DIFFERENTIAL & BEVEL GEAR GP 2385225 - Caterpillar

Disassembly Procedure for the Front Idler on CIPI Undercarriage Arrangements which are Based on 330 and 330B Track Type Excavators
Start By:
Remove the front idler and the recoil spring as a unit. Refer to Disassembly and Assembly, "Front Idler and Recoil Spring - Remove" in this manual.
Thoroughly clean the outside of the front idler prior to disassembly.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Remove the fill/drain plug from the front idler. Drain the oil from the idler into a suitable container for disposal. The capacity of the idler is approximately 555 30 mL (18.8 1.01 oz).
Illustration 1 g00494526
Place the front idler on the idler's side, as shown. The weight of the front idler is 208 kg (460 lb).
Remove two spring pins (1) from bearings (2). Fasten a hoist to two bearings (2). Remove the bearings from the shaft of the front idler. The weight of each bearing is approximately 34 kg (75 lb).
Illustration 2 g00494532
Remove Duo-Cone seals (3) from bearings (2) .
Illustration 3 g00494539
Remove shaft (5) from the front idler.
Illustration 4 g00494546
Remove two O-ring seals (4) from shaft (5) .
Illustration 5 g00494550
Remove Duo-Cone seal (6) from each side of the front idler.
Illustration 6 g00494553
Remove bushings (7) from each side of the idler.