General International DP2006 Manuel D'installation Et D'utilisation page 22

TROUBLEShOOTING
PROBLEM
operation is noisy under load
excessive runout
Motor will not start
Drill bit binds in material
Drill bit burns or smokes in material
Quill returns too slowly or with too much
force
Table raises with difficulty
excessive tearout on underside
Drill bit veers off hole
NOTE: SERVICE AND REPAIRS should be made by qualified repair
technicians at an authorized repair center. Improperly repaired tools could
cause serious shock or injury.
NOTE: REPLACEMENT PARTS. When servicing, use only the
manufacturer's recommended replacement dentical replacement parts
and accessories.
22
POSSIBLE CAUSE
improper belt tension
Dry spindle
Loose pulley
Bent drill bit
Drill bit is improperly mounted in chuck
chuck is loose
Damaged bearings or spindle
chuck is loose
Power supply is faulty
Problem with motor connection
Faulty switch
Motor windings burned
too much feed pressure
Belts are slipping
Loose drill bit
Drilling speed is wrong
Drill angle or bit type is wrong for material check material information and handling
Workpiece moves during drilling
Wrong speed for material and hole size
chips are not being evacuated from hole
Dull bit or incorrect clearance
needs coolant
Feed is too slow
Quill return spring is improperly adjusted
Dust on or in quill assembly
Lack of lubrication
table lock is tightened
too much feed pressure
no backing material
Hard grain in wood
Bent drill bit
too much force
SOLUTION
Adjust tension
remove and oil spindle / quill assembly
check and tighten pulley attachments or
set screws
replace drill bit
check that chuck holds bit cleanly
Clean chuck / spindle joint
retighten chuck- press down with chuck
against wooden block on table
replace spindle shaft or bearing
replace chuck
check power cord
check connections to motor
replace
replace motor
Less force on feed handles
check belt tension
tighten chuck correctly
refer to speed table
instruction
Properly support or clamp workpiece
refer to speed table
clean the drill bit
replace or sharpen bit
use coolant
increase speed at feed handles
Adjust tension
clean and lubricate
apply a light oil
Loosen table lock handle
Less force on feed handles
use another piece of scrap material as
backing
Lubricate drill bit
replace
use a lower feed speed