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10/19
TROUBLESHOOTING
PROBLEM
Noisy Operation
• Incorrect belt tension
• Dry spindle
• Loose pulley
• Loose belt
• Bad bearing
Excessive drill
• Loose chuck
wobble
• Worn spindle shaft or bearing
• Bad chuck
Motor won't start
• Power supply
• Motor connection
• Switch connections
• Motor windings burnt
• Bad switch
Drill binds in
• Excessive pressure on feed
workpiece
• Loose belt
• Loose drill
• Speed too fast
Drill burns or
• Incorrect speed – reduce RPM
smokes
• Fillings caught in drill bit
• Poor drilling
• Incorrect feed pressure
Table difficult to
• Needs lubrication
raise
• Bent rack
• Table lock too tight
POSSIBLE CAUSE
handle
Made in China to TQB Brands Pty Ltd specifications
Visit us at www.tqbbrands.com.au
REMEDY
• Adjust tension
• Remove spindle/quill assembly &
lubricate
• Tighten pulley
• Adjust belt tension
• Replace bearing
• Tighten by pressing chuck down against
table
• Replace spindle shaft or bearing
• Replace chuck
• Check power cord
• Check motor connections
• Check switch connections
• Replace motor
• Replace switch
• Apply less pressure
• Check belt tension
• Tighten drill with key
• Change speed
• Refer to RPM sheet
• Clean drill bit
• Sharpen drill bit or replace drill bit
• Apply less pressure
• Lubricate with a light oil
• Straighten rack
• Loosen clamp
CH30T
P a g e
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