Invacare Top End Terminator Jr. - Manual (Page 31)

31
12-inches
W
H
E
E
L
S
FIGURE 9 - DETERMINING TOE IN/TOE OUT -
COMPARING CENTERLINE MEASUREMENTS OF
REAR WHEELS
2. Measure the distance between the centerlines at the
rear and front of the rear wheels at approximately 12-
inches from the ground/floor (FIGURE 8).
NOTE: For optimum accuracy, perform STEP 2 with the
wheelchair occupied.
3. Determine difference between two (2) measurements.
If difference between the two (2) measurements is
GREATER than 1/2-inch (0 + 1/4-inch for maxi-
mum rollability), one (1) of two (2) conditions exists:
a. If the rear centerline measurement of the rear
wheels is SMALLER than the front centerline
measurement of the rear wheels, a TOE-OUT
condition exists (FIGURE 9).
b. If the rear centerline measurement of the rear
wheels is LARGER than the front centerline
measurement of the rear wheels, a TOE-IN con-
dition exists (FIGURE 9).
4. If the difference between the measurements is greater
than 1/2-inch, correct the toe-in/toe-out condition.
Proceed to ADJUSTING TOE-IN/TOE-OUT in this
procedure of the manual.
WHEELS PROCEDURE 7
Adjusting Toe In/Toe Out (FIGURE 10)
NOTE: This procedure is required any time the axle tube
is moved from the factory set position or is replaced.
NOTE: Make the following adjustment for one (1) cam-
ber at a time.
1. Open the camber clamps. Refer to OPENING/CLOS-
ING CLAMPS in this procedure of the manual.
2. Slowly rotate the axle tube CLOCKWISE or COUN-
TERCLOCKWISE until the rear wheels are approxi-
mately in a straight line.
WARNING
QUICK RELEASE LEVERS - Make sure the quick re-
lease levers are pointing towards the rear of the
wheelchair and are in the CLOSED position BE-
FORE using the wheelchair, otherwise personal
injury or damage to the wheelchair may result.
STANDARD - Make sure the hex screws and lock-
nuts are securely tightened BEFORE using the
wheelchair, otherwise personal injury or damage
to the wheelchair may result.
3. Close the camber clamps. Refer to OPENING/CLOS-
ING CLAMPS in this procedure of the manual.
DETERMINING/ADJUSTING
TOE IN/TOE OUT
Determining Toe In/Toe Out
(FIGURES 8 AND 9)
1. Inflate all pneumatic tires to recommended tire pres-
sures (listed on the sidewall of the tire).
Toe-in
Smaller Than
Front
Larger Than Front
Toe-out
Top View of
Wheelchair
FRONT OF WHEELCHAIR
Front
Centerline
Rear
Centerline
FIGURE 8 - DETERMINING TOE IN/TOE OUT -
MEASURING CENTERLINES OF REAR WHEELS