CIPI UNDERCARRIAGE Arrangements: 1667049, 2372904, 3Q6481, 6Z7988, 6Z7989, 9Q5032, 9Q5040, 9Q5043, 9Q5046, 9Q5047, 9Q5066, 9Q5074, 9Q5097, 9Q5098, 9Q5116, 9Q5134, 9Q5136, 9Q5142, 9Q5147, 9Q5148, 9Q5149, 9Q5172 and 9Q5204 Caterpillar

Disassembly Procedure for the Front Idler on CIPI Undercarriage Arrangements which are Based on 330 and 330B Track Type Excavators

Start By:

1. 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.

1. Thoroughly clean the outside of the front idler prior to disassembly.

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NOTICE
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.

2. 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).

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Illustration 1	g00494526

3. Place the front idler on the idler's side, as shown. The weight of the front idler is 208 kg (460 lb).

4. 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).

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Illustration 2	g00494532

5. Remove Duo-Cone seals (3) from bearings (2) .

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Illustration 3	g00494539

6. Remove shaft (5) from the front idler.

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Illustration 4	g00494546

7. Remove two O-ring seals (4) from shaft (5) .

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Illustration 5	g00494550

8. Remove Duo-Cone seal (6) from each side of the front idler.

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Illustration 6	g00494553

9. Remove bushings (7) from each side of the idler.