Adjusting The Track; Adjusting The Caster Wheels; Adjusting The Caster Wheel Journal Angle - Otto Bock Voyager Evo Instructions For Use Manual

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6.2.4 Adjusting the track

INFORMATION
► The track must be adjusted after the following adjustments have been made:
→ Adjusting the track width: see Page 11
→ Adjusting the rear wheel camber: see Page 12
► The track setting must be checked and, if necessary, adjusted after the following adjustments have been
made:
→ Adjusting the horizontal position of the rear wheel: see Page 10
INFORMATION
► When adjusting the rear wheel track, always check the symmetry of the track width setting. To do this, meas­
ure the distance between the outer side of the camber module and the outer side of the axle tube clamp.
► The caster wheel journal angle should be checked immediately after every adjustment to the track (see
Page 13 et seq.).
1) Loosen the seat clamps (see fig. 8) and axle tube clamps (see fig. 9) so that the camber modules are only
lightly clamped in the rear wheel axle (see Page 11).
2) Place the wheelchair on an even surface. Avoid twisting the axle when doing this.
3) Pull the rear wheel out slightly in order to make room for the installation.
4) A 90° back square placed on a level surface is used as an adjustment aid.
5) Carefully turn the camber module until the spanner flat is flush with the blade of the back square. The spanner
flat of the camber module is now vertical (see fig. 7, item 2).
6) Tighten the Allen head screws respectively on the axle tube clamps to 15 Nm (see fig. 9).
7) Tighten the Allen head screws respectively on the seat clamps to 7 Nm (see fig. 8).

6.3 Adjusting the caster wheels

6.3.1 Adjusting the Caster Wheel Journal Angle

When the rear wheels have been adjusted for the user, the caster wheel journal angle must be adjusted if needed.
The caster wheel axles/caster wheels must be perpendicular to the ground to ensure optimum wheelchair driving
characteristics (see fig. 12).
1) If necessary: Heat the plug guide (see fig. 15, right) with hot air (~ 80 °C) to soften the Loctite.
2) Loosen the clamping on the plug guide. In order to do so, remove the M8 Allen head screw on the inside while
it is hot (see fig. 13, item 1).
3) Loosen the bearing sleeve:
→ Loosen the set screw on the outside (see fig. 13, item 2; see fig. 14).
→ Remove the bearing sleeve (not illustrated).
4) Instead of the bearing sleeve, slide a suitable lever tube into the caster wheel journal (see fig. 15, item 1).
5) Pry the caster wheel journal (see fig. 15, item 2) secured with Loctite out of the taper fitting (see fig. 15,
item 3).
6) Remove the remaining Loctite from the surfaces and threads of the disassembled components (not illustrated).
Apply new "high strength" Loctite.
INFORMATION: Note that only approx. 5–7 min. is available for the subsequent steps 7–9.
Voyager Evo
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