BA_PH_436-100_EN_44-21.docx
44
15.4
Readjust the Motor Brake
If the machine no longer comes to a standstill within 10 seconds
when braking, the motor brake must be adjusted.
Switch off the machine during maintenance and repair
work and secure it against being switched on again
unexpectedly! Lock the main switch with a padlock!
Procedure:
•
Turn the main switch (
1)
to position “
0
”
and lock it.
•
A socket spanner SW 17 is required for adjustment.
•
Put the socket spanner on the adjusting nut (
Figure 52) and
adjust it clockwise by approx. 1/8 turn.
Figure 52: Readjusting the motor brake
15.4.1
Check the Adjustment
•
Before checking the adjustment, make sure that the belt is well tensioned (see
•
Then unlock the main switch (1) again and switch it on (position
“
I
”
)
•
Turn the brake release switch to
the “
Break Released
” position
.
→
It must now be possible to move the V-belt pulley by hand. By turning it, you can now check whether
the brake is dragging, which means that it has been adjusted too excessively.
→
If the brake is dragging, the readjustment made must be minimally reversed again.
Danger of cutting! Wear protective gloves when handling the cutter head!
•
Now turn the brake release switch back to
“
Normal Operation
”
.
•
Start the cutter head and wait until the machine has reached full speed.
•
Then switch off the machine and check the braking time to standstill.
•
If the braking time is still over 10 seconds, repeat the adjustment procedure (see section
and check the adjustment again.
•
If the adjustment was not successful, please contact the customer service of the manufacturer.
If rattling noises occur in the area of the fan blade when turning the motor, please contact cus-
tomer service. Possibly the brake lining is worn out.
15.4.2
Replace Motor Break
If the previously described adjustment of the motor brake was not successful, the motor brake must be replaced.
First make a note of the type designation and other information on the nameplate of your motor. Then contact
our customer service (telephone 0049 - 7571 / 755 - 0) to order a suitable new brake.