Wisper 906 Alpino Owner's Manual page 16

14.3.2. Installing and removing pads.
Caution: The pads and rotor must be kept clean and free from oil or grease
based contamination. If the pads become contaminated you must discard them
and replace them with a new set. A contaminated disc should be cleaned with a
proprietary brake cleaning solution.
14.3.2.1. For the front brake remove the caliper from the fork leg complete
with the mount adapter by removing the two 6mm Allen caliper fixing screws.
For the rear brake remove the caliper from the adapter by removing the two
6mm Allen caliper fixing screws leaving the adapter fitted to the mounts on the
bike frame. The pads can then be removed by grasping the pad end-tab, lifting
the pad clear of the piston pin and then manoeuvering it out of the rotor slot in
the caliper body.
14.3.2.2. To refit the pads hold the pad end-tab, insert it into caliper slot
with its metal backing towards the piston. Make sure the hole in the metal
backing goes over the piston pins. When correctly inserted, the pad will be held
in place magnetically. Repeat the procedure for the other pad. Refit the caliper
loosely using the two 5mm Allen screws, apply the brake lever and tighten
securely to 5 to 6 N.M whilst continuing to apply the brake lever and then
repeat the adjustment procedure described above. (note 1 – use of a thread
locking compound is recommended on the caliper fixing screws).
Note 2: Disc brake pads are held in the caliper magnetically. No tools are
required to install or remove them. As the left and right pads are the same they
may be inserted on either the left or right of the caliper.
Warning: If you are unsure about any part of the installation process you
should seek advice from Wisper service center or qualified mechanic.
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