7
Inspection and maintenance
96
07.2020
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7.6.2
Replacing the brake rotor
CAUTION
Brake dust is hazardous to health.
➢
Do not clean brakes with compressed air, brushes or similar.
➢
Use a vacuum system or a damp cloth to remove brake dust.
➢
If dust develops, wear safety eyewear and a fine dusk mask.
WARNING
With an incorrectly assembled brake rotor, the brake cannot hold the load and the load
will fall.
This can lead to serious injuries and even death.
➢
Replacement work may only be carried out by a competent person.
The pressure springs of the brake must always be replaced at the same time.
Remove fan cover (1)
Remove retaining ring (5)
Take off fanwheel (6), remove parallel key (7)
Disconnect electrical connection of the brake
Unscrew the fastening screws (8)
Remove coil carrier (9)
Take off brake rotor (10)
NOTICE
When dampening the cloths,
only use
isopropyl alcohol. The use of brake
cleaner is
not
permissible
.
–
Ensure sufficient drying time for the cleaned surfaces.
We cannot recommend cleaning the rotor / friction linings because oil / grease has usually
worked into the lining and this can only be removed from the surface area to a limited
degree.
Furthermore, it is not possible to fully exclude negative reactions between the cleaning
products and the lining. We therefore recommend use of the spare parts kit here.
Check friction surfaces for wear and clean with a damp cloth.
Slide a new brake rotor (10) onto the hub (11) and check the available clearance.
NOTICE
Danger of damage
–
If increased clearance is present in the gearing between the brake rotor (10) and
hub (11), remove the hub (11) from the motor shaft (14) and replace it. Be sure to
consult the production factory before removing the hub (8).
Clean coil carrier.
Replace the brake pressure springs (see section
Replacing the pressure springs
).
Check the O-ring of the coil carrier for damage and replace if necessary.
