Orthofab Tango - Changing the Overall Width

4 SETUP INSTRUCTIONS
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To change the position of the mid-wheels (see; figure 27-B) :
1- Remove the middle wheels from the wheelchair. See section 5.6.1 ;
2- Remove the (E) screws (7/16" key) and (G) nuts, which maintains the
housing assembly for the middle wheel axle. Don't lose the (F)
washers;
3- Replace the housing assembly for the middle wheel at the needed
position on the frame. Consult the table 4 and the figure 27-B (section
4.9.3).
4- Install the (E) screws (7/16" key) and (G) nuts and tighten them to a
torque of 25 pounds/inch. To do this, use a torque wrench;
5- Repeat this procedure for the other side;
6- Replace in position the middle wheels on the wheelchair;
7- Engage the tilt mechanism and carry out a stability test on the
wheelchair;
8- Repeat this entire procedure (1 to 7) until the wheelchair is stable.
4.9.4 CHANGING THE OVERALL WIDTH
The manual tilt wheelchair width can be adjusted.
When the width is reduced to a certain point the swingaway function of the
armrests might be impaired.
To do it :
1. Loosen the two (2) nuts, using a 1 1/8” key (see; figure 28-A);
2. Screw the housing as shown at figure 28-A below and leave a space of 1/8"
inch between the screw and the nut;
3. Make sure that the threaded parts on the housings are positioned at 90°
relatively to the floor (figure 28-B);
4. Tighten the two (2) nuts with a torque of 40 pounds/foot.
NOTE : DO NOT tighten too much because it could deform the housing.
Once the procedure is completed, it will be necessary to adjust
the parking brakes as per the instructions of section 4.10.1.