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PROCEDURE 6
Front Seat-to-floor Height Adjustment
NOTE: Refer to STABILITY in PROCEDURE 1 for
warnings concerning wheelchair stability.
Seat-to-floor height is determined by measuring from
the top of the seat rail to the ground/floor.
The different seat-to-floor heights are possible by us-
ing different combinations of rear wheel size and axle
S
tube position.
E
1. Refer to the chart below to determine available
A
front seat-to-floor heights for each wheelchair
T
frame height.
2. Determine the changes needed to the rear wheels
and axle tube by reading across the chart for the
seat-to-floor height determined in STEP 1.
FRONT SEAT-TO-FLOOR HEIGHT
13-inch
14-inch
15-inch
16-inch
17-inch
18-inch
FRONT SEAT-TO-FLOOR HEIGHT
NOTE: Rear Seat-to-Floor height is two (2) inches shorter than Front Seat-to-Floor height.
NOTE: The Front Seat-to-Floor heights in the chart are determined using a 5-inch front caster.
NOTE: Refer to REPOSITIONING THE AXLE TUBE in PROCEDURE 7 for an explanation of the Upper,
Center and Lower axle tube positions.
SHORT FRAME SEAT-TO-FLOOR HEIGHTS
LONG FRAME SEAT-TO-FLOOR HEIGHTS
16-inch
17-inch
18-inch
19-inch
20-inch
3. Refer to REPOSITIONING THE AXLE TUBE in
PROCEDURE 7 of the manual to adjust the axle
tube position.
4. After adjusting the axle tube, the front casters may
need to be repositioned to ensure the caster
headtubes are perpendicular to the ground. Refer
to ADJUSTING FRONT CASTER HEIGHT in
PROCEDURE 7.
5. Anti-tipper height (if applicable) must be adjusted
to maintain 1-1/2 to 2-inch clearance between the
bottom of the anti-tipper wheels and the floor. Refer
to ANTI-TIPPER REPLACEMENT/ADJUST-
MENT in PROCEDURE 8 of this manual.
6. Ensure wheel locks engage properly. Refer to
WHEEL LOCK ADJUSTMENT/REPLACEMENT
in this procedure of the manual.
AXLE TUBE POSITION
REAR WHEEL SIZE (INCHES)
18
20
Upper
N/A
Center
Upper
Lower
Center
N/A
Lower
N/A
N/A
N/A
N/A
REAR WHEEL SIZE (INCHES)
AXLE TUBE POSITION
20
Upper
Center
Upper
Lower
Center
N/A
Lower
N/A
26
22
N/A
N/A
Upper
Center
Upper
Lower
Center
N/A
Lower
22
24
N/A
N/A
N/A
Upper
Center
N/A
Lower
SEAT
24
N/A
N/A
N/A
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