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REPAIRING/REPLACING
PNEUMATIC CASTER OR REAR
WHEEL TIRE/TUBE
WARNING
Replacement of a pneumatic tire or tube
MUST be performed by a qualified tech-
nician.
CAUTION
As with any vehicle, the wheels and tires
should be checked periodically for cracks
and wear, and should be replaced.
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REPLACING/ADJUSTING THE
WHEEL LOCK (FIGURE 6)
NOTE: Before adjusting or replacing the High/
Undermount wheel locks, ensure that the tires are inflated
to the recommended psi on the sidewall of the tire.
Replacing the High/Undermount Wheel Lock
1. Remove the hex screws and remove the existing
wheel lock from the wheelchair.
2. Install the new wheel lock and secure with the exist-
ing hex screws. Torque to 110-120 in./lbs.
Adjusting the High/Undermount Wheel Lock
1. Engage the wheel locks.
NOTE: Any wheel lock adjustment should embed the
wheel lock shoe at least 3/16-inch into the pneumatic tire
(1/8-inch for urethane wheels) when engaged.
2. If necessary, loosen the hex screw(s) that secure the
High/Undermount wheel locks to the wheelchair frame
and adjust position of the wheel lock until the 3/16-
inch (1/8-inch for urethane wheels) measurement is
obtained for correct wheel lock adjustment.
3. Torque the hex screw(s) to 110-120 in./lbs.
4. Engage the wheel locks and push against the wheel-
chair and determine if the wheel locks engage the
wheel locks enough to hold the wheelchair.
5. Repeat the above procedures until the wheel locks
hold the wheelchair.
3/16-inch
(1/8-inch)
3/16-inch
(1/8-inch)
Tire
Under
Mount
Wheel
Lock Shoe
Tire
High Mount
Wheel Lock
Shoe
FIGURE 6 - REPLACING/ADJUSTING THE
WHEEL LOCK
Hex Screws
High Mount Wheel Lock
PROCEDURE 7 REAR WHEELS
Under Mount
Wheel Lock
Hex Screws
HIGH MOUNT WHEEL LOCK
UNDER MOUNT WHEEL LOCK
WHEEL LOCK SHOE ENGAGEMENT