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© Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH
Maintenance and repair
s
4
m
n
2
m
q
v
k
s
6
n
2
q
v
k
7.2.3 Coupling
The coupling sprocket (Fig. 7/k, 8/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. 7/m, 8/m) off and ensure that it cannot be
switched on again.
C-KLR 80
Undo the screws (Fig. 7/s
4
) on the motor fl ange.
Remove the motor with the coupling half on the mo-
tor side (Fig. 7/q) from the fanhousing (Fig. 7/n
2
) axi-
ally and suspend using a lifting tool. If the sprocket
(Fig. 7/k) is damaged or worn, then replace it. The
fan (Fig. 7/v) should also be checked for damage
from time to time and replaced if necessary.
C-KLR 140
Undo the hexagonal nuts (Fig. 8/s
6
) on the motor
fl ange. Remove the motor with the coupling half
on the motor side (Fig. 8/q) from the fan housing
(Fig. 8/n
2
) axially and suspend using a lifting tool.
If the sprocket (Fig. 8/k) is damaged or worn, then
replace it. The fan (Fig. 8/v) should also be checked
for damage from time to time and replaced if neces-
sary.
NOTICE
Frequent starting up and high ambient tempe-
rature
The service life of the sprocket (Fig. 7/k, 8/k) is
reduced.
Re-assemble in reverse order.
Fig. 7 Coupling C-KLR 80
k
Coupling sprocket
m
Motor
n
2
Fan housing
q
Coupling half on the motor side
s
4
Screws
v
Fan
Fig. 8 Coupling C-KLR 140
k
Coupling sprocket
m
Motor
n
2
Fan housing
q
Coupling half on the motor side
s
6
Hexagonal
nut
v
Fan
