Invacare Arrow RWD Service Manual page 146

SECTION 14—WHEELS/MOTORS
If wheelchair is equipped with pneumatic tires, deflate tire before removing rim -
otherwise serious personal injury and damage will result.
2. If the wheelchair is equipped with pneumatic tires, deflate the tire.
3. Remove the five mounting screws that secure the rim to the gearless/brushless motor.
4. Remove the rim and tire from the gearless/brushless motor.
Installing
1. Perform one of the following:
A. Pneumatic Tires - Secure new/existing rim and new/existing pneumatic tire
[w/ new tube (if applicable)] to the gearless/brushless motor and torque the five
mounting screws to 160 in-lbs (13.3 ft-lbs)(18.03 Nm).
NOTE: In order to install the tire with flat free properly, the tire must be compressed to a certain
point to allow the use of the 16 mm length mounting screws. This is accomplished by first using
three 25 mm length mounting screws threaded in every other mounting hole. The longer mounting
screws are not to be threaded completely into the GB motor. They are to be threaded 1/4-inch only
to provide compression of the tire.
B. Flat Free Tires - Secure new/existing rim and new/existing tire with flat free to
gearless/brushless motor with the three M8 x 1-1/4 x 25 mm mounting screws (not
provided). See DETAIL "A" in FIGURE 14.7.
Tire
DETAIL A: M8-1-1/4-25MM
MOUNTING SCREW
Five
M8-1-1/4-
16mm
Mounting
Screws
FIGURE 14.7 Removing/Installing the Rim and/or Tire
NOTE: Once all three mounting screws are in place, install one shorter mounting screw in each of
the two remaining mounting holes. Remove one longer mounting screw at a time and replace with
the existing M8 x 1-1/4 x 16 mm length mounting screws. Torque all five mounting screws to 160
in-lbs (5 ft-lbs)(6.78 Nm).
3G Storm Series® Wheelchairs
WARNING
Gearless/Brushless Motor
146
Rim
Part No. 1104849