Series KSE/F, KSE-C/F
Page
19
9530-001-en
Revision 19
TM 9549
Edition 11/2018
♦
Tighten the hex. socket screws
914/1
for the
bellows seal evenly in line with the tightening
torques
♦
Undo stem nut
534
.
♦
Remove distance sleeve.
♦
Screw stem nut
534
onto the stem
802
up to the
marking. Then counter with the self-locking hex.
nut
929/1
.
♦
When screwing on and countering the prevailing
torque type hexagon nut
929/1
, carefully hold the
spindle tight with pliers to prevent it from turning.
Do not turn the entire stem 802!
There
is a risk of the folds in the bellows
206
or
the spring-type pin
939/1
being damaged!
♦
Screw on lifting cap
535
and mount lifting lever
238
with locking plate
539
.
9.6.5 Installation of the thrust ring
Make sure that the O-ring
400/1
is positioned
completely inside the groove of the pressure ring
124
so that it is not damaged when the thrust ring is
inserted into the thrust flange
117
.
If the O-ring
400/1
has been damaged by improper
assembly, water may enter from outside into the valve
mechanism and the bellows and cause corrosion
damage.
A defective O-ring must be replaced before the valve
is installed in the plant.
9.7 Dismantling
KSE/F 50/80, 80/100, 100/150
KSE-C/F 80/100, 100/150
Caution
: During dismantling of the entire
KSE/F, the nuts of the fitting between the
body and the inlet nozzle must under no
circumstances be undone
–
Risk of
accident!
The springs must firstly be completely
relieved!
9.7.1 Dismantling of the entire upper
section / Removal of the seat and
plug
♦
To remove the seat and plug undamaged, the plug
204
must be lifted off the seat
205
.
♦
Unscrew the cap nut
927/1
from the lifting cap
535
and remove the cap.
♦
Unscrew the self-locking hex. nut
929/1
and stem
nut
534
off the stem
802
.
♦
When loosening and unscrewing the prevailing
torque type hexagon nut
929/1
, carefully hold the
spindle tight with pliers to prevent it from turning.
Do not turn the entire stem 802!
There
is a risk of the folds in the bellows
206
or
the spring-type pin
939/1
being damaged!
Lifting plug off the seat
♦
Mount a spacer sleeve (approx. 35 mm long) on
the end of the spindle
802
and screw on a nut and
counter it with another hex. nut. (Not included in
scope of delivery).
♦
Grease the end surfaces of the spacer sleeve well
so that these surfaces cannot "seize" when raising
the adjusting screw
538
.
♦
The spacer sleeve may also be replaced by hex.
nuts. See
Fig. 18.
Fig. 18
♦
In order to lift the plug
204
off the seat
205
, raise
the entire spindle.
♦
Undo adjusting screw
538
and turn it out of the
spring bonnet
513
.
♦
When undoing the adjusting screw
538
, hold the
spindle with a wrench on the counter nut so that
the bellows
206
or the spring-type pin
939/1
are
not damaged. See
Fig. 19.
Fig. 19
♦
Unscrew hex. socket screw
914/1
off the pressure
ring
124
.
♦
Clean and grease the two threaded rods (approx.
150 mm) long / 180° offset).
♦
Undo hex. nuts
920/2
to attach the spring bonnet
513
and thrust flange
117
.
♦
Remove complete upper section.
