4 SETUP INSTRUCTIONS
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Figure 6-B: Dynamic backrest installation on the wheelchair.
1. Determine at which angle the backrest should be installed.
2. Take the backrest structure tubing (G) and insert the compression piston (D) equal
to the oblong hole in the same way as shown at figure 6-B. The compression
piston (D) should be sprayed with grease before insertion.
3. Spray with grease the 4 nylon washers (C) and put two of them on the inside in
line with the bottom holes on the anchor structure (H). The grease should retain
the nylon washers stick to the anchor structure (H) (see; figure 6-B).
4. Take the backrest structure tubing (G) with the compression piston (D) and install
it on the anchor structure (H). Once that the two (C) nylon washers, the
compression piston (D) and the oblong hole on the backrest structure tubing will
be all aligned, insert the (A) screw, the (B) nut and tighten, using two 7/16" key.
NOTE: Tighten the screws at 20 pounds/inch. This tightening force should
allow the dynamic backrest assembly to move freely.
5. Take the two others (C) nylon washers and put them on the inside in line with the
adjustment angle holes on the anchor structure (H).
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