Replacing the entire brake

If the brake rotor is thinner than permitted, the brake may not be readjusted again. In this case, the brake rotor must be replaced.

Depending on wear and necessity, additional parts of the brake may need to be replaced.

─ Friction disc

─ Hub

─ O-ring

─ Banjo bolts

─ Feather key

─ Circlip

─ Magnet body

Taking off the fan cover


Fan cover	Rib screws

Unscrew the rib screws (3x) of the fan cover.

Take off the fan cover.

Only for fan blades on the motor shaft

Removing the fan blade

Circlip

Fan blade

Remove the circlip.

Remove the fan blade.

Only for auxiliary fans

Disassembling the auxiliary fan

Screws

	Auxiliary fan

Disconnect the power supply of the auxiliary fan.

Release the screws (2x) of the auxiliary fan.


Auxiliary fan

Take off the auxiliary fan.

	Mount

	Fillister-head screws M6x80

Release the fillister-head screws M6x80 (2x) of the mount and remove the mount.

Uncovering the brake

O-ring

Remove the O-ring.

Disassembling the magnet body

Magnet body

Hexagon head screws M6x70

Disconnect the power supply of the magnet body.

Release the hexagon head screws M6x70 (3x).

Pull the magnet body from the motor shaft.

Pulling off the brake rotor

Brake rotor	Hub

Pull the brake rotor from the hub and from the motor shaft.

Removing the friction disc

Fillister-head screws	Friction disc

Loosen the fillister-head screws (3x).

Remove the friction disc.

Removing circlips and feather keys

Front circlip	Rear circlip

Feather key

Remove the front feather key.

Remove the front circlip.

Remove the rear circlip.

Removing the hub

Hub	Rear feather key

Pull the hub from the motor shaft.

● The brake is completely disassembled.

Inserting the new hub

Hub	Rear feather key

Slide the new hub over the rear feather key onto the motor shaft.

Inserting circlips

Front circlip	Rear circlip

Feather key

Insert the rear circlip.

Insert the front circlip.

Insert the front feather key.

Inserting the new friction disc

Fillister-head screws	Friction disc

Slide on the new friction disc.

Tighten the fillister-head screws (3x).

Installing the brake rotor

Brake rotor	Hub

Slide the brake rotor over the motor shaft onto the hub.

Mounting the magnet body

Only for fan blades on the motor shaft

Magnet body

Hexagon head screws M6x70

Slide the magnet body onto the motor shaft.

Screw on the hexagon head screws M6x70 (3x). 7 Nm.

Then the air gap must be readjusted. See Setting the air gap on the brake.

Connect the power supply of the magnet body.

Only for auxiliary fans

Hexagon head screw M6x70	Mount

	Fillister-head screws M6x80

Slide the magnet body onto the motor shaft.

Screw on the mount with the fillister-head screws M6x80 (2x). 10 Nm.

Screw on the hexagon head screw M6x70 (1x). 7 Nm.

Then the air gap must be readjusted. See Setting the air gap on the brake.

Connect the power supply of the magnet body.

If necessary, replace the hexagon head screws M6x70 and banjo bolts with new ones.

Covering the brake

O-ring

Insert the O-ring.

Only for fan blades on the motor shaft

Fitting the fan blade

Circlip

Fan blade

Place the fan blade on the motor shaft.

Insert the circlip.

Only for auxiliary fans

Installing the auxiliary fan


Auxiliary fan

Place the auxiliary fan on the mount.

Fillister-head screws M4

	Auxiliary fan

Screw the auxiliary fan in place with the fillister-head screws M4 (2x). 1.5 Nm.

Connect the power supply of the auxiliary fan.

Closing the fan cover


Fan cover	Rib screws

Attach fan cover.

Screw in the rib screws (3x) of the fan cover.