Elmo Rietschle V-VCB 20/25 - Manual (Page 21)

21 www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH |
m
q
s
5
u w
v
q
1
l
1
l
k
r
v
1
s
4
Maintenance and repair
7.2.2 Coupling
The coupling rubbers (Fig. 5/k) are subject to wear
and und must be checked regularly (at least once a
year).. You can tell when the coupling rubbers are
worn by a knocking noise when the pump starts up.
CAUTION
Defective coupling rubbers
Defective coupling rubbers may lead to the rotor
shaft breaking
To check the coupling switch the mo-
tor (Fig. 5/m) off and ensure that it cannot be
switched on again.. Undo screws (Fig. 5/s
4
)
. Remove the machine axially with the coupling half
on the pump side (Fig. 5/q
1
). If the coupling rub-
bers (Fig. 5/k) are damaged remove the retaining
rings (Fig. 5/l) from the coupling bolts (Fig. 5/r) and
replace the coupling rubbers (Fig. 5/k).
Check and if necessary replace the coupling bolts
(Fig. 5/r): Remove the retaining ring (Fig. 5/l
1
). Re-
move the coupling half on the pump side (Fig. 5/q
1
)
and the fan (Fig. 5/v) from the pump shaft. Undo
the nuts (Fig. 5/w) and the washers (Fig. 5/u) and
replace the coupling bolts.
NOTICE
Frequent starting up and high ambient tempe-
rature
The service life of the sprocket (Fig. 6/k) is reduced
as a result of this.
Re-assemble in reverse order.
Fig. 5 Coupling
k Coupling rubber
l Retaining ring
l
1
Retaining ring
m Motor
q Coupling half on the motor side
q
1
Coupling half on the pump side
r Coupling bolt
s
4
Screw
s
5
Screw
u Washer
v Fan
v
1
Fan cover
w Nut