PowerHalt is a registered trademark of Pacbrake Co.
10
PH2 - AUTO / MANUAL / ELECTRIC WITH PULL CABLE(S)
L6372
L6372_REV6.17.04.2018
ECN 1-1859
VALVE OPERATION
Prior to running your system you must ensure that the valve is latched (clockwise) into its open position and
that the above installation procedure was completed as described. It is recommended that the engine be
shipped with the shut-off valve system in its active/open and ready-to-use state.
To carry out the emergency shutdown procedure, the pull cable handle must be pulled as this will shut the
valve and stop the engine.
CAUTION: No attempt to restart the engine should happen until the activation information/details are
understood and the valve is confi rmed to be returned back to the open “Run” position.
NOTE: Please reference your specifi c operation procedures defi ned by your organization for additional
operation specifi cs / details. If you require additional recommendations on the steps to operate your shut-off
valve, please reference PowerHalt’s operation manual based on your application.
VALVE MAINTENANCE
To ensure a trouble-free long life of your PowerHalt shut-off valve a scheduled maintenance procedure is
mandatory. It is recommended that you follow the requirements & procedures stated below:
MONTHLY REQUIREMENTS
● Inspect all clamps, pull cables and support brackets to ensure they are in good condition and to the
required torque.
● Inspect all wiring & cable runs to ensure there is no corrosion or wear.
● Inspect all hoses to ensure there are no cracks or damage.
● Activate the valve to ensure it is exercised.
See procedure below.
3 MONTH REQUIREMENT
(or at oil change interval’s whichever comes fi rst)
● Lubricate the PH2, fl ap O-ring, with Parker® Super O-Lube, Part # SLUBE 884-2, or equivalent.
VALVE ACTIVATION PROCEDURE:
1
Run engine at low RPM (preferably at idle).
2
Activate the PowerHalt shut-off valve by pulling the cable handle.
The engine should stop within a few seconds.
NOTE:
● If the engine does not shutdown in the specifi ed time, please check all intake piping and hoses
for leaks between the valve and the intake system.
● If the system is leak free and your valve still does not shut down the engine, please consult
PowerHalt’s service representative for support.
3
Once the engine stops, wait 30 seconds, then reset the valve by turning the red reset knob
clockwise to the open “Run” position with knob arrow in line with air fl ow direction.
CAUTION: The #1 failure mode of any valve in the market is seizing due to lack of use. As this is a safety
device, it is imperative that you employ safety activation testing at a minimum of once per month.
