Harbor Freight Tools 91176 - Manual (Page 11)

SKU 91176 PAGE 11
NOTE: Always switch to a fresh battery when tool performance begins to diminish.
Severe heat is most destructive to a battery; the more heat generated, the faster the
battery loses power. A battery that gets too hot can be permanently damaged. Never
over-discharge a battery by continuing to pull the tool trigger. When tool performance
begins to diminish, stop the tool, recharge the battery, and use a fresh battery for opti-
mal performance.
1. CAUTION: Always make sure the Battery Pack (14) is not attached to the Hammer
Drill prior to making any adjustments and adding or removing bits to the tool.
2. Determine the size bit you will use. With one hand, hold the rear section of the
Chuck (1) firmly. With the other hand, turn the front section of the Chuck (1)
counterclockwise to loosen the Chuck (1) and open the Jaws. See FIGURE 4.
Insert the non-cutting end of the bit into the Jaws at least 1/4”. Holding the rear
section of the Chuck (1) firmly, turn the front section of the Chuck (1) clockwise to
tighten the Chuck (1) and close the Jaws. Make sure the bit is securely held in the
Jaws of the Chuck (1) by putting on a thick work glove and pulling on the bit.
Variable Speed Switch (5)
Strap (12)
Trigger (16)
Reverse Switch (6)
Torque Settings
Front Chuck (1)
Section
Rear Chuck (1)
Section
Jaws
Driver Bit held in slot
Battery Pack (14)
FIGURE 4
OPERATING INSTRUCTIONS (Continued)
Torque Indicator Arrow