Invacare IIBASIC - Manual (Page 37)

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FIGURE 3 - ENGAGING/DISENGAGING MOTORS
WITH MOTOR LOCKS
Towards
Outside of
Wheelchair
Motor Locks DISENGAGED
(Free Wheel Position)
Motor Locks ENGAGED
(Drive Position)
Dust Cover
Locknut
Nylon Washer
Fork
ADJUSTING FORKS (FIGURE 4)
1. Remove the dust cover from the caster headtube.
2. To properly tighten caster journal system and guard
against flutter, perform the following check:
A. Tip back the wheelchair to floor.
B. Pivot both forks and casters to top of their arc
simultaneously.
C. Let casters drop to bottom of arc (wheels should
swing once to one-side, then immediately rest in
a straight downward position).
D. Adjust locknuts according to freedom of caster
swing.
3. Test wheelchair for maneuverability.
4. Readjust locknuts if necessary, and repeat STEPS
1-3 until correct.
5. Snap dust cover into the caster headtube.
FIGURE 4 - ADJUSTING FORKS
Caster
Caster
Headtube
PROCEDURE 8 WHEELS
W
H
E
E
L
S