The monitor is supplied with three carbide tipped spikes that imbed into the surface on which it is operating. These
spikes will not grip on metal, marble, or similar hard surfaces. Do not operate on these surfaces without securing
the unit with the safety strap. For hose lay (Figure 7).
OPERATING INSTRUCTIONS
A. Set-Up
To deploy the Mercury monitor, remove the unit from the mounting bracket, hose bed or storage compartments and
advance the monitor and line to a safe operating position. Fully deploy both legs by rotating both legs down and back
into the fully deployed position (Figure 3). Set the monitor down with all three spikes in contact to the ground.
B. Safety Strap
An adjustable safety strap with hook is mounted on the front leg of the monitor. Adjust the strap by pulling the strap
through the D-ring to the required length. Connect the hook to aground spike (AB part # 34430084) or rigid object that is
located in front of the legs, pull the safety strap taut or wrap the strap taut around a fixed object in front of the legs and
secure the hook to the strap. DO NOT OPERATE THE UNIT WITHOUT THE SAFETY STRAP SECURED. The monitor can
generate reaction forces over 250 lbs. Make sure the object that you secure the safety strap can withstand these forces.
C. Valve
With the valve closed, charge the line and then slowly open the valve to avoid any damage. The monitor has a tag that
directs the open and closed position of the handle. To open the valve, pull the handle back and to close the valve,
push the handle forward (Figure 1).
D. Rotation and Elevation
The monitor can be used manned or unmanned at the specified angles (Figure 1). The rotation range is ±20°. The
elevation range is from 60° to 30° unmanned and from 60° to 20° manned. To lower the outlet below the 30° elevation
range while manned, simply push down on the outlet to the desired elevation. The carrying handle has a spring-loaded
elevation arm that returns the outlet to 30° if the operator releases his grip on the outlet or the monitor is unmanned.
E. Flow and Pressure
When used with a fog nozzle do not exceed the maximum rated flow of 500 gpm. When used with tips, do not exceed
the following discharge pressures.
Tip Size (mm)
1 1/2" (38 mm)
1 3/8" (35 mm)
1 1/4" (32 mm)
1 1/8" (28 mm)
1" (25 mm)
When finished, drain all water from the line, close the valve, fold the legs and secure the monitor in the mounting bracket,
hose bed or storage compartment.
PSI
kPa
55
380
80
550
100
690
120
830
150
1035
GPM
500
500
464
412
364
2