6.5
Modulating control
Before disassembling any part of the modulating control system, the compressor should
be isolated from the air net and depressurized. The flexible coming from the water
separator should be disconnected (and of course afterwards reconnected when all the
other parts are reassembled).
Control valve
The control valve has to be replaced in case of malfunction, after 10000 working hours or after 3
years, whichever comes first.
Throttle valve
The rolling membrane of the actuating cylinder of the throttle valve (6) has to be replaced each
year. If, when inspected, it shows any signs of wear, it should also be replaced.
Actuating cylinder
Before disassembling the actuating cylinder, the compressor has to be completely depressurized
and isolated from the air net. Disconnect the flexible coming from the water separator.
Rod (3) should be clamped between soft beaks of a vice whilst disassembling as spring (5) is
mounted under tension.
Polished surfaces inside the actuating cylinder should be cleaned with a detergent and a soft
polishing-cloth. The new rolling membrane (6) has to be installed as soon as the polished
surfaces are dry.
Do not
clean the rolling membrane (6). Do not lubricate or grease the contact surfaces
of the rolling membrane (6).
Instruction book
76
APF219617
Summary of Contents for MAS 200
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