Gasmizer Manual - Submarine Manufacturing and Products Ltd

March 09
9.5 Electric Motor
Low Oil Pressure: 1. Blocked Oil Suction filter 1. Remove filter, clean and degrease.
2.Air leakage on suction side of oil 2.Check for tightness
pump i.e. suction filter cover, plug
in base of housing or face gasket
of main bearing housing
No oil pressure on
initial start up
(commissioning and
after overhaul):
Low First Stage:
3. Faulty oil pressure relief valve 3. Dismantle and examine spring ball
and seat, renew components as
necessary
4. Incorrect oil pressure relief 4. Reset relief valve
setting
5. Worn or damaged compressor 5. Fit new bearings
bearing
6. Faulty or worn oil pump 6. Fit new pump
7. Sump needs refilling 7. Replenish as necessary
8. Faulty pressure gauge 8. Replace pressure gauge
1. Wrong rotation 1. Check rotation
2. Oil pump not primed 2. Concentric pump, remove pump.
Fill with oil and replace.
3. Faulty pressure gauge 3. Replace pressure gauge
1. Valve not seating correctly in 1. Reseat or replace valve.
first stage cylinder
2. Air leak in piping between first 2. Locate leak and repair.
stage delivery and second stage
suction
3. Air leak through pressure
packing
9.5.1 Type: Leroy Somer 37kw (50Hp) 400 V 3ph 50/60Hz
3. Renew pressure packing
High Interstage 1. Incorrect BPR setting. 1. Reset BPR loader
Pressure:
2. Change over valve in wrong 2. Change valve position.
position for dive depth
3. Volume tank over pressurised 3.Vent gas from volume tank
4. Valves not seating correctly in 4. Reseat or replace valves
second stage cylinder head
5. Faulty pressure gauge 5. Replace pressure gauge
Booster Overheating: 1. Seawater cooler blocked 1. Dismantle and clean
High gas
temperature:
High gas pressure:
1. Intercooler or after cooler 1. Dismantle and clean
blocked
1. Change over valve not switched 1. Switch change over valve.
at
OM002 Rev 5 Page 106 of 168 Chap 9