Case 430 440 Skid Steer Service Manual – Bur 6-78960 PDF Download

Description

Case 430 and 440 Skid Steer Service Manual – Bur 6-78960

This is the complete Case 430/440 Skid Steer Service Manual, publication form number Bur 6-78960. It is the full workshop reference used for engine and radiator removal, hydrostatic drive service, hydraulic troubleshooting, electrical diagnostics, brake work, loader frame and attachment coupler service, plus the ROPS, heater and air conditioning systems. The manual also includes the hydraulic and electrical schematic set that ties every circuit and circuit path together.

The 430 and 440 are compact skid steer loaders. This service manual covers both, with separate sections where capacities or components differ. Some specification tables also list the 410 and 420 machines – the engine crankcase oil capacity table is one example – so the manual is useful across the wider Case skid steer family for certain values.

File Details

• Manual type: Service Manual
• Brand: Case (CNH America LLC)
• Models covered: 430 and 440 Skid Steer Loaders (410 and 420 referenced in some specification tables)
• Language: English
• Page count: 524 pages
• File format: PDF
• Publication number: Bur 6-78960

Chapters Covered

• General
• Engines
• Fuel Systems
• Electrical
• Power Train
• Brakes
• Hydraulics
• Mounted Equipment
• Schematic Set

General

The General tab collects the fluids and lubricants specification (fuel tank capacity, cooling system capacity, hydraulic system capacity, chain compartment capacity, engine crankcase oil capacity for the 410, 420, 430 and 440 machines), the standard decimal and metric torque specifications, the torque values for steel hydraulic fittings, and the metric-to-U.S. conversion chart. This is the section you reach for before any job where a fastener torque or fluid type matters.

Engines

Covers engine and radiator removal and installation for the 430 and 440. Step-by-step procedures include draining the cooling system, removing the hood and rear access door, disconnecting the air cleaner and muffler, removing the fan and shroud, and separating the engine from the tandem pump. The engine repair section itself refers to the separate Engine Service Manual (6-74500) – this tab handles the removal and installation in the machine.

Fuel Systems

Fuel system repair is handled by the Engine Service Manual (6-74500). This tab is the section index pointing to that document.

Electrical

The electrical tab contains the complete electrical system specifications, troubleshooting tables and the full electrical schematic set across 26 frames. It covers the battery, starter and starter solenoid, alternator, starting relay, ignition switch, main power relay, options power relay, primary and options fuse blocks, interlock relay, seat switch, seat bar switch, loader valve solenoids, brake release solenoid, instrument cluster, hydraulic filter pressure switch, hydraulic oil temperature sender, engine coolant temperature sender, air filter restriction switch, fuel level sender, engine oil pressure switch, work lights, road lights, horn, backup alarm, cab door switch, high flow switch, ride control solenoid, rotating beacon, accessory outlet, hydraulic coupler switch and solenoid, dome lamp, fan speed switch, turn signals and the auxiliary electric attachment circuit. Connector pinouts and cavity tables are included for the major connectors.

Power Train

This is the heart of the manual for drive-related work. It opens with hydrostatic system troubleshooting (charge pressure/flow check, circuit relief valve pressure check, diagnosis of one-transmission-works conditions and lack-of-power complaints), then moves into removal and installation of the hydrostatic components: the tandem (hydrostatic) pump, hydraulic drive motor, two speed valve, drive coupling, piston pump, single speed and two speed drive motors, sprockets, chains and axle assemblies, and wheels and tires. Specifications in this section list the Sauer/Sundstrand tandem axial piston pump Model 46, the Rexroth MCR05 drive motors for the 430/440 (and MCR03 for the 410, Eaton VIS40 for the 420), charge pump displacement, charge pressure, relief pressure and torque values.

Brakes

The brake section covers removal and installation of the park brake components. The park brake is a wet disc, spring-applied, hydraulic-release design integrated into the drive motor assembly. The section also covers the brake solenoid valve, release pressure specification and mounting details.

Hydraulics

The hydraulics tab is large. It includes hydraulic system troubleshooting and schematics across eight frames, a dedicated section on cleaning the hydraulic and hydrostatic system after contamination or component failure, removal and installation of hydraulic components (gear pump, loader control valve, filter base, high flow pump, high flow valve, high flow accumulator, ride control accumulator, ride control solenoid valve, hydraulic coupler solenoid and check valve, oil cooler, high flow oil cooler, self leveling valve), the gear pump disassembly and assembly, cylinder service for the loader lift and bucket cylinders, flat face quick coupler service, and the ride control accumulator charging and discharge procedure. Specifications include main relief pressure, port relief settings, cycle times, gear pump displacement and flow, and cylinder torque values.

Mounted Equipment

This tab covers the operator-facing and attachment-side systems: pedals and levers (throttle adjustment, control linkage adjustment, seat bar height, auxiliary hydraulic pedal), the loader frame (bucket cutting edge replacement, loader frame removal and installation), the mechanical and hydraulic attachment coupler, the ROPS canopy, seat, seat belts and operators compartment (including window removal and installation), the deluxe heater, and the complete air conditioning service suite: troubleshooting for R-134a systems, gauge testing, refrigerant recovery, compressor removal, system evacuation and recharging, and component service for the compressor, evaporator, expansion valve, condenser and receiver-drier.

Schematic Set

A hydraulic and electrical schematic foldout is included in the rear pocket of the printed manual. The PDF retains these schematic pages, so the wiring and hydraulic circuits are available directly in the file.

What This Manual Lets You Do

With the Case 430/440 Skid Steer Service Manual in hand you can pull and reinstall the engine, service the radiator and cooling system, diagnose hydrostatic drive faults with real charge pressure and relief pressure values, remove and rebuild the tandem pump and drive motors, set chain deflection, service the axles and wheel bearings, diagnose and repair the electrical system against a full schematic set, service the loader control valve, gear pump, cylinders, quick couplers and accumulators, replace cutting edges, service the ROPS, heater and air conditioning systems, and much more.

Having the correct procedures and specifications matters. Torque values, pressure settings, charge flow, oil capacities and adjustment values are what separate a repair that lasts from one that comes back. The troubleshooting tables in the hydrostatic and hydraulic sections walk you through the diagnostic sequence – check linkage, check charge pressure, check circuit relief, then decide whether the problem is a leaky servo or internal leakage – so you’re not guessing at parts.

IMAGES PREVIEW

This is a downloadable PDF. Payment is instant, there is no shipping and no waiting. The file opens on any device – laptop, tablet, phone or shop computer – and the pages print cleanly for a binder or a wall copy. Keep the full manual on the shop computer and a printed copy of the sections you use most.