5 Maintenance
Study the instructions carefully.
The items refer to the parts list and service kits section.
Step 1
Actuator for the Shut-Off valves can not be reversed as it
only is possible to operate in NC position.
TD461-743_1
Actuator for the Change-over valves can be reversed from
NC to NO and from NO to NC.
(see section 5.7 Dismantling of (NC) maintainable actuator
and 5.8 Dismantling of change-over (NO) maintainable
actuator
TD461-743_1
TD461-753_1
Step 2
3135302191
Two step guiding tool
Reversing maintable actuator operation can be
done by reversing parts inside the actuator
It is necessary to use a special “SSV Two step
guide tool” (see Step 3) and a “turning tool” (Item
no. 3135302191) for mounting the guide (54).
1. Fit the “SSV Two step guide tool” in a vice.
2. Fit O-ring (59) in Guide (54) and by hand
screw it in cylinder (1).
3. Fit “turning tool” on top of cylinder (1) and
tighten (Torque 15 - 20 Nm).
TD 461-648_1
39
