© Munters AB, 2013
29
2
4
3
9
6
5
1
8
7
fig. 18
2. remove the side cover plates
(see n.1)
and break
steel stop collars
(see n.9)
on central bearing
assembly with pliers;
3. unthread two tie-rod with holes
(see n.8)
and
unscrew M6 bolts
(see n.2)
and nuts
(see n.3)
which fix shutter closing spring;
4. pull off the shutter blades
(see n.7)
from their slot
and unhook the damage shutter bearing assembly
(see n.4,5,6)
;
5. insert the new shutter bearing assembly;
6. put back the shutter blades and fix the closing
springs in their position;
7. fit the cover side plates back
(see n.1)
.
8.7 Fan bearing lubrication
Bearings are properly sized, with double sealed protection (2RS) and lubricated for life, therefore they do not
require any additional lubrication.
8.8 Replacement of shutter opening device (centrifugal system)
fig. 19
1. open shutter by hand and take away the pin,
which connects central shutter blade to centrifugal
system;
fig. 20
2. unscrew the two M8 hexagonal socket head cap
screws and pull out the whole centrifugal system
through the shutter blades.
3. do the reverse procedure to replace the shutter
opening device and put back the pin, which
connects central shutter blade to centrifugal
system.
Maintenance
Chapter8
