TM 55-1930-209-14&P-1
n.
Make sure valve RO15 is dosed to prevent water from flowing to drinking water storage tanks.
CAUTION
The HP pump may be damaged if run dry. Since flow from the seawater pump
primes HP pump, never start HP pump unless seawater pump is on and feedwater
is flowing to HP pump. Cartridge filter output pressure gauge P3 must show 20 psi
minimum. Do not apply throttle when starting engines.
o.
Start HP pump (Figure 13-7, 1 of 2).
(1)
Set speed control to idle position, full forward.
(2)
Pull shutdown (kill) lever out to start position and hold while rotating START switch to the right. Hold
shutdown lever out until oil pressure builds up in engine and holds shutdown lever in out position.
(3)
If engine does not start in 30 seconds, release START switch and wait 2 minutes for starter to cool before
trying again.
(4)
After engine starts:
(a)
Release starter switch.
(b)
Continue to hold shutdown lever out until it stays in run position.
(c)
Allow engine to idle for 3-5 minutes or until all systems reach operating temperatures.
(d)
Check gauges on side of speed control (Figure 13-7, 2 of 2) for readings listed below.
Gauge
Initial reading
Oil pressure
Out of red zone (oil pressure should rise within 15 seconds after engine
starts). Will indicate normal (green) range when engine is running at rated
speed.
Water temperature
Will rise out of white zone into green zone as engine continues to
idle.
Ammeter
Slightly positive near zero
Fuel pressure
Normal (green) range. If indicator registers below 20 psi (red zone), wash
primary fuel filter and replace with secondary fuel filter element
p.
When gauges indicate acceptable (normal) readings, slowly increase engine speed by turning speed control
counterclockwise until seawater pump flow rate indicator F1 reads 350 gpm (Figure 13-6).
q.
Make sure seawater pump discharge pressure gauge P1 reads 100 psi and product water flowmeter F2 reads 0.
r.
Set up normal product water flow as follows:
(1)
Gradually close brine throttling valve RO7 and increase engine speed until product water flowmeter F2
reads about 108 gpm.
(2)
At the same time, make sure HP pump discharge pressure gauge P4 reading does not exceed 835 psi.
(3)
Make sure brine discharge pressure gauge P5 reading does not exceed 820 psi.
13-28
