Samson TROVIS 3730-1, Translation Of Original Instructions

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5-2 EB 8484-1 EN
Installation
5.2 Preparation for installation
Before mounting, make sure the following
conditions are met:
− The positioner is not damaged.
− The air supply is not yet connected to the
positioner.
− The current is not yet connected to the
positioner.
Proceed as follows:
Î
Lay out the necessary material and tools
to have them ready during mounting.
Î
Adjust correct lever and pin position (see
section 5.4).
Î
Remove the protective caps from the
pneumatic connections.
5.3 Turning the positioner shaft
To turn or hold the positioner shaft in posi-
tion, turn or hold the actual shaft lock by
hand.
Î
Do not use the locking screw to turn the
positioner shaft knob. Only turn the rota-
ry knob by hand (see Fig. 5-5).
5.4 Adjusting the lever and pin
position
The M lever is included in the scope of deliv-
ery.
S, L, XL levers are available as accessories
(see Table 5-7). The XXL lever is available on
request.
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 5-4 show the
maximum adjustment range at the position-
er. The travel that can be implemented at the
valve is additionally restricted by the selected
fail-safe position and the required compres-
sion of the actuator springs.
The positioner is equipped with the M lever
(pin position 35) as standard (see Fig. 5-3).
If a pin position other than position 35 with
the standard M lever is required or an L or
XL lever size is required, proceed as follows
(see Fig. 5-4):
1. Fasten the follower pin (2) in the as-
signed lever hole (pin position as speci-
fied in the travel tables on page 5-4).
Only use the longer follower pin includ-
ed in the mounting kit.
2. Place the lever (1) on the shaft of the po-
sitioner and fasten it tight using the disk
spring (1.2) and nut (1.1).
Note