Attention
Use only authorized parts. Any damage or malfunction caused by the use of
unauthorized parts is not covered by Warranty or Product Liability.
Apply all relevant
Safety precautions during maintenance or repair
Before carrying out any maintenance or repair work on the compressor: push the stop
button (6).
Wait until the compressor has stopped and switch off the voltage. See the
section.
Open the isolating switch to prevent an accidental start.
Close air outlet valve (2) and depressurize the compressor by opening the oil filler plug
(3) one turn.
Open manual condensate drain valves (4 and/or 5).
The air outlet valve (2) can be locked during maintenance or repair as follows:
• Close the valve.
• Remove the screw fixing the handle.
• Remove the handle.
• Fit the screw.
Faults and remedies
For all references given hereafter, see
,
.
Compressor
Condition
Fault
Remedy
1
The machine does not start
No power
Check power supply
Fuse (F1) blown
Replace fuse
The main motor thermal
protection has tripped
Check and let motor cool down; to
reset/restart, move compressor start/
stop switch to 0, then to I
2
The machine does not start,
high oil temperature lamp is
on (temperature switch
tripped)
Oil cooler is dirty
Clean cooler
Ambient temperature too high Improve ventilation in compressor
room
Oil level too low
Top up oil tank
3
The compressor does not
reach working pressure
Blow-off solenoid valve (Y1)
remains open
Check; replace valve if necessary
4
Excess oil consumption
Oil separator (OS) clogged
Replace oil separator
Oil level too high
Drain to correct level
Air dryer
Condition
Fault
Remedy
1
No compressed air passes
through the dryer
Pipes are frozen inside
Hot-gas by-pass valve
malfunctioning; consult Atlas Copco
2
Condensate in the piping
Insufficient condensate drain
Check the operation of timer (T)
The dryer is working outside
its rating
Check room temperature - air
temperature at dryer. Clean the
condenser and check operation of
fan
Instruction book
78
2920 7199 10
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Страница 18: ...2 3 Oil system Oil system Pack Instruction book 16 2920 7199 10 ...
Страница 20: ...2 4 Cooling system Pack units Instruction book 18 2920 7199 10 ...
Страница 60: ...Start up Start up sheet Label on the top Instruction book 58 2920 7199 10 ...
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