Operating Instructions
2-45TDC
Maintenance
6
7.4 Belts
The belt drive is designed for the required drive power. Forcing the
drive to grant a higher output by overtensioning the belt results in belt
breaks, bearing damage and thus to lower efficiency. A low belt
tension results in slippage causing an increased belt temperature and
thus to premature destruction of the belts. Temperatures exceeding
70°C for a long period of time reduce the service life and performance
of the belts. The grooves of the belt pulleys have to be free from rust,
grease, dirt and damages. The use of belt wax or similar substances
to increase the friction coefficient is unnecessary and damages the
belts. Avoid any contaminations by oil, grease or chemicals.
In order to grant a perfect output transmission, the belt drive must be
observed continuously.
7.5 Fitting the belts
Remove the belt guards only when the driving motors are in
standstill and the main switch of the machine is secured.
Release the tension of the belt drive by reducing the distance
between both shafts.
Insert the belt in the belt pulley grooves manually without forcing the
belt.
Tension the belt by increasing the distance between the shafts of as
described below.
Mount the pertaining protective drive equipment.
