Theory On The Use Of Belts; Why Is It So Important To Use Genuine Belts Supplied By Authorized Vendors - Stiga PARK 120 2016 Workshop Manual

Edition Workshop Manual
2016 PARK 120 - PARK 220
5.1

Theory on the use of belts

5.1.1

Why is it so important to use genuine belts supplied by authorized vendors?

The table below shows the specifications for commercially available belts compared to the
requisites of genuine belts supplied by an authorized vendor. The latter are designed and
made with close collaboration between the belt supplier and the machine manufacturer.
The table is to help you understand the importance of using genuine belts.
Example
Fitting on the pulley.
Acceleration.
Length
Commercially
available belts
The belt rests its
sloping sides against
the walls of the
pulley. There must
be a gap between
the belt and the
bottom of the
groove.
Some belts slot into
the pulleys only
when the engine is
running at operating
speed and this
generates excessive
heat.
Made with standard
length pitch.
Genuine spare
belts
The belt rests its
sloping sides against
the walls of the
pulley. There must
be a gap between
the belt and the
bottom of the
groove.
The belt follows
the engine speed
in continuous
acceleration until the
maximum speed is
reached.
Made to a specified
length designed to fit
the pulley perfectly.
Chapter
5 Belts
Notes
Same requirements.
Genuine spare belts
ensure a perfect fit
on the pulley.
Ordinary belts are
made from natural
rubber which can
only withstand
temperatures of up
to 70°C.
Genuine spare
belts are made from
chloroprene rubber
which can withstand
temperatures of up
to 90°C.
The distance
between pulleys is
fixed. The tensioner
ensures that the
genuine belt has the
optimum tension.
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