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Replacing the valve disc
▷ The valve disc has to be replaced if the JSAV is
leaking or has been damaged during resetting.
▷ We recommend cleaning the O-ring seats and
lightly greasing the O-rings with Klüber Nontrop
ZB91 DIN before installation.
1 Depressurize the system.
▷ We also recommend replacing the entire seal set
and the bellows when replacing the valve disc.
▷ The seal set with bellows is available separately
as a spare part.
▷ Ensure that the JSAV is closed.
▷ The pin in the measuring unit must be at the
bottom when the JSAV is closed.
▷ If the JSAV is open, apply pressure to the impulse
line to close the valve.
2 Detach the impulse line from the JSAV.
3
4
6
Press the
reset lever and
turn until the
valve disc is
on top.
WARNING
Risk of injury!
–
The spring wire is under high stress.
8
9
12
15
5
17 Follow the reverse procedure when reassembling
▷ To ensure that the valve disc is pushed onto
7
18 Connect the impulse line.
19 Check tightness and function, see page 3
GB-6
Press the
spring wire
into the notch
in the plate.
10
13
Insert new
O-rings from
the seal set.
using the new valve disc and the O-rings from
the seal set.
the seat by the spring, the spring wire must be
released from the notch in the plate and rest
against the housing wall.
(Tightness test) and page 4 (Checking the
function).
11
14
16
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