- Load Haul Dump (LHD):
- R2900 (S/N: BAR; 5TW)
Reference: Systems Operation, Testing and Adjusting, RENR4580 (9EL3676), "R2900 L.H.D. Hydraulic System", "Release of Pressure in the Hydraulic System"
Description of Change: A hydraulic oil cooler with increased capacity for cooling the hydraulic oil is available.
Adaptable To: The 9EP9386 Oil Cooler is adaptable to S/N:R2900-101 to 170
and R2900 (S/N: 5TW1-UP) by using the following procedure.
| Service Parts that are Needed to Install an Increased Capacity Hydraulic Oil Cooler | |||
| Item | Qty | Part Number | Description |
| 14 | 3 | 7M-8485 | O-Ring Seal |
| 23 | 1 | 9S-4181 | Straight Thread Plug |
| 24 | 1 | 9EP9386 | Oil Cooler |
| 25 | 1 | 8K-6898 | Fitting As |
| 26 | 1 | 9EP9389 | Hinge |
| 27 | 1 | 0DE5263 | Hose Assembly |
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
 |
| NOTICE |
|---|
Care 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 Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates. |
Procedure
- Release the pressure in the hydraulic system. Refer to Systems Operation, Testing and Adjusting, RENR4580 (9EL3676), "R2900 L.H.D. Hydraulic System", "Release of Pressure in the Hydraulic System".
- Disconnect hose assembly (11) from elbow (10) .
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| Illustration 1 | g00785248 |
(1) 9EL3903 Oil Cooler (2) Radiator (3) 5P-7468 Clip (4) 5P-7469 Clip (5) 5P-8444 Grommet (6) 5P-1075 Hard Washer (7) 9B-7237 Bolt (8) 9EL4384 Hinge (9) 1DE2136 Elbow (10) 1DE2136 Elbow (11) 0DE4295 Hose Assembly (12) 0DE3328 Hose Assembly (13) 0DE3329 Hose Assembly (14) 7M-8485 O-Ring Seal (15) 1DE1817 Adapter (16) 5S-7379 Bolt (17) 9DE7344 Pin (18) 9EL4381 Hinge (19) 7H-2614 Pin (20) 3B-4615 Cotter Pin (21) 9H-1020 Taperlock Stud (22) 3S-2713 Full Nut | |
- Remove elbow (10) from hose assembly (12) .
- Disconnect hose assembly (13) from oil cooler (1) .
- Remove hose assembly (12). Discard hose assembly (12) .
- Remove the following items from hose assembly (11) : bolts (7), hard washers (6), grommets (5), clips (4) and clips (3) .
- Remove hose assembly (11). Discard hose assembly (11) .
- Remove the following items: bolt (16), washer (6) and pin (17). Refer to Detail A in Illustration 1.
- Remove cotter pins (20) from pins (19). Remove pins (19). Refer to Detail B in Illustration 1.
- Remove oil cooler (1) from the machine.
- Remove hinge (8) from radiator (2). Discard hinge (8) .
- Remove hard nuts (22) and hard washers (6). Remove four 9EL4381 Hinges (18) from oil cooler (1) .
- Remove eight 9H-1020 Taperlock Studs from oil cooler (1) .
- Remove elbow (9) and adapter (15) from oil cooler (1) .
- Install 7M-8485 O-Ring Seal (14) to 9S-4181 Straight Thread Plug (23). Install 9S-4181 Straight Thread Plug (23) to 9EP9386 Oil Cooler (24) .
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| Illustration 2 | g00785250 |
(2) Radiator (3) 5P-7468 Clip (4) 5P-7469 Clip (5) 5P-8444 Grommet (6) 5P-1075 Hard Washer (7) 9B-7237 Bolt (9) 1DE2136 Elbow (10) 1DE2136 Elbow (13) 0DE3329 Hose Assembly (14) 7M-8485 O-Ring Seal (15) 1DE1817 Adapter (16) 5S-7379 Bolt (17) 9DE7344 Pin (18) 9EL4381 Hinge (19) 7H-2614 Pin (20) 3B-4615 Cotter Pin (21) 9H-1020 Taperlock Stud (22) 3S-2713 Full Nut (23) 9S-4181 Straight Thread Plug (24) 9EP9386 Oil Cooler (25) 8K-6898 Fitting As (26) 9EP9389 Hinge (27) 0DE5263 Hose Assembly | |
- Install 7M-8485 O-Ring Seal (14) to 8K-6898 Fitting As (25). Install 8K-6898 Fitting As (25) to 9EP9386 Oil Cooler (24) .
- Install 1DE2136 Elbow (10), that was removed in Step 3, to 8K-6898 Fitting As (25) .
- Install 1DE1817 Adapter (15) and 1DE2136 Elbow (9), that was removed in Step 14, to 9EP9386 Oil Cooler (24) .
- Install eight 9H-1020 Taperlock Studs (21), that were removed in Step 13, to 9EP9386 Oil Cooler (24) .
- Install four 9EL4381 Hinges (18), that were removed in Step 12, to 9EP9386 Oil Cooler (24) .
- Install 9EP9389 Hinge (26) to radiator (2) .
- Align 9EP9386 Oil Cooler (24) in position with the hinges.
- Install pins (19). Install cotter pins (20) to pins (19). Install pins (17). Refer to Detail A and Detail B in Illustration 2.
- Connect 0DE3329 Hose Assembly (13) to the oil cooler.
- Connect 0DE5263 Hose Assembly (27) to the oil cooler.
- Install the following items that were removed in Step 6: grommet (5), clip (4), clip (3), bolt (7) and hard washer (6) .