Sullivan-Palatek 125UD, Operating And Parts Manual

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__________________________________SULLIVAN-PALATEK
25
6.7 TROUBLESHOOTING (CONTINUED…)
SYMPTOM PROBABLE CAUSES AND REMEDIES
C. MACHINE WILL NOT BUILD UP FULL
DISCHARGE PRESSURE
1. Air demand too great. Repair system air leaks.
Add compressor capacity to satisfy demand.
2. Dirty air filter. Change or clean element if
required.
3. Micro processor control setting off. See 6.5 for
adjustment procedure.
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. Defective blow-down valve. Check that sump
pressure is exhausted to the atmosphere when
unload solenoid opens. Replace if necessary.
3. 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. Defective inlet valve. Repair inlet valve
4. Operating pressure below 60 psig. Repair
minimum pressure valve.
SYMPTOM PROBABLE CAUSES AND REMEDIES
F. LINE PRESSURE VENTING THROUGH
BLOWDOWN
1. Defective Check Valve portion of Minimum
Pressure/Check Valve. Repair or replace
check valve.
2. Unload solenoid open.