Elmo Rietschle C-DLR 60/100/120/150/250/300/400/500 - Manual (Page 25)

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Maintenance and repair
s
4
q
k
m
n
2
m
q
n
1
v
k
s
6
7.2.3 Coupling
The coupling sprocket (Fig. 10/k, 11/k)) is subject to
wear and must be checked regularly (at least once a
year).
CAUTION
Defective coupling sprocket.
Defective sprockets may lead to the rotor shaft
breaking.
To check the coupling switch the motor
(Fig. 10/m, 11/m) off and ensure that it cannot be
switched on again.
C-DLR 60
Undo the screws (Fig. 10/s
4
) on the housing fl ange
(Fig. 10/n
1
) . Remove the motor axially with the
half of the coupling on the motor side (Fig. 10/q)
and suspend with the lifting device. If the sprocket
(Fig. 10/k) is damaged or worn, then replace it.
C-DLR 100 / 120/ 150
Undo the hexagonal nuts (Fig. 11/s
6
) on the motor
fl ange. Remove the motor with the coupling half
on the motor side (Fig. 11/q) from the fanhous-
ing (Fig. 11/n
2
) axially and suspend using a lifting
tool. If the sprocket (Fig. 11/k) is damaged or worn,
then replace it. The fan (Fig. 11/v) should also be
checked for damage from time to time and replaced
if necessary.
NOTICE
Frequent starting up and high ambient tempe-
rature
The service life of the sprocket (Fig. 10/k, 11/k) is
reduced. is reduced.
Re-assemble in reverse order.
C-DLR 250 / 300 / 400 / 500
The coupling needs no maintenance.
Fig. 10 Coupling C-DLR 60
k Coupling sprocket
m Motor
n
1
Housing
q Coupling half on the motor side
s
4
Screws
Fig. 11 Coupling C-DLR 100 - 150
k Coupling sprocket
m Motor
n
2
Fan housing
q Coupling half on the motor side
s
6
Hexagonal nut
v Fan