Instruction book
6 Problem solving
1 Insufficient
air
pressure
a Air
leak
a
Check and correct as necessary
b
Air filter choked
b Replace
filter
c
Air pressure switch incorrectly set
c Adjust
switch
d
Air consumption exceeds maximum output of compressor
d
Check equipment connected
e Damaged
valve
e
Inspect valves and replace parts where necessary
f
Unloader
1)
malfunctioning
f
Inspect and replace parts where necessary
g
Solenoid valve
1)
out of order
g
Remove and check. Replace if necessary
2
Unit does not speed up
a
Voltage drop at motor terminals
a
Consult power supplier. Use correct size of cable
b
Unloader malfunctioning
b See
1f
c
Solenoid valve out of order
c See
1g
d
Blow-off silencer
1)
choked
d Replace
3
Air receiver pressure rises above maximum and causes safety valve to blow
a
Air pressure switch or pilot valve
1)
incorrectly set or out of order
a
Check. Replace switch or valve, if necessary
b
Solenoid valve defective
b See
1g
c Unloader
malfunctioning
c See
1f
d Blow-off
silencer
choked
d See
2d
4 Relief
valve
blows
1)
a
Defective inlet valve in HP cylinder head
a
Inspect and replace part(s) as necessary
b
Relief valve not airtight
b Replace
valve
5
Receiver does not hold pressure
a
Check valve leaks
a
Check for broken valve and springs
b Air
leaks
b
Check and correct as necessary
6
Too frequent starting/too short operating periods
a
Air pressure switch or pilot valve
1)
incorrectly set
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