Grizzly G9909 - Manual (Page 7)

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Guidelines and Tips Maintenance
MAINTNENACE
G9909 3 ⁄
8
" Electric Hand Drill
Regular periodic maintenance on your
Model G9909 Electric Drill will ensure its
optimum performance. Make a habit of
inspecting your drill each time you use it.
Avoid overloading the drill. Always use
sharpened drill bits. Do not apply
excessive pressure to the drill while
using. If the speed drops abnormal-
ly, decrease pressure immediately. If
the bit stops abruptly or becomes
blocked, release the trigger at once.
Ensure the safety of the workplace.
Clear the work area of all parts and
debris that may cause injury by flying
objects. Securely fix the object to be
drilled or fastened in a vise or other-
wise clamp to avoid injury. Do not
attempt to hold workpiece by hand.
Inspect the drill before use. Run the drill
before using to ensure all parts are
running smoothly and there are no
abnormal sounds or sparks. If any
defect is found, have unit serviced.
Know your worksite. Only drill as deep
as necessary. Check behind walls
for wires, other electrical hazards, or
plumbing.
Continuous use of a worn or damaged bit
will not only decrease working efficiency,
but also overload the motor, so the bit must
be frequently checked. Replace the bit if it
is worn or damaged.
Periodically check all screws to be sure
that they are tight. If any screw is loose,
tighten immediately.
When carbon brushes become worn,
replace them promptly. The carbon brush
should be kept clean so they can slide
freely into the brush holder. To replace the
carbon brushes, open the front cover and
remove the screw from the brush holder.