Troubleshooting Guide - Sullair 10B Series Operator's Manual

TROUBLESHOOTING (continued)
SYMPTOM
COMPRESSOR WILL NOT BUILD
UP FULL DISCHARGE PRESSURE
LINE PRESSURE RISES ABOVE
CUT--- OUT PRESSURE SETTING
ON PRESSURE SWITCH
EXCESSIVE COMPRESSOR FLUID
CONSUMPTION
PRESSURE RELIEF VALVE
OPEN REPEATEDLY
PROBABLE CAUSE
Air Demand is Too Great
Dirty Air Filter
Pressure Regulator Out of
Adjustment
Defective Pressure Regulator
Defective or Dirty Inlet Valve
Leak in Control System Causing
Loss of Pressure Signals
Defective Pressure Switch
Defective Solenoid Valve
Defective Blowdown Valve
High Pressure Shutdown Switch
is Defective or Adjustment is
Incorrect
Clogged Return Line or Orifice
Separator Element Damaged or
Not Functioning Properly
Leak in the Lubrication System
Excess Fluid Foaming
Fluid Level Too High
High Pressure Shutdown Switch is
Defective or Out of Adjustment
(135 PSIG [932kPa]).
Defective Pressure Relief Valve
Check Separator Differential
(plugged)
Section 6
MAINTENANCE
REMEDY
Check service lines for leaks or open
valves.
Check the filter indicator and change
if required.
Adjust regulator according to control
adjustment instructions in the Maintenance
section.
Check diaphragm and replace if necessary
(kit available).
Check that valve fully opens when full air
demand is present. Repair or clean as
necessary.
Check for leaks.
Check that diaphragm and contacts are not
damaged. Replace if necessary.
Repair 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).
Readjust or replace.
Clean strainer (screen and o--- ring replace---
ment kit available).
Clean orifice.
Change element.
Check all pipes, connections and
components.
Drain and change.
Drain to correct level.
Readjust below pressure relief valve setting
(200 PSIG [1379kPa]) or replace.
Replace pressure relief valve.
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