Series KSE/F, KSE-C/F
Page
18
9530-001-en
Revision 19
TM 9549
Edition 11/2018
♦
Screw on lifting cap
535
and tighten.
♦
Insert lifting lever
238
.
♦
Mount locking plate
539
.
♦
Have valve lead-sealed.
♦
The data specified in the test certificates are to be
observed.
9.5 Important notes on disman-
tling / installation
First relieve plug
204
and lift it off the seat.
♦
The seat and plug could otherwise be destroyed.
Read the precise instructions in
Section 9.6
,
9.7
and
9.8
..
♦
Then undo the screws between the body
100
and
the inlet nozzle
122
or between the bonnet
513
and body
100
.
♦
Always replace the seat and plug
pairwise
and
always rework them
completely
.
♦
Reworking of the seat and plug requires special-
ised knowledge of the material as well as special
lapping wheels.
♦
It is therefore recommended to have this work
carried out by the manufacturer.
♦
After dismantling, check all parts for wear and
damage.
♦
Observe sectional drawings in
Section 10
.
9.6 Replacement of components
9.6.1 Dismantling of the plug
♦
Undo locking plate
539
, dismantle lifting lever
238
and unscrew the lifting cap
535
.
♦
Mark the position of the stem nut
534
.
♦
Unscrew the prevailing torque type hexagon nut
929/1
and stem nut
534
off the stem
802
.
♦
When undoing or tightening 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 that the insert sleeve
308
will be
screwed out of the bellows
206
and the
folds or the spring-type pin
939/1
will be
damaged!
♦
Mount a suitable distance sleeve (not included in
the scope of delivery) over the stem
802
.
♦
Screw the stem nut
534
against the distance
sleeve. The plug
204
is lifted off the seat
205
and
the closing force becomes ineffective.
♦
Loosen the bolts
901/1
,
936/1
,
936/2
and
920/2
(in
the case of KSE/F and KSE-C/F 100/150
902/2
,
934/1
,
936/1
and
920/2
) from body
100
and spring
bonnet
513
and lift the bonnet with internals com-
pletely off.
♦
Grip the bellows
206
in the reinforced section just
above the lifting aid
237
. Unscrew the lifting aid off
the bellows and remove the plug
204
.
9.6.2 Dismantling of the seat
♦
Remove spring bonnet
513
from the body
100
.
♦
See
Section 9.6.1
.
♦
Dismantle inlet nozzle
122
from the body
100
and
remove the seat
205
.
9.6.3 Installation of the seat
♦
Insert the new or reworked seat
205
at the bottom
into the corresponding centring of the body
100
.
♦
Then insert the inlet nozzle
122
into the centring of
the body
100
.
The components must be smooth running, i.e. can
be centred without any constraining forces.
If necessary, the inlet nozzle is to be turned
through 90°.
♦
First tighten the attachment nuts
920/1
hand-tight
and then with a torque wrench evenly and in
diametrically opposite sequence.
It is imperative to observe the prescribed
torques for the connection body / inlet
nozzle! See
Section 9.3
.
9.6.4 Installation of the plug
♦
All parts are to be thoroughly cleaned before
assembly.
♦
Centre the new or reworked plug
204
in the lifting
aid
237
and screw completely onto the thread of
the bellows hand-tight.
Hold the bellows 206 at
the reinforced section.
♦
Undo the hex. socket screws
914/1
. Centre the
spring bonnet
513
with internals on the body
100
.
Ensure that there is metallic contact between the
body and the spring bonnet. Then tighten the
screws
901/1
,
936/1
,
936/2
and
920/2
(on KSE/F
and KSE-C/F 100/150
902/2
,
934/1
,
936/1
and
920/2
).
