Sullivan-Palatek 125G, Operating And Parts Manual, Page: 27 / 66

SULLIVAN-PALATEK______________________________
27
6.7 TROUBLESHOOTING, CON’T.
SYMPTOM PROBABLE CAUSES AND REMEDIES
D. LINE PRESSURE RISES ABOVE CUT-
OUT PRESSURE 1. Leak in control system causing loss of
pressure signal. Replace tubing/repair
leak.
2. Improperly adjusted or defective regulator.
Readjust or replace if necessary.
3. Defective blowdown valve. Check that
sump pressure is exhausted to the
atmosphere when pressure switch opens.
Replace if necessary.
4. Faulty inlet valve. Repair or replace.
SYMPTOM PROBABLE CAUSES AND REMEDIES
E. EXCESSIVE LUBRICOOLANT
CONSUMPTION 1. Clogged oil return line. Clean strainer
and/or orifice.
2. Separator element is damaged or not
functioning properly. Change separator.
3. Leak in lubrication system. Check all
pipes, connections and components.
4. Defective inlet valve. Repair inlet valve
5. Operating pressure below 60 psig. Repair
minimum pressure valve.
SYMPTOM PROBABLE CAUSES AND REMEDIES
F. RELIEF VALVE OPENS REPEATEDLY 1. Faulty Pressure Relief Valve. Replace.
2. Incorrect control settings. Re-adjust/as per
6.5
SYMPTOM PROBABLE CAUSES AND REMEDIES
G. LINE PRESSURE VENTING THROUGH
BLOWDOWN 1. Defective Check Valve portion of Minimum
Pressure/Check Valve. Repair or replace
check valve.