TM 5-2420-232-10
0004
AUXILIARY HYDRAULIC CIRCUIT (HAND TOOLS) CONTINUED
Enable Auxiliary Hydraulic Circuit (Hand Tools)
0004
WARNING
Wear effective eye protection and gloves. Hydraulic fluid at pressure can injure you. Before
attempting to connect or disconnect attachment couplings, remove any residual hydraulic pressure
trapped in the service lines. Failure to follow this warning may result in injury or death to
personnel.
NOTE
The operating switch is of a momentary spring return type, so will return to the OFF position when
released (confirmation of the circuit s status is by the switch icon illumination). The switch icon
will illuminate to confirm the circuit is now enabled. (If the circuit fails to deliver hydraulic power,
ensure the external deactivation switch has not been operated. If it has, reset the switch by pulling
the switch out, and restart the above procedure.) If the circuit is deactivated by the engine being
stopped, the parking brake being released, or the external deactivation button having been pressed,
this will be confirmed by the switch icon light being extinguished. The above procedure must be
followed to reactivate the circuit.
Press the bottom of the operating switch (Figure 100, Item 1) in.
Disable Auxiliary Hydraulic Circuit (Hand Tools)
0004
NOTE
When the circuit is deactivated, the hydraulic system is designed to vent the pressure from the
auxiliary tool lines back to the tank. This will enable you to connect/disconnect the quick-release
Press the bottom of the switch (Figure 100, Item 1) in. The switch illumination will be extinguished to confirm the circuit is
deactivated.
Once the circuit has been deactivated, operate the tool activation trigger to vent any residual pressure held in the line before
disconnecting the hoses.
Change 1
0004-104
