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+44 (0)1753 549 360
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Crossply and Radial Tyres
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Tubes and rim bands, unless otherwise stated, must always be fitted to centre-lock wire wheels. Rim bands are used to protect the tube from catching on the nipples. A rim band should only be used in the rim well since nipples that are on the outer part of the rim will be covered by the tyre bead. Rim bands fitted outside of the rim well may interfere with the seating of the tyre bead.
MWS always recommends using rim bands instead of tape as they are more durable and less likely to be affected by varying conditions, however the following instructions include the application of rim tape.
When tyres are changed the tape on the wheels should be examined for adhesion, if this has reduced (it will manifest itself by crimpling) it must be replaced according to the following procedures:
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remove the damaged tape completely
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carefully de-grease around the rim well circumference
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seat one circumferential length of 1½" wide tape uniformly to cover all of the nipple heads
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ensure that the tape is smooth and has adhered firmly around the whole circumference, if it has not then remove all tape and start again
MWS recommends fitting new rim bands (or as a minimum new tape) whenever a tyre is fitted or replaced. If rim bands are to be reused their condition must be checked by a tyre fitter with experience of wire wheels.
The tube, the inside of the tyre and the inside of the wheel rim must be wiped clean and free of any foreign material such as quality check labels, dirt, gravel, sand, wood chips or metal shavings. If the tube is not french chalked and mounted correctly it may crease or be unevenly distributed causing fatigue and premature failure.
Thoroughly lubricate the tyre beads with a commercial lubricant. The first tyre bead should be mounted over the rim flange nearest to the rim well, which is usually closest to the "face" or "outside" of the wheel. The bead will fall into the well. Please note that in some cases the wheel and tyre may need to be fitted upside down.
Chalk the tube and insert it into the tyre ensuring that the valve stem is aligned with the rim hole. Care should be taken to avoid any pinching of the tube between the tyre and the rim. Also ensure that the valve stem lies square with the rim. Confirm that the valve core is fitted and then inflate the tube until it is nearly rounded out.
Completely deflate the tube by removing the valve core or by using a deflating tool (do not use a vacuum) and then mount the second tyre bead. Make certain that the tyre and tube are in the correct position and centred on the rim before inflating. Inflate the tyre until the beads are fully seated ensuring that the maximum tyre pressure is not exceeded. The maximum tyre pressure can be found on the side wall of the tyre and is normally 40 PSI.
Completely deflate the tube by removing the valve core or by using a deflating tool (do not use a vacuum). Refit the valve core and reinflate the tyre to the appropriate pressure, fitting the dust cap to keep the valve core free from dirt. The wheel should then be balanced.
Place the wheels onto the hubs and check that the wheel and tyre do not foul any part of the body or suspension etc. on both front and rear hubs. This is especially important if anything other than standard equipment is being used. Also check under full load, lock and bump conditions.
Bibendum wheels
Michelin Bibendum wheels are fitted using a similar technique to other well based rims. The only difference is that the fitting must start from a particular part of the wheel. As the well is only around half of the rim, the starting point must be located about six inches before the well starts.
MWS recommends that tyres are always fitted by professionals who have the required equipment and experience. |
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UK Sales: 01753 549 360
UK Fax: 01753 547 170 | | Export Sales: +44 (0) 1753 598 382
| | Motor Wheel Service International Ltd, Units 1-4 Elder Way, Waterside Drive, Langley, Slough, Berkshire, SL3 6EP, UK |
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