jet promac SX-823DGVI Gebrauchsanleitung Seite 21

FAULT
Tooth Breakage
FAULT
Premature blade wear
PROBABLE CAUSE
Wrong tooth pitch or shape
Insufficient lubricating, refrigerant,
or wrong emulsion
Teeth positioned in the
direction opposite the cutting
direction
PROBABLE CAUSE
Faulty running-in of blade
Teeth positioned in the
direction opposite the cutting
direction
Poor quality blade
Too fast advance
Wrong cutting speed
Defects on the material or material
too hard
Insufficient lubricating refrigerant
or wrong emulsion
19
REMEDY
Replace blade with a more suitable
one. See "Material classification and
blade selection" in the Blade Types
section. Adjust blade guide pads.
Check level of liquid in the tank.
Increase the flow of lubricating
refrigerant, checking that the hole and
the liquid outlet pipe are not blocked.
Check the emulsion percentage.
Turn teeth to correct direction
REMEDY
See "Material classification and blade
selection" in the Blade running-in
section.
Turn teeth in correct direction.
Use a superior quality blade.
Decrease advance, exerting less cutting
pressure. Adjust the braking device.
Change speed and/or type of blade.
See chapter on "Material classification
and blade selection," in the section
Blade selection table according to
cutting and feed speed.
Material surfaces can be oxidized or
covered with impurities making them,
at the beginning of the cut, harder that
the blade itself, or have hardened
areas or inclusions inside the section
due to productive agents used such as
casting sand, welding wastes, etc.
Avoid cutting these materials or
perform cutting with extreme care,
cleaning and remove such impurities
as quickly as possible.
Check level of liquid in the tank.
Increase the flow of lubricating coolant,
checking that the coolant nozzle and
pipe are not blocked. Check the
emulsion percentage.