GEM 567 BioStar control Operating Instructions Manual page 45

13.2.2 Mounting the regulating cone
6
9
5
2
20
3
If when removing the regulating cone 3 the plug diaphragm 2,
the adjustable insert 5 and the spring washers 9 are loosened,
these must be placed back in the correct position before
mounting the regulating cone 3!
4
3
1. Mount the O-ring 4 on the regulating cone 3.
20
3
2. Wet the thread of the regulating cone 3 with suitable
thread locking compound (e.g. WEICONLOCK AN 301-65).
3. Screw the regulating cone 3 into the support ring 20 until it
is hand tight.
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20
3
4. Hold the support ring 20 in place and secure the regulating
cone 3 using the assembly tool and hand-tighten it.
ð Do not damage the regulating cone surface in the pro-
cess.
6
11
2
20
3
5. Screw the support ring 20 to the valve spindle 6 and hand-
tighten it.
ð Where necessary, wet the thread of the valve spindle 6
with suitable thread locking compound (e.g. WEICON-
LOCK AN 301-65).
6
11
2
20
4
3
6. Position a WAF 16 open-end wrench on the regulating
cone 3. Simultaneously, position a WAF 8 open-end
wrench on the wrench surface of the valve spindle 6. By
counterholding both open-end wrenches, carefully bolt the
support ring 20 with the regulating cone 3 to the valve
spindle 6 (tightening torque: 7-9 Nm).
7. Place the distance piece 11 onto the valve body 1.
8. Place washers 17 and cap nuts 18 on stud bolts 16 and
position by hand.
9. Tighten cap nuts 18 diagonally (tightening torque: 16–
20 Nm).
45 / 54
13 Inspection and maintenance
GEMÜ 567 BioStar control