Product Manual

Attention
Use only authorised parts. Any damage or malfunction caused by the use of
unauthorised 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 Stopping
section.
Open the isolating switch to prevent an accidental start.
Close air outlet valve (2) and depressurise 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 Air flow diagram, Initial start-up or Regulating system.
Condition Fault Remedy
1 Compressor starts running,
but does not load after a delay
time
Solenoid valve (Y1) out of
order
Replace valve
Inlet valve (IV) stuck in closed
position
Have valve checked
Leak in control air flexibles Replace leaking flexible
Minimum pressure valve (Vp)
leaking (when net is
depressurised)
Have valve checked
2 Compressor air output or
pressure below normal
Air consumption exceeds air
output of compressor
Check equipment connected
Choked air inlet filter element
(AF)
Replace filter element
Solenoid valve (Y1)
malfunctioning
Replace valve
Leak in control air flexibles Replace leaking flexible
Inlet valve (IV) does not fully
open
Have valve checked
Oil separator (OS) clogged Replace separator element
Safety valves leaking Replace valves
Instruction book
74 2920 7191 00