Instal
la
tion
and
Op
er
at
ing M
a
nual
/
Ver
si
o
n 1.
5/
91800271810, Protection
Class
EN
/ Pr
ot
ecti
on
C
lass
0: Off
en
(p
u
b
lic
)/ 2
0
14
-09-
03
38
WSR-D80112-S
Maintenance, Servicing and Inspection
8.5 Replacing the control magnet
CAUTION
Before replacing the control magnet ensure that the oil supply to the way
valve has been de-pressurized and the power supply been disconnected and
secured against accidental switching on while working.
This work may only be performed by qualified staff, provided they meet the
relevant criteria stated in Chapter 1.5.
NOTICE
Before re-installing the control magnet, clean the sealing and flange surfaces
so that they are free from dirt and other residues.
8.5.1 Disassembly
4. De-pressurize the pressuer supply to the way valve.
5. Disconnect the power supply to the way valve.
6. Unscrew the four screws of the junction box and remove the cover (See Fig. 7).
7. Disconnect the corresponding cores for the power supply of the control magnet as
described in the electric wiring diagram, Chapter 10. By loosening the EMC cable
gland, the cable can be removed from the junction box.
8. Loosen the four M6 hex. nuts and unscrew same from the threaded rods (Fig. 8).
Ensure that the four threaded rods remain screwed in the control housing.
Otherwise the control magnet may fall down.
9. Now remove the control magnet from the control housing and the four threaded
rods (Fig. 9).
Fig. 7: Illustration showing opening of the junction box
Summary of Contents for 22000106810
Page 46: ......