Mounting The Combi Switchbox On Linear Actuators - GEM 4242 Operating Instructions Manual

▶ For some valves (e.g. GEMÜ 650 and GEMÜ 687) it is necessary to fit a pressure disc between the threaded adapter and
the actuator head. This is included in the required 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 adapter
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 included) into the corresponding groove
on the adapter 6.

10.2 Mounting the combi switchbox 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.
www.gemu-group.com
NOTICE
If included: Push the pressure disc 9 over the adapter 6 and in-
sert the O-ring 10 in the intended groove of the pressure disc.
2
A
1
3
2
19 / 40
10 Assembly and installation
GEMÜ 4242
IO-Link