27
B
A
C
MB3196-EN
Replacing pneumatic tyres
Figure 41
Pneumatic tyres are an accessory
Removing the tyre
• Remove the wheel, then deflate the
tyre by depressing the little pin in the
valve or unscrewing the valve.
• Ensure that the edge of the tyre sits
well down in the internal depression of
the wheel rim (41A).
• Bend the edge of the tyre over the
rim. Use a special tyre lever (41B) if
necessary. Take care to ensure that
the tube does not become pinched
between the lever and the rim.
Fitting the tyre
•
Put the tube into the new tyre and
apply a friction-reducing agent (tyre-
fitting lubricant or soap) on the edge of
the tyre (41C).
• Ensure that the edge of the tyre sits
well down in the depression of the
wheel rim on one side. Bend the
tyre over the rim edge. Take care to
ensure that the tube does not become
pinched.
• Inflate to the correct pressure and fit
the wheel to the chair.
Figure 41
Maintenance
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