©Copyright Task Force Tips LLC 2011-2018
LIG-010 May 29, 2018 Rev05
11
5.1.4.2 TRIGGER FLOW CONTROL SPEED ADJUSTMENT
The IMPULSE valve contains a slow close mechanism to prevent
the nozzle from slamming off if the trigger is suddenly released.
The closing speed is set at the factory to be slow enough to reduce
water hammer, (“water hammer” is always present in any valve
when it is shut off. The slow close mechanism will reduce this
but cannot eliminate it completely) but fast enough to reduce the
potential danger of hose whipping from a dropped nozzle. The
closing speed may be adjusted as shown in the figure.5.1.4.2.
Do not unscrew the adjuster past the end of the hand grip (to
unscrew it too far could result in the loss of dampening fluid.)
Slower
Close
Faster
Close
Figure 5.1.4.2
WARNING
As the closing time is increased so does the risk of injury from an out of control nozzle. A flowing
nozzle can cause injury within the first second of lost control. Use caution when adjusting the
closing speed and always verify performance after adjustment.
5.1.4.1 IMPULSE TRIGGER LOCK
Use an 1/8” (3mm) punch to push out pin
and remove lock if the lock is not desired.
LOCK
TRIGGER
LOCK PIVOT PIN
To Lock:
Push on the lock while pulling back the trigger to
engage one of the four locked positions.
To Un-Lock:
Pull back slightly on trigger without any pressure
on the lock. The spring loaded lock should automatically move to
the unlocked position.
WARNING
When the trigger lock is engaged, the nozzle will not shut off if dropped. Always shut off nozzle
before releasing the pistol grip to avoid injury from an out of control nozzle.
