242
ASX 176
EN
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR
|
TROUBLESHOOTING
|
REV. 00
10.4.4 - TROUBLESHOOTING OF THE SSX/176 SLAM-SHUT VALVE AND LINE OFF 2.0 DEVICE
Failure
Device
Possible causes
Service
Incorrect tripping
pressure
PRESSURE SWITCH MOD.
100
Incorrect calibration of maxi-
mum or minimum spring
Repeat calibration by ad-
justing the ring nuts
Leverages with friction
Clean and lubricate levers;
replace pressure switch if
necessary
Springs (11, 17) collapsed
Replace
Springs (11, 17) out of level
Reposition
Impossible to reset
SSX/176
Plug (9) locked due to friction
Clean and lubricate
O-ring friction (48)
Lubricate and replace if
necessary
I/DWR friction (52)
Lubricate and replace if
necessary
Breakage of the diaphragm
(50)
Replace
Bypass not performed
Press the HP2/2 button
Obstructed vents
Clean
PRESSURE SWITCHES
MOD. 100
Incorrect calibration of maxi-
mum and/or minimum spring
Carry out the calibration
again by adjusting the ring
nuts
Downstream pressure not con-
sistent with maximum and/or
minimum pressure slam-shut
device calibration
Replace
Leverages with friction
Clean and lubricate levers;
replace pressure switch if
necessary
Diaphragm (43) breakage if
min. spring is installed
Replace
Manual release button locked
Clean and lubricate
Содержание ASX 176
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