Instruction manual

TYRE REMOVAL

It is not essential to remove a wheel from the machine to repair a puncture but it will

usually be found desirable and more convenient to do so.

Take off outer cover and remove inner tube by :

Remove cap from tyre valve.

Remove nut from tyre valve.

Remove the " inside " from tyre valve. This allows inner tube to deflate. Most valve

caps have a reduced and slotted top to engage with the valve " inside " in order to

unscrew it.

Push edge of cover, that is diametrically opposite to the valve, RIGHT INTO WELL

OF RIM and, using tyre levers 017007, pick up edge of cover NEAR VALVE so

that it comes off over the edge of the rim.

Work off the remaining edge of the cover till it is clear of the rim. This is quite easy

and there is no reason to use force.

Push upwards valve stem through its hole in the rim, and the inner tube is then free

to be taken away.

Remove cover from rim by pushing it right into well of rim and, diametrically opposite,

picking it up with the tyre lever and then working it off all the way round.

TYRE FITTING

Re-fit inner tube and outer cover by :

Place one edge of cover right into well of rim, with the three white dots on the cover side

adjacent to the valve hole, and, commencing diametrically opposite, and using the

hands only, work the cover over the edge of the rim.

Replace the valve " inside "and slightly inflate the inner tube. (Do not distend the tube.)

Fit the valve into its hole in the rim and replace its nut, only screwing it on the valve

stem about half an inch.

Tuck in the inner tube so that it lies snugly in the cover. Ensure it is not twisted.

Smear some soapy water round the free edge of the cover. This is a great help in fitting

and in ensuring the cover centralises itself on the rim and should always be employed

if at all possible.

Introduce the free edge of the cover into the rim at the spot diametrically opposite to

the valve. Get this edge right into the well of the rim and then, by working round the

cover, equally on either side of the valve position, the cover will slip into place without

excessive exertion, fitting the part nearest to the valve last of all.

Slightly inflate the inner tube and inspect for the inner tube being trapped between the

outside edge of the cover and the rim at the spots where the valve is located.

Half inflate tyre, spin wheel and test for trueness because it is essential the pattern of the

tread runs evenly and the cover must be manipulated till that occurs. This centralisa-

tion of the cover is most important.

Inflate to required pressure.

Screw fully home the nut on the valve.

Replace the valve cap.