D
29
Function
NEPTUNE 5 FA_EN_Ver.2.0_25/11
Machine is started and the gun ”J” with correct lance/nozzle is open -
Machine runs in working pressure ”K”:
The water is pressed from the pump outlet ”A” into the by-pass housing ”C”.
The water runs through the bottom of by-pass housing ”C” and directely to the outlet ”I”.
Due to the water pressure the by-pass piston ”B” is pressed up and the seat ”E” is closed.
Machine is started and the gun is closed - By-pass pressure:
When the gun ”J” closes, the pressure inside the by-pass housing equalizes and the by-pass piston
”B” is pressed down by the tension of it’s spring. The seat ”E” in the top of by-pass piston opens.
The water runs from the pump outlet ”A” into the by-pass housing ”C”. Due to the closed gun ”J” and
the opening in the by-pass seat ”E”, the water runs back into the suction side of the pump through
the valve ”D”.
A
B
I
C
D
J
E
F
G
H
K
A
B
I
C
D
J
E
F
G
H
K
Fig.D.5: Working pressure
Fig.D.6: By-pass pressure
Summary of Contents for NEPTUNE 5 FA
Page 1: ...Service Manual NEPTUNE 5 FA NEPTUNE 5 FA_EN_Ver 2 0_25 11 ...
Page 54: ...H Wiring diagrams NEPTUNE 5 FA_EN_Ver 2 0_25 11 54 ...
Page 55: ...H Wiring diagrams NEPTUNE 5 FA_EN_Ver 2 0_25 11 55 ...
Page 56: ...H Wiring diagrams NEPTUNE 5 FA_EN_Ver 2 0_25 11 56 ...
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