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Fig. 13 Coupling
Maintenance and repair
k
Coupling sprocket
m
Motor
n
Motor flange housing
q
Coupling half on the motor side
s
5
Screws
m
q
n
s
5
k
7.2.4 Coupling
CAUTION
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.
CAUTION
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. 13/k) 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) Suspend the motor (Fig. 13/m) on the eyebolt using lifting gear.
c) Release the screws (Fig. 13/s
5
) on the motor flange and axially pull the motor with the half of the cou-
pling on the motor side (Fig. 13/q) off the motor flange housing (Fig. 13/n).
d) Check the sprocket (Fig. 13/k). If the sprocket is damaged or worn, replace it.
Re-assemble in reverse order.
