Fransgard SV-2500SE, Manual, Page: 7 / 12

5
Power transfer
Poor power transfer may be due to:
a. Fitting the belt drive incorrectly.
b. Dirt, oil, grease, paint and rust on belts and pulleys. Oil and grease on the discs can be
washed off with mineral spirits, benzene, trichlorethylene, tetra chlorocarbon and the like.
Oil and grease on ordinary V-belts will eventually dissolve the rubber. Wipe the straps with
a clean cloth, possibly with a little turpentine or similar.
Paint and rust on the pulley can be removed with emery cloth. The disc should preferably
rotate, possibly clamped in a lathe during trimming.
c.
The belts / pulleys are worn so that the belts go to the bottom of the tracks. If the pulley
is shiny in the track bottom, this is probably the problem.
d. The belt record has been damaged due to:
Tightening of the belts.
New and used belts in the same pull or attachment with a screwdriver.
New belts should not be used in sets with used ones, as the results is that the new belts
wear quickly due to uneven distribution of the load.
The belt must never be forced over the pulleys, e.g., application with screwdriver. Instead,
the centre distance is reduced or the tension roller is relaxed so that the belt can be applied
by hand.
Storage of belt drive.
When machines are left for a long time with tightened belt drives and in a humid environment,
the following happens:
a. The pulleys rust and cause: That the belt wears up due to rust.
b. The belts are shaped according to the discs and at start-up may run with the inside out or
burst.
c. The bearing may be damaged due to the tightening.
It is therefore approprierede:
To remove the straps and put them in a dry and cool place. When hanging, this must be done
on a bow or similar, never on a nail.
To rust protect the pulley with special grease or oil.
Correct in-correct