Optimum OPTIDRILL B 17PRO Operating Manual page 45

Interval Where?
every six
months
every six
months
as required
Maintenance
Version 2.0.2 2014-11-04
What? How?

Check whether the V-belts have become porous and worn.
Visual inspec-
tion
Img.6-1: V-belt housing
Check the electrical equipment / parts of the drilling machine.

"Qualification of the staff" on page 11
Testing

Loosen both nuts on the spring housing, approximately 1/4
counter-clockwise rotation. Under no circumstances must
the nuts be completely removed from the screw thread!

Hold the spring housing with one hand, while using the
other hand to slowly remove the housing.

Rotate the spring housing about its own axis until the pin
snaps into the next notch.
Spindle return
spring
Img.6-2: Spindle return spring
INFORMATION
If the tension has increased, rotate the housing
clockwise and if the tension has decreased rotate
the housing counter-clockwise.
Ensure that the notch is always snapped into the
spring housing properly and subsequently tighten
the nut.
The second nut secures the first nut (capped nut).
When the nuts have been tightened they should not
touch the return spring housing.
Original operating instructions
OPTIMUM
M A S C H I N E N - G E R M A N Y
V-belt
Spring housing
Capped nut
Nut
B17Pro | B23Pro | B26Pro | B33Pro GB
Page 45