Adjusting Caster Assembly - Invacare Pronto M91 Service Manual

SECTION 8—WHEELS

Adjusting Caster Assembly

NOTE: For this procedure, refer to FIGURE 8.2.
1. Lift front edge of the dust cover up and remove from head tube.
2. To properly tighten caster assembly and guard against flutter, perform the following
check:
NOTE: Two people are recommended to perform this STEP ‐ one to tip wheelchair back and one to
inspect/adjust the caster assembly.
A. Tip back the wheelchair.
B. Pivot both caster assemblies to top of their arc simultaneously.
C. Let casters drop to bottom of arc (casters should swing once to on ‐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 2‐3 until correct.
5. Snap dust cover into the caster headtube, ensuring that the tabs are under the plastic
side shrouds.
®
Pronto M91™and M94™
Tabs
Dust Cover (Front Edge)
Fork
NOTE: Components
exploded for clarity. There
is no need to remove the
fork from the base frame.
FIGURE 8.2 Adjusting Caster Assembly
82
Locknut
Washer
Head Tube
Washer
Part No. 1125038