Invacare M41SR16R Owners Manual - Page 53

SECTION 11-SHROUD AND WHEELS Removing 1. Remove the mounting screw, two spacers and locknut that secure the existing caster to the fork. 2. Remove the existing caster from the fork. Installing 1. Position the new/existing caster into the fork. 2. Reinstall the mounting screw, two spacers and locknut. Securely tighten. 3. Torque locknut to 10 ft‐lbs (120 in‐lbs). 4. Loosen the locknut 1/8 of a turn. 5. Move the caster side to side. NOTE: If the caster moves side to side, tighten the locknut slightly. Repeat STEP 4 until there is no side to side movement of the caster. Fork Mounting Screw Locknut Spacer Spacer Caster FIGURE 11.3 Removing/Installing Casters Adjusting Forks NOTE: For this procedure, refer to FIGURE 11.4. 1. Remove the headtube cap. 2. To properly tighten caster assembly 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 (casters should swing once to one‐side, then immediately rest in a straight downward position). D. Adjust locknut according to freedom of caster swing. E. Test wheelchair for maneuverability. F. Readjust locknut if necessary, and repeat STEPS 2‐3 until correct. G. Replace headtube cap. NOTE: Components exploded for clarity. There is no need to remove the fork from the base frame. Washer Fork Headtube Cap Locknut Headtube Spacer Caster FIGURE 11.4 Adjusting Forks Part No. 1143206 53 Pronto® M41 with SureStep®