Adjusting Forks; Replacing Forks - Invacare Pronto M41 Owner's Manual

SECTION 10—SHROUD AND WHEELS

Adjusting Forks

NOTE: For this procedure, refer to FIGURE 10.4.
1. Remove the dust cover.
2. To properly tighten caster journal system and guard against flutter, perform the
following check:
A. Tip back the wheelchair.
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 locknut according to freedom of caster swing.
3. Test wheelchair for maneuverability.
4. Readjust locknut if necessary, and repeat STEPS 2‐3 until correct.
5. Snap dust cover into the caster headtube.
NOTE: Components exploded for clarity. There is no need to remove the fork from the base frame.

Replacing Forks

NOTE: For this procedure, refer to FIGURE 10.4 on page 52.
NOTE: Front and rear caster assemblies are replaced in the same manner.
NOTE: When replacing the front/rear caster assemblies, it is necessary to brace the caster
assemblies to prevent the wheel from spinning.
1. Remove the caster from the existing fork. Refer to Removing/Installing Casters on
page 51.
2. Remove the head tube cap.
3. Remove the locknut and washer.
Pronto® M41 with SureStep®
Washer
Fork
FIGURE 10.4 Adjusting Forks
Headtube Cap
Locknut
Caster
Headtube
52
Part No. 1143206