LINES GP-FRONT 2551759 - Caterpillar

start by: a) remove drive chains1. Release the air pressure in the air tank by loosening the bleed valves.
Do not disconnect the air line to the brake and wheel spindle housing until the air pressure is zero.
2. Remove two nuts (2), the washers and guard (1) from the housing.3. Disconnect the air line from the housing and the block on the tandem housing. Remove the air line. 4. Fasten a hoist and tooling (A) to the plate on the brake and wheel spindle housing and to the stud on the wheel spindle.5. Remove nuts (3) and the washers that hold the brake and wheel spindle housing to the tandem housing. Remove brake and wheel spindle housing (4). Weight is 350 lb. (159 kg).Install Brake And Wheel Spindle Housings
1. Fasten a hoist and tooling (A) to the brake and wheel spindle housing. Put brake and wheel spindle housing (1) in position on the studs in tandem housing (2).2. Install the nuts (3) and the washers that hold the brake and wheel spindle housing to the tandem housing.3. Remove the hoist and tooling (A). Install the air line on the brake and wheel spindle housing and the block on the tandem housing. Install the guard on the housing. Install the two nuts and the washers that hold it.end by: a) install drive chainsDisassemble Brake And Wheel Spindle Housings
start by: a) remove brake and wheel spindle housings 1. Remove wire (3) from the bolts. Remove bolts (1). Remove retainer (2) and the shims that are under the retainer.2. Remove sprocket (4). Weight is 36 lb. (16 kg). 3. Remove bearing cone (5) from the spindle and cover (6). Remove O-ring seal (7) from cover (6). 4. Remove the bolts and plate (8) that hold cover (6) to the housing. Install two 5/8"-11 NC forged eyebolts in the cover. Fasten a hoist to the eyebolts and remove the cover. Weight is 50 lb. (23 kg). Remove bearing cup (10) from the cover.5. Remove O-ring seal (9) from the cover. 6. Remove hub (11) from the wheel spindle.7. Remove ten discs (12) and nine disc assemblies from the housing. 8. Put springs (15) in compression with tool (A).9. Remove rings (14) from the studs with pliers.10. Remove tool (A). Remove washers (13) and springs (15) from the studs. 11. Install two 5/8"-11 NC forged eyebolts (16) in housing (17). Fasten a hoist to the eyebolts.12. Remove housing (17) from the wheel spindle. Weight is 100 lb. (45 kg).13. Remove Duo-Cone seals (18) from the wheel spindle and the housing. 14. Install tooling (B) and blocks on the housing as shown.15. Remove piston (19) with tooling (B).16. Remove the O-ring seals from the piston. Remove the bearing cup from the housing. 17. Remove bearing cone (21) from wheel spindle (20) with tooling (C).18. Do Steps 1 through 17 for the other brake and wheel spindle housings. Assemble Brake And Wheel Spindle Housings
1. Lower the temperature of bearing cup (1) and install it in housing