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Adjusting Forks
Caster angle vertical axis MUST be at 90° +/- 1° from the ground, if not a
flattering risk may occur. Both caster assemblies should be at the same angle.
After ANY adjustments, before use, make sure all attaching hardware
is tightened securely - otherwise injury or damage may occur.
NOTE: For this procedure, refer to FIGURE 5.8.
NOTE: In case of unacceptable rotation, the specific
Top bearing needs to be change by a new one.
1. Remove the dust cover from the caster head tube.
2. To properly control caster system and guard
against flutter, perform the following check:
A. Tip back the wheelchair to floor.
B. Pivot caster fork assemblies in rear position
C. Push caster to initiate clockwise movement
D. Let caster fork assembly rotate freely
E. Unacceptable rotation can't be adjusted, the
Specific top bearing needs to be replaced.
F. Do not overtight the locknut (50-60 Nm), you
may Risk damaging the bearings.
3. Repeat STEPS B
one side, then immediately rest in a straight
downward position.
4. Test wheelchair for manoeuvrability.
5. Snap dust cover into the caster head tube.
F until the wheels swing once to
-
SECTION 5—REAR WHEELS/FRONT CASTERS
W A R N I N G
3 1
Dust
Cover
Lock nut
(M12)
Caster
head tube
Caster
Caster vertical
axis (M12)
FIGURE 5.8
Adjusting Fork
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