MODULE GP-DISPLAY 3917038 - Caterpillar

Sudden movement of the machine or release of air or oil under pressure can cause injury to persons on or near the machine. To prevent possible injury, do the procedure which follows before servicing the air system or brakes.
1. Move the machine to a smooth horizontal location. Move away from working machines and personnel.2. Permit only one operator on the machine. Keep all personnel either away from the machine or in view of the operator.3. Activate the secondary brake and parking brake. Lower the bucket to the ground. Put wood blocks in front of and behind the wheels. Stop the engine.4. Continuously push on the brake pedal until there is no more brake air pressure. When the pressure has been removed from the air circuit, there will be no pressure in the hydraulic circuit.5. Be sure all air pressure is released before any fitting, hose or component is loosened, tightened, removed or adjusted. Before any operational checks are made, open the drain valve to release any water in the air reservoir. Water lowers the capacity in the reservoir and can cause the air compressor to run constantly. Close the drain valve. 6. Open access door (1) behind the cab.7. Remove windshield washer reservoir (2) to gain access to the brake air/hydraulic cylinders.
Typical Example8. Remove the access cover from the left rear side of the machine, directly behind the cab.9. Disconnect hose assembly (3) air/hydraulic cylinder.
Typical Example10. Put identification marks wires (4) for installation purposes. Disconnect wires (4) from the air/hydraulic cylinder. Disconnect the remaining three hose assemblies from the air/hydraulic cylinder.
Typical Example11. Remove nuts (6) and bolts (7), and remove air/hydraulic cylinder (5) from the machine.12. Do Steps 9 through 11 to remove the other air/hydraulic cylinder. The following steps are for the installation of the brake air/hydraulic cylinders.13. Check the condition of all O-ring seals used in the installation of the brake air/hydraulic cylinders. If any seals are worn or damaged, use new parts for replacement.14. Put air/hydraulic cylinder (5) in position in the machine, and install bolts (7) and the nuts (6).15. Connect wires (4) in their original locations on the air/hydraulic cylinder.16. Connect hose assembly (3) to the air/hydraulic cylinder. Connect the remaining three hose assemblies to the air/hydraulic cylinder. Reinstall the access cover on the left side of the machine.17. Do Steps 14 through 16 to install the other air/hydraulic cylinder.18. Reinstall windshield washer reservoir (2).19. Fill the windshield washer reservoir with fluid. See the Operation & Maintenance Manual for the correct filling procedure.20. Remove (bleed) the air from the brake system. See 970F Wheel Loader Air System And Brakes, Systems Operation Testing & Adjusting, Form No. SENR6631.21. Close access door (1) behind the cab.Disassemble Air/Hydraulic Cylinder Group
Start By:a. remove air/hydraulic cylinder group Put an alignment mark on the adapter, tube and air cylinder assembly purposes. 1. Use tool (A) to remove adapter (1) from tube (2).2. Remove tube (2) from air cylinder (3) with tool (A). 3. Remove O-ring seals (4) from the