Sullair 32 250L Series Operator's Manual page 29

5.8 TROUBLESHOOTING - GUIDE (CONTINUED)
SYMPTOM
MACHINE SHUTS DOWN WITH AIR DE-
MAND PRESENT (cont.)
MACHINE WILL NOT BUILD UP FULL
DISCHARGE PRESSURE
LINE PRESSURE RISES ABOVE CUT-
OUT PRESSURE SETTING ON PRES-
SURE SWITCH
EXCESSIVE COOLANT FLUID CON-
SUMPTION
CAUSE
Cooler plugged
Air demand too great
Dirty air filter
Pressure Regulator out of adjustment
Defective Pressure Regulator
Leak in control system causing loss of
pressure signals.
Defective pressure switch
Defective Pilot Valve
Defective Blowdown Valve
High Pressure Shutdown Switch is de-
fective or adjustment is incorrect
Clogged return line strainer or orifice
Separator element damaged or not func-
tioning properly
Leak in lubrication system
Section 5
MAINTENANCE
REMEDY
Clogged fluid filter, clean the main filter
element and change the bearing filter
element if maintenance indicator shows
a red signal.
Thermal valve not functioning properly.
Change element.
Defective discharge temperature thermis-
tor switch. Check for a short or open cir-
cuit to the probe and correct wiring, or
also check for short or open circuit to
control card. If current is not present, re-
place the control card. Should the above
checkout normal, it is possible that the
thermistor probe is defective.
Check service lines for leaks or open
valves.
Check filter indicator and change or
clean element if required.
Adjust regulator according to control ad-
justment instructions in the Maintenance
Section.
Check diaphragms and replace if neces-
sary (kit available).
Check for leaks.
Check that diaphragm and contacts are
functioning properly and are not dam-
aged. Replace if necessary.
Check that Sullicon Control Lever is
moved to unload stop when the Pressure
Switch contacts open. Repair or replace
if necessary (kit available).
Check that sump pressure is exhausted
to the atmosphere when the pressure
switch contacts open or repair or replace
if necessary (kit available).
Re-adjust or replace.
Clean strainer (screen replacement kit
available).
Clean orifice.
Change separator.
Check all pipes, connections and com-
ponents.
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