18
3.10.2 Replacing the indented belt
When replacing the indented belt, the mutual position of the pulleys (4
and 5) should be maintained.
Caution! Danger of injury!
Switch off the main switch! Before starting the setting
operation, wait until the motor stops!
- Remove the handwheel, the belt guard and the V-belt.
- Mark with a pencil the instantaneous position of the indented pulleys
against the machine head in any position.
- Loosen the tensioning roller (2)
- Remove the indented belt (3) from the bottom indented pulley
(4) first, and then remove the whole belt.
- Apply a new indented belt on the top indented pulley (5) first.
- Turn both indented pulleys in the formerly marked positions and
apply the indented belt on the indented pulley (4).
- Tension the belt and mount the dismantled components in the inverse
order.
3.11 V-belt, motor - head
3.11.1
Tensioning
Caution! Danger of injury!
Switch off the main switch! Before starting the setting
operation, wait until the motor stops!
The belt is correctly tensioned, when the opposite sides of the belt
approach one to another by up to 20 mm in applying the force of 10 N.
The belt is tensioned in turning respectively the motor in its holder.
3.11.2
Replacing the V-Belt
Caution! Danger of injury!
Switch off the main switch! before starting the
setting operation, wait until the motor stops!
- Unscrew the screws (3) of the handwheel and dismantle it.
- Unscrew the screws (4) of the belt guard and tilt the guard.
- Remove the belt guard of the motor and tilt the protections against
falling out the belt from the motor pulley.
- Replace the belt.
- Tension the belt (see par. 3.11.1).
4
5
2
3
10 N
l - 20mm
10 N
4
3
