2-16. PRIMING FIR E PUMP (Continued).
Do not operate priming pump motor continuously for more than 30 seconds. If priming pump
does not prime fire pump and discharge a solid stream of water in 30 seconds, stop both priming
pump and fire pump and check for leaks. Allow at least a two-minute cool-off period before
operating the primer again.
At street side operator control panel, pull out the primer valve control knob (22, figure 2-1) to start priming.
Operate priming pump until it emits a solid stream of water through its discharge pipe. When pump is
primed, release the primer valve control knob (22).
2-17. DISENGAGING FIRE PUMP.
Leave parking brake (10, figure 2-2) and micro-lock brake control (24, figure 2-3) engaged. Wait until
tachometer (19, figure 2-3) reading is between 500-700 rpm. before disengaging fire pump. Damage to
pump may result if engine speed is too rapid.
Wait until tachometer (19, figure 2-3 ) reading is
between 500-700 rpm. Before disengaging fire pump.
Damage to pump may result if engine speed is too
Depress clutch pedal and push pump/PTO control knob (25, figure 2-3) in to disengage fire pump.
Pump/PTO indicator light (26) will de-activate.
Depress brake pedal (8, figure 2-2). Move manual transmission gear selector (4) to desired drive position.