Installing The Electrical Position Indicator On Linear Actuators - GEM 1242 Operating Instructions Manual

3. Tighten the operat- 4. Affix the O-ring 5 and the adapter 6.
ing
bush 3 by turning it
clockwise.
7
5. Attach the flange 6. Screw the flange plate on tight using
plate screws 8 (1–1.5 Nm).
7
• Push in the spindle until it pushes against the spring and
then slowly release the pressure on the spring.
▶ For some valves (e.g. GEMÜ 650 and GEMÜ 687) it is ne-
cessary to fit a pressure disc between the threaded ad-
apter and the actuator head. This is included in the re-
quired mounting kits, sometimes with an additional O-ring
(only GEMÜ 650 with normally open and double-acting
control function – code 2+3).
▶ If the pressure disc does not have a groove for a seal, this
will already be inserted in the groove provided at the ad-
apter opening of the actuator head (e.g. GEMÜ 687 with
normally open control function – code 2).
6
11
9
10
Insert the O-ring 11 (if in-
cluded)
into the corresponding groove
on the adapter 6.
www.gemu-group.com
8
NOTICE
If included: Push the pressure
disc 9 over the adapter 6 and
insert the O-ring 10 in the in-
tended groove of the pressure
disc.
10.2 Installing the electrical position indicator on linear
actuators
10.2.1 Preparations for mounting to the valve
1. Move the actuator A into zero position (actuator vented).
2. Remove optical position indicator 2 and / or protective cap
1 from the actuator top.
1
10.2.2 Assembling the adapter (linear actuator)
With some mounting kits it is necessary to install an adapter
as well. This adapter is enclosed with the required mounting
kits. Valves with a normally open and double acting control
function (code 2+3) also include additional O-rings (1+2).
1. Move the actuator to the closed position.
2. Place O-rings 1 and 2 into adapter 3.
3. Screw adapter 3 into the actuator opening as far as it will
go and tighten.
15 / 41
10 Assembly and installation
2
A
1
3
2
GEMÜ 1242