Anchoring By Weight; Anchoring By Spike Holds; Anchoring By Hooking Legs - Task Force Tips BLITZFIRE Series Instructions For Safe Operation And Maintenance

5.1 ANCHORING BY WEIGHT

On surfaces with good traction a person's weight on the monitor and/or hose may be sufficient to keep the monitor from moving.
This is highly dependant on the friction of the surface. The ability to keep one or more than one person's weight on the monitor is
subject to operator fatigue and may not be as reliable as other methods. Operating at limited flows will reduce the risk.

5.2 ANCHORING BY SPIKE HOLDS

Anchoring by spike holds is defined as intentionally placing one or more spikes into a crack, hole, or other hold to anchor the
monitor from moving. On hard smooth surfaces such as ceramic tile, smooth concrete, marble, terrazzo, or steel decking the
Blitzfire's spikes may not hold well. Placing the spikes into cracks, expansion joints, or gratings or the like will help hold the
monitor from sliding. Even with the spikes anchored, sliding may be caused by the surface cracking under the load, or from the
hose or nozzle moving the monitor thereby dislodging the spikes from their hold. Figure 4.3.1 shows a close up of a spike caught
in a crack.
The holding ability of the spikes on soft surfaces such as sand, gravel and mud is generally poor, therefore other anchoring
methods should be considered.
Figure 4.3.1 Spike Caught in a Crack

5.3 ANCHORING BY HOOKING LEGS

The legs on the Blitzfire point back slightly so they can act as a hook for anchoring on posts, walls, door frames or other fixed
objects. Sliding can occur if the legs are unhooked due to the influence of the hose, nozzle, or operator. See figure 4.3.2 for
illustrations of hooking the legs.
Poor
Good
Nozzle reaction keeps leg hooked. Nozzle reaction tends to
Object is close to hose. unhook leg.
Good Poor
Nozzle reaction tends to
Nozzle reaction keeps leg hooked.
unhook leg.
Hose hits wall and helps
hold position.
Figure 4.3.2 Hooking Legs to Gain Support
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