Invacare 4V66FFR Owners Manual - Page 34
Adjusting Front Forks/Caster, Replacing Front Caster
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5.10 Adjusting Front Forks/Caster 1. To properly tighten caster journal system and guard against flutter, perform the following check: a. Tip back of wheelchair to floor. b. Pivot both forks and casters A 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 B according to freedom of caster swing. e. Repeat steps C - D until wheels swing once to one-side, then IMMEDIATELY rest in a downward position. 2. Test wheelchair for maneuverability. 3. Readjust locknuts if necessary, and repeat STEPS 1-2 until correct. 4. Snap dust cover C over the locknut and stem. Service 5.11 Replacing Front Caster WARNING! - Make sure both casters are the same size before using the wheelchair, otherwise injury may occur. If replacing the same size front caster, note the mounting position on the fork assembly for proper reinstallation of the new front caster. 1. Remove the hex screw A, washers B and locknut C that secure the front caster D to the fork E. Washers are only used with 8 inch casters with precision bearings. 2. To reinstall the new front caster onto the fork, reverse STEP 1. C E A B B D 1567855-C 33