HARDI-EVRARD ALPHA PLUS 4100 - Gauge and Pendulum Lock Troubleshooting; Pressure Gauge Faults

ALPHA PLUS HARDI NOVA
FF AA UU LL TT SS II NN OO PP EE RR AA TT II OO NN
CHAPTER
66-
12
False reading
Does not rest to zero
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- Check pressure gauge and circuit- Bleed the circuit
- Bleed the circuit with clean water
- Replace by a new pressure gauge if necessary
0
2
4
6
8
12
16
HARDI
284831
!
PROBLEMS
SOLUTIONS
REMOVAL
REASSEMBLY
66-
33
-
1111
PPRREESSSSUURREE GGAAUUGGEE
In case of power failure the pendulum device can be loc-
ked as follows :
1. Unscrew nut
AA
2. Remove O’ring
BB
and coil
CC
3. Screw complet
ely nut
AA
to lock the pendulum.
C
A
B
A
LOCK position
66-
33
-
1122
MMAANNUUAALL OOPPEERRAATTIIOONN OOFF PPEENNDDUULLUUMM LLOOCCKK