GB-6
D
GB
F
NL
I
E
JSAV 50 – 100
CAUTION
Please observe the following to ensure that the
JSAV is not damaged during resetting:
– Turn the reset lever gently and do not go further
than specified.
1
Remove the breather screw plug.
2
Press the reset lever and turn through 10° until
resistance can be felt.
~10°
Hold the reset lever in this position until the lever
can be easily turned further following pressure
equalization.
4
Press and turn the reset lever until the valve disc
opens and clicks into place.
klack
5
▷
▷
The pin in the measuring unit must be at the top
after the valve disc has clicked into place.
6
Screw in the breather screw plug.
▷
▷
The JSAV is ready for operation.
Replacing the measuring unit
▷
▷
The measuring unit has to be replaced if the JSAV
no longer opens or can no longer be reset.
▷
▷
We recommend cleaning the O-ring seats and
lightly greasing the O-rings with Klüber Nontrop
ZB91 DIN before installation.
1
Depressurize the system.
JSAV 25
▷
▷
The measuring unit is supplied with the valve disc
assembled. 1 O-ring and 4 screws are enclosed.
2
Detach the impulse line from the JSAV.
4
5
3
▷
▷
Ensure that the O-ring is fitted in the new measur-
ing unit, see Figure
5
.
6
Follow the reverse procedure when reassembling.
7
Connect the impulse line to the JSAV.
8
Check tightness and function, see [Tightness
test – p. 4] and [Checking the function – p. 4].
JSAV 40
▷
▷
The measuring unit is supplied with the valve disc
assembled. 1 O-ring and 4 screws are enclosed.
2
Detach the impulse line from the JSAV.
4
5
6
3
8
9
7
▷
▷
Ensure that the O-ring is fitted in the new measur-
ing unit, see Figure
9
.
10
Replace the O-ring on the housing. The O-ring is
part of the seal set.
▷
▷
The seal set is available separately as a spare part.
11
Follow the reverse procedure when reassembling.
12
Connect the impulse line to the JSAV.
1
Check tightness and function, see [Tightness
test – p. 4] and [Checking the function – p. 4].
JSAV 50 – 100
▷
▷
The measuring unit is supplied with 1 O-ring and
4 screws.
2
Ensure that the JSAV is closed.
Remove the breather screw plug.
▷
▷
The pin in the measuring unit must be at the bot-
tom when the JSAV is closed.
▷
▷
If the JSAV is open, apply pressure to the impulse
line to close the valve.
