23
09
Troubleshooting
Operator’s Manual 1808 022016 ENG
SYMPTOM PROBABLE CAUSE REMEDIES
System ultimate pressure
ecessively high
System contaminated
by volatile material
Clean equipment with acetone, alcohol, or ether.
Pump ultimate pressure
ecessively high
Oil is contaminated Pump down using full gas ballast overnight.
Process equipment
leaks, vacuum pump
leaks
Check leaks.
Oil fl ow blocked Clean oil lines.
Discharge valve
malfunctioning
See D is c h arge V alv es on page 21.
Shaft seal leaking See Sh af t Seal on page 22.
Internal parts worn or
damaged
Disassemble pump and inspect parts for wear or
damage.
Pump noise at low
pressure
Hydraulic slap ncrease gas ballast valve opening.
Pump will not start or
stalls
ocked drive bearing Replace bearing.
Loose or broken belts
See St art ing Troubles or St alling on page 19 .
Lack of lubrication
Obstruction inside the
pump
Temperature too low
Flooding with oil
Loss of electrical
power
Table 9-1 – Common Symptoms and Remedies
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