Proper Gear Installation Improves Service Life {5058}
- Integrated Toolcarrier:
- IT14G (PIN: 1WN1-UP; 8ZM1-UP)
- Wheel Loader:
- 914G (PIN: 7ZM1-UP; 9WM1-UP)
Note: Insert this article in Service Manual Module, SENR6768, "914G Power Train Disassembly and Assembly", "Piston Motor (Hydrostatic)-Assemble".
When you replace the drive gear on a hystat motor, the drive gear can be incorrectly installed. An incorrectly installed gear will have a reduced service life due to a reduced contact area between the meshing gears.
When you install the hystat motor, check that the gear is installed on the motor with the long nose of the gear on the side away from the motor. See illustration1.
Show/hide table
Affected Parts     | |||
Machine     | Mounting Group     | Hystat Motor     | Gear     |
Model     | Part Number     | Part Number     | Part Number     |
914G     | 111-4668     | 134-7307     | 110-3013     |
914G     | 111-4670     | 111-0364     | 110-3013     |
914G     | 111-4672     | 117-2912     | 110-3011     |
IT14G     | 111-4669     | 134-7307     | 110-3012     |
IT14G     | 111-4671     | 111-0364     | 110-3012     |
IT14G     | 111-4673     | 111-0365     | 110-3010     |
Show/hide table
Illustration 1 | g00720304 |
(1) Hystat Motor (2) Gear (A) Longer Nose |
Note: Position the longer nose (A) of the gear on the side away from the motor.
Caterpillar Information System:
3054B Engine for Caterpillar Built Machines Fuel System Pressure - Test
2000/08/21 Correction to Testing and Adjusting , "Gear Pump (Hoist) - Test and Adjust and Relief Valve (Hoist Raise) - Test and Adjust" {5073, 5073, 5083, 5083, 5136, 5136}
3408E and 3412E Engines for Caterpillar Built Machines Vibration Damper and Pulley - Remove and Install
2000/08/21 Correction to Disassembly and Assembly , "Differential and Bevel Gear - Assemble" {3256, 3258}
938G Wheel Loader and IT38G Integrated Toolcarrier Hydraulic System Check Valve (Pilot)
416D, 420D, 424D, 428D, 430D, 432D and 442D Backhoe Loaders Extendable Stick Pads - Inspect/Replace - If Equipped
PF-300B and PS-300B Pneumatic Compactors Propel System General Information
416C, 426C, 428C, 436C and 438C Backhoe Loaders Parking
3176C and 3196 Engines For Caterpillar Built Machines Water Pump - Assemble
3408E and 3412E Engines for Caterpillar Built Machines Unit Injector Hydraulic Pump Drive - Install
420D and 430D Backhoe Loaders Engine Oil and Filter - Change
420D and 430D Backhoe Loaders Engine Oil Level - Check
938G Wheel Loader and IT38G Integrated Toolcarrier Machine Systems Quick Coupler - Install
CP-563D, CS-563D, CS-573D and CS-583D Vibratory Compactors Propel System Wheel and Tire
CP-563D, CS-563D, CS-573D and CS-583D Vibratory Compactors Propel System Pressure Control Valve - Shift Valve
424D, 428D and 438D Backhoe Loaders Final Drive Oil (Front) - Change
CP-563D, CS-563D, CS-573D and CS-583D Vibratory Compactors Propel System Drum Drive
424D, 428D and 438D Backhoe Loaders Final Drive Oil Level (Front) - Check
420D and 430D Backhoe Loaders Fuel System Water Separator - Drain
424D, 428D and 438D Backhoe Loaders Fuses - Replace
420D and 430D Backhoe Loaders Hydraulic System Oil Filter - Replace
TH103 Telehandler Compensating Cylinder Bearing - Lubricate
TH103 Telehandler Cooling System Coolant Level - Check
TH103 Telehandler Engine Air Filter Primary Element - Clean/Replace