13
CHANGES AND T YPING ERRORS RESERVED
CHANGES AND T YPING ERRORS RESERVED
9. T
roubleshooTing
Problem
Possible cause
Possible solution
Too much noise
Wrong belt tension
Adjust tension
Spindle not lubricated
Remove spindle quill and lubricate
Pulley loose
Tighten pulley
V-belt loose
Adjust belt tension
Worn bearing
Exchange bearing
Play of the chuck
Drill chuck loose
Tighten by pressing chuck against table
Worn spindle shaft or bearing
Replace spindle shaft or bearing
Worn drill chuck
Replace drill chuck
Motor won't start
Power supply
Check power cord
Motor connections
Check motor connections
Switch connections
Check switch connections
Motor windings burned
Replace motor windings
Switch broken
Replace switch
Drill binds in work piece
Excessive pressure on feed handle
Apply less pressure
V-belt loose
Check belt tension
Drill chuck loose
Tighten drill with key
Speed too high
Adjust speed
Drill burns or smokes
Wrong speed
Check speed table
Chips not discharging
Clean drill
Dull drill
Check sharpness and taper
Needs lubrication
Lubricate during drilling
Wrong feed
Apply less pressure
Table difficult to raise
Needs lubrication
Lubricate with a little oil
Bent rack
Straighten
Clamp bolt locked
Loosen clamp bolt
