©Copyright Task Force Tips LLC 2002-2020
10
LIN-040 November 30, 2020 Rev15
5.1.5 IMPULSE TRIGGER FLOW CONTROL
5.1.5.1 IMPULSE TRIGGER LOCK
To Lock:
Push on the lock while pulling back the trigger to engage one of the
four locked positions.
To Unlock:
Pull back slightly on the trigger without any pressure on the lock.
The spring loaded lock should automatically move to the unlocked position.
5.1.5.2 IMPULSE 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.
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.)
WARNING
Releasing grip on a nozzle while flowing will result in an out of control nozzle. Serious injury or
death could result. Do not attempt to regain control of a nozzle while flowing.
WARNING
When the trigger lock is engaged, the nozzle will not shut off if dropped. Always shut off the nozzle
before releasing the pistol grip to avoid injury from an out of control nozzle.
WARNING
A closing time that is too slow increases the risk of an out of control nozzle. Loss of control could
result in injury or death. Use caution when adjusting the closing speed, always verify performance
after adjustment, and ensure that all adjustments are made by qualified personnel under the
direction of the AHJ.
WARNING
A closing time that is too quick increases the risk of water hammer from a suddenly released trigger
valve. Loss of control or a burst hose could result in injury or death. Use caution when adjusting
the closing speed, always verify performance after adjustment, and ensure that all adjustments are
made by qualified personnel under the direction of the AHJ.
NOTE: THE TRIGGER RETURN
S
TO OFF
IF NOT HELD OR LOCKED
OFF
ON
TRIGGER
LOCK (optional)
Use an 1/8” (3mm) punch to push out pin
and remove lock if the lock is not desired.
LOCK
TRIGGER
LOCK PIVOT PIN
Slower
Close
Faster
Close
