CompAir UK Ltd
5280D Compressor Publication 98407.1440
Page 32
1440.doc
FAULT
POSSIBLE CAUSE
RECOMMENDATION
No electrical supply to control panel. Check that isolator is in ON
position. Check for blown fuse.
Faulty isolator on control panel.
Check for voltage on each phase
from isolator. Dismantle, clean,
repair or renew as necessary.
Loose electrical connections.
Check tightness of all electrical
connections. Check for signs of
overheating or blackening of
cables at terminals.
Failure of control circuit fuse
Check and replace fuse as
necessary.
Failure of replacement fuse
Check control system for short
circuits.
Rest button on control panel not
engaged.
Press reset button.
Current overload in control panel
tripped.
Reset current overload.
Emergency stop button locked in.
Check all emergency stop
buttons are disengaged.
Manual/Auto switch set to off
position.
Set to manual or auto as
required.
Compressor previously tripped on
Protection Device
Press reset button to clear.
11.1
Compressor will not start?
Failure of the pressure switch
Remove and test operation.
Replace as necessary.
11.2
On Starting electric
motor 'hums'
?
Motor single phasing.
Check voltage on all three
phases
For START~DELTA starting: STAR
time too long
Reduce to correct level.
11.3
Compressor begins to slow
down on 'start'
On BELT DRIVEN units: belts loose Tighten belts to correct tension
Low oil pressure switch protection
operates
Check crankcase oil level. Check
for oil leaks, loose piping and
obstructions on suction to oil
pump.
Prime pump suction. Check
operation of pump drive.
Current overload set too low.
Check and adjust as necessary
STAR~DELTA timer set too low
Check and adjust as necessary
11.4
Compressor runs for a short
period and then stops
.
Electrical supply insufficient for
starting requirements
Check power supply. Consider
alternative starting methods.
Low suction gas pressure switch
operates
No or low gas supply pressure.
Check gas supply, inlet solenoid
valve operation.
Failure of override switch timer :
replace or reset as necessary.
11.5
Compressor runs for short
period then stops?
(GAS BOOSTERS ONLY)
High suction gas pressure switch
operates
Excess gas supply pressure.
Check setting or operation of
switch and reducing valve
operation.
Summary of Contents for 5280D.1.IAC
Page 3: ...DATE REMARKS DATE REMARKS logsheet5280 d...
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Page 44: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 38 1440 doc CRANKCASE 1...
Page 46: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 40 1440 doc CRANKCASE 2...
Page 48: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 42 1440 doc CRANKCASE 3...
Page 50: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 44 1440 doc CYLINDER 1st STAGE...
Page 52: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 46 1440 doc SUCTION VALVE COVER...
Page 60: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 54 1440 doc CROSSHEAD 1st STAGE...
Page 62: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 56 1440 doc PISTON 1st STAGE...
Page 64: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 58 1440 doc GLAND 1st STAGE...
Page 66: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 60 1440 doc OIL PUMP...
Page 68: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 62 1440 doc OIL PUMP FILTER...
Page 70: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 64 1440 doc INTERCOOLER...
Page 72: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 66 1440 doc 1st STAGE PIPE WORK...
Page 74: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 68 1440 doc...
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