Invacare M91-TS Owners Manual - Page 101
Adjusting Forks
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8.13Adjusting Forks For this procedure, refer to FIGURE 9. This procedure must be performed by a qualified technician. This procedure applies to both Forks. 1. Remove the dust cover. 2. To properly tighten caster journal system and guard against flutter, perform the following check: A. Tip the wheelchair forward, toward the floor. 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 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 the dust cover into the caster headtube ensuring that the tabs are under the side shroud. Base Frame Side Shroud Fork 8 SETUP/MAINTENANCE Tabs Dust Cover Locknut Washer Caster Headtube FIGURE 9 Adjusting Forks Part No 1143153 101 Invacare® Pronto® M91™