Labrie MINIMAX Maintenance Manual page 96

88 Hydraulic System
Figure 5-15 Quick-connect coupler
Warning! Make sure that the ball valve on the suction line is completely open before starting the
engine. Failure to do so may damage the hydraulic system.
Put the transmission in Neutral, start the engine and engage the hydraulic pump.
6.
Adjust gripper pressure:
7.
Close the gripper using the corresponding lever on the valve.
7 a.
While maintaining the lever in place, adjust the relief valve of the "gripper close" side of the
7 b.
valve section to 1200 psi (screw or unscrew depending on the gauge readout).
Open the gripper and maintain the lever in place.
7 c.
While maintaining the lever in place, adjust the relief valve of the "gripper open" side of the
7 d.
valve section to 750 psi (screw or unscrew depending on the gauge readout).
Figure 5-16 Gripper relief valve adjustment screws
"Gripper open" relief
adjustment screw
"Gripper close"
relief adjustment
screw