GD-450-525-INS-LAB-RevA21 • Regency 450 / 525 User Manual
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CHECK CASTERS
Check the caster stems for proper rotation at least every three months. The caster forks must
swivel freely to facilitate steering and handling. Adjusting the stem nut varies the amount of force
required to turn the caster. If the nut is too loose, the caster will flutter or shimmy; if too tight, the
wheelchair will be difficult to steer. If the caster stems require adjustment, or the stem bearings
require replacement, contact your Graham-Field authorized distributor. Ensure that stems are
firmly attached to forks, and that forks and stems are not bent. Evaluate all threads, locking nuts
and bearings.
CHECK WHEEL BEARINGS
Have your Graham-Field authorized distributor check caster and rear wheel axle bearings at least
every six months.
