New Rod Seals for the Quarry Truck and Construction Truck Hoist Cylinders {5102}
- Off-Highway Truck:
- 770 (S/N: BZZ1-UP)
- Quarry Truck:
- 775F (S/N: DLS1-UP)
- 772 (S/N: RLB1-UP)
- 773F (S/N: EED1-UP)
- 777F (S/N: JRP1-UP)
Description of Change: New rod seals are available for the hoist cylinders. The new rod seal has a U-cup seal that replaces the former rectangular cross section seal and the former backup ring. The seals will only address leaks that are caused by former seal design.
Adaptable To: The change is effective with 770 BZZ00393-UP, 772RLB00482-UP, 773F EED[00863-UP, 775F DLS00822-UP and 777F JRP01538-UP. Refer to Table 1 and Table 2 in order to view the new parts and the former parts that are affected.
Show/hide table
| The Ring Seals that are listed below are found in the 770,772, 773F, and 775F trucks. | |||
| New Part | Description | Former Part | Description |
| 326-0765 | U-Cup Seal | 8J-9449 | Ring Seal |
| 326-0765 | U-Cup Seal | 289-2944 | Backup Ring |
| 326-0766 | U-Cup Seal | 8J-9933 | Ring Seal |
| 326-0766 | U-Cup Seal | 289-2942 | Backup Ring |
Show/hide table
| The Ring Seals that are listed below are found in the 777F truck. | |||
| New Part | Description | Former Part | Description |
| 326-0769 | U-Cup Seal | 8J-9449 | Ring Seal |
| 326-0769 | U-Cup Seal | 289-2944 | Backup Ring |
| 326-0768 | U-Cup Seal | 8J-9933 | Ring Seal |
| 326-0768 | U-Cup Seal | 289-2942 | Backup Ring |
Caterpillar Information System:
966H and 972H Wheel Loaders Restricted Visibility
966H and 972H Wheel Loaders Camera
IT38H Integrated Toolcarrier and 938H Wheel Loader Camera - Rear View Camera (If Equipped)
785D OEM Off-Highway Truck Power Train Drive Shaft (Main) - Remove and Install
2008/12/22 A New Valve Assembly Updates the Flow Control and Relief Valves {5117, 5137}
2008/10/27 New High Temperature Seals are Used for the Hydraulic System {1374, 5057}
2008/11/03 New Software For The Power Train ECM Is Now Used {7610, 7620}
422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Machine Systems Bucket - Remove and Install
785D OEM Off-Highway Truck Power Train Oil Filter and Base (Torque Converter) - Assemble
785D OEM Off-Highway Truck Power Train Oil Filter and Base (Torque Converter) - Disassemble
Repair Procedure For Cracks or Pin Holes in the Hydraulic Oil Tank on Certain Excavators{5056} Repair Procedure For Cracks or Pin Holes in the Hydraulic Oil Tank on Certain Excavators{5056}
795F AC and 795F AC XQ Off-Highway Truck Machine Systems Lubrication Pump (Automatic) - Install
587R Pipelayer Hydraulic System Quick-Drop Valve
2008/08/25 An Improved Flip-Over Stabilizer Pad Is Available {7222}
430E Backhoe Loader Bank Valve - Remove and Install
422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Hydraulic and Steering System Hydraulic Tank and Mounting
MINEGEM Machine Control ; Guidance Products Machine Isolating for Maintenance - R1300G LJB
C13, C15, and C18 Tier 4 Final Engines Cylinder Head Valves
416E, 420E and 430E Backhoe Loaders Hydraulic and Steering System Piston Pump (Work Tool and Steering)
IT38H Integrated Toolcarrier and 938H Wheel Loader Mirror - If Equipped
795F AC and 795F AC XQ Off-Highway Truck Machine Systems Metering Pump (HMU) - Remove and Install
422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Machine Systems Lift Arms - Remove
422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Machine Systems Lift Arms - Install
2008/09/15 An Improved Track Shoe Is Being Installed {4172}