Heartway Medical Products S11 Zen User Manual page 22


Front & Rear wheels must be able to spin smoothly
without any interference

Rear & Front wheels must spin without wobbling

Visually inspect the tire tread. If less than 1mm
(1/32"), please have your tires replaced by your local
dealer.
Others

Motor brushes. We recommend that your authorized
dealer inspect the brushes every six-month if your
power scooter or power wheelchair is not operating
smoothly. If the inspection determines excessive
motor bushes worn out, they must be replaced
otherwise the motor damage will result.
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