Malfunctions - Femi job Line DP 12-942 PRO DISPLAY Manual Del Usuario

12. Malfunctions

FAULT
The motors do not start
Noisy operation
Drill bit burns
Excessive vibrations
Quill returns too slow or too
fast
Chuck will not stay attached
to shaft. It falls off when trying
to install it
INSTRUCTION MANUAL - TRANSLATION OF ORIGINAL INSTRUCTIONS
CAUSE
▪ No power supply voltage.
▪ Disconnecting devices set to "OFF".
▪ One or more emergency/safety
systems enabled.
▪ Triggered fuse or faulty circuit
breakers.
▪ Malfunction of buttons.
▪ Incorrect belt tensioning.
▪ Dry shaft.
▪ Loose chuck pulley.
▪ Loose motor pulley.
▪ Incorrect speed
▪ Chips not coming out of hole
▪ Dull drill bit
▪ Feeding too slow
▪ Drill bit not lubricated
▪ Worn shaft bearings
▪ Drill bit not correctly installed in the
chuck
▪ Chuck not correctly assembled
▪ Spring has improper tension
▪ Dirt or oil on the tapered inside surface
of chuck or shaft
INTERVENTION
▪ Check and restore power supply.
▪ Turn the disconnecting devices "ON".
▪ Reset the emergency systems and
check their efficiency.
▪ Replace the triggered fuses and check
the condition of the circuit breakers.
▪ Check efficiency of the START
buttons.
▪ Adjust tensioning.
▪ Lubricate the shaft.
▪ Check tightness of retaining nut on
pulley.
▪ Tighten setscrews in pulleys.
▪ Change speed.
▪ Retract drill bit frequently to clear
chips.
▪ Sharpen the drill bit.
▪ Increase feeding speed.
▪ Lubricate the drill bit.
▪ Replace bearings.
▪ Install drill bit correctly.
▪ Install the chuck correctly.
▪ Adjust spring tension.
▪ Using a household detergent, clean
the tapered surfaces of the chuck and
shaft to remove all dirt, grease and oil.
English ▪ 31