31. Insert new O-ring 44 in actuator top 10
(only with actuator size 1).
32. Lubricate new piston sleeve 13 using
appropriate lubricant* and push it into
actuator top 10 (pay attention to the
installation position).
* GEMÜ recommends the lubricant
"Dowcorning 111 Molycote".
33. Insert new O-ring 24 into piston
sleeve 13.
34. Mount actuator top 10 (see chapter 7.1
"Installation of actuator top").
35. Loosen the retaining nut 19 on the
spindle 2 (hold the spindle 2 in place
using an appropriate tool that will not
damage the spindle surface).
36. Remove retaining nut 19 and seat 14.
37. Clean all parts, do not scratch or
damage the parts during cleaning.
38. Insert new seat 14 into valve plug 15.
39. Apply appropriate thread locking
compound on the thread of valve
plug 15.
40. Position retaining nut 19 on spindle 2
(hold spindle 2 in place using an
appropriate tool that will not damage the
spindle surface) and tighten it.
41. Insert new gasket 4 in valve body 1.
42. Mount actuator A (see chapter 7.2
"Actuator mounting on the valve body").
7
Installation
7.1
Installation of actuator top
Check actuator top 10 and
+
connecting bolts 23 for potential
damage. If they are heavily worn,
the actuator top 10 and connecting
bolts 23 must be replaced (use only
genuine parts from GEMÜ).
1. Place actuator top 10 onto actuator
base 25 and centre it.
2. Ensure that the hole patterns of the
actuator top 10 and actuator base 25 are
aligned.
3. Bolt the actuator top 10 and actuator
base 25 together using the connecting
bolts 23, working diagonally (for torques,
see table).
Actuator size
0, 1, 3, 4
2
19 / 24
10
25
10
25
23
Torques [Nm]
3.5
8.0
532 SKV