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BAR 9V8992 - Caterpillar

9V8992 BAR Caterpillar parts BAR
Alternative (cross code) number:
Caterpillar 9V8992 BAR
Weight: 23 pounds 10 kg.

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1. Drain the oil from the steering hydraulic tank.
Typical Example2. Disconnect lubrication lines (2) from each end of the cylinder.3. Disconnect two hoses (3) from steering cylinder (1).4. Remove the locknuts.5. Use Tooling (A) to remove the ball stud. Refer to M0080743, Tool Operating Manual, Ball Stud Breaker for the correct procedure to remove the ball stud. Repeat this step for the remaining steering cylinder ball studs.6. Use Tooling (B) to support the weight of steering cylinder (1). The weight of the steering cylinder (1) is approximately 122 kg (269 lb.). Remove steering cylinder (1). The following steps are for installation of the steering cylinder.7. Put 2P2506 Thread Lubricant on the threads and taper of the ballstuds.8. Fasten steering cylinder (1) to a floor jack. Put the steering cylinder in position, and install the nuts on the ends of the ballstuds. Tighten the nuts to a torque of 2550 100 N m (1880 75 lb.ft.).9. Connect two hoses (3) to the steering cylinder.10. Connect lubrication lines (2) to each end of the steering cylinder.11. Fill the steering system hydraulic tank with oil to the correct level. See the Maintenance Guide.12. Start the machine, and turn the wheels full right and full left several times to remove the air from the steering hydraulic system.13. Check the level of oil in the steering system hydraulic tank again.Disassemble Steering Cylinders
Start By:a. remove steering cylinders 1. Put the cylinder into position on tool (A). 2. Install support (3) under the rod, and fasten strap (2) to hold the rod on the support.3. Remove four bolts (1) and washers from the head. Remove the rod and the head from the cylinder. 4. Remove the nut from the rod with tooling (B).5. Remove piston (4) from the rod. 6. Remove wear ring (5) and seal assembly (6) from the piston. Inspect the seals and ring, and make replacements as needed. 7. Install two 7/8" -9 NC bolts through the head and in the cylinder. Move the rod out of head (7).8. Remove head (7) and the bolts from the cylinder. 9. Remove O-ring seal and back-up ring (8) from outside of the head. Inspect the seal and ring, and make replacements as needed. 10. Remove seals (9), (10), and (11) from inside the head. Remove wear ring (12) from the head. Make replacements as needed.Assemble Steering Cylinders
1. Install seal (9) and seal (10) in the head with tool (D). Install seal (10) with the lip toward the inside of the cylinder. Install the seal (11) with tooling (C). The lip of seal (11) must be toward the outside when installed. Install wear ring (12). 2. Install O-ring seal and back-up ring (8) on the outside of the head with the back-up ring toward the outside (bolt flange part of head). Put head (7) into position on the cylinder. Install 7/8"-9 NC bolts to hold the head in place.3. Put clean SAE 10W oil on the seals in the head. Make sure the

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