KAESER Premium Compact W 200/4, Service Manual

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Adjusting the setting Function
The pressure differential between cut-in and cut-
out pressure is to be decreased.
➤ Turn the adjusting screw
4
anticlockwise (in
the - direction).
Tab. 29 Changing the pressure switch setting
6. Replace the cover.
The motor starting frequency is to be reduced?
➤ Increase the difference between cut-in and cut-out pressure.
➤ Add a larger air receiver downstream to increase buffer capacity.
Further information The duty cycle of the machine is given in chapter 2.12.
See table 11 for the motor starting frequency.
7.7 Setting the pressure regulator
The working pressure of a compressor fluctuates according to the limits set on the pressure switch.
The pressure regulator unit reduces this fluctuation to the required pressure and holds it constant.
A pressure adjustment is possible to suit individual operating conditions.
Pressure setting can only be adjusted when a pressure switch is fitted and under pressure.
Maximum range of adjustment: 0.5 bar – 20 bar
Precondition The machine is isolated from the air consumers.
Fig. 6 Setting the pressure regulator
1
Adjusting knob
2
Locking collar
3
Pressure gauge (working pressure)
4
Compressed air outlet
1. Start the machine and run it up to cut-out pressure.
2. To relieve the filter regulator, turn the adjusting knob anticlockwise until no more resistance is
felt.
3. Turn the adjusting knob clockwise until the pressure gauge reads the required working pres‐
sure.
4. Tighten the locknut to fix the adjusting knob in position.
7 Initial Start-up
7.7 Setting the pressure regulator
30
Service Manual Reciprocating compressor
Premium compact W
No.: 9_9418 20E