PULSE 6 SERVICE MANUAL
PAGE 6.2
2009
SUNRISE MEDICAL
Note: When replacing brush assemblies,
always replace both motors. Run-in the brush
assemblies prior to delivering the power chair
to the customer by releasing the gearbox
assembly and operating the motor for 20 to
30 minutes, alternating between forward and
reverse.
5.
Inspect the brush assembly (
fi
g. 6.4).
Replace any brush assembly less than ¼ inch
long. Ensure that the lead to the brush and spring
has not over heated and that the ends of the brush
are sharp and clean.
6.
Inspect the motor’s commutator (
fi
g. 6.5).
Verify that it is clean, not overheated, and does
not show signs of excessive arcing. Normal color
is bright copper to dull brown copper. Contact
Sunrise Medical Technical Service if in doubt of its
condition.
7.
Inspect the motor connector at both the
motor end and the control module end for signs of
over heating (
fi
g. 6.5).
Note: Disconnect the motor connector from the
control module if the motor/gearbox assembly
is mounted in the power chair.
Section 6
Motor/gear Box Inspection (cont.)
fig. 6.4
fig. 6.5
fig. 6.6
