PROCEDURE 6 | REAR WHEELS |
R E A R
W
H
E
E
L
S
NOTE: Make sure the number of threads showing beyond the outside jam nut is the SAME for both rear wheels. This will help avoid a
7.Adjust the wheel locks. Refer to ADJUSTING THE WHEEL LOCKS in PROCEDURE 7 of this manual.
8.If wheelchair is equipped with
ADJUSTING THE WHEELBASE WIDTH (FIGURE 9)
WARNING
The following procedure must be performed only by an authorized Invacare Dealer or Qualified Tech- nician.
After adjustments and before use make sure all at- taching hardware is securely tightened.
NOTE: Increasing the wheelbase width may prevent the wheelchair from passing through smaller door jams and other tight places. Consider access to daily activities before increasing wheelbase width.
1.Remove the rear wheel from the wheelchair.
2.Loosen the two (2) jam nuts that secure the axle bush- ing to the axle mounting plate.
3.Move the axle bushing in or out to the desired posi- tion.
4.Securely tighten the jam nuts that secure the axle bushing to the axle mounting plate.
5.Reinstall the rear wheel onto the wheelchair.
6.Repeat STEPS
NOTE: Make sure the number of threads showing beyond the outside jam nut is the SAME for both rear wheels. This will help avoid a
Axle | Jam Nuts |
Mounting |
|
Plate |
|
ADJUSTING REAR WHEEL HEIGHT (FIGURE 10)
WARNING
The seat height, seat depth, back angle, seating sys- tem, size and position of the rear wheels, as well as the user condition directly relate to the stability of the wheelchair. Any change to one (1) or any combi- nation of the seven (7) may cause the wheelchair to decrease in stability. These adjustments MUST be performed by an authorized dealer or qualified tech- nician.
After adjustments and before use make sure all at- taching hardware is securely tightened.
1.Determine the rear wheel position for the desired seat-
2.Remove the rear wheels from the wheelchair.
3.Remove the four (4) hex screws, locknuts and eight
(8) coved washers that secure the axle mounting plate to the wheelchair.
4.Position the axle mounting plate with the mount- ing holes in the wheelchair frame determined in STEP 1.
NOTE: Allegro Rigid Frame ONLY: To install axle mounting plate into its' highest or lowest position, one crossmember will use an axle plate mounting hole. Install hex screw through the axle plate, coved washer, wheelchair frame and the rigid crossmember.
5.Resecure the axle mounting plate to the wheelchair frame. Refer to FIGURE 10 for correct hardware ori- entation. Torque to
6.Repeat STEPS 3-5 for the opposite side of the wheel- chair.
Locknuts
Washers
Coved Washers
Coved
Washers
| Hex Screws | Axle Mounting Plate | |
Axle Bushing |
| ||
FIGURE 10 - ADJUSTING REAR WHEEL HEIGHT | |||
| |||
FIGURE 9 - ADJUSTING THE WHEELBASE WIDTH
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