PISTON 3G5261 - Caterpillar

Illustration 37 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 38 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 39 g02549798
Move throttle control switch (6) to the LOW IDLE position. Hold the switch in this position for less than 1 second.
Illustration 40 g02549816
After the engine reaches low idle, move engine start switch (7) to the OFF position.
Assemble two sets of Tool (A) and two sets of Tool (B). Connect one Tool (A) to each Tool (B) .
Illustration 41 g02549823
Disconnect hydraulic line (8) and hydraulic line (9) from the auger motor. Cap port (10) with Tool (C). Cap port (11) with Tool (C). Plug fitting on hydraulic line (8) with Tool (D). Plug fitting on hydraulic line (9) with Tool (D) .
Illustration 42 g02549079
Open access panel (12) on the right side of the machine.
Illustration 43 g02549838
Connect Tool (B) to the forward pressure tap in port "MD" (13) .
Illustration 44 g02549982
Connect Tool (B) to the reverse pressure tap in port "C" (14) .
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.
Operate the engine at low idle for a few minutes.
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 45 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 46 g02549989
Move left auger switch (15) to the MANUAL position. Hold the switch in this position.
Record the pressure at the forward pressure tap in port "MD" (13). The pressure should be 37200 2100 kPa (5000 300 psi).
Move left auger switch (15) to the AUTOMATIC position.
Move auger reverse switch (16) to the LEFT position.
Record the pressure at the reverse pressure tap in port "C" (14). The pressure should be 37200 2100 kPa (5000 300 psi).
Release auger reverse switch (16) .
Move left auger switch (15) to the OFF position.
Move throttle control switch (6) 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 (7) to the OFF position.
If the forward pressure and the reverse pressure are both within the specified range, the system is operating within design parameters. Go to Step 32. If either the forward pressure or the reverse pressure