Case Models 300 Harvester Service Manual (IH-10)

Out in the field, this Case 300 harvester’s usually eating dust, stalks, and chaff all day, then getting parked until something quits. This service manual helps you trace problems step by step, so you can isolate whether it’s fuel, ignition, clutch, cooling, or brakes before you start throwing parts at it. Say it starts losing power under load—this book walks you through what to inspect, what to test, and how to verify the fault instead of guessing at the carb or pump.

Applications & Use Cases

• Track down a no-start by following the ignition and fuel checks in order, so you can isolate whether it’s spark, fuel delivery, or a simple adjustment.
• Inspect and align belts, pulleys, and linkage when you’re getting slipping or uneven drive, instead of just tightening everything and hoping.
• Check and bleed the fuel system after filter changes or running the tank dry, using the sequence they outline so you don’t trap air and chase phantom issues.
• Trace overheating complaints by routing through the cooling checks—fan, radiator, water pump—so you verify what’s actually failing.
• Test and adjust brakes and clutch engagement properly, rather than guessing at linkage length and wearing parts out early.

FAQ

Q: Is this a searchable PDF or just page images?

A: It’s typically a scanned PDF; you can usually search text, but older scans might be hit-or-miss, so plan on using the index and bookmarks too.

Q: Can I print pages to take out to the field?

A: Yeah, most folks print the sections they’re working on, slide them in plastic sleeves, and keep the full file on a tablet or laptop in the shop.

Safety Note

Always support the machine securely and kill the engine before you crawl under anything to inspect, test, or adjust.

Case Models 300 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