OPERATION
USING THE LEVELS
See Figure 13.
Two levels are recessed in the motor housing of the hammer drill. One is located on top, while the other is located on the end. They can be used to keep drill bits level during both horizontal and vertical drilling operations.
DRILLING
See Figure 13.
Follow these steps to drill.
■Secure the material to be drilled in a vise or with clamps to keep it from turning as the drill bit rotates.
■Hold the tool firmly and place the bit at the point to be drilled.
■Depress the trigger switch to start the tool.
■Move the drill bit into the workpiece, applying only enough pressure to keep the bit cutting. Do not force or apply side pressure to elongate a hole.
TOP VIEW
20
LEVEL
WARNING:
Be prepared for binding or breakthrough. When these |
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situations occur, the drill has a tendency to grab and |
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kick in the opposite direction and could cause loss of |
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control when breaking through material. If you are not |
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prepared, this loss of control could result in possible | LEVEL | |
serious injury. | ||
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HELPFUL TIPS
■ When drilling hard, smooth surfaces, use a center punch to mark the desired hole location. This prevents
the drill bit from slipping off center as you start the END VIEW hole. You may, however, start holes without center
punching if you use the lower speed. To accomplish this action, simply operate the drill at a lower speed until the hole is started.
■When drilling metals, use a light oil on the drill to keep
it from overheating. The oil will prolong the life of the |
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bit and increase the drilling action. | 02 | 15 |
■If the bit jams in the workpiece or if the drill stalls, stop the tool immediately. Remove the bit from the workpiece and determine the reason for jamming.
WARNING:
Do not force the tool. Forcing the tool can result in jamming and loss of balance or footing, which could result in personal injury.
Fig. 13
15
