders, primary and secondary cylinders, carriages, load back rests, and forks.

Body and operator environment sections include the hood, frame, counterweight, overhead guard, seat assemblies, seat mountings, floor plates, cowl, instrument panel, and storage console. The decal section identifies all safety and information decals used on the machine. A comprehensive parts number index at the end of the manual allows you to look up any part number and find exactly where it appears in the exploded views.

Why This Manual Matters

Ordering the wrong part for your forklift costs time and money. This CLARK CQ20-30D forklift parts manual eliminates that risk by providing the exact part numbers you need, cross-referenced to exploded-view illustrations that show precisely where each component belongs. When you need to replace a hydraulic seal, a brake shoe, a fuel injection line, or any other component, you can locate it in seconds and order with confidence.

For Tier2 and Tier3 machines, using the correct section is critical. The manual clearly separates Tier2 and Tier3 components so you do not accidentally order a part that is incompatible with your engine’s emissions configuration. The serial number ranges provided on the cover tell you exactly which section applies to your truck.

Get Your CLARK CQ20-30D Forklift Parts Manual Today

This CLARK CQ20-30D forklift parts manual enables you to identify and order parts for the CQ20D, CQ25D, and CQ30D lift trucks with complete confidence. From major assemblies like the transmission and drive axle to small fasteners and seals, every component is documented with exploded views and corresponding part numbers.

IMAGES PREVIEW

Delivered as an instant PDF download after payment, there are no shipping charges and no waiting. The file works on any device, so you can view it on a laptop in the workshop, on a tablet in the field, or print the pages you need for a specific job. Keep your CLARK forklift running reliably with the correct parts and the correct information.