Hyster D001 H25XM, H30XM, H35XM, H40XMS Forklift Repair Manual (P/N 1459331, 897590, 897934)

This Hyster factory publication set covers the D001 H-series and C010 S-series trucks identified in the model-specific maintenance and specification sections: H25XM, H30XM, H35XM, H40XMS, S25XM, S30XM, S35XM, and S40XMS. It contains 30 PDF sections totaling 578 pages, combining truck-specific material with the Hyster component publications referenced by those sections.

• Coverage and identification: Matches the full D001/C010 serial prefixes and the eight models listed above, with publication numbers, configuration notes, maintenance schedules, capacities, and adjustment data.
• Mazda engine repair: Covers the M4-1.5G, M4-2.0G, and M4-2.5D engines, including cylinder-head and valve-train work, timing components, crankshaft and bearing inspection, piston and connecting-rod service, lubrication-system repair, and final checks.
• Powershift and drive axle work: Details the single-speed powershift transmission, torque converter and pump, forward and reverse clutch packs, control valve, differential, ring-and-pinion setup, axle shafts, hubs, bearings, stall testing, and pressure diagnosis.
• Hydraulic, mast, and cylinder service: Includes gear-pump and pump-drive repair, flow-divider and relief-valve testing, main control valve service, LFL and FFL mast repair, side-shift carriage work, lift-chain adjustment, and lift- and tilt-cylinder overhaul.
• Brake and steering repair: Covers master and wheel cylinders, service-brake assemblies, automatic adjusters, parking-brake and inching linkage, bleeding and checks, plus the steering axle, wheel hubs, steering housing, and Ross HGF control unit.
• Fuel, cooling, and electrical diagnosis: Provides gasoline carburetor and governor repair, standard LPG-system service, starter, alternator, distributor, glow-plug and cold-start testing, instrument-cluster repair, radiator and thermostat service, water-pump inspection, and troubleshooting.
• Reference data and schematics: Supplies torque tables, hydraulic and transmission test data, fluid capacities, wear and clearance limits, electrical test specifications, maintenance intervals, wiring diagrams, hydraulic schematics, exploded views, and fault-isolation charts.

System Overviews and Component Breakdowns

The engine chapters show construction differences that matter when selecting parts and procedures. The M4-1.5G uses a timing chain, the M4-2.0G a cogged timing belt, and the M4-2.5D timing gears for the camshaft and fuel-injection pump. Internal repair reaches the cylinder head, camshaft and valves, crankshaft and main bearings, pistons and connecting rods, oil pump, flywheel, and ring gear. The diesel section adds the fuel filter, injection pump, injectors, and injection timing. Engine and transmission removal is handled in the included Frame section rather than repeated in each engine chapter.

The powershift material covers the converter circuit, pump, forward and reverse clutches, direction and inching controls, control valve, output gearing, differential, disassembly and inspection, stall and pressure tests, and ring-and-pinion setup. The torque converter is treated as a non-repairable assembly; the pump and transmission internals are covered for repair. Hydraulic sections trace the circuit from the tank and gear pump through the steering flow divider, relief valves, main valve, lift and tilt cylinders, and steering cylinder. Mast coverage includes standard and side-shift carriages, forks, load rollers, wear pads, shims, chains, sheaves, hoses, and repair of two-stage limited-free-lift, two-stage full-free-lift, and three-stage full-free-lift assemblies.

Brake coverage follows the system from the reservoir and master cylinder through the wheel cylinders, shoes, drums, automatic adjusters, parking-brake linkage, inching/brake pedal, bleeding, inspection, and troubleshooting. Steering material covers axle removal, hubs and tapered-roller bearings, kingpins, tie rods, steering-cylinder repair, the Ross HGF Hydraguide unit, steering housing, and instrument cluster. Fuel and electrical sections address gasoline and LPG delivery components, engine-specific starting and charging systems, ignition on the gasoline/LPG engines, and the diesel glow-plug and cold-start circuits. The cooling chapter covers radiator service, thermostat and pressure-cap operation, water-pump inspection, fan and shroud condition, cleaning, exhaust-leak checks, and overheating diagnosis.

Technical Reference Data and Diagrams

Specification tables cover engine identification, compression and valve data, fuel-injection settings, hydraulic pump output and relief tests, transmission stall data, mast performance, capacities, tire data, fastener torque, truck weights, wear limits, and electrical test values. The maintenance publication adds daily checks and scheduled procedures for brakes, steering, lift chains, filters, fluids, valve clearance, injection timing, hydraulic oil and filter changes, wheel and tire work, and engine break-in.

Named drawings include the Wiring Schematic for the Mazda M4-2.0G Gasoline or LPG Engine, Wiring Schematic for the Mazda M4-2.5D Diesel Engine, Lights Wiring Schematic, US, Instrument Cluster Wiring Schematic, Electrical Schematic for MONOTROL, and Hydraulic Schematic for the Transmission (Neutral). Separate hydraulic-system arrangement and circuit drawings support pump, control-valve, steering, lift, tilt, and auxiliary diagnosis.

Coverage and Repair Notes

Match the truck by its complete serial prefix. The full designation is C010; older revision notes sometimes shorten it to “C10.” The 1993 and 1995 dates printed in section histories are publication and revision dates, not a blanket model-year range. Although one specifications footer retains broader S/H25–45XM wording, its model table and the D001/C010 maintenance cover identify the eight exact models listed above.

The specifications mark the M4-1.5G configuration as Far East-only, and the Frame section states that the M4-2.5D diesel is not used in the covered S-series trucks. The separate Aisan closed-loop LPG chapter is labeled for D010/E001 and D187/H177 applications, so it should not be treated as blanket D001/C010 coverage.

Several repair cautions are particularly useful. The left- and right-side brake adjusters use opposite thread directions; reversing them makes shoe clearance increase during brake application. Each powershift clutch pack has a directional concave separator plate and chamfered thrust washers, and incorrect orientation can alter clutch clearance and damage the pack. The Ross HGF unit depends on precise groove alignment, while direct vise clamping can distort its machined housing and impair steering operation.

PDF Section Breakdown

• Truck, chassis, and reference material — 167 pages: Periodic Maintenance, 60; Brake System, 19; Drive Axle, 8; Frame, 18; Hydraulic System, 10; Main Control Valve, 13; Diagrams, 14; Capacities and Specifications, 9; Cooling System, 7; Metric and Inch (SAE) Fasteners, 9.
• Engine, fuel, and electrical material — 211 pages: Mazda M4-2.5D Engine, 35; Mazda M4-2.0G Engine, 26; Mazda M4-1.5G Engine, 21; M4-2.5D Starting/Charging Electrical Systems, 14; M4-2.0G Electrical Systems, 18; M4-1.5G Electrical Systems, 14; Gasoline Fuel System, 14; M4-2.0G LPG Fuel System, 23; Standard LPG Fuel System, 18; Aisan Closed-Loop LPG Fuel System, 28.
• Transmission, mast, and steering material — 200 pages: Single-Speed Powershift Transmission, 32; Mast Repair, 55; Mast Description and Operation, 8; Lift Cylinders, 32; Tilt Cylinders, 15; Steering Control Unit, 27; Steering Axle, 9; D001/C010 Steering Housing, 4; Wider-Model Steering Housing and Control Unit, 11; Instrument Cluster, 7.

Publication numbers printed on section covers are P/N 1459331, 897590, 897934, 897558, 897556, 897559, 897591, 910119, 910102, 910442, and 1495954. Core section identifiers include 100 SRM 545; 600 SRM 496, 537, and 538; 1300 SRM 543; 1400 SRM 542; 1800 SRM 540; and 8000 SRM 531, 544, and 546.

Mast, brake, hydraulic, wheel and tire, LPG, and powertrain work involves stored energy, heavy assemblies, flammable fuel, and major changes in truck stability. A qualified technician should verify the serial number and installed configuration, block and restrain the truck correctly, release hydraulic pressure, isolate fuel and electrical power, and inspect the machine’s condition before repair work begins.