Section 8
TROUBLESHOOTING
31
LINE PRESSURE RISES
ABOVE CUT-OUT PRES-
SURE SETTING ON
PRESSURE SWITCH
(CONTINUED)
EXCESSIVE COMPRES-
SOR FLUID CONSUMP-
TION
EXCESSIVE COMPRES-
SOR FLUID CONSUMP-
TION (CONTINUED)
PRESSURE RELIEF
VALVE OPEN REPEATED-
LY
LIQUID WATER IN COM-
PRESSED AIR LINES
Plugged Control Line Filter
Clogged Return Line or Orifice
Separator Element Damaged or Not
Functioning Properly
Leak in the Lubrication System
Excess Fluid Foaming
Fluid Level Too High
Running with Pressure Too Low
High Pressure Shutdown Switch is
Defective or Out of Adjustment (135
psig [9.3 bar])
Defective Pressure Relief Valve
Check Separator Differential
(Plugged)
Water Vapor Condensation From
Cooling and Compression Occurs
Naturally
Clean or repair if necessary.
Clean strainer (screen and o-ring replacement kit
available).
Clean orifice.
Change separator.
Check all pipes, connections and components.
Drain and change.
Drain until an acceptable level occurs.
Check control adjustments and plant air usage.
Re-adjust below pressure relief valve setting (175
psig [12.1 bar]) or replace.
Replace pressure relief valve.
Remove the water vapor from compressed air
prior to distribution through the air system. Check
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 car-
tridges as recommended by the filter manufactur-
er.) Check all drain traps routinely to insure their
proper operation. Maintain them regularly.
8.2 TROUBLESHOOTING GUIDE (CONTINUED)
SYMPTOM PROBABLE CAUSE REMEDY
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