Correction to Testing And Adjusting , "Transmission Testing and Location of The Pressure Taps" {3030, 3073}
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2003/04/14
[SEPD0679]
2003/04/14
A New Valve, New Software, and a New Selector Switch for the Lockup Clutch is Used {3139, 7332, 7620}
2003/04/14
Special Instruction, REHS1640, "Additional Documentation for the Payload Control System" Is Available {0374, 7494}
POWER TRAIN
CONTROL GP-TRANSMISSION HYD
2003/04/14
Correction to Testing And Adjusting , "Transmission Testing and Location of The Pressure Taps" {3030, 3073}
- Wheel Loader:
- 966F (S/N: 4YG1-UP; 3XJ1-UP)
- 966F Series II (S/N: 9YJ1-UP; 1SL1-UP; 8BG1-UP)
A portion of the existing information is incorrect. Replace the chart for the transmission pressures with the following information.
Show/hide table
TRANSMISSION PRESSURE CHARTS     | ||||
Pressure     | Pressure Tap     | Governor Control Lever At     | ||
Low Idle | High Idle     | Adjustment     | ||
Oil Pump     | A     | 2140 kPa (310 psi)     |
2685 ± 115 kPa (390 ± 17 psi)     |
None     |
Speed Clutch (P1) (Initial Pressure)     | E     | 531 ± 34 kPa (77 ± 5 psi) with the direction selection in NEUTRAL, the speed selector in FIRST. Load Piston plug (G) is removed.     |
    | Add or remove the amount of spacers (23). See the SPACER CHART.     |
Speed Clutch (P1)     | E     | Must be 2068 kPa (300 psi) minimum, with the selector lever in any FORWARD speed. Load piston plug (G) is installed.     |
2550 ± 70 kPa (370 ± 10 psi) with the selector lever in any FORWARD speed. Load piston plug (G) is installed.     |
None     |
Direction Clutch (P2)     | F     | 379 ± 55 kPa (55 ± 8 psi) less than the speed clutch pressure at tap (E). Load piston plug (G) is installed.     |
379 ± 55 kPa (55 ± 8 psi) less than the speed clutch pressure at tap (E). Load piston plug (G) is installed.     |
None     |
Transmission Lubrication Oil     | C     | 7 kPa (1 psi) minimum     |
331 ± 41 kPa (48 ± 6 psi)     |
None     |
Information System:
2003/03/24
New Flash Software Allows Calibrations of the Power Train to be Performed by Using the Caterpillar Electronic Technician {0783, 0785, 7620}
980G Series II Wheel Loader Electrohydraulic System
Hydraulic Fan Speed - Test and Adjust
C7 Engines for Caterpillar Built Machines
Camshaft Gear - Remove and Install
611 and 615C Series II Wheel Tractor-Scrapers Steering System
Steering System Troubleshooting
611 and 615C Series II Wheel Tractor-Scrapers Steering System
Piston Pump (Secondary Steering)
611 and 615C Series II Wheel Tractor-Scrapers Steering System
General Information
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems
Pilot Operated Hydraulic Control - Assemble
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems
Pilot Operated Hydraulic Control - Disassemble
651E and 657E Wheel Tractor-Scrapers Hydraulic System
Relief Valve (Push-Pull) - Test and Adjust
C7 Engines for Caterpillar Built Machines
Piston Cooling Jets - Remove and Install
C11 and C13 Engines for Caterpillar Built Machines
Variable Valve Actuators - Inspect/Adjust
C7 Engines for Caterpillar Built Machines
Rocker Shaft - Disassemble
2003/04/21
Correction to Testing and Adjusting , "Pressure Tap Locations" {3030}
C7 Engines for Caterpillar Built Machines
Unit Injector - Remove
C7 Engines for Caterpillar Built Machines
Unit Injector - Install
C15 Petroleum Generator Set Engines
Gear Group (Front)
D6N Track-Type Tractor Power Train
Equalizer Bar - Install
D6N Track-Type Tractor Power Train
Equalizer Bar - Remove
D6N Track-Type Tractor Power Train
Front Track Roller Frame - Remove
D6N Track-Type Tractor Power Train
Front Track Roller Frame - Install
D6N Track-Type Tractor Power Train
Pivot Bar-Remove and Install
D6N Track-Type Tractor Power Train
Track Adjuster - Remove and Install
D6N Track-Type Tractor Power Train
Track Roller Frame - Remove
D6N Track-Type Tractor Power Train
Track Roller Frame - Install