PROCEDURE 6

SEAT

S E A T

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 tube position.

1.Refer to the chart below to determine available front seat-to-floor heights for each wheelchair 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.

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.

SHORT FRAME SEAT-TO-FLOOR HEIGHTS

FRONT SEAT-TO-FLOOR HEIGHT

 

 

AXLE TUBE POSITION

 

 

 

 

 

 

 

REAR WHEEL SIZE (INCHES)

 

 

 

 

 

 

 

 

 

18

 

20

22

 

24

 

 

 

 

 

 

 

13-inch

Upper

 

N/A

N/A

 

N/A

 

 

 

 

 

 

 

14-inch

Center

 

Upper

N/A

 

N/A

 

 

 

 

 

 

 

15-inch

Lower

 

Center

Upper

 

N/A

 

 

 

 

 

 

 

16-inch

N/A

 

Lower

Center

 

Upper

 

 

 

 

 

 

 

17-inch

N/A

 

N/A

Lower

 

Center

 

 

 

 

 

 

 

18-inch

N/A

 

N/A

N/A

 

Lower

 

 

 

 

 

 

 

LONG FRAME SEAT-TO-FLOOR HEIGHTS

FRONT SEAT-TO-FLOOR HEIGHT

REAR WHEEL SIZE (INCHES)

 

 

AXLE TUBE POSITION

 

 

 

 

 

 

 

 

20

 

22

 

24

 

 

 

 

 

 

16-inch

Upper

 

N/A

 

N/A

 

 

 

 

 

 

17-inch

Center

 

Upper

 

N/A

 

 

 

 

 

 

18-inch

Lower

 

Center

 

Upper

 

 

 

 

 

 

19-inch

N/A

 

Lower

 

Center

 

 

 

 

 

 

20-inch

N/A

 

N/A

 

Lower

 

 

 

 

 

 

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.

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Invacare Top End Terminator Jr manual Front Seat-to-floor Height Adjustment, Ensure wheel locks engage properly. Refer to

Top End Terminator Jr specifications

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