PROCEDURE 3

BACK

 

 

 

B A C K

CHANGING THE BACK ANGLE

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.

1.Loosen, but do not remove the front hex bolt that secures the back angle plate to the wheel- chair frame (FIGURE 15).

Back Angle

Front Hex Bolt (Loosen, but

Plate

do not Remove)

 

Rear Hex

Washer

Bolt

Locknut

Wheelchair

Frame

FIGURE 15 - CHANGING THE BACK ANGLE

2.Remove the rear hex bolt, washer and locknut that secure the back angle plates to the wheelchair frame (FIGURE 15).

3.Refer to FIGURE 16 to determine the mounting hole in the back angle plates for the necessary back angle.

4.Reinstall the rear hex bolt, washer and securely tighten with locknut. Refer to FIGURE 15 for correct hard- ware orientation.

5.If the wheelchair is equipped with cantilever arms, adjust the arms to keep them parallel to the ground/ floor. Refer to USING/INSTALLING/HEIGHT AD-

JUSTMENT/CORRESPONDING ARM ADJUST- MENT TO BACK ANGLE - CANTILEVER ARMS in PROCEDURE 2 of this manual.

NOTE: If the wheelchair has become less stable af- ter changing the back angle, reposition the rear wheels. Refer to ADJUSTING THE WHEELBASE LENGTH in PROCEDURE 6 of this manual.

REPOSITIONING THE BACK (CHANGING SEAT DEPTH)

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.

80O

Back Plate

85O

Back Plate

90O

Back Plate

95O

Back Plate

100O

Back Plate

105O

Back Plate

110O

Back Plate

Non-Recliners (FIGURE 17)

1.Determine the necessary back position for the de- sired seat depth of the wheelchair. Refer to CHANG- ING SEAT DEPTHS in PROCEDURE 10 of this manual.

2.Remove the rear wheels from the wheelchair. Refer to REMOVING/INSTALLING REAR WHEELS in PROCEDURE 6 of this manual.

3.Remove the four (4) hex bolts, washers and locknuts that secure the four (4) back angle plates to the wheel- chair frame.

NOTE: Note the back angle before removing the hex screws for reinstallation.

4.Line up the mounting holes in the back angle plates with the mounting holes determined in STEP 1.

FIGURE 16 - BACK ANGLE PLATE MOUNTING

HOLES FOR CORRESPONDING BACK

ANGLES

34

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Image 34
Invacare 96-100 Changing the Back Angle, Repositioning the Back Changing Seat Depth, Back Plate, Non-Recliners Figure