Removing/Installing The Stability Lock Assembly And/Or Swing Arm; Removing; Installing - Invacare Pronto M91 Service Manual

Removing/Installing the Stability Lock Assembly and/or
Swing Arm
NOTE: For this procedure, refer to FIGURE 9.3.
NOTE: Take note of position and orientation of the stability lock, swing arm and mounting
hardware before removal.

Removing

1. Remove the batteries. Refer to Installing/Removing the Batteries on page 83.
2. Remove the side shroud. Refer to Removing/Installing the Shrouds on page 71.
3. Remove the motor. Refer to Removing/Installing the Motor on page 78.
4. Remove the two mounting screws securing the pivot rack to the pivot link.
5. Remove the pivot rack from the pivot link.
6. Remove the front mounting screw, two nylon washers, O-ring, cupped washer,
locknut securing the pivot link to the wheelchair frame mounting hole.
7. Remove the shoulder screw and locknut securing the pivot link to the swing arm
mounting hole.
8. Perform one of the following:
• Removing the Stability Lock Assembly Hardware ONLY -
i. Remove the two shoulder screws and one washer securing the motor rack to
the walking beam.
ii. Remove the motor rack from the walking beam.
• Removing the Swing Arm -
i. Remove the long shoulder screw and locknut securing the swing arm to the
wheelchair frame.
ii. Remove the swing arm from the wheelchair frame.
9. Repeat STEPS 2-7 on opposite side of wheelchair.

Installing

1. Perform one of the following:
• Installing the Stability Lock Assembly ONLY -
i. Ensure compression spring is positioned in the middle hole of the motor rack.
ii. Align the motor rack under the walking beam (Detail "A").
iii. Using two shoulder screws and one washer, secure the motor rack to the
walking beam.
Part No. 1125038
SECTION 9—SHROUDS/FRAME
75
Pronto® M91™ and M94™