Bomar Ergonomic 320.250 DG, Operating Instructions Manual

Page: 62 / 115

62 Manual version: 1.02 / Mar. 2010
Manual rev.: 1
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Problem Possible causes Repair
- Worn saw band guide bearings. Check guiding bearings and if you notice some
sort of excessive damage, replace them
according to chapter„Worn pieces replacement“
- Wrongly adjusted guiding cubes of the
saw band. Set guiding cube according to chapter „Servicing
and adjustment“
- Wrongly adjusted down feed and saw
band speed. Adjust the feeding and speed of a saw band
according to values published by saw band
manufacturer.
- Different material quality. Adjust feeding and speed of a saw band
according to desired material (try cut-test).
- Low-class saw band Replace the saw band (contact your local
accessory supplier for more information)
- Wrongly chosen saw band tooth
system. Replace the saw band and keep instructions of
the manufacturer on the choice.
- Wrongly adjusted tracking. Check the space between top of a saw band and
driving wheel. Perhaps adjust the tracking as
described in chapter „Servicing and adjustment“
4. Insufficient cut
output.
- Worn saw band. Replace the saw band and keep instructions of
the manufacturer on the choice.
- Wrong saw band tooth system. Replace the saw band and keep instructions of
the manufacturer on the choice.
- Wrongly set down feed and speed of a
saw band. Set feed and speed of a saw band according to
values published by saw band manufacturer.
5. The cut is not finished.
- Wrongly adjusted lower stop point of
the saw frame. Check lower limit switch and screw.
- Stop point surface is messed-up. Cleanse stop point surface of the limit switch
from debris and residue material.
6. By choke is not
possible turn
- Metal clamps between valve and panel. Clamps must be removed and put on the shaft O-
Ring about 10x2 mm.
- Metal clams are in body of valve. Valve must be cleared or changed.
7. Saw band drive
cannot be started.
- Pressure switch is adjusted wrong. Set the pressure switch according to chapter
„Servicing and adjustment“
- Pressure switch is defective. Replace defective parts of the pressure switch.
8. The saw bands are
cracked.
- In stretching wheel is wrong adjusting
geometry. Adjust distance band from recess wheel c.2 mm
according to operating instructions.
- Hard metal plates of circuit saw band
are not adjusting. Hard metal plates of circuit saw band must be
adjusting according to operating instructions.
- Guiding cubes are not adjusting
(be hard metal circuit) Guiding cubes must be adjusting (be
hard metal circuit) according to operating
instructions.
- Bearings of guiding cubes are used
(rolling elements are damaged or
outside ring of bearing has conical
form). Bearings of guiding cubes must be replaced.
Bearings must be adjusting according to
operating instructions.
9. Damage tooth system
of the saw band
- In gripping the lifting cylinder is
backlash.
- Squeezed pin upper or downer holder
of the lifting cylinder. Exchange complete upper or downer holder of
lifting cylinder.
10. The saw is cut
downing.
- Geometry of hardmetal guiding cubes is
wrong adjusted. Hardmetal guiding cubes must be adjusted.
- Bearings of guiding cubes are used. Bearings of guiding cubes must be replaced.
11. Cleansing of the saw
band is not functional.
- Elastic wheel of the brush drive is worn-
down. Elastic wheel of the brush must be changed.
- Knurling of the driving wheel is worn-
down. Driving wheel must be changed.
- The shaft of the brush drive is rusted. The shaft of the brush must be cleaned and oiled.