120H Motor Grader CAF00001-UP (MACHINE) POWERED BY 3126B Engine(SEBP3...
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Producto: MOTOR GRADER
Modelo: 120H MOTOR GRADER CAF00453
Configuración: 120H Motor Grader CAF00001-UP (MACHINE) POWERED BY 3126B Engine
Pruebas y Ajustes
120H, 12H, 135H, 140H, 143H, 160H and 163H Motor Graders
Número de medio -RENR4104-12 Fecha de publicación -01/10/2014 Fecha de actualización -23/10/2014
i03530120
Clutch Control - Test
SMCS - 3162-081; 3191-081
When testing and adjusting the transmission and power train, move the
machine to an area clear of obstructions, with safe exhaust ventilation
for the exhausts. Sudden movement of the machine or release of oil
under pressure can cause injury to persons on or near the machine. To
prevent possible injury, do the procedure that follows before testing and
adjusting the transmission and power train.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the machine. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Dispose of all fluids according to local regulations and mandates.
Before you begin the test, refer to Systems Operation, Testing and Adjusting, "Machine Preparation
for Troubleshooting".
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Table 1
Required Tools
Part Number Description Quantity
1U-5482 Pressure Adapter Group 1
8T-0856 Pressure Gauge (0 to 6,000 kPa (0 to 870 psi)) 1
1. Operate the machine until the transmission oil is at operating temperature of 51 °C (124 °F).
2. Stop the machine on a hard level surface. Engage the parking brake. Turn off the engine. Place
blocks in front of the wheels and place blocks behind the wheels.
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Illustration 1 g00904721
(4) Cover for the transmission control valve
3. Remove cover (4) from the transmission . Remove the differential drive shaft.
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Illustration 2 g00798160
Transmission Control Valve
(1) Test port for clutch 1
(2) Test port for clutch 2
(3) Test port for clutch 3
4. Attach the 8T-0856 Pressure Gauge (0 to 6,000 kPa (0 to 870 psi)) to test port (1). Operate the
engine in high idle with the transmission control (lever) in FIRST GEAR FORWARD. The
gauge pressure should read 2265 ± 180 kPa (329 ± 26 psi).
5. Operate the engine in high idle with the transmission control (lever) in FIRST GEAR
FORWARD. Depress the clutch pedal and wait for two seconds. The gauge pressure should
read 0 to 21 kPa (0 to 3 psi). Remove the gauge.
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120H Motor Grader CAF00001-UP (MACHINE) POWERED BY 3126B Engine(SEBP3... Page 5 of 5
6. Attach the 8T-0856 Pressure Gauge (0 to 6,000 kPa (0 to 870 psi)) to test port (2). Operate the
engine in high idle with the transmission control (lever) in SECOND GEAR FORWARD. The
gauge pressure should read 2350 ± 95 kPa (341 ± 14 psi).
7. Operate the engine in high idle with the transmission control (lever) in SECOND GEAR
FORWARD. Depress the clutch pedal and wait for two seconds. The gauge pressure should
read 0 to 21 kPa (0 to 3 psi). Remove the gauge.
8. Attach the 8T-0856 Pressure Gauge (0 to 6,000 kPa (0 to 870 psi)) to test port (3). Operate the
engine in high idle with the transmission control (lever) in FIRST GEAR REVERSE. The
gauge pressure should read 2295 ± 150 kPa (333 ± 22 psi).
9. Operate the engine in high idle with the transmission control (lever) in FIRST GEAR
REVERSE. Depress the clutch pedal and wait for two seconds. The gauge pressure should read
0 to 21 kPa (0 to 3 psi). Remove the gauge.
10. Reinstall cover (4).
11. For more information on the clutch pedal, refer to the Power Train Electronic Control System
Systems Operation, Testing and Adjusting.
Copyright 1993 - 2020 Caterpillar Inc. Mon Feb 17 21:19:53 EST 2020
Todos los derechos reservados.
Red privada para licenciados del SIS.
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