New Accessory Drives Are Used on Certain 3500 Machine Engines {1207}
- Excavator:
- 5230B (S/N: 4HZ1-UP)
- Transmission:
- TH55 - KRESS (S/N: KCH1-UP)
- Off-Highway Truck/Tractor:
- 776D (S/N: AFS1-UP)
- Track-Type Tractor:
- D11N (S/N: 4HK1-UP; 74Z1-UP)
- Wheel Dozer:
- 854G (S/N: AMP1-UP; A4W1-UP; 1JW1-UP)
- Wheel Loader:
- 992G (S/N: 7HR1-UP; AZX1-UP; ADZ1-UP)
- 777B (S/N: 4YC1-UP)
- 777C (S/N: 4XJ1-UP)
- 777D (S/N: FKR1-UP; 3PR1-UP)
- 784C (S/N: 2PZ1-UP)
- 785 (S/N: 8GB1-UP)
- 785B (S/N: 6HK1-UP)
- 785C (S/N: APX1-UP; 5AZ1-UP)
- 785D (S/N: DMC1-UP; MSY1-UP)
- 789 (S/N: 9ZC1-UP)
- 789B (S/N: 7EK1-UP)
- 789C (S/N: 2BW1-UP)
- 793B (S/N: 1HL1-UP)
- 793C (S/N: CBR1-UP; 4AR1-UP; ATY1-UP; 4GZ1-UP)
- 793D (S/N: FDB1-UP)
- 994 (S/N: 9YF1-UP)
- 994D (S/N: 3TZ1-UP)
- 994F (S/N: 4421-UP)
- 994H (S/N: DWC1-UP)
Description of Change: The new accessory drives have a tighter shaft clearance. This tighter clearance prevents oil leakage.
Adaptable To: The new accessory drive replaces the existing accessory drive. The new accessory drive is adaptable back to first production on the serial numbers listed above.
Install the parts identified in Table 1 and Illustration 1 using any other parts required per application. Refer to Parts Identification for the required parts per application.
Refer to the Disassembly and Assembly manual for the correct procedures.
Show/hide table
Item     | New Part Number     | Description     | Quantity     |
1     | 362-8082     | Accessory Drive Gear     | 1     |
2     | 7N-7539     | Thrust Washer     | 2     |
3     | 364-6393     | Adapter As     | 1     |
4     | 2B-2695     | Bolt     | 4     |
5     | 9M-1974     | Hard Washer     | 4     |
Show/hide table
Illustration 1 | g03747376 |
Accessory drive |
This change is effective on the serial numbers listed in Table 2.
Show/hide table
Effective Serial Numbers     |
S/N:4HZ00237-UP     |
S/N:AFS00101-UP     |
S/N:4YC01867-UP     |
S/N:4XJ01124-UP     |
S/N:3PR01127-UP     |
S/N:FKR02322-UP     |
S/N:2PZ00107-UP     |
S/N:8GB00863-UP     |
S/N:6HK00988-UP     |
S/N:APX02379-UP     |
S/N:5AZ00428-UP     |
S/N:MSY00648-UP     |
S/N:DMC00175-UP     |
S/N:9ZC00678-UP     |
S/N:7EK00689-UP     |
S/N:2BW02129-UP     |
S/N:1HL00525-UP     |
S/N:4AR00425-UP     |
S/N:4GZ00265-UP     |
S/N:ATY01125-UP     |
S/N:CBR00109-UP     |
S/N:FDB01835-UP     |
S/N:1JW00245-UP     |
S/N:A4W00289-UP     |
S/N:AMP00356-UP     |
S/N:7HR00388-UP     |
S/N:ADZ00624-UP     |
S/N:AZX00840-UP     |
S/N:9YF00228-UP     |
S/N:3TZ00337-UP     |
S/N:44200341-UP     |
S/N:DWC00501-UP     |
S/N:4HK00636-UP     |
S/N:74Z01153-UP     |
S/N:KCH22060-UP     |
Caterpillar Information System:
AP1000F Asphalt Paver Machine Systems Slope Lines Group
M318F, M320F and M322F Wheeled Excavators Hydraulic System Main Hydraulic Pump
AP1000F Asphalt Paver Machine Systems Lines (Screed)
AP1055F Asphalt Paver Machine Systems Lines (Auxiliary Pump)
730C and 730C EJECTOR Articulated Trucks Engine - Remove and Install
M318F, M320F and M322F Wheeled Excavators Hydraulic System Electronic Control (Main Pump System)
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Power Train Trunnion Support (Oscillating Axle, Rear) - Remove and Install
797 Off-Highway Truck Hydraulic System Hoist System - Oil Makeup - If Equipped
914G2 and IT14G2 Compact Wheel Loaders Maintenance Interval Schedule
966M and 972M Wheel Loaders Power Train, Steering, Braking, Hydraulic & Machine Systems Differential (Standard)
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Power Train Oscillating Axle (Rear) - Remove and Install
966M and 972M Wheel Loaders Power Train, Steering, Braking, Hydraulic & Machine Systems Front Guard
2864C Site Prep Tractor Product Link
730C and 730C EJECTOR Articulated Trucks Fuel Cooler - Remove and Install
M318F, M320F and M322F Wheeled Excavators Hydraulic System Pump Control (Main Hydraulic)
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Power Train Final Drive, Brake and Wheel - Remove and Install
2864C Site Prep Tractor IQAN Monitoring ; Control System General Information
735, 740 GC, 740 EJECTOR, 745 Articulated Trucks Engine Supplement Catalyst - Remove and Install
Cat® Command for Dozing, Operator Console, Commissioning Guide for D10T, D10T2, and D11T Track-Type Tractors {1408, 7000, 7008, 7605, 7610, 7620} Cat® Command for Dozing, Operator Console, Commissioning Guide for D10T, D10T2, and D11T Track-Type Tractors {1408, 7000, 7008, 7605, 7610, 7620}
2864C Site Prep Tractor Decommissioning and Disposal
415F2 Backhoe Loader Parking Brake - Check/Adjust
Installing the 435-9031 and 435-9237 Reversing Fan Kits {1356} Installing the 435-9031 and 435-9237 Reversing Fan Kits {1356}
966M XE and 972M XE Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Transmission - Transmission Hydraulic Control Clutch Pressure Test
966M XE and 972M XE Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Transmission - Transmission Synchronizer Air Purge Test