Case 2504 International Harvester Service Manual (IH-201)

Out in the field or around the yard, this Case International Harvester is usually dragging implements, running a loader, or pulling wagons, often in dust, mud, and cold starts. This service manual helps you trace problems logically, so you’re not just throwing parts at it. Say it won’t keep oil pressure when it’s hot: instead of guessing at pumps and bearings, you’ll follow a sequence to check the gauge, verify pressure with a test setup, inspect for leaks, and only then decide what’s actually worn.

Applications & Use Cases

• Track down hard-start issues by following the fuel and ignition checks step by step, so you isolate whether it’s spark, fuel delivery, or timing.
• Chase hydraulic problems by checking pump output, routing hoses correctly, and testing valves before you condemn a cylinder.
• Verify brake or clutch faults by inspecting linkage, free play, and wear points so you don’t split the tractor for something that’s just out of adjustment.
• Bleed and align steering or hydraulic systems in the right order, which usually saves you from rework and air pockets.
• Use the wiring diagrams to trace shorts, test circuits, and clean up old “farmer fixes” without guessing.

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 to sections or keywords instead of flipping page by page.

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

A: You usually can; most folks print the pages they’ll trash with grease and keep the full file clean on their computer.

Safety Note

Always block and support the machine securely before you crawl under it or start loosening anything heavy.

Case 2504 International Harvester Index:

BELT PULLEY
BRAKES
CARBURETOR (Gas)
CARBURETOR (LP-Gas)
CLUTCH, ENGINE

COOLING SYSTEM

Radiator

Water Pump

DIESEL FUEL SYSTEM

Injection Pump and Drive

Nozzles

System Checks

DIFFERENTIAL

DIRECTION REVERSER

ENGINE

Balancer

Cam Followers

Camshaft

Connecting Rod & Bearings

Crankshaft

Cylinder Head

Engine Removal

Flywheel

Ignition Timing

Main Bearings

Oil Pump

Oil Cooler

Piston & Rings

Piston Pins

Rear Oil Seal

Rocker Arms

Timing Gear Cover

Timing Gears

Valves and Seats

Valve Guides & Springs

Valve Timing

FINAL DRIVE

Bull Gears

FINAL DRIVE CONT.

Bull Pinions

Wheel Axle Shaft

FRONT SYSTEM

Axle Main Member

Steering Knuckles

Tie Rods and Drag Links

Tricycle Type

GOVERNOR (NON-DIESEL)

HYDRAULIC SYSTEM

Control Valves

Lubrication

Pump

Regulator & Safety Valve

System Adjustments

Testing

Trouble Shooting

POWER STEERING SYSTEM

Cylinder

Flow Control & Relief Valve

Lubrication and Bleeding

Power Unit

Pump

Rotary Valve

Steering Gear

Steering Valves

Testing

Trouble Shooting

Pilot Valve

Hand Pump

POWER TAKE-OFF

Adjustments (Clutch Type)

Adjustments (Planetary Type)

Overhaul (Clutch Type)

Overhaul (Planetary Type)

STEERING, MANUAL

TORQUE AMPLIFIER

Clutch Adjustment

Clutch Overhaul

Planetary Unit

TRANSMISSION OVERHAUL

Develon