Case 430/440 Skid Steer Loader and 440CT Compact Track Loader Repair Manual (P/N Bur 87634767)

This 976-page factory repair manual PDF covers Case 430 and 440 skid steer loaders and the 440CT compact track loader with mechanical or pilot controls, including Tier 3 and Cab Up-Grade configurations. CNH publication Bur 87634767 was issued in January 2007 and revised in December 2007; the file contains 968 standard-format pages plus eight full-size electrical and hydraulic schematic sheets. Its teardown, pressure-testing, electrical pin-check, and refrigerant-service content is suited to experienced technicians and properly equipped repair shops.

• Engine and cooling-system coverage handles radiator and engine removal and installation, with separate procedures for the 430 Tier 3 and 440/440CT Tier 3 layouts. Internal engine and fuel-system repair is outside this volume and is referred to Engine Service Manual 6-74500, Tier 3 Engine Repair Manual 87693888 for the 430, and 87630273 for the 440/440CT.

• Hydrostatic power-train chapters explain ISO-pattern and H-pattern pilot travel operation, then cover fault isolation, charge/flow and circuit-relief testing, pilot-machine DA checks, pump adjustment, tandem-pump and hydraulic-motor removal, and piston-pump teardown, inspection, and reassembly.

• Driveline and 440CT undercarriage procedures address Tier 3 drive couplings, single- and two-speed drive motors, drive chains and axle assemblies, spring-applied/hydraulically released park brakes, rubber-track removal and tensioning, plus drive sprockets, idlers, rollers, and 440CT final-drive motor removal.

• Loader-hydraulic repair content covers equipment and optional high-flow pumps, loader-control-valve seal replacement, lift and bucket cylinders, pressure and flowmeter testing, closed-loop contamination cleanup, flat-face couplers, ride-control accumulator service, and optional self-level, hydraulic-coupler, and high-flow circuits.

• Control and mounted-equipment work ranges from loader-function and neutral adjustment to pump-shim setup, dynamic straight tracking, throttle and seat-bar adjustments, pilot-control-valve replacement, loader-frame inspection, mechanical and hydraulic attachment couplers, ROPS/cab service, and cutting-edge replacement.

• Electrical and climate-control diagnosis supplies model-specific fault charts, fuse and relay layouts, circuit readings, connector-cavity data, Electronic Instrument Cluster setup and troubleshooting, battery/starter tests, and R-134a A/C diagnosis, gauge testing, refrigerant recovery, evacuation/recharge, compressor/clutch repair, and evaporator/condenser service.

Configuration-Specific Schematics

The eight full-size sheets at the end of the PDF are identified as schematic-set part numbers 5-5351 and 5-9620. Notable references include the 430 Tier 3/Cab Up-Grade electrical schematic, the 440/440CT Tier 3/Cab Up-Grade electrical schematic, starter-relay and instrument-cluster connector tables, the 3-Spool Loader Control Valve schematic, and dedicated hydraulic frames for mechanical, ISO-pattern pilot, and H-pattern pilot machines. Optional two-speed travel, high flow, hydraulic coupler, secondary auxiliary, self-level, ride-control, heater/HVAC, lighting, and interlock circuits are shown in their system context rather than as isolated component sketches.

Test Data and Shop-Level Procedures

Reference data is split where the machine build matters. The general section provides separate standard and Tier 3 fluid/lubricant tables, standard fastener and hydraulic-fitting torques, and metric conversions. Component chapters add hydrostatic and hydraulic pressure/flow specifications, check sheets, pump and drive-motor inspection data, chain and track adjustment specifications, electrical test values, and R-134a pressure-temperature and charge information for the original and Cab Up-Grade systems.

Factory tool callouts include the OEM-1239/CAS-10280 flowmeter, CAS-1804 pressure test kit, CAS-10899 accumulator charging kit, CAS-1456 gland wrench, and OEM-1418 refrigerant recovery/recharging station. These equipment requirements show the repair depth covered by the manual.

The manual also flags repair traps that matter during reassembly. Contamination left in the closed hydrostatic loop can damage pumps and motors, while an unsupported axle can drop between press-fit stages and damage the outer seal. Before working beneath raised lift arms or opening hydraulic or A/C circuits, engage the specified loader support, relieve stored pressure, and use the required recovery and test equipment.