22
bona.com
Bona Belt Manual
Routine Maintenance (Cont.)
3)
Loosen the draw springs ½ turn on the wing nut.
4)
Grab hold of the suction head and pull it downward so that it
loosens from the control axle. Clean/scrape clean or if needed blow
the inside of the suction head clean using compressed air.
5)
If needed the suction head can be completely
removed by unscrewing the wing nuts from the
fan housing.
6)
Remount the suction head in reverse order after cleaning. Close the
drum cover and tilt the machine forward(see the instructions under
getting started).
Regularly clean the sanding drum, tensioning device, the hole for the tool and the machine wheel.
The driving belts should be adjusted now and then using the tensioning screw so that the sanding effect is not reduced. If the sanding
result still is unsatisfactory the belt tensioner device should be cleaned. Loosen the sanding drum; see the section “
Changing the sanding
drum
” on pages 19-20.
Loosen the three bolts that keep the belt tensioner device on the chassis and the aggregate can easily be removed from the machine frame.
Check regularly that the suction head is not filled with dust, varnish/paint, wood remnants, etc. and that the sealing brushes and whole and
function properly.
Do as follows:
1)
Tilt the machine backward (see the instructions
under getting started).
2)
Loosen the draw springs with the draw handle from the screws that
hold the suction head against the chassis.
