12
6 DA 70 en
4.5
Removal & mounting of the handwheel
bundle
See Fig. 6 and 7.
Check the current valve position should be 'AUTO'
position.
Turn over the locking device to be released the
handwheel.
Operate the handwheel to be open or close position
--- Manual mode.
Hold the handwheel bundle by lifting device.
Remove the hexagon screws (40d) and spring wash-
ers (40f ) from the yoke side
Lift up the handwheel bundle using by lifting
devices from the yoke side.
Repair or replace the parts if necessary.
Remounting: follow reversed procedures from the
last step through first step.
Return the locking device to be locked with the
'AUTO' position --- Auto mode.
Table 6.
VD Tightening torques for screws
Note :
1. Torque value tolerance : ± 10 %
2. Torques are norminal values.
CAUTION:
Lift the handwheel bundle using by lifting devices,
don`t lift by only hand for the safety.
NOTE:
We recommend that to replace the bearing (57) with Mob
no. 2 grease or equal when the annual shutdown.
CAUTION:
Keep your fingers, tools or other items out of the
housing while operating the actuator with the cover
open!
PN
Description
Screw Size
Q`ty
VD Required Torques for Each Size
#25
#29
#37
#48
#55
N.m
Lbf.ft
N.m
Lbf.ft
N.m
Lbf.ft
N.m
Lbf.ft
N.m
Lbf.ft
8
"Hexagon Screw
(for #10, Lower Case)"
M12 x 1.75P
4
34
25
34
25
34
25
M16 x 2.0P
6
65
48
65
48
21
"Lifting Eye Nut
(for #10 & 20, Cases)"
M8 x 1.25P
2
26
19
26
19
24
18
M12 x 1.75P
2
24
18
32
24
24a, 25
"Hexagon Nut
(for #10 & 20, Cases)"
M8 x 1.25P
10
26
19
M8 x 1.25P
14
26
19
M8 x 1.25P
18
24
18
M12 x 1.75P
18
24
18
M12 x 1.75P
22
32
24
28
"Hexagon Nut
(for #26, Clamp)"
M6 x 1.0P
4
22
16
22
16
22
16
M10 x 1.5P
4
26
19
26
19
33
"Stem Nut
(for #18, Top Stem)"
M16X2.0P
1
65
48
65
48
65
48
M24X1.5P
1
180
133
180
133
for VD Handwheel Screws
40D
Hexagon Screw
M8 x 1.25P
4
26
19
26
19
26
19
M14 x 2.0P
4
50
37
50
37
40S
Hexagon Screw
M8 x 1.25P
2
26
19
26
19
26
19
M10 x 1.5P
2
26
19
26
19
40V
Hexagon Screw
M8 x 1.25P
2
26
19
26
19
26
19
M10 x 1.5P
2
26
19
26
19
50A
Round Head Screw
M4 x 0.7P
6
8
6
8
6
8
6
8
6
8
6
54A
Bearing Flange Screw
M12 x 1.75P
2
34
25
34
25
M16 x 2.0P
2
65
48
M22 x 2.5P
2
120
88
120
88
