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© Gardner Denver Schopfheim GmbH
Maintenance and repair
Fig. 10 Coupling
m
v
n
2
s
5
k
q
k
Coupling half on the motor side
m
Motor
n
2
Fan housing
q
Coupling sprocket
s
5
Screws
v
Fan
7.2.3 Coupling
NOTICE
Property damage due to defective coupling sprocket!
Defective sprockets can cause breaking of the rotor shaft and blackout failure of the
machine.
Ø
Regularly check the coupling tooth for wear.
NOTICE
Property damage due to frequent starting and high ambient temperature!
Frequent starting and high ambient temperature reduces the lifetime of the sprocket.
Ø
Regularly check the coupling tooth for wear.
The coupling sprocket (Fig. 10/q) is subject to wear and must be checked regularly (at least 1 x per year).
a) Switch the motor off and secure it against unexpected restart.
b) Hook the motor (Fig. 10/m) in through the lifting lug using a lifting gear.
c) Release the screws (Fig. 10/s
5
) on the motor flange and axially pull the motor with the half of the cou-
pling on the motor side (Fig. 10/k) off the fan housing (Fig. 10/n
2
).
d) Check the sprocket (Fig. 10/q). If the sprocket is damaged or worn, replace it.
e) The fan (Fig. 10/v) should also be checked for damage from time to time and replaced if necessary.
Re-assemble in reverse order.
