PUMP GP-PISTON 1414871 - Caterpillar

Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.
Table 1
Required Tools    
Tool    Part Number    Description    Qty    
A     1U-6602     Photo-Tachometer     1    
Drive the machine to a smooth, horizontal surface.
Illustration 1 g02544624
Move propel lever (1) to the NEUTRAL position.
Rotate speed dial (4) to the MINIMUM position.
Move parking brake switch (2) to the ON position.
Move propel mode switch (3) to the PAVE position.Note: The machine must be in PAVE mode in order to operate the screed lift system.
Illustration 2 g02544758
Move screed lift switch (5) to the RAISE position. Completely lift the screed.
Illustration 3 g02544939
Engage screed lock mechanism (6) on both sides of the machine.
Move screed lift switch (5) to the FLOAT position. Move the screed lift switch on the right instrument panel to the FLOAT position.Note: The screed lift switch on both instrument panels must be in the FLOAT position in order for the screed to lower.
After the screed rests on the screed lock mechanisms, move screed lift switch (5) to the HOLD position.
Illustration 4 g02596096
Move left screed extend switch (7) to the EXTEND position. Release the switch when the left screed extender is fully extended.
Move right screed extend switch (8) to the EXTEND position. Release the switch when the right screed extender is fully extended.
Move auger height switch (9) to the RAISE position. Fully raise the augers.
Illustration 5 g02597022
Move throttle control switch (10) to the LOW IDLE position. Hold the switch in this position for less than 1 second.
Illustration 6 g02597136
After the engine reaches low idle, move engine start switch (11) to the OFF position.
Illustration 7 g02597156
Install a small piece of reflective tape (12) from Tool (A) on the left auger shaft.Note: If the right auger is being tested, place a small piece of reflective tape on the right auger shaft.
Move engine start switch (11) to the START position. Release the engine start switch when the engine starts.
Move throttle control switch (10) to the HIGH IDLE position twice. For each switch actuation, hold the switch in this position for less than 1 second. The engine speed should increase to 2200 rpm.
Illustration 8 g02545141
Monitor the hydraulic oil temperature on the operator display. Operate the machine until the oil temperature reaches 43 5.6 °C (110 10 °F).
Illustration 9 g02597178
Note: If the right auger is being tested, operate right auger switch (14) in Step 19 and Step 20.
Move left auger switch (13) to the MANUAL position. Use Tool (A) to measure the speed. Auger speed should be 151 5 rpm.
Move left auger switch (13) to the OFF position.
Move throttle control switch (10) to the LOW IDLE position. Hold the switch in this position for less than 1 second.
After the engine reaches low idle, move engine start switch (11) to the OFF position.
If the measured auger speed is not within the specified range,