VISCO-BACK
Attaching Quick Release Compass Hardware
Toll Free 800.564.9248 www.comfortcompany.com 509 South 22nd Ave Bozeman, MT 59718
www.comfortcompany.com
IS-VISCOBACK-REV0313
VISCO-BACK Attaching Quick Release Compass Hardware
Parts Included:
1 - Complete Visco-Back Assembly
1 - 5 mm Hex Key
1 - 2.5 mm Hex Key
Loosen the two clamp bolts (A) on both sides using the supplied 5 mm Hex Key. Tighten the clamps onto
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the left and right wheelchair canes.
Tip: Make sure the clamps are the same height relative to one another on the canes.
Tip: Make sure the clamps are square to the wheelchair.
The triangles adjust in and out to accommodate varying sized wheelchairs. The Visco-Back can fit onto a
wheelchair 1" narrower to 1" wider of the purchased size.
Slightly loosen bolts (B) above and below the triangles on both sides using the 5 mm Hex Key. Slide the
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triangles in or out until the wheelchair canes are relaxed.
Triangle Height Adjustment: Make sure the left and right triangles are at the same height relative to one
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another on the backrest shell. When triangles appear to be in line, finger-tighten bolts (B) on both sides,
open quick release levers (C), and remove/reinstall the backrest.
Note: The quick release levers may be tight when first actuated, but will loosen after 1-3 times.
B
C
If the backrest was able to be removed and reinstalled smoothly, no additional height adjustments are
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needed. If further adjustments are needed, repeat step 3. Fully tighten bolts (B) when adjustments are
complete using 5 mm Hex Key.
The installation of the backrest is complete. Adjustments for depth, angle, height, and spinal curvature
can now be made. The user can be seated during this process.
Angle and Depth Adjustment: Loosen the two bolts (D) on both sides using the 5 mm Hex Key. The
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backrest can be slid forward/backwards. The backrest can be rotated angularly. Tighten all four bolts
when the backrest depth and angle are adjusted.
IMPORTANT: When installation and adjustments are complete, all bolts should be tightened to a miniĀmum of 85 in-lbs.
Tighten set screw (E) on both sides using the supplied 2.5 mm Hex Key to lock angle rotation. These set
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screws intersect with the top bolts and prevents angle rotation.
Tighten set screw (F) on both sides using the 2.5 mm Hex Key to prevent vertical movement and angular
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rotation of the clamps.
*This does not include set screws
A
F
D
E