Hyster C108, E40XL, E50XL, E60XL Forklift Service Manual (P/N 897072)

• Covers the Hyster E40XL, E50XL, and E60XL electric forklifts in the C108 series; shared factory sections also use the metric E/J2.00–3.00XL (E/J40–60XL) designations.
• Separates Cableform Mark XI, EV-100, EV-100LX/LXT/LXP/LXD, and EV-200LX/LXT controller configurations, including plugging-only and regenerative braking, field weakening, and SCR-controlled hydraulic pump variants.
• Details controller fault isolation through Static Return to Off (SRO) and PMT logic, sequence-of-operation checks, diagnostic hand-set status and function codes, control-card and SCR testing, contactor repair, and system-specific adjustment procedures.
• Includes before/after November 1987 wiring, connector and pin-location views, battery-indicator and lift-interrupt circuits, traction schematics, and hydraulic system diagrams.
• Addresses differential and speed-reducer repair, drive-axle and wheel-bearing service, brake adjustment and bleeding, main control valve and hydraulic pump diagnosis, steering axle work, and Hydraguide steering control repair.
• Provides mast and cylinder repair coverage for Vista and conventional two-, three-, and four-stage configurations, side-shift carriage, lift chains, load rollers and shims, lift cylinders, and tilt cylinders.
• 857-page PDF set in 33 factory sections: 414 electrical/controller/diagram/instrument pages; 145 frame/drivetrain/brake/hydraulic/steering pages; 167 mast/cylinder pages; and 131 motor/battery/maintenance/specification/fastener pages.

Publication Structure and Controller Identification

The Cableform publications are P/N 897071 / 2200 SRM 289 and P/N 897072 / 2200 SRM 290. P/N 897076 / 620 SRM 294 identifies the separate 27-page DC Motor Maintenance section rather than the entire set.

The controller material is organized around the actual build differences in the XL electric range. Irvine-built trucks produced before November 1987 use the Cableform Mark XI system, while Berea-built trucks use EV-100. The documentation then identifies the revised EV-100 configuration fitted at both plants after the November 1987 production change. Separate diagrams distinguish 36–48-volt and 72–80-volt systems, regenerative and non-regenerative traction circuits, field-weakening arrangements, one- and two-pump-motor hydraulic systems, SCR or contactor pump control, and battery indicators with or without lift interrupt.

The Cableform chapters explain the power block, logic box, contactor panel, SCR pulse control, traction and hydraulic pump circuits, current limiting, SRO/fault-detector operation, plugging, regenerative braking, and field weakening. Their companion troubleshooting material covers numbered fault routines, logic-box plugs and connector pins, SCR and diode checks, contactor repair, accelerator-potentiometer and switch testing, and controller adjustments. The EV-100 publications divide description and operation, repair and adjustment, and troubleshooting into separate factory sections. The EV-100/EV-200 diagnostic hand-set manual adds status and function codes, instrument-panel display operation, control-card checks, installed and bench testing, and controller-specific fault tables.

Named technical drawings include the Cableform Motor Controller Schematic, Sequence of Operation, Terminal and Pin Arrangements for the Logic Box Connectors, EV-100 Motor Controller Schematic (After November 1987), EV-100LX Regenerative and Field-Weakening Wiring Diagram, and Hydraulic Schematic, All Models.

Mechanical, Hydraulic, and Mast Repair

This set is not limited to controller theory. The drivetrain material covers the differential, speed reducer, axle shafts, wheel bearings, and three wheel-mount arrangements, with removal, disassembly, inspection, reassembly, and installation procedures. Brake chapters address the master cylinder, wheel cylinders, shoes, pedal linkage, parking brake, optional seat brake, adjustment, bleeding, and troubleshooting. Frame service includes the counterweight, overhead guard, hydraulic tank, battery restraint, traction-motor removal, and related access components.

Hydraulic and steering sections cover the main pump, tank and filter, main control valve, auxiliary solenoid valve, relief-pressure testing, standard and on-demand power steering, steering axle, steering cylinder, optical encoder/activator components, and the Ross HGF Hydraguide steering control unit. Mast coverage spans two-stage limited free-lift, two-stage full free-lift, three-stage full free-lift, and four-stage assemblies. It also includes carriage and fork work, side-shift service, lift-chain inspection and adjustment, load-roller shimming, hose arrangements, and lift- and tilt-cylinder repair.

Motor, Battery, and Shop Reference

The DC motor sections cover brush and commutator inspection, brush replacement and seating, commutator stoning, polishing, turning and undercutting, motor disassembly and assembly, and armature/field tests for opens, shorts, and grounds. The battery material explains lead-acid construction, specific-gravity checks, charging, charger selection, and routine care. Supporting sections provide maintenance schedules, controller and motor inspection intervals, battery service, torque tables, fluid-capacity data, hydraulic pressure-test specifications, battery size and weight data, electrical test values, and fastener identification.

Specific shop references include the AMP connector-pin removal tool P/N 305183-R and the Ideal Company brush seater and commutator stone No. 23-007M, or an equivalent. The motor chapter covers brush alignment checks but treats brush timing as specialist work rather than supplying the timing procedure.

The lift-cylinder material warns that the correct model-specific screw and sealing washer are required and that incorrect lowering-control-valve washer or spring assembly can cause leakage, cylinder damage, or dangerously fast lowering. The motor section flags compressed-air cleaning as a damage risk because brush dust can be driven into the bearings.

High-current battery circuits, stored controller charge, raised mast components, and pressurized hydraulics require the Hyster isolation, discharge, blocking, and pressure-relief procedures before repair work begins.