TCM Forklift Service Manual FG20N2S FG23N2S FG25N2S FG28N7S FG30N7S FD20Z2S FD23Z2S FD25Z2S FD28Z7S FD30Z7S – PDF

Description

TCM FG20N2S–FG30N7S and FD20Z2S–FD30Z7S Forklift Service Manual

This is the complete service manual for the TCM FG and FD series forklift trucks in the 2.0 to 3.0 ton class. Published by Toyo Umpanki Co., Ltd. in January 1988, it was written for service personnel and shop workers and documents the structural outline, systems and service procedures of these trucks in full. The manual covers both the gasoline-engined FG20N2S, FG23N2S, FG25N2S, FG28N7S, FG30N7S models fitted with the Nissan H20 engine and the diesel-engined FD20Z2S, FD23Z2S, FD25Z2S, FD28Z7S and FD30Z7S models with the Isuzu C240PKJ engine. Every major system on the truck is addressed — engine, fuel, electrics, clutch, transmission, torque converter, front and rear axles, steering, brakes, hydraulics and the two-stage telescopic mast — using exploded component drawings, cross-sectional views, wiring schematics and the torque, pressure and clearance values needed to do the job correctly.

File Details

• Manual type: Service Manual
• Brand: TCM (Toyo Umpanki Co., Ltd.)
• Models covered: FG20N2S, FG23N2S, FG25N2S, FG28N7S, FG30N7S, FD20Z2S, FD23Z2S, FD25Z2S, FD28Z7S, FD30Z7S
• Engines: Nissan H20 (gasoline), Isuzu C240PKJ (diesel)
• Language: English
• Publication date: January 1988
• File format: PDF

Chapters Covered

• 1. Engine
• 2. Fuel System
• 3. Electric System
• 4. Clutch and Clutch Pedal
• 5. Transmission and Differential
• 6. Torque Converter Transmission
• 7. Front Axle
• 8. Steering System
• 9. Rear Axle
• 10. Brake System
• 11. Hydraulic System
• 12. Loading System

1. Engine — Nissan H20 Gasoline and Isuzu C240PKJ Diesel

Detailed specifications for both power plants: cylinder count, bore and stroke, total displacement, compression ratio, rated speed and output, maximum torque, ignition timing and firing order for the gasoline H20, and injection pump, nozzle, governor and cooling system data for the C240PKJ diesel. The chapter also carries the engine speed adjustment procedure — idle setting and no-load maximum speed adjustment for the gasoline engine — plus valve clearances, cooling fan and water pump drives, and lubrication data.

2. Fuel System

Fuel tank construction, capacity and location, tank unit and fuel gauge resistance values, filter servicing for both gasoline and diesel variants, and the complete fuel tank cleaning procedure with the safety measures required when handling gasoline. Step-by-step filter disassembly with exploded parts diagrams.

3. Electric System

Starter, charging and lighting circuits for the 12-volt system, with bulb specifications for every lamp on the truck and complete wiring diagrams for both the gasoline engine model and the diesel engine model, plus left and right harness layouts with connector callouts. Essential reference for any electrical fault on these machines.

4. Clutch and Clutch Pedal

Dry single-plate clutch specifications, facing dimensions, disc replacement procedure using the slide bolt to withdraw the main drive shaft, and the full clutch pedal adjustment sequence including pedal height settings for gasoline and diesel trucks.

5. Transmission and Differential

Synchromesh transmission gear ratios for both the 2.0–2.5 ton and 2.8–3.0 ton variants, reduction gear and differential ratios, exploded transmission diagrams, the synchronising mechanism operation explained in six steps, power flow diagrams for every forward and reverse gear position, reduction gear and differential construction, and the complete shift arm replacement and reassembly procedure with torque values for every bolt and nut.

6. Torque Converter Transmission

Covers the power-shift transmission fitted to torque converter trucks. Torque converter construction and operation, clutch groups, control valve, relief and inching valves, charging pump, transmission case, hydraulic circulation diagrams for both tonnage ranges, towing procedure for a disabled truck, and the oil pressure check port locations — plus set pressures, gear ratios and clutch facing specifications.

7. Front Axle

Full-floating front axle construction, wheel hub and bearing arrangement, tire and rim specifications with inflation pressures, and front axle maintenance including bearing pre-load and tightening torques for the hub nuts, drive shaft nuts, wheel nuts and brake drum nuts.

8. Steering System

Rear-wheel steering with power steering. Steering gear construction (recirculating ball and nut type), hydraulic operation principles for straight, left and right turns, steering cylinder components, linkage layout and tightening torques, complete steering gear disassembly, inspection and reassembly procedures with torque values, after-mounting inspection and a troubleshooting guide covering hard steering, wandering, noise and leaks.

9. Rear Axle

Elliot type rear axle with steering angles, king pin, camber, caster and toe-in settings. Knuckle and king pin construction, tie rod and ball joint arrangement, center arm, drag link and rear wheel bearing pre-load adjustment procedure with starting torque values.

10. Brake System

Front two-wheel hydraulic braking system. Master cylinder operation explained, duo-servo wheel brake construction and braking operation in forward and reverse, automatic clearance adjuster, parking brake, brake pedal adjustment for both clutch type and torque converter type trucks, full wheel brake disassembly, inspection with wear limits, reassembly with torque values, operation test of the automatic clearance adjuster and a detailed troubleshooting table.

11. Hydraulic System

Main pump construction and service limits, control valve sections including the lift and tilt plungers, tilt lock valve, inlet cover flow divider operation, main relief valve and port relief valve operation, lift cylinder and tilt cylinder construction, flow regulator valve, oil tank, adjustment of the main and PS relief valves, gear pump disassembly and reassembly with inspection criteria, flow priority valve service and a hydraulic troubleshooting table.

12. Loading System

Two-stage telescopic rolling mast with J-shaped inner mast and outer mast cross-section dimensions, end roller, side roller and retaining roller sizes, lift chain specification, carriage and finger bar construction, and mast adjustment procedures covering finger bar position, lift chain tension, piston head angle and lift cylinder stroke.

Why This TCM Forklift Service Manual Matters

These TCM FG and FD trucks are still in daily service in warehouses, yards and industrial sites around the world, and when something fails the difference between a quick fix and a repeat failure comes down to using the right specification. This manual gives you the actual TCM factory figures — the synchroniser operation sequence, the relief valve pressures, the clutch pedal free travel, the wheel bearing starting torque, the automatic clearance adjuster setting — so that every repair is done to the standard the truck was built to, not to a guess.

Whether you are servicing the Nissan H20 carburettor, adjusting the Isuzu C240PKJ injection timing, overhauling the synchromesh transmission, rebuilding the duo-servo wheel brakes, resealing the lift cylinder or troubleshooting an intermittent wiring fault, the procedure is here with the diagrams, the torque values and the inspection limits to support it. Independent workshops, fleet maintenance teams and owner-operators can all use it to plan a job properly, order the right parts and get the truck back into service without chasing information across scattered sources.

IMAGES PREVIEW

The manual is delivered as an instant PDF download — no shipping, no waiting for a parcel. Open it on a laptop in the workshop, a tablet at the machine or a phone in the yard, print the pages you need for the job at hand and keep the rest for reference. One download, every system, every specification.