ARM GP-MATERIAL HANDLING 2299714 - Caterpillar

1. Make sure that all hydraulically operated lifting components are lowered.2. Drain the oil from the hydraulic tank.3. Remove bolts (1) that hold cover (2) and then remove cover (2). 4. Remove bolts (3) that hold panel (4) and then remove panel (4).5. Slide rubber boots (5) onto levers (6) and (7). 6. Remove two bolts (10) that hold lever (6). Remove two bolts (11) that hold lever (7).7. Remove armrest (8) and remove the remaining bolts holding cover (9). Remove cover (9). 8. Disconnect two wire connectors (12) and (13). 9. Remove bracket (15) that holds the brake fluid reservoir. Lay the reservoir on the floor of the machine.10. Disconnect control linkages (16), (17) and (18). Disconnect six hydraulic lines (19).11. Remove three bolts (20) that hold the control valve in position.12. Remove the control valve. The following steps are for the installation of the hydraulic control valve. 13. Put the control valve in position with the three bolts (20) that hold it.14. Connect six hydraulic lines (19) and connect control linkages (16), (17) and (18).15. Put the brake reservoir in position with the bracket (15) that hold it. 16. Connect two wire connectors (12) and (13). 17. Put cover (9) in position with the bolts that hold it. Install armrest (8).18. Install lever (7) with two bolts (11). Install lever (6) with two bolts (10). 19. Slide rubber boots (5) onto levers (6) and (7).20. Install panel (4) with bolts (3). 21. Install cover (2) with bolts (1).22. Fill the hydraulic tank with oil to the correct level. See the Maintenance Manual.End By:a. install floor plates (not necessary on machines with cabs)b. install seatDisassemble & Assemble Hydraulic Control Valve
Start By:a. remove hydraulic control valve 1. Remove three nuts (1) and manifold (2).2. Remove bucket positioner bank (3). 3. Remove O-ring seal (4) and spring (5) and poppet from the bucket positioner bank.4. Remove two screws (6) and valve seal plate (7).5. Remove two screws (8) and cap (9). 6. Remove bolt (10), retainer (11), spring (12) and valve seal plate (13) from the spool. 7. Remove teflon seal (14) and O-ring seal (15) from both ends of spool (16). 8. Remove bucket tilt valve bank (17).9. Remove O-ring seal (18) and spring (19) and poppet from valve bank (17).10. Remove two screws (20) and valve seat plate (21).11. Remove two Allen bolts (22) and solenoid (23). 12. Remove spool (27). Remove teflon seal (25) and O-ring seal (26) from both ends of spool (27). Remove valve seal plate (24). 13. Remove bolt (28), retainer (29) spring (30) and retainer (31) from the end of bucket tilt spool (27). 14. Remove bucket tilt valve bank (32). Remove O-ring seal (33) and spring (34) and poppet.15. Remove two screws (35) and valve seal plate (36).16. Remove two Allen bolts (37) and remove solenoid (38).
Spring pressure is present when bolt (39) is removed.
17. Remove bolt (39) and spacer (40).
Spring pressure is present when bolt (41) is removed.
18. Remove bolt