- Load Haul Dump:
- R1700G (S/N: SBR1-1056; 8XZ1-UP)
Introduction
This special instruction covers the procedure to rework the final drive on certain R1700G Load Haul Dump machines. 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, KENR6257, "R1700G Load Haul Dump Power Train".
ReferenceDisassembly and Assembly, RENR4661, "R1700G Load Haul Dump Power Train".
Parts Required
| Required Parts | ||
|---|---|---|
| Qty | Part Number | Description |
| 3 | 208-7619 | Planetary Gear |
| 6 | 4D-3151 | Roller Bearing As |
| 6 | 203-5527 | Thrust Washer |
| 3 | 369-7660 | Shaft |
| 3 | 180-0015 | Spacer |
| 6 | 203-5528 | Thrust Washer |
| 3 | 6T-5545 | Dowel |
Procedure
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 final drive planetary carrier (1). Refer to Disassembly and Assembly, "Final Drive and Brake - Remove".
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| Illustration 1 | g03465916 |
View of final drive and wheel group (1) Final drive planetary carrier | |
- For each planetary gear in the final drive planetary carrier (1), remove and discard bushing (2), planetary gear (3), planetary shaft (4) and two thrust washers (5). Refer to Disassembly and Assembly, "Final Drive Planetary Carrier - Disassemble".
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| Illustration 2 | g03465917 |
(1) Final drive planetary carrier (2) Bushing (3) Planetary gear (4) Planetary shaft (5) Thrust washer | |
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| Illustration 3 | g03465918 |
(2) Bushing (3) Planetary gear (4) Planetary shaft (5) Thrust washer | |
- Prior to assembly inspect the bore of each 208-7619 Planetary Gear (6). The bore should be smooth and free from grinding marks. Refer to Illustration 4.
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| Illustration 4 | g03419043 |
(6) 208-7619 Planetary Gear | |
- Install 6T-5545 Dowel (12) to 369-7660 Shaft (11). Refer to Illustration 5.
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| Illustration 5 | g03419042 |
(6) 208-7619 Planetary Gear (7) 203-5528 Thrust Washer (8) 203-5527 Thrust Washer (9) 4D-3151 Roller Bearing As (10) 180-0015 Spacer (11) 369-7660 Shaft (12) 6T-5545 Dowel | |
Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.
- Install two 4D-3151 Roller Bearing As (9) and 180-0015 Spacer (10) to 208-7619 Planetary Gear (6). Refer to Illustration 5 and Illustration 6.
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| Illustration 6 | g03446876 |
(6) 208-7619 Planetary Gear (7) 203-5528 Thrust Washer (8) 203-5527 Thrust Washer (9) 4D-3151 Roller Bearing As (10) 180-0015 Spacer (11) 369-7660 Shaft (13) 129-3046 Planetary Carrier | |
Note: Lubricate each 4D-3151 Roller Bearing As (9) with the lubricant that is being sealed.
- Install two 203-5528 Thrust Washers (7), two 203-5527 Thrust Washers (8) and 208-7619 Planetary Gear (6) to 129-3046 Planetary Carrier (13) .
Note: Ensure 203-5528 Thrust Washer (7) is installed between 203-5527 Thrust Washer (8) and 129-3046 Planetary Carrier (13) .
Note: Lubricate the contact surfaces of 203-5528 Thrust Washer (7) and 203-5527 Thrust Washer (8) with the lubricant that is being sealed.
- Install 369-7660 Shaft (11) to the final drive planetary carrier. Align 6T-5545 Dowel (12) with the slot in the final drive planetary carrier. Refer to Illustration 7.
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| Illustration 7 | g03419045 |
(11) 369-7660 Shaft (12) 6T-5545 Dowel | |
- Repeat Step 8 through Step 12 for the remaining two planetary gears.
- Install the final drive planetary carrier (1). Refer to Disassembly and Assembly, "Final Drive, Brake, and Wheel - Install".