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16. Insert new upper sealing washer
22
.
17. Insert upper membrane plate
6
-
observe correct installation position
(see drawing chapter 5).
18. Insert washer
9
.
19. Tighten new hexagon nut
21
with an
open-end wrench SW13 with 16 Nm.
20. Remove compression spring
32
from
actuator base
16
.
21. Remove bush
17
.
CAUTION
Damage to the bush guide in the
actuator base 16 when using
unsuitable tools!
®
Damaged bush guide can no
longer ful
fi
l its function.
G
Press out bush
17
from actuator
base
16
upwards with an
appropriate tool that will not
damage the bush guide.
22. Press in new bush
17
.
CAUTION
Damage to the bush 17 when
using unsuitable tools!
®
Damaged bush
17
can no longer
ful
fi
l its function.
G
Press bush
17
from above
into actuator base
16
with an
appropriate tool that will not
damage bush
17
.
23. Insert new compression spring
32
into
actuator base
16
.
24. Lubricate actuator spindle
15
(GEMÜ recommends MOLYCOTE 111
COMPOUND).
25. Insert the actuator membrane assembly
manually into actuator base
16
from
above through bush
17
and push
it down. The actuator membrane
assembly comprises actuator
spindle
15
including dowel pin
30
and
adapter
31
, hexagon nut
21
, washer
9
,
upper membrane plate
6
, upper sealing
washer
22
, actuator membrane
14
,
lower sealing washer
22
, distance
piece
28
(only for diaphragm sizes 40
and 50), O-ring
27
(only for diaphragm
sizes 40 and 50) and lower membrane
plate
6
.
26. Take care that the hole patterns of
actuator membrane
14
and actuator
base
16
are aligned.
27. Assemble the actuator as described in
chapter 5.3, points 1-11.
5.3 Assembly of actuator
1. Put on actuator top
10
, take care that
the hole patterns of actuator top
10
,
actuator membrane
14
and actuator
base
16
are aligned.
2. Clamp actuator in a press.
CAUTION
Applied pressure too high!
®
Risk of breakage of actuator
top
10
!
G
Only use minimum required
pressure.
3. Diaphragm sizes 25 and 40:
Bolt together diagonally actuator top
10
and actuator base
16
with bolts
12
.
Diaphragm size 50:
Bolt together diagonally actuator top
10
and actuator base
16
with bolts
12
and
nuts
35
.
Important:
The bolts
12
between actuator
top
10
and actuator base
16
are always inserted from
above.
Diaphragm size
Tightening torque
25
6 Nm
40
15 Nm
50
21 Nm
4. Slowly release the press.
5. Put protective caps
29
onto bolts
12
.
6. Diaphragm size 50:
Put protective caps
34
onto nuts
35
.
7. Reinsert loose compressor
3
.
8. Lubricate new O-ring
44
(GEMÜ recommends MOLYCOTE 111
COMPOUND).
Summary of Contents for 687
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