ROD-PISTON 4757985 - Caterpillar

Start By:a. remove axle (right tractor wheel only)* FLUID SPILLAGE CONTAINMENTCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "Tools and Shop Products Guide, NENG2500", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates. Put the machine on level ground and lower the bowl.
At operating temperature, the hydraulic oil lines are hot and under pressure. Before removing any lines, allow the machine to cool and bleed the pressure from the lines by slowly removing the caps from all of the hydraulic oil tanks. Hot hydraulic oil can cause severe personal injury.
1. Install Tooling (D) under the draft frame, as shown. 2. Put wooden blocks under each side of the cushion hitch so it cannot fall to either side.3. Fasten a lift truck to the front of the tractor to hold the weight of the tractor when the vertical pins are removed from the hitch.
At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause burns. To prevent possible personal injury, release the pressure in the hydraulic system before any hydraulic lines or components are disconnected or removed.
Release the pressure in the hydraulic system as follows:a. Shut off the engine.b. Move the control levers through their full travel strokes. This will relieve any pressure that may be present in the pilot system.c. Slowly loosen the air breather cap on the hydraulic oil tank to release the pressure.d. Tighten the air breather cap on the hydraulic oil tank.e. The pressure in the hydraulic system has now been released. Lines and components can now be removed. Put identification on all of the lines, the hoses, the electrical wires and the tubes for installation purposes. Cap and plug all of the lines, the hoses and the tubes to prevent foreign material from entering the system. Drain all fluids, in the separation of the tractor and the scraper, in a suitable container for storage or disposal. 4. Remove bolts (6), yokes (4) and pins (5). Disconnect rod assemblies (2) from the steering links.5. Disconnect grease lines (3) and hose assembly (1). 6. Disconnect hoses (7) and electrical wiring harness (8) from the bracket. 7. Disconnect electrical wiring connectors (9) at the disconnect on the bracket. Remove electrical wire clips (10), and pull the wiring forward. 8. Disconnect hose assemblies (11), (12) and (13) from the tube and the hose assemblies.9. Install Tooling (B) and caps on the oil lines on the right side of the gooseneck. 10. Do Steps 8 and 9 for hose assemblies (14), (15) and (16) on the left side of the hitch. 11. Remove bolt (17) that holds the rod end of steering cylinder (servo-sender) (18) to the steering links. 12. Remove yokes (19) from the two front