Case 480B Tractor Service Repair Manual

Table of Content (Service Manual)

1. General
2. Engine
3. Fuel System
4. Hydraulics
5. Steering
6. Power Train
7. Brakes
8. Electrical
9. Mounted Equipment
10. How it Works

Manual Extract: Pistons, Rings, Sleeves and Connecting Rods Inspection

Thoroughly clean and inspect all parts for nicks, burrs, scratches, grooves and excessive wear. All parts that are worn or damaged must be replaced.

Check the connecting rods and caps for cracks and any noticeable twist, bowed or bent condition. Replace if any one or more of these conditions exist.

Remove all carbon deposits from the piston. Be careful not to scratch the piston skirt. Remove all the carbon from the ring grooves with a ring groove cleaning tool.

Inspect the piston pins for cracks, score marks or pitting. Discard the piston pins if the polished surfaces are dull, rough or checked by acid corrosion. If the pin bore in the pistons exceeds 1.25013″, replace pistons. If the bushing in the rods exceeds 1.2524″, replace the bushings.

Clean the oil holes in the crankshaft and block. Pipe plugs at the end of each oil gallery in the block will have to be removed.
Coat the threads of the pipe plugs with Permatex #2 before installation