Case Farmall 110A, 120A, 125A, 130A, 140A Tractor Repair Manual

Table of Content (Service Manual)

Introduction
Engine
Clutch
Transmission
Four Wheel Drive
Front Axle
Rear Axle
Power Take Off
Brake and Controls
Hydraulic Systems
Hitches, Drawbars and implement couplings
Steering
Cab climate control
Electrical System
Platform, cab, bodywork and decals
Special Tools
Manual Extract: Powered rear axle

There are two rear axles available. The standard rear axle uses three planetary gears in the final drive and is available on the Farmall 110A and Farmall 120A. The heavy-duty rear axle uses four planetary gears and is available on the Farmall 125A and Farmall 140A. Both rear axles have an electrohydraulic differential lock and hydraulic brakes.

The rear axle, mounted on the rear of the transmission, connects the power from the engine and the transmission to the rear wheels. The following components are contained within the rear axle: • Ring and pinion of the differential

Differential
Electrohydraulic differential lock
Hydraulic brakes
Final reduction gears
Wheel axle shafts
Power Take-Off (PTO) components
Park/hand brake
Fixed displacement hydraulic pumps
The power from the output shaft of the transmission passes through the spiral teeth of pinion by means of a coupler.

The pinion is in the front part of the rear axle housing. The pinion is mounted in two, preloaded, cone and cup bearings and contacts the ring gear of the differential. The ring gear is riveted to the differential carrier, which is supported between tapered roller bearings mounted in the rear axle housings.

NOTE: In service, bolts and nuts replace the rivets.