Removing/Installing The Motor; Replacing Motor Brushes - Invacare Pronto M61 Service Manual

Invacare® Pronto™ M61 Series with SureStep®
4. Grasp the motor engaging lever by the end that attaches to the
motor lock.
5.
Pull the motor engaging lever E through the lever support F on
the inside of the walking beam.
To install the motor engaging lever, reverse steps 1–5.

4.4.3 Removing/Installing the motor

WARNING!
Risk of injury or damage
When repairing or servicing the mobility device under
power, injury or damage may occur.
– Always turn off the mobility device before repairing or
servicing the mobility device.
– After any adjustments, repair or service and before
use, make sure that all attaching hardware is tightened
securely.
Tools:
•
5 mm Allen key
•
diagonal pliers
•
tie-wraps
1. Remove the seat. Refer to 4.11 Removing/Installing the seat,
page 21.
2. Remove the front battery. Refer to 4.3.1 Removing/Installing
the batteries, page 11.
3. Remove the drive wheel. Refer to 4.6.1 Removing/Installing the
drive wheel, page 17.
4. Remove the side cover. Refer to 4.7.2 Removing/Installing the
side cover, page 19.
5. Remove the front cover. Refer to 4.7.3 Removing/Installing the
front cover, page 19.
6.
Cut all tie-wraps A securing the motor lead to the frame.
7. Disconnect the motor lead connector B from the controller C.
8. Remove the cotter pin to disconnect the motor engaging lever.
Refer to 4.4.2 Removing/Installing the motor engaging lever, page
13.
14
9.
Remove the three long screws D and three short screws E and
F securing the motor to the walking beam.
Long screws are used on the same side of the motor as
the drive shaft.
10. Remove the motor from the walking beam.
11. Position the new motor against the walking beam.
12. Loosely install all screws except of the front inside short screw F.
13. Install the front inside short screw.
14. Tighten the three long and the three short screws.
15. If necessary, repeat steps 3–14 for motor on the other side.
16. Reverse steps 1–8 to reassemble the base.

4.4.4 Replacing motor brushes

Tools:
•
Phillips screwdriver
•
small flat screwdriver
1. Turn power off.
2. Disengage motors. Refer to 4.4.1 Disengaging motors, page 13.
3.
Remove the two end cap screws A on the end cap.
4.
Remove the end cap and locate the brush assembly B on each
side of the motor.
5.
Remove the screw C and washer D that mounts the shunt wire
E to the motor assembly. Do not discard the screw and washer.
1590501-A