BIT-ROCK 2711733 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     -     Breather Tool     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01339595
Breather tool
To remove the breather body, Tooling (A) must be used. The tool should be fabricated from 3.1 mm (1/8 inch) steel stock. The dimensions for the tool are given in Illustration 1. All dimensions are shown in millimeters.
Illustration 2 g01339597
Illustration 3 g03704554
Note: Illustration 3 shows the later type of crankcase breather cover that is installed in the valve mechanism cover. The later type of crankcase breather cover is not serviceable.
Illustration 4 g01339688
Loosen clamps (11) and remove hose (12) from cover (1) and from tube (13) .
Carefully pry cover (1) from breather body (4) .Note: Note the orientation of the outlet.
Remove gauze (2) from breather body (4) .
Remove O-ring seal (3) from breather body (4) .
Use Tooling (A) in order to unscrew breather body (4) from adapter plate (8) .
Remove O-ring seal (5) from breather body (4) .
Remove bolts (6) and washers (7) from adapter plate (8) .
Remove adapter plate (8) from valve mechanism cover (10) .
Remove O-ring seal (9) from adapter plate (8) .