CIPI UNDERCARRIAGE Arrangements: 9Q-5262, 191-4041, and 204-9207 Caterpillar

Assembly Procedure

Note: Make sure that all of the parts of the hydraulic track adjuster are clean and free of dirt and debris prior to assembly.

1. Make sure that all of the passages in the piston assembly are filled with 5P-0960 Molybdenum Grease. Make sure that air is not trapped in the passages in the piston assembly.

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Illustration 1	g00526455

2. Install relief valve (12) in the body of the piston assembly. Do not tighten the relief valve.

3. Install fill valve (13) in the body of the piston assembly. Tighten the fill valve snugly. Do not torque the fill valve.

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Illustration 2	g00526454

4. Install plate (10). Install two bolts (11) which secure plate (10) .

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Illustration 3	g00526453

Note: Completely fill the seal grooves in the piston assembly with 5P-0960 Molybdenum Grease. The grease will displace air when the O-rings and the backup rings are installed.

5. Install two backup rings (7), two backup rings (8) and two O-ring seals (9) on piston assembly (5) .

   Note: O-rings and backup rings must be installed in the correct position in order to ensure the correct operation of the hydraulic track adjuster. Backup rings are distinguished by the color of the ring. Backup rings (7) are black in color. Backup rings (8) are brown in color.

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Illustration 4	g00526451

Note: Completely fill the seal groove for O-ring (3) and backup ring (4) in cylinder (2) with 5P-0960 Molybdenum Grease. The grease will displace air when the O-ring and the backup ring are installed.

6. Install O-ring (3) and backup ring (4) in cylinder (2) .

7. Apply 5P-0960 Molybdenum Grease in the groove for lip seal (6). Use Tooling (A) to install lip seal (6). Install lip seal (6) until the seal is 0.5 ± 0.5 mm (.02 ± .02 inch) below the surface of cylinder (2). Install lip seal (6) with the lip toward the outside of cylinder (2) .

8. Check the condition of the threads on rod (1). If the threads are damaged or worn, replace rod (1) with a new part. Put a small amount of 5P-0960 Molybdenum Grease on the sliding surface of rod (1). Install rod (1) in cylinder (2) .

9. Fill the cavity of cylinder (2) with 5P-0960 Molybdenum Grease .

10. Put a small amount of 5P-0960 Molybdenum Grease on the sliding surface of piston assembly (5). Put a minimum of 60 cc (4 in³) of 5P-0960 Molybdenum Grease on the end of piston assembly (5). This grease will prevent air from displacing grease in the cylinder during the installation of the piston. Make sure that the grease covers backup rings (7) and (8) and O-ring (9) .

11. Center piston assembly (5) in cylinder (2). Insert the piston assembly into the cylinder.

    Note: It may be necessary to use a soft faced hammer to install the piston assembly into the cylinder.

12. Make sure that grease is expelled from the vent hole for the relief valve. Tighten relief valve (12) to a torque of 34 ± 5 N·m (25 ± 4 lb ft).

13. Add approximately 5 cc (.3 in³) of 5P-0960 Molybdenum Grease through fill valve (13). Apply a force to piston assembly (5) and open fill valve (13) in order to purge all the air from the hydraulic track adjuster.

14. Tighten fill valve (13) to a torque of 34 ± 5 N·m (25 ± 4 lb ft).

End By: Assemble the recoil spring. Refer to Disassembly and Assembly, "Recoil Spring - Assemble" in this manual.