Adjustment Of By-Pass System - Nilfisk-ALTO Neptune PE Service Manual

Fig.G.09: Pressure gauge
Dismount the test plug in the by-pass housing
and mount a pressure gauge instead.
Fig.G.11: Safety valve
Close the safety valve completely.
NEPTUNE PE-DE_en_Ver.1.0_October 2010
Adjustment / Test
Jetwash Direct ltd

Adjustment of by-pass system.

Fig.G.10: Test tap
Connect a test tap (A), hose and pressure
gun to the outlet of the machine.
Fig.G.12: Pressure bolt
Adjust the test tap (A) and the pressure bolt
(B) so it couples 20-30 bars higher than
working pressure, when the pressure gun is
closed— CUT OFF PRESSURE. After the
cut off pressure is reached the machine
runs in by-pass untill the pressure gun is
opened.
The working pressure is stated in the tech-
nical data sheets chapter B.
G
NA5 pump
A
B
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