2002 Case 40XT / 60XT / 70XT Skid Steer Loader Technical Training Manual

This Case technical training manual covers the 40XT, 60XT, and 70XT skid steer loaders. Published by Centre de Formation Case in March 2002, it explains machine systems and component operation, with electrical troubleshooting, hydraulic tests, and hydrostatic repair adjustments.

• Electrical diagnosis: Wiring diagrams, harness testing for open circuits, shorts, and high resistance, plus component test charts with expected readings and possible faults.

• Loader hydraulics: Gear-pump flowmeter tests, main relief checks, circuit relief valve testing with a hand pump, and diagnosis of loader and auxiliary circuit leakage.

• Hydrostatic drive: Charge-pressure and circuit relief tests, servo piston centering, hydraulic neutral adjustment, system cleanup, and startup procedures after component replacement.

• Optional equipment: Bi-Directional Self-Leveling, high-flow hydraulics, ride control, hydraulic coupler controls, and optional engine shutdown instrumentation.

• Parking brakes: Mechanical pin-brake operation and optional spring-applied, hydraulically released disc brakes, including their control circuits and electrical checks.

The material is suited to technicians familiar with hydraulic pressure testing and electrical fault tracing; the documented tests require workshop instruments and, for certain procedures, two people.

System Coverage and Service Limits

The opening sections identify major components and provide engine specifications, fluid capacities, diesel-fuel guidance, and an Oil Viscosity/Temperature Ranges chart. Engine coverage does not include a complete internal overhaul procedure.

The hydraulic and hydrostatic sections combine operating explanations, component views, troubleshooting, and selected adjustment procedures. The High Range XT section listed in the introductory contents is not included in this file.

Electrical Fault Tracing and Interlocks

Fuse block layouts and connector pin assignments cover the left-hand instrument panel, standard right-hand panel, and optional engine shutdown panel. Test charts connect individual check points with expected readings and possible causes of incorrect results, helping separate wiring faults from defective switches, relays, or instruments.

The Fuel Supply System diagrams distinguish naturally aspirated and turbocharged engine circuits. The Safety Interlock System schematic shows how the seat switch, seat-bar switch, instrument clusters, and loader valve solenoids interact.

Optional-system checks extend to high-flow solenoids, brake release controls, ride control, and the hydraulic coupler release timer.

Loader Hydraulics and Self-Leveling Variants

Main Relief Valve open- and closed-position views explain pressure regulation, while loader valve diagrams trace lift, lower, float, rollback, and dump functions. The flowmeter tests compare pump output with individual circuit results to help distinguish pump wear from leakage downstream. Metric and U.S. check sheets provide space to record those readings.

The tool list identifies the OEM-1239/CAS-10280 flowmeter, CAS-1808 fitting kit, CAS-100900 hand pump, and CAS-1804 pressure test kit.

Self-leveling configurations: The 60XT uses an integral BDSL loader control valve; the 70XT uses a separate manifold block. Functional diagrams and a troubleshooting chart cover the flow divider, counterbalance valves, and electrical cancellation of self-leveling.

The auxiliary-valve service note explains how a spool left engaged after attachment removal can cause a no-start condition resembling a fuel-delivery fault.

Hydrostatic Diagnosis and Repair Adjustments

The Hydrostatic Closed Loop System drawing explains the relationship between the tandem pump, charge circuit, servo controls, and Eaton drive motors. Test-port illustrations support diagnosis of low power and faults affecting only one side of the drive.

Machine creep: The adjustment section distinguishes control-linkage problems from pump-control faults. It covers servo piston centering, the internal centering-spring lock nut, and hydraulic neutral adjustment without treating every creep complaint as a failed motor.

The cleanup section warns that contamination retained in hoses or the oil cooler can damage repaired or replacement components. The startup section addresses early pump or motor failure caused by an improper return to service.

Relieve hydraulic pressure and isolate electrical power before disconnecting lines or servicing components. Follow the manual’s loader-arm support requirements and precautions for tests performed with the engine running.

Lift-Cylinder and Fluid-Capacity Examples

The lift-cylinder reference specifies a 63.5 mm bore and a 1.05 m stroke for the illustrated loader assembly. Separate dimensions identify the bucket-orientation cylinders.

The fluid-capacity section lists 16.6 liters for the cooling system and 10.4 liters for the engine crankcase with a filter change. It also distinguishes crankcase capacity without a filter change and identifies the specified lubricants.

PDF Search, Diagram Detail, and Page Count

Text search and diagram navigation: The main text and electrical wiring labels are searchable; text embedded in some illustrations is not. Embedded bookmarks are only partly reliable because some entries lead to unrelated pages. Small wiring labels require zooming; some hydraulic drawings have visibly coarser lettering.

One printable English PDF contains 214 pages, including two cover pages, 13 blank or header-only pages, and three notes pages.