3
Then grasp the flat part of the spring with a pair of long nose pliers (Figure 4).
There is a hook at the other end of the spring (see Figure 5) that must be
disengaged from the bottom edge of the brush box. Press inward on the spring
to unhook the spring. The spring may “pop” out. Otherwise, pull it out. Repeat
the procedure for the spring on the other side of the motor or gearmotor.
STEP #4 – Inspect Brushes
It is not necessary to disconnect the brush wires just to inspect the brushes.
Insert a small screwdriver under the brush wire and pull the brush out of the
brush box. With the brush wire still connected to the brush box, measure the
length of the brush from the point where the wire merges with the brush to the
end of the brush that contacts the commutator inside the motor.
Figure 6 – Pull brush out.
Figure 7 – Leave brush connected.
Figure 4 – Grasp spring with pliers.
Figure 5 – Push in; pull out.
Hooks
