plies showing is cause for replacement common to see it not done, or done –Any –Most sidewall damage is cause for scrapping statically on small G/A –Any the tire tire should be balanced dynamically with a –Any Aircraft Tires computerized spin balancer weather checking is not cause for for tire to stretch initially prior to –Small –Allow concern balancing (24 hours) aircraft once in a while to prevent Static Balance Stand –Move permanent tire set Selecting Balance Weight keep tire at proper inflation for the type Balancing Weights –Always of landing conducted Balance Weight for strips, softer for gravel or grass END OF SECTION –Harder strips Aircraft Tires wear is usually a camber problem –Corner wear and shifting weight at higher lighter –Rapid speeds is a toe in problem Tire Maintenance Nylon flat spotting: roll aircraft • Leaks: check with water • Replace all valve caps • injury: follow aircraft manufacturers’ • instructions Cuts exposing or penetrating cord body: • remove, repair, recap or scrap. Sidewall or bulges: remove, mark area • before deflation Schrader Valve Tire Deflection Markers Aircraft Jacking Jack per manufacturer’s directions • Use correct and jacks • Leave nothing under the aircraft in case it • drops Jack evenly • Locate aircraft out of high wind • Use caution for CG shift when jacking • need tail/nose weight –May May need several persons • Tailweight Mounting and Demounting Dust inside of tire and outside of tube with talc • Index tube valve stem • Assemble wheel correctly; use tire cage for • inflation Inflate, deflate and re-inflate tube-type tires • Tire Cage B747 Tire Rupture Tube Inspection Size tire • “should” Inflate no more than to tube • “round-out” Valve stem • Wrinkles: if excessive scrap • Chafing or thinning: scrap • Aircraft balancing –Tire
–Any plies showing is cause for replacement –Any sidewall damage is cause for scrapping the tire Aircraft Tires –Small weather checking is not cause for concern –Move aircraft once in a while to prevent permanent tire set –Always keep tire at proper inflation for the type of landing conducted –Harder for strips, softer for gravel or grass strips Aircraft Tires –Corner wear is usually a camber problem –Rapid wear and shifting weight at higher lighter speeds is a toe in problem Tire Maintenance • Nylon flat spotting: roll aircraft • Leaks: check with water • Replace all valve caps • injury: follow aircraft manufacturers’ instructions • Cuts exposing or penetrating cord body: remove, repair, recap or scrap. • Sidewall or bulges: remove, mark area before deflation Schrader Valve Tire Deflection Markers Aircraft Jacking • Jack per manufacturer’s directions • Use correct and jacks • Leave nothing under the aircraft in case it drops • Jack evenly • Locate aircraft out of high wind • Use caution for CG shift when jacking –May need tail/nose weight • May need several persons Tailweight Mounting and Demounting • Dust inside of tire and outside of tube with talc • Index tube valve stem • Assemble wheel correctly; use tire cage for inflation • Inflate, deflate and re-inflate tube-type tires Tire Cage B747 Tire Rupture Tube Inspection • Size “should” tire • Inflate no more than to “round-out” tube • Valve stem • Wrinkles: if excessive scrap • Chafing or thinning: scrap Aircraft –Tire balancing –Most common to see it not done, or done statically on small G/A –Any tire should be balanced dynamically with a computerized spin balancer –Allow for tire to stretch initially prior to balancing (24 hours) Static Balance Stand Selecting Balance Weight Balancing Weights Balance Weight END OF SECTION
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