©Copyright Task Force Tips, Inc. 2002-2015
LIX-630 July 2, 2015 Rev19
6
To minimize the risk of an out of control monitor:
•
Test Shut-off Valve before each use.
•
Tie off the monitor when practical.
•
Hook legs on stationary objects such as door frames, cracks, sign posts etc.
•
Keep elevation as high as practical.
•
Choose surfaces that allow spikes to dig in.
•
Assure that the hose is not lifting the spikes off the ground.
•
Reduce fl ow to limit nozzle reaction if stability is questionable
3.3.2 SAFETY SHUT-OFF VALVE OPERATION
The Blitzfi re is equipped with a Safety Shut-Off Valve. The Safety Shut-Off Valve will shut off the monitor’s fl ow if the monitor starts
to move. The Safety Shut-Off Valve relies on acceleration of the Blitzfi re as the signal to activate. It activates at approximately one
G of sideways acceleration. Placing the Blitzfi re on tilted surfaces (greater than 10 degrees) may inhibit the resetting of the Safety
Shut-Off Valve. The hose connected to the Blitzfi re should contain any forward or backwards motion to safe levels.
NOTICE
To make the Blitzfi re not shut off completely, see the card titled “Instructions to Maintain Minimal
Water Flow When the Safety Shut-off Activates”. (LIX-640)
Safety shut-off valve operation:
1. Set up monitor and charge the hose.
2. Point the nozzle in the desired direction.
3. Open the valve by pulling the locking pin and pulling back on the valve handle (see section 3.3.1)
4. Place the valve handle in the desired detent position (further back for more fl ow, further forward for less).
5. If the monitor starts to slide, the safety valve will sense the movement and release the valve.
• An internal spring and water pressure will move the valve forward to the closed position and
shut off the water fl ow.
• The valve handle will lock in the closed position.
6. The safety shut-off valve will automatically reset.
7. After the cause of the sliding has been corrected, reopen the valve as outlined in step 3.
NOTICE
Valve must be fully closed to reset the safety shut-off mechanism. Once tripped the valve handle
will not stay open unless the mechanism is reset by fully closing the valve.
If the safety shut-off valve fails to reset, the valve will not remain open. Failure to reset may be due to placing the monitor on an
excessively sloped surface.
WARNING
The safety shut-off valve is only sensitive to sideways acceleration of the monitor. Keep the
hose directly behind the monitor to reduce potential acceleration in the forward and backward
direction. Do not loop hose in front of monitor.
WARNING
The safety shut-off valve needs approximately one G of sideways acceleration to activate. At low
accelerations the monitor may travel several yards (meters) and gain enough velocity to cause
injury before the safety shut-off valve activates. Personnel several feet away and in the potential
path of a sliding monitor are at risk of injury. Keep non-operating personnel out of the potential
path of a sliding monitor.
WARNING
Improper repairs may result in a malfunctioning safety shut-off valve. If repair is needed on the
safety shut-off valve, return the monitor to Task Force Tips.
3.3.3 SAFETY SHUT-OFF VALVE TEST
WARNING
To avoid injury or death, test safety shut-off valve before each use.
With hose uncharged and Blitzfi re on a level surface:
1. Open the Valve Handle to the fully open position.
2. Grasp the monitor and give it a sideways jerk, rotate to trip the valve or hit on the side with a rubber mallet.
3. The Valve Handle should move to the closed position.
Note: With water fl owing the valve has additional forces on it that will close the valve the rest of the way.
If the Safety Shut-Off Valve fails the test, return the monitor to Task Force Tips to restore proper functioning of the safety shut-off
valve. If the monitor is used before repair, the user accepts the risk of an out of control monitor.
WARNING
The safety shut-off valve is intended to shut off the monitor when it moves. It will not prevent it
from moving. The device shall limit the motion and injury that may occur once the monitor starts
to move. Use adequate means to secure the monitor to prevent injury.
