Determining Toe In/Toe Out; Adjusting Toe In/Toe Out; Axle Tube Positioning For 0°/3°, 0°/6°, 3°/6° Or 9°/12° Camber Inserts - Invacare A4 Owner's Manual

SECTION 5—FRAME

Determining Toe In/Toe Out

NOTE: For this procedure, refer to FIGURE 5.6.
1. Inflate all pneumatic tires to recommended tire pressures (listed on the sidewall of the tire).
2. Measure the distance between the rear of the rear wheels and front of the rear wheels at the centerline of the rear wheels.
NOTE: For optimum accuracy, perform STEP 2 with the wheelchair occupied.
3. Determine the difference between the two measurements. If the difference between the two measurements is not within
1
+ / ‐inch, one of two conditions exists:
8
A. If the back centerline measurement of the rear wheels is smaller than the front centerline measurement of the rear wheels, a
toe‐out condition exists.
B. If the back centerline measurement of the rear wheels is larger than the front centerline measurement of the rear wheels, a toe‐in
condition exists.
4. If the difference between the measurements is not within +
In/Toe Out on page 28.
Front Centerline of Wheelchair
Rear Centerline of Wheelchair

Adjusting Toe In/Toe Out

NOTE: For this procedure, refer to FIGURE 5.7 on page 30.
NOTE: If the axle tube has been repositioned or replaced, Refer to Adjusting The Axle Tube on page 31.
Axle Tube Positioning For 0°/3°, 0°/6°, 3°/6° or 9°/12° Camber Inserts
DO NOT rotate the axle tube if the axle tube is locked out by the toe adjustment rings. If a locked
out axle tube is rotated, damage to the toe adjustment rings will occur.
NOTE: Refer to FIGURE 7 for a description of a locked out axle tube.
There is NO adjustment required to maintain a correct toe in/toe out measurement.
NOTE: The axle tube will be locked out by the toe adjustment rings and will NOT rotate.
A4 Owner's Manual
1
/ ‐inch, correct the toe‐in/toe‐out condition. Refer to Adjusting Toe
8
TOP VIEW OF WHEELCHAIR
DETAIL "A" - SIDE VIEW
OF WHEELCHAIR
Centerline of the Rear Wheel
Measure Here
FIGURE 5.6 Determining Toe In/Toe Out
CAUTION
28
Front of Wheelchair
Toe - Out
Toe - In
Smaller Than
Front
Larger
Than Front
Part No 1110545