Hale MG - Manual (Page 42)

Muscle Pumps
2-8
5. Turn the hand wheel slowly clockwise, until
the amber light just goes out. Then turn the
hand wheel one additional full turn clockwise
for proper operation.
THE TPM PRESSURE CONTROL VALVE
MUST BE SET SLIGHTLY HIGHER THAN
THE GOVERNOR CONTROL FOR PROPER
OPERATION.
6. Put the governor control in the Pressure
Governor mode; the system is now set.
7. Use the following procedures to change the set
pressure while running:
Increasing Pressure
a. Set the TPM to a pressure (by the
indicator) slightly higher than the desired
new pressure.
b. Put the governor control in the RPM
mode, and increase the speed to the new
pressure.
c. Move the TPM handwheel counterclockwise
until the relief valve opens and the amber
pilot light comes on.
d. Turn the handwheel slowly clockwise,
until the amber light just goes out. Then
turn the handwheel one additional full turn
clockwise for proper operation.
THE TPM PRESSURE CONTROL VALVE
MUST BE SET SLIGHTLY HIGHER THAN
THE GOVERNOR CONTROL FOR PROPER
OPERATION.
e. Put the governor control in the Pressure
Governor mode; the system is now set.
Decreasing Pressure
a. Put the governor control in the RPM
mode, and reduce the speed to the new
pressure.
b. Move the TPM handwheel countercloc kwise
until the relief valve opens and the amber
pilot light comes on.
c. Turn the handwheel slowly clockwise,
until the amber light just goes out. Then
turn the handwheel one additional full turn
clockwise for proper operation.
THE TPM PRESSURE CONTROL VALVE
MUST BE SET SLIGHTLY HIGHER THAN
THE GOVERNOR CONTROL FOR PROPER
OPERATION.
d. Put the governor control in the Pressure
Governor mode; the system is now set.
Emergency Pump Shift Procedures
Before implementing manual override shift
procedures, repeat recommended procedures. If the
shift fails to take place, follow these procedures.
1. Bring the truck to a complete stop.
2. Apply the truck parking brake, and chock the
wheels.
3. Shift the truck transmission to the NEUTRAL
position.
4. For Pump or Road position, put the in-cab shift
control in the Neutral position. (Neutral
position is exactly in the middle of the road
and pump position.
5. Shut down the engine.