Less surface contact with belt.
Crown is provided so that the belt should remain in the centre of pully rim. In the absence of crown the belt will slip sideways. - Deepak
when actual flow(Qact) in pump is greater than theoretical flow (Qth) then negative slip occurs....
the friction causes the plates to slip ;) in more ways than others :p
it occurs along a transform boundary
The answer is Strike-Slip Fault.
There is a belt tensioner (Drive pulley) on top of the serpentine belt, That is the only thing holding the belt tight. Use a wrench or vice grips or socket to hold the pully bolt and lift up, (CAUTION) the pully is spring loaded and if not careful will cause injury if fingers are anywhere near it if it slips out of your grip. Just raise the pully up and the belt will come loose, after you get the belt off, you just slip the new belt on the same way you took off the old one. (NOTE) once the belt is on release the pully so that the belt is tight but make sure that the belt is on the ac pully, the power steering pully then the fan pully then the drive (crank shaft) pully then the alt pully and that is all. good luck. also you can click here for the diagram of the serpentine belt diagram. http://www.fixya.com/cars/t1940043-digram_serpitine_belt_1992_oldsmobile The diagram is for an 1992 Oldsmobile but that is the same as the 1994 ford e-150
The thead on the pully bolt is reversed. Pulling on it with a spanner in the anticlockwise direction will lock up the thread and reduce tension on the pully arm but its spring loaded so you need a friend to help or one hand free to slip the belt off while your holding the pulley back.
wrap the belt around the pully to hold pully still
A pole slip occurs when a motor or generator cannot maintain synchronicity. This occurs because the field excitation is too low.
Strike slip faults display horizontal or "sideways" deformation.
The answer is Strike-Slip Fault.
A pully is used to lift thing depending on how big the obJect is