Mounting And Start-Up; Lever And Pin Position - Samson 3725 Mounting And Operating Instructions

Mounting and start-up

5 Mounting and start-up
NOTICE
!
Risk of malfunction due to incorrect sequence
of mounting, installation, and start-up.
Observe the prescribed sequence.
Î Sequence to be kept on mounting, install-
ing, and starting up the positioner:
1. Remove the protective caps from the
pneumatic connections.
2. Mount the positioner on the valve.
Î Section 5.2 onwards
3. Perform pneumatic installation.
Î Section 5.6 onwards
4. Perform electrical installation.
Î Section 5.8 onwards
5. Perform the settings.
Î Section 7 onwards
The following applies when mounting the
positioner:
Î Do not mount the positioner with the
vent opening (Fig. 4) facing upward.
Î Do not seal the vent opening.
26

5.1 Lever and pin position

The positioner is adapted to the actuator and
to the rated travel by the lever on the back of
the positioner and the pin inserted into the
lever.
The travel tables on page 20 show the as-
signment between the required lever and pin
position.
The positioner is equipped with the M lever
(pin position 35) as standard (see Fig. 3).
Removing the lever and changing the pin
position:
NOTICE
!
Incorrect removal of the lever will damage
the positioner.
Only remove the lever when it is positioned
at the bottom mechanical stop.
1. Move the lever to the bottom mechanical
stop (see Fig. 4) and hold it in place. Un-
do and remove the nut using a wrench
(width across flats SW 10).
2. Remove the lever from the shaft.
3. Insert pin in position as listed in the
travel table.
4. Fasten the lever.
EB 8394 EN