TRAVEL MOTOR (CONT'D) Parts Identification

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1 TRAVEL MOTOR (CONT'D) Parts Identification. Snap Ring. Plug. O-Ring. Cover 5. Bushing 6. Drive Shaft 7. Snap Ring 8. Planetary Carrier 9. Sun Gear 0. Snap Ring. Anti-Rotation Washer. Bearing. Planetary Gear. Thrust Washer 5. Planetary Gear 6. Ring Gear 7. Snap Ring 8. Shims 9. Bearings 0. Spacer. Snap Ring. O-Ring. Seal Ring. Snap Ring 5. Snap Ring 6. Bearing 7. Drive Shaft 8. Hub 9. Seal 0. Alignment Pin. Swash Plate. Rotating Block. Motor Plate. Alignment Pin 5. Bearing 6. O-Ring 7. Alignment Pin 8. Motor Cover 9. Spool 0. Washer. Spring. O-Ring. Plug. Bolt B-7 of /8 Service Manual

Figure 0-70-5 Disassembly IMPORTANT When repairing hydrostatic and hydraulic systems, clean the work area before disassembly and keep all parts clean.

I-00-0888 The following tool will need to be ordered from OTC Tool to reassemble the travel motor: MEL59 for torque ring and seal ring assembly.

2 Figure Disassembly IMPORTANT When repairing hydrostatic and hydraulic systems, clean the work area before disassembly and keep all parts clean. Always use caps and plugs on hoses, tubelines and ports to keep dirt out. Dirt can quickly damage the system. I The following tool will need to be ordered from OTC Tool to reassemble the travel motor: MEL59 for torque ring and seal ring assembly. Figure Remove the internal snap ring from the travel motor case [Figure ]. Figure B-79 B-97 B-70 Remove the drain plugs (Item ) [Figure 0-70-] from the cover. Drain the oil into a container. To remove the cover, install two threaded pins in the drain holes and lift the cover off [Figure ]. Air pressure may also be used to remove the cover. 5 of /8 Service Manual

Figure 0-70-9 Figure 0-70-7 B-7 Screw the adapter in a drain hole

NOTE: Do not use excess pressure or seal damage may result.

Figure 0-70-0 5 B-7 Remove the snap rings (Item ), anti-rotation

thrust washers (Item 5) [Figure 0-70-0] from the planetary

3 Figure Figure B-7 Screw the adapter in a drain hole and apply 8 - psi [Figure ]. NOTE: Do not use excess pressure or seal damage may result. Figure B-7 Remove the planetary carrier [Figure ]. Figure B-7 Remove the snap rings (Item ), anti-rotation washers (Item ), gears (Item ), bearings (Item ) and the bottom thrust washers (Item 5) [Figure ] from the planetary carrier assembly. B-77A Remove the O-ring (Item ) [Figure ] from the cover. 6 of /8 Service Manual

Figure 0-70- Figure 0-70- B-76 Remove the drive shaft (Item ) [Figure 0-70-] from the carrier.

Figure 0-70- B-77 B-75 Remove the sun gear (Item ) from the planetary carrier, by removing the snap ring

Remove the external snap ring (Item ) and the shim(s) (Item ) [Figure 0-70-].

4 Figure Figure B-76 Remove the drive shaft (Item ) [Figure 0-70-] from the carrier. Figure B-7 Remove the snap rings (Item ) and the gears/bearings (Item ) [Figure 0-70-]. Figure B-77 B-75 Remove the sun gear (Item ) from the planetary carrier, by removing the snap ring (Item ) and pushing the sun gear (Item ) [Figure 0-70-] out of the carrier. Remove the external snap ring (Item ) and the shim(s) (Item ) [Figure 0-70-]. Before the ring gear can be pulled from the hub, a plate must be placed on the three pins of the planetary carrier. The plate will provide support for the three jaw puller. 7 of /8 Service Manual

Figure 0-70-7 Figure 0-70-5 0.50 in. (6,5 mm) 5.500 in. (0 mm) B-79 Obtain the plate [Figure 0-70-5] locally.

NOTE: Do not damage the top surface of the bearing as it is lapped (polished) to mate with the front seal ring. Figure 0-70-8 Thickness 0.50 in. (6.

5 Figure Figure in. (6,5 mm) in. (0 mm) B-79 Obtain the plate [Figure ] locally. The dimensions of the plate are as follows: Diameter in. (0 mm) B-75 Remove the ball bearing from the ring gear as shown [Figure ]. NOTE: Do not damage the top surface of the bearing as it is lapped (polished) to mate with the front seal ring. Figure Thickness 0.50 in. (6.5 mm) Figure B-70 B-78 Remove the O-ring (Item ) [Figure ] from the ring gear. Using a three jaw puller, separate the hub and the ring gear assembly [Figure ]. 8 of /8 Service Manual

Figure 0-70- Figure 0-70-9 B-89 B-7 Remove the front seal ring from the motor

Remove the internal snap ring (Item ) and spacer (Item ) [Figure 0-70-9].

6 Figure Figure B-89 B-7 Remove the front seal ring from the motor hub [Figure 0-70-]. Remove the internal snap ring (Item ) and spacer (Item ) [Figure ]. Figure Figure B-7 B-7 Remove the second bearing from the ring gear [Figure ]. Remove the plugs (Item ), O-rings (Item ), springs (Item ), and washers (Item ) [Figure 0-70-] from both ends of the spool. Remove the spool (Item 5) [Figure 0-70-]. 9 of /8 Service Manual

Figure 0-70-5 Figure 0-70- B-75 B-9 To disassemble the spool, insert a hardened pin through the hole in the spool and use a vise with protective jaws to hold the spool [Figure 0-70-].

7 Figure Figure B-75 B-9 To disassemble the spool, insert a hardened pin through the hole in the spool and use a vise with protective jaws to hold the spool [Figure 0-70-]. NOTE: Do not use any type of tool to grip the spool or damage to the spool will result. Remove the bolts and motor cover [Figure ]. Figure Remove the end plug from both ends of the spool [Figure 0-70-]. Figure B-677 Remove the valve plate (Item ) and dowel pin (Item ) [Figure ] B-9 Remove the spring (Item ), poppet (Item ), and check ball (Item ) [Figure 0-70-] from both ends of the spool. 0 of /8 Service Manual

a. remove counterbalance valves, travel motors and travel drives

* For further information, contact Caterpillar Service Technology Group. Start By: a. remove counterbalance valves, travel motors and travel drives 1. Remove the counterbalance valve. See, "Disassemble