ASTEL MT-800 Instructions d'exploitation télécharger pdf (Page 20)

NY VEHICLE BEARINGS

As can be seen on the drawing below, this mounting is constructed differently from

the other vehicle bearing kits before, and therefore needs slightly different fitting.

There is no Teflon bearing, as the mast itself makes no contact with the roof bearing

or tapping plate. Rotation is supported and guided by the mast-clamping shroud,

which fits snugly over the bearing and is lubricated with grease through the nipple

provided.

Because the tolerance between the machined parts is critical, greater care must be

taken to ensure that the base plate is placed with complete accuracy so that the mast

is perfectly vertical. It is also very important that the roof surface and bearing are

exactly horizontal otherwise rotation will not be smooth.

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ASTEL MT-800 Instructions d'exploitation Page 20