Section 6
MAINTENANCE
30
TROUBLESHOOTING (continued)
SYMPTOM PROBABLE CAUSE REMEDY
COMPRESSOR WILL NOT BUILD Pressure Regulators Out of Adjust regulators for spiral valve and inlet
UP FULL DISCHARGE PRESSURE Adjustment butterfly valve according to control adjustment
(CONTINUED) instructions in the Maintenance Section.
Defective Pressure Regulator Check diaphragm and replace if necessary
(kit available).
LINE PRESSURE RISES ABOVE Leak in Control System Causing Check for leaks.
CUT---OUT PRESSURE SETTING Loss of Pressure Signals
ON PRESSURE SWITCH
Defective Pressure Switch Check that diaphragm and contacts are
functioning properly and are not damaged.
Replace if necessary.
Defective Solenoid Valve Check that Sullicon Control lever might have
moved to unload stop when the pressure switch
contacts open. Repair or replace if necessary
(kit available).
Defective Blowdown Valve Check that sump pressure is exhausted to the
atmosphere when the pressure switch contacts
open; repair or replace if necessary (kit
available).
High Pressure Shutdown is Re---adjust or replace.
Defective or Adjustment is Incorrect
Plugged Control Line Filter Clean or repair if necessary.
EXCESSIVE COMPRESSOR Clogged Return Line or Orifice Clean strainer (screen and o---ring replace ---
FLUID CONSUMPTION ment kit available).
Clean orifice.
Separator Element Damaged or Change separator.
Not Functioning Properly
Leak in the Lubrication System Check all pipes, connections and components.
Excess Fluid Foaming Drain and change.
Fluid Level Too High Drain until level acceptable level occurs.
Running with Pressure Too Low Check control adjustments and plant air usage.
PRESSURE RELIEF VALVE High Pressure Shutdown Switch is Re---adjust below pressure relief valve setting
OPEN REPEATEDLY Defective or Out of Adjustment (175 psig [12.1 bar]) or replace.
(135 psig [9.3 bar])
Defective Pressure Relief Valve Replace pressure relief valve.
Check Separator Differential
(Plugged)
LIQUID WATER IN COMPRESSED Water Vapor Condensation From Remove the water vapor from compressed air prio
AIR LINES Cooling and Compression Occurs to distribution through the air system. Check
Naturally operation of aftercooler and moisture separator.
Install a compressed air dryer sized for the flow and
dryness level required. (Note: Filters may also be
required to remove particulates, liquid oil aerosols or
for oil vapor removal. Change cartridges as
recommended by the filter manufacturer.) Check all
drain traps routinely to insure their proper
operation. Maintain them regularly.
To Next Page
Loading...
Need help?
General
