Schwinn 26” User Manual page 44

Tires
Frequency: Inspect and maintain before each use
Inspect
Tire Inflation Check tire pressure
Check the bead is properly seated while
inflating or refitting the tire.
Spin wheel and check rotation / alignment
is smooth and even.
Bead Seating Check for broken or loose spokes
Tread Inspect for signs or excessive wear, flat spots
or cuts and damage.
Valves Check that valve caps are fitted and free
of dirt.
41
Action Maintenance
Inflate tire to the pressure indicated on the
tire sidewall. See "Inflating a Tire Tube" for
more detail. If the tire is flat see "Fixing a Flat
Tire" for more detail.
Reduce air pressure in the tube and re-seat
the bead.
Loosen axle nut(s) and adjust until properly
seated. If the Hub Bearings need repair
see Hub Bearings for more detail or bicycle
mechanic for repair.
See bicycle mechanic for repair.
Replace tire.
Clean dirt from the valve.