- Off-Highway Truck/Tractor
- 772G (S/N: TWB1-249; LTS1-443; KEX1-257; LTX1-210)
Description Of Change: Power train oil lines have been improved for longer life and durability.
Adaptable To: The following changes are adaptable to 386-9541 Power Train Oil Lines Gp within the listed serial numbers, and are effective with all products after the listed serial numbers.
Safety
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Hot hydraulic oil under high pressure can remain in the components of the hydraulic system or the power train system after the engine has been stopped. The uncontrolled release of the hydraulic oil can cause sudden machine movement and can also result in the following conditions:
If hydraulic oil penetrates body tissue, the injury must be treated immediately by a doctor who is familiar with this type of injury. Use a board or a piece of cardboard to check for a hydraulic oil leak. Make sure that all of the attachments have been lowered to the ground and that all trapped pressure has been released from the hydraulic system and the power train system. Also, make sure that the hydraulic oil is cool before the removal of any components or lines. Remove the hydraulic oil filler cap only when the engine is stopped and the filler cap is cool enough to touch with your bare hand. |
| NOTICE |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
Required Parts
| Part List | |||
|---|---|---|---|
| Item | Qty | Part Number | Part Name |
| 1 | 1 | Tube As | |
| 2 | 1 | O-Ring Seal | |
| 3 | 2 | Bolt | |
| 4 | 2 | Bolt | |
| 5 | 4 | Hard Washer | |
| 6 | 2 | Clip | |
| 7 | 2 | Clip | |
| 8 | 1 | Plate | |
| 9 | 1 | Grommet | |
| 10 | 2 | Bolt | |
| 11 | 4 | Washer | |
| 12 | 2 | Nut | |
| 13 | 1 | Hose As | |
| 14 | 2 | O-Ring Seal | |
| 15 | 1 | Clip | |
| 16 | 1 | Clip | |
| 17 | 1 | Grommet | |
| 18 | 1 | Grommet | |
Machine Preparation
- Move the machine to a smooth horizontal location. Move away from any machines that are working and any personnel.
- Move the transmission control to the P position.
- Stop the engine.
- Place blocks in front of the wheels and behind the wheels.
- Drain transmission oil. Refer to OMM, SEBU8718, "Torque Converter and Transmission Oil - Change" or OMM, SEBU8491, "Torque Converter and Transmission Oil - Change". Depending on which machine is being serviced.
Removal Procedure
- Remove tube assembly (A) from the left side of transmission. Discard tube assembly (A), clip (B), and hardware (C).
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Illustration 2 g06146368 View of the left-hand side of the transmission - Remove and discard hose assembly (D) and hardware (F) connecting hose assembly (D) to the steering cylinder hose. Remove and retain hardware (E) for reuse.
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| Illustration 1 | g06146282 |
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View of the left-hand side of the transmission | |
Installation Procedure
- Install tube assembly (1) to side of transmission with seal (2), two bolts (3) two bolts (4) and four washers (5).
- Secure tube assembly (1) to bracket on side of transmission with clip (6), clip (7), plate (8), grommet (9), bolt (10), two washers (11), and nut (12).
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Illustration 4 g06363195 (C) Oil cooler
(E) Retained hardware
(1)476-6562 Tube As
(13)491-0882 Hose As
(14)234-3544 O-Ring Seal - Install hose assembly (13) to tube assembly (1) on the transmission and the tube on oil cooler (C) with two seals (14). Use hardware (E) retained in Step of the removal procedure to install hose assembly (13).
- Secure hose assembly (13) to the former clipping locations with saved hardware that was retained in Step 2 of the removal procedure .
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Illustration 5 g06363198 View A-A
(6)5P-7468 Clip
(7)5P-7469 Clip
(10)8T-4196 Bolt
(11)7X-7729 Washer
(12)344-5675 Nut
(13)491-0882 Hose As
(15)5P-7470 Clip
(16)5P-7471 Clip
(17)5P-7703 Grommet
(18)6V-0545 Grommet - Secure hose assembly (13) to steering cylinder hose above the left side steering cylinder using the hardware shown in Illustration 5.
Note: This step can be completed without changing the hose and tube to prevent chaffing between the two hoses.
- Refill machine with transmission oil. Refer to OMM, SEBU8718, "Torque Converter and Transmission Oil - Change" or OMM, SEBU8491, "Torque Converter and Transmission Oil - Change". Depending on which machine is being serviced.
- Return machine to service.
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| Illustration 3 | g06363192 |
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(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) | |
