WIKA CPB3800 Betriebsanleitung Seite 42

8. Faults
Faults
Equipment provides
GB
pressure but pressure
decays when valves A
and B are operated.
Equipment provides
pressure but pressure
decays to lower value
then remains steady.
Pressure balance
screw press becomes
very stiff to operate
when pressure
balance is being
used in range below
140 bar (2,000 lb/in²)
Pressure balance
screw press becomes
very stiff to operate
when pressure balance
is being used in
range above 140 bar
(2,000 lb/in²)
42
Causes
Incorrect operating procedure
being used.
If unable to locate a cause.
Insufficient liquid in pressure bal-
ance.
Air in the system
If unable to locate a cause.
Internal damage
Incorrect operating procedure
being used.
If unable to locate a cause.
Internal damage
Incorrect operating procedure
being used.
If unable to locate a cause.
Measures
Ensure that correct operating
procedure is being followed (see
chapter 6.6).
Return pressure balance to DH-
Budenberg/WIKA for investigation.
Check liquid level in reservoir. Fill
reservoir with correct liquid as
necessary (see chapter 6.5.1).
Prefill component under test with
appropriate liquid. If necessary re-
fill pressure balance with appropri-
ate liquid.
Return pressure balance to DH-
Budenberg/WIKA for investigation.
Return pressure balance to DH-
Budenberg/WIKA for investigation.
Ensure that correct operating
procedure is being followed (see
chapter 6.6).
Return pressure balance to DH-
Budenberg/WIKA for investigation.
Return pressure balance to DH-
Budenberg/WIKA for investigation.
Ensure that correct operating
procedure is being followed (see
chapter 6.6).
Return pressure balance to DH-
Budenberg/WIKA for investigation.
WIKA operating instructions model CPB3800