Case Models W400D Harvester Service Manual (IH-10)

Out in the field, this W400D harvester’s working in dust, chaff, heat, and usually on days when you can’t afford downtime. This service manual helps you trace problems step by step so you fix what’s actually wrong instead of just throwing parts at it. Say the machine starts losing power under load: you’d follow the fuel and air diagnostics, check each stage, verify pressures or flows where the manual tells you, and isolate whether it’s fuel delivery, governor, or something as simple as a plugged filter.

Applications & Use Cases

• Trace a no-start or hard-start by following the fuel and ignition checks in order, so you don’t miss a simple wiring or fuel shutoff issue.
• Check and adjust brakes and clutch using the given sequences, then test pedal travel and engagement before you head back to the field.
• Verify cooling system health by routing your checks from fan and belts through radiator and water pump, so you don’t cook the engine on a hot day.
• Isolate belt and pulley problems by inspecting alignment, tension, and wear, then re-align and test under load instead of guessing.
• Bleed, inspect, and test hydraulic or control linkages so levers respond cleanly and don’t wander on you during harvest.

FAQ

Q: Is this a PDF I can search on my laptop or phone?

A: Yes, it’s typically a searchable PDF, so you can jump straight to sections by keyword instead of scrolling forever.

Q: Can I print just a few pages to take out to the machine?

A: You usually can; most folks print the procedures they’re working on so they can grease up the paper, not their phone.

Safety Note

Always support raised headers or heavy components with proper stands before you crawl under or reach into anything you’re inspecting or testing.

Case Models W400D Harvester Index:

BELT PULLEY

BRAKES

CARBURETOR (Not LP-Gas)

CARBURETOR (LP-Gas)

CLUTCH, ENGINE

COOLING SYSTEM
Fan
Radiator
Water Pump

DIESEL FUEL SYSTEM
Air Restriction Valve
Energy Cells
Filters and Bleeding
Injection Pump
Nozzles
Precombustion Chambers
Quick Checks
Trouble Shooting

DIFFERENTIAL

ENGINE
Cam Followers
Camshaft
Connecting Rods and Bearings
Crankshaft
Cylinder Head
Engine Removal
Flywheel
Ignition Timing
Injection Timing
Main Bearings
Oil Pump
Pistons and Rings
Piston Pins
Piston Removal
Rear Oil Seal
Rocker Arms
Timing Gear Cover
Timing Gears
Valves and Seats
Valve Guides and Springs
Valve Timing

FINAL DRIVE
Axle Shafts
Bull Gears
Bull Pinions

FRONT SYSTEM
Axle Main Member
Steering Knuckles
Tie Rods and Drag Link
Tricycle Type

GOVERNOR

HYDRAULIC SYSTEM
Control Valves
Lubrication
Pump
Regulator and Safety Valve
Testing
Trouble Shooting

POWER STEERING SYSTEM
Cylinder
Flow Control and Relief Valve
Lubrication and Bleeding
Motor
Pump
Steering Gear
Steering Valves

PTO (Non-Continuous)

PTO (Independent Type)
Drive Shaft
Driven Shaft
Extension Shaft
Overhaul Rear Unit
Reactor Bands

REAR AXLE

STEERING GEAR (Manual)

TORQUE AMPLIFIER
Clutch Adjustment
Clutch Overhaul
Planetary Unit

TRANSMISSION OVERHAUL

Develon