- Load Haul Dump:
- R2900G (S/N: JLK1-UP)
Introduction
This special instruction relates to certain R2900G Load Haul Dump and covers the procedures listed below.
- Procedure to install a new adapter onto the transmission oil pressure sensor
- Procedure to install a new earth strap onto the transmission
This supplemental product support literature should be used with the appropriate Service Manual and the appropriate Parts Manual that is available for this standard machine.
Read the entire Special Instruction. Understand the information before you perform any procedures. Understand the information before you order any parts.
Safety Section
Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools in order to perform these functions properly.
Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive.
Ensure that all personnel are safe when using a tool, procedure, work method, or operating technique not recommended by Caterpillar. Ensure that the product will not be damaged or the product made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.
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Personal injury or death can result from machine articulation or movement. Machine frames can move and a person can be crushed. Connect the steering frame lock between the front and rear frames before working on the machine. Before operating the machine, place the steering frame lock in the stored position. Failure to place the steering frame lock into the stored position before operating can result in loss of steering. |
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Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin. |
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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 attachments 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. |
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| 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, NENG2500, "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. |
ReferenceDisassembly and Assembly, RENR8558, "R2900G Load Haul Dump Power Train "
ReferenceTroubleshooting Testing and Adjusting, RENR6932, "R2900G Series Load Haul Dump Power Train Electronic Control System"
Parts Required
| Required Parts | ||
|---|---|---|
| Qty | Part Number | Description |
| 1 | 214-7568 | O-Ring Seal |
| 1 | 319-8800 | Adapter |
| 1 | 5N-7902 | Wire As |
Procedure to Install Transmission Oil Pressure Sensor Adapter
Note: Cleanliness is an important factor. Before the removal procedure, clean the exterior of the component thoroughly. Cleaning the exterior will help to prevent dirt from entering the internal mechanism.
- Move the machine to a hard level surface away from operating machines and personnel.
- Engage the parking brake. Place wheel blocks in front of the wheels and behind the wheels.
- Stop the engine.
- Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
- Turn the key start switch and the battery disconnect switch to the OFF position.
- Remove cover (1) and cover (2). Refer to Disassembly and Assembly, RENR8558, "Transmission and Output Transfer Gears - Remove".
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| Illustration 1 | g03396776 |
(1) Cover (2) Cover | |
- Remove and clean 221-3411 Pressure Sensor Gp (3) .
Note: Retain 221-3411 Pressure Sensor Gp (3) and 3J-1907 O-Ring Seal for installation purposes.
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| Illustration 2 | g03396236 |
Typical view of R2900G transmission compartment (3) 221-3411 Pressure Sensor Gp | |
- Install 214-7568 O-Ring Seal (4), 319-8800 Adapter (5), 3J-1907 O-Ring Seal (6) and 221-3411 Pressure Sensor Gp (3). Refer to Illustration 3.
Note: Use 221-3411 Pressure Sensor Gp (3) and 3J-1907 O-Ring Seal (6) retained in Step 7.
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| Illustration 3 | g03399356 |
(3) 221-3411 Pressure Sensor Gp (4) 214-7568 O-Ring Seal (5) 319-8800 Adapter (6) 3J-1907 O-Ring Seal | |
- Check 221-3411 Pressure Sensor Gp (3). Refer to the listed service manuals.
Procedure to Install Transmission Earth Strap
- Remove paint from all contact surfaces between bracket (7), transfer case (8), and clamp (9). Refer to Illustration 4 and Illustration 5.
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| Illustration 4 | g03396760 |
(7) Bracket | |
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| Illustration 5 | g03396763 |
(7) Bracket (8) Transfer case (9) Clamp | |
- Install 5N-7902 Wire As (10) terminal (A) onto earth point (11) .
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| Illustration 6 | g03396745 |
(10) 5N-7902 Wire As (A) Terminal (B) Terminal | |
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| Illustration 7 | g03396761 |
(10) 5N-7902 Wire As (11) Earth point (A) Terminal | |
- Use clamp (9) to secure 7N-7902 Wire As (10) terminal (B) onto bracket (7).
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| Illustration 8 | g03396762 |
(7) Bracket (9) Clamp (10) 5N-7902 Wire As (B) Terminal | |