Sullair 10B Series - Troubleshooting Guide

Section 6
MAINTENANCE
33
TROUBLESHOOTING (continued)
SYMPTOM PROBABLE CAUSE REMEDY
COMPRESSOR WILL NOT BUILD
UP FULL DISCHARGE PRESSURE Air Demand is Too Great Check service lines f or leaks or open
valves.
Dirty Air Filter Check the filter indicator and change
if required.
Pressure Regulator Out of Adjust regulator according to control
Adjustment adjustment instructions in the Maintenance
section.
Defective Pressure Regulator Check diaphragm and replace if necessary
(kit available).
Defective or Dirty Inlet Valve Check that valve fully opens when full air
demand is present. Repair or clean as
necessary.
LINE PRESSURE RISES ABOVE
C U T --- O U T P R E S S U R E S E T T I N G
ON PRESSURE SWITCH Leak in Control System Causing
Loss of Pressure Signals Check for leaks.
Defective Pressure Switch Check that diaphragm and contacts are not
damaged. Replace if necessary.
Defective Solenoid Valve Repair kit available.
Defective Blowdown Valve Check that sump p ressure is exhausted to
the atmosphere when the pressure switch
contacts open or repair or replace if
necessary (kit available).
High Pressure Shutdown Switch
is Defective or Adjustment is
Incorrect Readjust or replace.
EXCESSIVE COMPRESSOR FLUID
CON SUMPTION Clogged Return Line or Orifice Clean strainer (screen and o--- ring replace---
ment kit available).
Clean orifice.
Separator Element Damaged or
Not Functioning Properly Change element.
Leak in the Lubrication System Check all pipes, connections and
components.
Excess Fluid Foaming Drain and change.
Fluid Level Too High Drain to correct level.
PRESSURE RELIEF VALVE
OPEN REPEATEDLY High Pressure Shutdown Switch is
Defective or Out of Adjustment
(135 PSIG [932kPa]). Readjust below pressure relief valve setting
(200 PSIG [1379kPa]) or replace.
Defective Pressure Relief V alve Replace pressure relief valve.
Check Separator Differential
(plugged)