YOKE AS 2711573 - Caterpillar

Test Preparation
Drive the machine to a smooth, horizontal surface.
Illustration 2 g03820111
Move propel lever (1) to the NEUTRAL position.
Move parking brake switch (2) to the ON position.
Move throttle switch (3) into the LOW-IDLE position.
If necessary, move ECO mode switch (4) into the OFF position.
If necessary, move shift switch (5) into the LOW-SPEED position.
Illustration 3 g03820113
If equipped, use blade control pedal (6) to lower the blade to the ground.
Illustration 4 g03820115
After the engine has operated at low idle for 5 minutes, move engine start switch (7) to the OFF position.
Illustration 5 g03820843
Unhook latch (8) at the rear of the engine compartment, and open engine hood (9).
Illustration 6 g03820845
Move hood support bracket (10) in order to support engine hood (9).
Illustration 7 g03820847
Remove three bolts (11) and washers. Remove right side panel (12).
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Remove three bolts (13) and washers. Remove left side panel (14).
Illustration 9 g03820507
Disconnect drum brake supply hose assembly (15) from tee (16) at the "X7" port on the propel pump. Hand tighten Tool (E) on the hose assembly, then loosen the plug one-half turn to allow chamber venting. Use Tool (D) to cap the tee.
Disconnect axle brake supply hose assembly (17) from tee (16) at the "X7" port on the propel pump. Hand tighten Tool (E) on the hose assembly, then loosen the plug one-half turn to allow chamber venting. Use Tool (D) to cap the tee.
Illustration 10 g03824247
Connect Tool (A2) to forward pressure tap "DF" (18) for the drum pump.
Connect other Tool (A2) to forward pressure tap "DR" (19) for the drum pump. Test Procedure
Move engine start switch (7) to the START position. Release the switch when the engine starts.
Operate the engine at low idle for a few minutes. Use throttle switch (3) to operate the engine at high idle.
Operate the machine until the oil temperature reaches a minimum of 38 °C (100 °F) minimum.
Move shift switch (5) into the TRAVEL position.
Move parking brake switch (2) to the OFF position.
Move propel lever (1) slowly to the FORWARD position until relief pressure stabilizes. Monitor pressure on Tool (A1). The pressure should be 35500 1500 kPa (5149 218 psi). The drum and axle should not rotate. Note: Placing the propel lever in the FULL-FORWARD position will cause the system to generate excessive heat.
Move propel lever (1) to the NEUTRAL position.
Move propel lever (1) slowly to the REVERSE position until relief pressure stabilizes. Monitor pressure on Tool (A1). The pressure should be 35500 1500 kPa (5149 218 psi). The drum and axle should not rotate. Note: Placing the propel lever in the FULL-REVERSE position will cause the system to generate excessive heat.
Move propel lever (1) to the NEUTRAL position.
Move shift switch (5) into the LOW-SPEED position.
Move throttle control switch (3) to the LOW-IDLE position.
Move parking brake switch (2) to the ON position.
Allow the engine to run for 5 minutes. Move engine start switch (7) to the OFF position.
Connect axle brake supply hose assembly in