
A L P H A 2 5 0 0
F A U L T S I N O P E R A T I O N
CHAPTER
7- 15
677824
09/01
False reading
Does not rest to zero
N.B. : The operator may be splashed with liquid unexpec-
tedly
- Check pressure gauge and circuit- Bleed the circuit
- Remove the pipe (A)
- Bleed the circuit with clean water
- Remove the top plug (B) to reposition the needle at zero.
0
2
4 6 8
12
16
HARDI
284831
A
!
B
Ets EVRARD
HELIFLU 16 EL
N
°
K 0.0
A
C
B
PROBLEMS
SOLUTIONS
A
B
C
D
2,5 à
à 3 mm
REMOVAL
REASSEMBLY
7-
3
-
9
WHEEL SENSOR
7-
3
-
10 HELIFLUX FLOWMETER
7-
3
-
11
PRESSURE GAUGE
- Check sensor / disc distance, 3mm maximum
- Check for disc distortion.
- Check for wheel distortion (wheel bearing)
- Position correctly the sensor in the flow meter (A)
- Check electrical plugging (B)
- Check the bushes (C)