KSB ECOLINE GT 40, Руководство по эксплуатации

Страница: 26 / 38

7 Servicing/Maintenance
26 of 38
ECOLINE GT 40
7367.8/06-EN
7.2.2 Tools required
▪ Packing extractor
▪ If required, assembly sleeve (split sleeve design) with the following
characteristics:
– Inside diameter of sleeve equals stem di 0.5 mm.
– Outside diameter of sleeve equals outside diameter of gland packing
c 0.5 mm.
– Height of sleeve equals height of gland packing chamber as a minimum.
7.2.3 Dismantling the valve
7.2.3.1 General information/Safety regulations
WARNING
Hot surface
Risk of injury!
▷ Allow the valve to cool down to ambient temperature.
WARNING
Unqualified personnel performing work on the valve
Risk of injury!
▷ Always have repair work and maintenance work performed by specially trained,
qualified personnel.
Always observe the safety instructions and information. ( ð Section 7, Page 25)
In the event of damage you can always contact KSB Service.
7.2.3.2 Preparing the valve
1. Move the valve to the open position.
2. For valves with actuators, interrupt energy supply and make sure it cannot be
switched on again unintentionally.
3. Depressurise and drain the valve.
7.2.3.3 Removing the graphite gland packing
CAUTION
Damage to the stem!
Leakage at the valve!
▷
Work very carefully to avoid damage during assembly/dismantling.
ü The notes and steps stated in ( ð Section 7.2.3.1, Page 26) to
(
ð
Section 7.2.3.2, Page 26) have been observed or carried out.
1. Undo and remove stuffing box nuts 920.2.
2. Take off gland follower 452.
3. Remove gland bush 456.
4. Using the packing extractor, remove packing rings 461.1 and packing end rings
461.2.