ANGLE 1V7009 - Caterpillar

Illustration 8 g01410958
The Axle Pump is Shown From Left Side.
Connect one Tool (B) to each of the following pressure taps. Mark each gauge for identification:
Forward pressure tap (8) (drum pump)
Reverse pressure tap (7) (drum pump)
Forward pressure tap (9) (axle pump)
Reverse pressure tap (10) (axle pump)
Move engine start switch (4) to the START position. Release the switch when the engine starts.
Operate the engine at low idle for few minutes. Move throttle switch (3) to the HIGH IDLE position.
Monitor hydraulic oil temperature with Tool (C). Operate the machine until the oil temperature reaches 43 5.6 °C (110 10 °F).
Illustration 9 g01410960
Move shift switch (11) to the LOW SPEED position. Move parking brake switch (2) to the RELEASE position.
Move propulsion lever (1) in the forward direction. Position the propulsion lever in the FULL FORWARD position. Record the pressure at forward pressure tap (8) for the drum pump and forward pressure tap (9) for the axle pump.
Move propulsion lever (1) in the reverse direction. Position the propulsion lever in the FULL REVERSE position. Record the pressure at reverse pressure tap (7) for the drum pump and at reverse pressure tap (10) for the axle pump.
Move propulsion lever (1) to the NEUTRAL position.
Move shift switch (11) to the HIGH SPEED position.
Move propulsion lever (1) in the forward direction. Position the propulsion lever in the FULL FORWARD position. Record the pressure at forward pressure tap (8) for the drum pump and at forward pressure tap (9) for the axle pump.
Move propulsion lever (1) in the reverse direction. Position the propulsion lever in the FULL REVERSE position. Record the pressure at reverse pressure tap (7) for the drum pump and at reverse pressure tap (10) for the axle pump.
Move propulsion lever (1) to the NEUTRAL position.
Table 2
Example of Test Pressures for Pump Synchronization    
Pressure Tap for Axle Pump     Pressure Tap for Drum Pump     Speed and Direction    
Low High    
Forward Reverse     Forward     Reverse    
(9)     -    
6900 kPa (1000 psi)     Charge Pressure    
7600 kPa (1100 psi)     Charge Pressure    
-     (8)    
6200 kPa (900 psi)     Charge Pressure    
7200 kPa (1050 psi)     Charge Pressure    
(10)     -     Charge Pressure    
5900 kPa (850 psi)     Charge Pressure    
6900 kPa (1000 psi)    
-     (7)     Charge Pressure    
6900 kPa (1000 psi)     Charge Pressure    
7600 kPa (1100 psi)    Note: The values that are shown above are for example only. The actual pressures will vary depending on the conditions at the work site.
Move throttle switch (3) to the LOW IDLE position.
Move parking brake switch (2) to the ON position.
Move engine start switch (4) to the OFF position.
The differential pressure should be less than 1500 kPa (220 psi) in each test condition. If the pressure is inside the specified range for each test condition, go to Step 31. If the pressure is outside the specified range and