Genesis GHD1275 Manual Del Operario página 10

• Center the bit in the jaws and hand tighten the jaws by rotating the chuck collar clockwise, being sure the bit
is properly aligned in the chuck jaws.
• Insert the chuck key into one of three holes in the chuck, turning the chuck key clockwise to securely tighten
the chuck. Do not use a wrench, pliers, or means other than the chuck key to tighten or loosen the chuck.
To Remove the Drill Bit:
• unplug the hammer drill.
• Loosen the chuck by inserting the chuck key into one of the three holes in the chuck and turn it counter-
clockwise.
• Remove the drill bit from the chuck.
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chuck after each use.
SETTING THE DEPTH GAUGE
Mounted in your hammer drill auxiliary handle is a rod (8-fIG 1) called the depth gauge. Setting the depth gauge
gives you the ability to repeatedly drill holes to the same depth.
To Set the Depth Gauge:
• unplug the hammer drill.
• Turn the auxiliary handle and push the hex head of bolt off its socket to release the depth gauge rod.
• Measure backwards from the tip of drill bit the desired depth of holes, and then move the depth gauge so the
tip of the gauge is aligned with the desired drilling depth.
• Tighten the auxiliary handle and lock the depth gauge by turning the handle clockwise.
APPLICATION
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The tool must be set for forward or clockwise rotation only. Failure to obey this caution
may cause property damage.
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unplug the tool before changing accessories or making adjustments. Failure to obey this
warning may cause serious personal injury.
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back exerted by the tool. The tendency for the drill to grab or kick back in the opposite
direction is caused by hole breakthrough, the hole becoming clogged with chips or
concrete/masonry dust, or by striking hidden reinforcing bar embedded in the concrete.
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handle during drilling and hammer drilling operations. Failure to be prepared may result
in loss of tool control and possible serious injury.
DRILLING IN CONCRETE AND MASONRY PRODUCTS
• unplug the drill from the power source.
• Install the desired size drill bit and tighten the chuck.
(Important Note: Be sure to use percussion type carbide tipped drill bits.)
• Select the "hammer drill" mode.
• Move the forward/reverse lever to the forward position.
• Set the depth gauge if needed and position the auxiliary handle. Tighten the auxiliary handle.
• Secure the workpiece in a vise, with clamps or other means if necessary to keep the workpiece from spinning
as the drill bit rotates.
• Mark the location(s) on workpiece where the holes are to be drilled.
• Be sure you are wearing appropriate eye protection, hearing protection, and respiratory protection. You may
want to wear gloves with padded palms to minimize vibration to hands and arms.
• Before plugging the hammer drill into a power source, make sure the "Lock-On" button is not engaged and the
trigger switch operates properly.
• Plug the hammer drill into a power source.
• Position the drill bit at the desired location for the hole.
1/2" Hammer Drill
Operator's Manual
To prevent personal injury, always remove the chuck key from the
Always check the direction of rotation before operating the tool.
Always wear safety goggles or safety glasses with side shields and
Be prepared for a sudden and tremendous twisting force or kick
Always maintain a firm grip on both the auxiliary handle and switch
GHD1275