Book 29 Portable Monitor Flashcards
Book 29 Portable Monitor
The Crossfire Portable Monitor is manufactured by Task Force Tips (TFT).
reference
Book 29 Portable Monitor
Low nozzle elevation angles can cause portable monitors to slide or lift off of the ground which can result in injury or death.
Do not operate the monitor on the portable base below the elevation safety stop.
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Book 29 Portable Monitor
Securely tie the monitor to an object capable of withstanding ___ lbs (400 kg) of force.
900
Book 29 Portable Monitor
The Crossfire Upper Assembly weighs 17
The Stow-A-Way 800 Base weighs 43.7 pounds, including the integrated 4” in-line shutoff valve that weighs 23 pounds
the total weight of the portable monitor is approximately __ pounds.
61 pounds.
Book 29 Portable Monitor
The valve is designed to close automatically when the pressure in the monitor exceeds approximately ___ psi and open again when the pressure drops to that point.
5
Book 29 Portable Monitor
It is intended for maximum flows of 800 gpm. Task Force Tips has allowed the LAFD to flow up to 1000 gpm with the portable base as long as it is attached to a loop of loaded 4” supply hose.
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Book 29 Portable Monitor
TIE-DOWN STRAP
is __ feet in length.
8 feet
Book 29 Portable Monitor
The rotational position can be locked by moving the rotation lock lever to its down position as shown in the figures below. Before the upper assembly is removed from the base, the rotation lock should be manually disengaged.
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Book 29 Portable Monitor
When the nozzle is at an angle of 45 degrees, the force acting sideways is equal to the force acting downward on the base.
At an angle of 35 degrees, (the angle at the elevation safety stop), approximately __% of the nozzle reaction force is acting sideways on the base.
When the nozzle is at zero degree angle, with respect to the base, the entire reaction force is acting sideways on the base and there is no downward force at all.
82%
Book 29 Portable Monitor
Make the hose connection to the portable base and extend the hose straight back from the portable base at least ___ feet.
10
Book 29 Portable Monitor
The unit should be kept clean and free of dirt by flushing with water after each use. After each use, the unit should be inspected according to the following guide. All controls should be checked for freedom of movement and condition. Any inoperable or damaged part should be repaired or replaced immediately.
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Book 29 Portable Monitor
Worm Gear Lubrication:
Turn the elevation handwheel to move the nozzle to its highest elevation and pump grease (___) into the fitting in the worm gear housing until excess appears.
(medium viscosity automotive)
Book 29 Portable Monitor
350 GPM- 105 PSI 750 GPM- 110 PSI
500 GPM- 115 PSI 1000 GPM- 125 PSI
what the book currently says. old book said
110, 115, 125, 145
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Book 29 Portable Monitor
Spikes must be sharp to provide resistance to sliding. Replace any spike if the tip diameter exceeds ___ inch.
1/16
Book 29 Portable Monitor
SITE SELECTION
Safe operation of the monitor on the portable base begins with site selection. The site should be a safe distance from the fire yet within reach of the nozzle stream. Select a flat even surface within __ feet of the 4” supply hose that is looped around the monitor or a sturdy object that can be used as an attachment point for the anchor strap. Set up the portable base with the anchor point between the portable base and desired target of the nozzle stream.
8 feet
