Dake Model Zip 30 - Manual (Page 24)

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ZIP 30 - MUL ZIP 30 - MUL ZIP 30 - MUL ZIP 30 - MUL ZIP 30 - MULTI MODE TI MODE TI MODE TI MODE TI MODE
TROUBLESHOOTING
This chapter lists the probable faults and malfunctions that could occur while the machine is being used and suggests possible
remedies for solving them.
The first paragraph provides diagnosis for TOOLS and CUTS, the second for ELECTRICAL COMPONENTS.
12.1 - Blade and cut diagnosis
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FAULT PROBABLE CAUSE REMEDY
TOOTH BREAKAGE 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.
Choose a suitable blade. See Chapter
“Material classification and blade se-
lection”.
Check for clogging of cooling liquid drain
holes on the blade-guide blocks and that
flow is plentiful in order to facilitate the
removal of chips from the blade.
Material surfaces can be oxidised or cov-
ered with impurities making them, at the
beginning of the cut, harder that the blade
itself, or have hardened areas or inclu-
sions inside the section due to produc-
tive agents used such as casting sand,
welding wastes, etc. Avoid cutting these
materials or in any case perform cutting
with extreme care, cleaning and remov-
ing such impurities as quickly as possi-
ble.
Check the gripping of the part.
Reduce feed and exert less cutting pres-
sure.
Pay more attention when you start cut-
ting.
Use a superior quality blade.
Accurately remove all the parts left in.
Make the cut elsewhere, turning the part.
Check gripping of the part.
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, check-
ing that the hole and the liquid outlet pipe
are not blocked.
Check the emulsion percentage.
Turn teeth in correct direction.
Too fast advance
Wrong cutting speed
Wrong tooth pitch
Chips sticking onto teeth and in the
gullets or material that gums
Defects on the material or material too
hard
Ineffective gripping of the part in the
vice
The blade gets stuck in the material
Starting cut on sharp or irregular sec-
tion bars
Poor quality blade
Previously broken tooth left in the cut
Cutting resumed on a groove made
previously
Vibrations
Wrong tooth pitch or shape
Insufficient lubricating refrigerant or
wrong emulsion
Teeth positioned in the direction op-
posite the cutting direction