Case 230 International Harvester Service Manual (IH-201)

Out in the field or around the yard, that Case 230 usually spends its life pulling implements, running a belt pulley, or doing loader work in dust, mud, and cold starts. This service manual helps you trace problems step by step instead of just guessing—engine, fuel, brakes, clutch, cooling, all that. Say it starts hard, smokes, and won’t hold power under load: you’ll follow a sequence to check fuel delivery, verify timing, inspect the governor, and test compression before you buy a single part.

Applications & Use Cases

• Track down a no-start by tracing ignition or fuel on gas or LP setups in a set order, so you isolate the fault instead of shotgun-replacing parts.
• Chase overheating issues by checking thermostat operation, radiator flow, and water pump condition, then bleeding air and confirming proper coolant route.
• Sort out weak brakes or clutch slip by inspecting linkage, checking adjustment points, and verifying wear limits before you tear anything apart.
• Dial in carburetor problems by following the test sequence for flooding, lean surge, and rough idle, then aligning linkage and re-checking under load.
• Plan a full service—lubrication, tune-up, cooling system—so you don’t miss hidden filters or bleed points.

FAQ

Q: Is this manual searchable, or do I have to flip pages every time?

A: The digital versions are usually searchable, so you can jump right to “brakes” or “carburetor” instead of scrolling forever.

Q: Can I print just a few sections to take to the tractor?

A: Yeah, most folks print the systems they’re working on, stick them in a sleeve, and keep the clean original file on their computer.

Safety Note

Always block the tractor securely and bleed off any stored pressure before you crawl under it or crack open fuel or hydraulic lines.

Case 230 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