Palmgren TU 2506, Operating Manual

Page: 39 / 98

Page 39
TU2506
ǀ
TU2807V US
4.8.1 Changing the speed range

Loosen the nut on the
tension pulley holder and
release the tension of the V-
belt.

Install the V-belt into the
corresponding position.
Fig.4-5: Tension pulley TU2506V

Depending on the speed selected, the V-belt will have to be lifted directly onto the motor
pulley or onto the pulley of the primary transmission. Handle the V-belt with care. It must not
be damaged or overstretched.

Tighten the tension pulley and fasten the nut again.

The correct tension of the synchronous belt has been reached when you can still bend it
approximately 3 mm with your index finger.
ATTENTION!
Make sure the tension pulley is in contact with the outside of the V-belt at all times!
Make sure the tension of the V-belt is correct. Excessive or insufficient tension can
cause damage to the bearings and belt itself.
4.8.2 Speed table TU2506
4.8.3 Speed table TU2807V
Tension pulley holder
V-belt
Tension pulley
Pulleys of primary
transmission
Motor pulley