PIPE-EXTENSION 2502984 - Caterpillar

Disassembly Procedure
Start By:
Remove the belt tightener. Refer to Disassembly and Assembly, "Belt Tightener - Remove".
Illustration 1 g00605798
Remove four bolts (1) and the washers that secure cover (2) to idler pulley (3). Remove cover (2) and the gasket from idler pulley (3).
Illustration 2 g00605799
Remove two bolts (4) and the washers that secure retaining washer (5) to the shaft. Remove retaining washer (5) from the shaft. Remove idler pulley (3) from the shaft.
Illustration 3 g00605800
Position idler pulley (3), as shown. Remove roller bearing (6) from idler pulley (3).
Illustration 4 g00605801
Remove spacer (7) from idler pulley (3).
Illustration 5 g00605802
Reposition idler pulley (3), as shown. Remove lip seal (8) from idler pulley (3).
Illustration 6 g00605803
Remove roller bearing (9) from idler pulley (3).
Illustration 7 g00605805
Remove spacer (11) from shaft (10).
Illustration 8 g00605806
Remove O-ring seal (12) from shaft (10).
Illustration 9 g00605807
Remove clevis pin (14), pin (15) and the washers that secure spring (13) to belt arm assembly (16). Remove spring (13) from belt arm assembly (16). Repeat this procedure for the remaining spring.
Illustration 10 g00605808
Remove relief fitting (18) from belt arm assembly (16). Remove dowel (17) in order to remove shaft (10) from belt arm assembly (16). Remove shaft (10) from belt arm assembly (16).
Illustration 11 g00605809
If necessary, remove bushing assembly (20) from belt arm assembly (16).