3157204 GENERATOR AR Caterpillar parts GENERATOR
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Optional Tools (1)
Number    Description    Qty
C (1)     198-4234     Pressure Gauge Tool Gp     1
D (1)     198-4236     Adapter Cable As     1
E     198-4238     Pressure Sensor Gp
0 to 35000 kPa (0 to 5000 psi)     1
( 1 ) The optional tools can be used in place of the digital pressure measurement tools which are specified in the required tool list.
( 1 ) The 198-4234 Pressure Gauge Tool Gp and the 198-4236 Adapter Cable As are part of the 198-4240 Digital Pressure Indicator .
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 FLOAT position. Allow the screed to lower to the ground.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 ground, move screed lift switch (5) to the HOLD position.
Illustration 3 g02547937
Move throttle control switch (6) to the LOW IDLE position. Hold the switch in this position for less than 1 second.
Illustration 4 g02549056
After the engine reaches low idle, move engine start switch (7) to the OFF position.
Illustration 5 g02556649
Open access door (8) on the left side of the machine.
Illustration 6 g02562099
Right Side of Auxiliary Valve
Assemble Tool (B). Install Tool (B) in port "G1" (9) of the auxiliary valve. Connect Tool (B) to Tool (A) .
Move screed lift switch (5) to the HOLD position.
Move engine start switch (7) to the START position. Release the engine start switch when the engine starts.
Move throttle control switch (6) 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 7 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).
Move throttle control switch (6) to the LOW IDLE position. Hold the switch in this position for less than 1 second. The engine speed should decrease to 1000 50 rpm.
Monitor pressure at port "G1" (9) on Tool (A). The pressure should be 4830 345 kPa (700 50 psi).
Move engine start switch (7) to the OFF position.
If the pressure is within the specified range, go to Step 23. If the pressure is not within the specified range, go to Step 20.
Illustration 8 g02562137
Loosen lock nut (10) on the pressure reducing valve. In order to increase pressure, rotate adjustment screw (11) clockwise. In order to decrease pressure, rotate adjustment screw (11) counter clockwise.
Hold adjustment screw (11) in place and tighten lock nut (10) .
Go to Step 13.
Remove the tooling. Close access door (8) .
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