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Rh far as they will turn without detaching them from the bolts, and push the latter upwards until the nuts meet the rim.

The beaded edge of the tyre should then be forced inwards all round the rim by the left hand, the right hand assisting the operation by inserting the point of one of the levers. Then moisten the blade of each lever to make it glide more easily on the rubber. Take hold of the cover, as in fig. 3, with the left hand, at a point between two winged nuts, and not near the valve. Push forwards with the palm of the hand and the thumb, and simultaneously, having inserted a lever, work it downwards with a laterally oscillating movement until it assumes the position shown in fig. 3. Depress the haft until the blade is horizontal, and then slowly work the point again

with a sideway oscillation, until the opposite edge is reached, as in fig. 4. Still holding this lever firmly, insert the other at a point from ten to fourteen inches away, according to the size of the wheel; roundly speaking, the distance between the levers should be a third of the diameter of the rim. Avoid, however, placing either lever near the valve or one of the winged nuts.

Having worked the second lever forwards in like manner to the first (see fig. 5) depress the hands towards the hub (see fig. 6). This should bring the beaded edge right over the rim; if the movement fails the levers are too far apart, or if the edge comes over but slips back again they are too close. The remainder of the cover may be detached with the hands alone in the case of a voiturette tyre, but otherwise the right-hand lever must be re-inserted six inches further down, and again