1999 Toyota Forklift 7FGU/7FDU15-32 & 7FGCU20-32 Series Service Manual

• Details the 1999 Toyota Forklift 7FGU/7FDU15-32 and 7FGCU20-32 series, including pneumatic and cushion tire models equipped with 4Y gasoline or 1DZ-II diesel engines.
• Official Toyota Industrial Equipment publication from October 1999 (referencing supplemental engine manuals CE602-1 and CE618-1), acting as the primary service reference for the 7-series build.
• Delivers a 572-page PDF of technical data across 15 section indexes, outlining engine, transmission, steering, and material handling systems.
• Includes exploded-view diagrams for torque converter assemblies, hydraulic control valve circuits, and electrical schematics for the SAS and vehicle speed controllers.
• Documents factory specifications for both standard and optional two-speed torque converter systems.
• Covers mechanical overhauls and component inspections for the oil pump, catalytic muffler, mast cylinder, inching valve, direction switch, brake master cylinder, and wheel cylinder.
• Provides exact workshop guidelines for EZ pedal adjustments, V-belt tensioning, idle speed calibrations, torque converter oil pump servicing, and comprehensive Wiring diagrams.

What the Manual Documents:

This service manual delivers a complete breakdown of the maintenance and mechanical systems for the 7FGU/7FDU15-32 and 7FGCU20-32 series. Technical chapters outline operational parameters, engine performance curves, and specific removal and installation workflows. The manual thoroughly analyzes the power transmission system, torque converter configurations, propeller shafts, front and rear axles, and hydraulic control valves. Instead of outsourcing complex jobs to a dealership, technicians can follow the step-by-step guides to execute in-house diesel fuel system air bleeding, torque converter stall tests, and no-load maximum speed (NMR) adjustments. Having these exact factory tolerances and pressure standards on hand eliminates diagnostic guesswork, directly streamlining the repair workflow and reducing service bay downtime.

Working on industrial material handling equipment involves significant physical risks; always follow the safety protocols, lift points, and pressure relief procedures detailed in these chapters before starting any teardown. Additional sections focus on steering, braking, body, and material handling mast systems. You will find specific diagnostic routines for the System of Active Stability (SAS), electrical circuit testing, and error code troubleshooting for the vehicle speed controller. Periodic maintenance charts and replacement intervals ensure proper upkeep for the 4Y and 1DZ-II powerplants.

Specification Highlights:

Engine compression ratios are strictly documented: 8.8 for the 4Y and 21.5 for the 1DZ-II diesel. Clutch operating pressure for the torque converter is set to 161 psi (1108 kPa) at 2000 rpm. Maintaining the 151.71 cubic inch 1DZ-II requires exact adherence to the provided injection timing and compression data. Fluid requirements are clearly listed, specifying GM Dexron II for the transmission and SAE85W-90 hypoid gear oil for the differential.

A dedicated reference table categorizes standard bolt torque values by class and diameter. Cylinder head bolt torque sequences are provided in the engine sections for accurate reassembly. Hydraulic oil volumes for the V mast range from 29 to 38 liters, depending on the exact model. This 1999 production cycle manual delivers the necessary mechanical, hydraulic, and electrical data to service the entire 15–32 series range and finalize any repair with factory precision.