
1
WARNING: The user SHOULD NOT be seated in the
wheelchair until the installation of the back support is
complete. Follow instructions in steps 1 through 3 before
the user transfers to the wheelchair.
COMPASS®Hardware (2 Point)
1Loosen the two clamp bolts (A) on both sides, using
the 5mm hex key. Place and then tighten the clamps
onto the wheelchair canes.
Suggestions: Make sure the clamps are the same height
on the wheelchair canes and that they sit square to the
wheelchair. Prior to installation, Make sure that the cane
clamp locking screws (J) are ush against the inner clamp
surface.
2Slightly loosen the bolts (B) on both sides, using the
5mm hex key. Slide the brackets in and out until the
wheelchair canes are relaxed. If further adjustments
are needed that the bracket cannot accommodate,
follow step 2a for Quick Release or 2b for Fixed.
2a: COMPASS 2-Point Quick Release: Release the
toggle (C) and adjust the clamp angles until the
wheelchair canes are relaxed. Then lower the toggle to
engage the locking mechanism.
2b: COMPASS Fixed: Loosen (but do not remove) the
bolts (D) with the 5mm hex key and an 11mm open-
end wrench around cone (E). Adjust the clamp angles
until the wheelchair canes are relaxed.
3When the hardware is at the correct position and the
wheelchair canes relaxed, securely tighten the bolts
(B) on both of the sides. If the bolts (D) have been
loosened, they should be tightened to between 90-110
in-lbs., using the 5 mm hex key and placing the 11mm
open-end wrench around the cone (E).
PARTS INCLUDED
All COMPASS®4 Styles:
Complete VISCO BACK®Assembly with mounting hardware
5mm hex key, 3mm hex key, 2mm hex key
4 Point Hardware:
45°assembly (includes straps for larger wheelchair canes)
⅛” hex key, 4mm hex key
PARTS NEEDED
(Fixed):11mm open-end wrench
VISCO BACK Operation Manual
IMPORTANT: The user may transfer to the wheelchair ONLY after the bolts have been securely tightened as described in Step 3.
4Height Adjustment: If height adjustment is needed, slightly loosen bolts (A) or (B) on both sides, using the 5mm hex key. The back
support can slide up and down, using either the slot on the back support shell or on the wheelchair canes. Tighten all four bolts (A)
or (B) at the desired height.
5Depth Adjustment: If depth adjustment is needed, loosen bolts (F) on both sides, using the 5mm hex key. The back support can slide
forward or backwards up to 2 inches total. Tighten both bolts (F) at the desired depth.
Suggestion: If additional depth adjustment is needed, COMPASS can be used in alternate congurations, including moving the cane clamp or
the complete depth adjustment bracket with the cane clamp assembly to the opposite side of the wheelchair. See “Alternate Congurations”
on the next page.
6Recline Adjustment:, using th 5mm hex key, loosen the top and bottom bolts (G) on both sides until the back support can be tilted.
Adjust, then tighten all four bolts (G).
IMPORTANT: When installation and adjustments are complete, all bolts should be tightened to a minimum of 85 in-lbs.
WARNING: The locking screws (H) and (J) should be tightened only until contact is made. Over-tightening the locking screws (H)
may cause unwanted changes in the recline position.
7Tighten locking screws (H) on both sides, using the 3mm hex key to lock angle rotation. These make contact with the recline bolts (G)
and prevent angle rotation, but may also be used for minor angle adjustments if the bolts (G) are loose.
8Locking the clamp: To make contact with the wheelchair canes and lock the clamp in its nal position, tighten the locking screw (J) on
both sides, using the 3mm hex key.
HA
J
B
F
C
COMPASS 2-Point Quick Release
B
K
G
D
E
N
M
P
R
L
COMPASS 4-Point & COMPASS Fixed