Elkhart Brass SS-475GAAT - Manual (Page 6)

98477000 Rev. A
III. S
OLID
S
TRIKE
®
O
PERATION
A. Discharge Adjustment
The discharge size of the nozzle can be adjusted by simply pushing or pulling the handle of the
nozzle towards and away from the operator. The adjustment of the discharge size can be
accomplished without shutting the nozzle down. Pushing the handle forward will decrease the
discharge diameter. Pulling the handle toward the operator will increase the discharge
diameter. Spring-loaded ball detents are used to indicate discharge positions.
Important:
All users should become thoroughly familiar with the hydraulic characteristics of this equipment, and
the pumping system used to supply it. Personnel must be properly trained in all aspects of the nozzle
in order to produce effective fire fighting streams.
Warning:
The reaction force of this nozzle is dependent on the pressure and flow that is supplied to the nozzle.
Excess nozzle pressure may create an unsafe reaction force for the user. The nozzle reaction
formula for water is as follows:
NR = 1.5*d
2
*NP
NR = Nozzle Reaction (Pounds)
D = Nozzle Diameter (Inches)
NP = Nozzle Pressure (psi) (measured with pitot tube)