Adjusting Forks - Invacare TDX 5 Owner's Operator And Maintenance Manual

SECTION 9—MOTOR LOCKS/FORKS
NOTE: Motor package is designed for an occupant weight up to 400 lbs. Force to disengage motor
lock may exceed ANSI/RESNA wc/vol2-1998 requirements for section 14.7 paragraph 7.2d. The
RESNA requirements assume a maximum occupant weight of 220 lbs.
Motor Lock
Lever
ENGAGE
(Drive
position)
FIGURE 9.2 Disengaging/Engaging Motor Lock Levers - Gearless Brushless GB™Motors

Adjusting Forks

NOTE: For this procedure, refer to FIGURE 9.3.
1. Remove the retaining screw that secures the headtube cover in place.
2. Remove the headtube cover (not shown) from the caster headtube.
3. 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.
4. Test wheelchair for maneuverability.
5. Readjust locknuts if necessary, and repeat STEPS 1-3 until correct.
6. Snap headtube cover into the caster headtube.
7. Reinstall retaining screws.
TDX™ Wheelchairs
Motor Lock
Lever
DISENGAGE
(Pull upward)
Retaining
Screw
NOTE: Headtube
cover not shown for
clarity.
FIGURE 9.3 Adjusting Forks
66
Locknut
Caster
Headtube
Fork
Part No 1143150