Section 12-Casters; Adjusting Forks - Invacare nutron R51 Owner And Maintenance Manual

SECTION 12—CASTERS
SECTION 12—CASTERS
After ANY adjustments, repair or service and BEFORE use, make sure that all
attaching hardware is tightened securely - otherwise injury or damage may result.
Before performing any maintenance, adjustment or service verify that ON/OFF
switch on the joystick is in the OFF position.
As with any vehicle, the wheels, casters and tires should be checked periodically for
cracks and wear and should be replaced.

Adjusting Forks

NOTE: For this procedure, refer to FIGURE 12.1.
NOTE: It may be necessary to extend the telescoping front rigging support to gain access to the
caster headtube hardware. Refer to Adjusting/Replacing Telescoping Front Rigging Support on
page 41.
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. Remove battery boxes from wheelchair. Refer to Installing/Removing the Battery
Boxes on page 57.
B. Tip back the wheelchair to floor.
C. Pivot both forks and casters to top
of their arc simultaneously.
D. Let casters drop to bottom of arc
(wheels should swing once to
one-side, then immediately rest in a
straight downward position).
E. 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.
R51™and R51LXP
WARNING
CAUTION
FIGURE 12.1 Adjusting Forks
54
Dust Cover
Locknut
Nylon Washer
Caster Headtube
Fork
Caster
Part No. 1106645