MAINTENANCE
-30-
Figure 42.
Brake assembly.
Figure 43.
Brake caliper removed for access to
brake pads.
Servicing Brake
Any type of foreign material on the brake rotor
creates the potential for improper performance.
Check the brake rotor (shown in
Figure 42
) reg-
ularly to make sure it is clean. If it needs clean-
ing, only use automotive brake parts cleaner
and a dry rag. DO NOT use water!
The brake pads (shown in
Figure 43
) will even-
tually need to be replaced.
Check the brake
pads for replacement as follows:
1.
Unplug the sander from the power source
and shut off the air pressure!
2.
Remove the motor cover to access the brake
components.
3.
The brake pads are made up of a metal
plate and a composite pad. Measure the
thickness of each pad with a fine ruler. If
either of the pads is below
1
⁄
8
", then
replace both.
Replace the brake pads as follows:
1.
Unplug the sander from the power source
and shut off the air pressure!
2.
Remove the caliper from the mounting
bracket. It is held in place by hex nuts and
snap rings on each mounting pin. You may
need to remove the air line to the caliper to
relieve any built up pressure.
3.
Remove the cap screws that hold the brake
pads to the caliper.
One of these can only
be reached if the caliper is disassembled.
4.
Remove the brake rotor and have it profes-
sionally surfaced at an automotive or
machine shop. Clean the rotor with automo-
tive brake parts cleaner and handle it with
a dry rag when installing.
5.
To finish the job, install the new brake
pads, reassemble and mount the caliper,
and reconnect the air line.
Brake
Rotor
Brake
Caliper
Brake Pads
