Check flow rate on seawater pump flow rate indicator F1 (Figure 3-1).
If flow rate is near 350 gpm, go to step k.
If flow rate is very much less than 350 gpm, make sure seawater valves are fully open or completely
closed as specified in seawater system operating procedures (TM 55-1930-209-14 & P-2).
Make sure seawater strainer and seawater filter are not clogged.
Repeat step j.
Open valve RO11 to allow feedwater from cartridge filter assembly to flow through HP pump.
Close valve RO16 to prevent HP pump discharge water from flowing back to cartridge filter assembly.
Make sure valves R020 and R021 are open to allow product water from RO block to flow directly overboard
through port shell overboard discharge in void 3.
Make sure valve RO15 is closed to prevent water from flowing to drinking water storage tanks.
The HP pump may be damaged if it is 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 assembly output pressure gauge P3 must
show 20 psi minimum. Do not apply throttle when starting engine.
Start HP pump (Figure 3-2).
Set speed control to idle position (full forward).
Pull shutdown lever out to start position and turn starter switch to START. Hold shutdown lever out until
oil pressure builds up in engine and holds shutdown lever in out position.
If engine does not start in 30 seconds, release starter switch and wait 2 minutes for starter to cool before
After engine starts:
Release starter switch.
Continue to hold shutdown lever out until it stays in run position.
Allow engine to idle for 3-5 minutes or until all systems reach operating temperatures.
Check gauges for readings listed below:
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.
Will rise out of white zone into green zone as engine continues to idle.
Slightly positive near zero.
Normal (green) range. If indicator registers below 20 psi (red zone), wash
primary fuel filter and replace secondary fuel filter element.
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 3-1).