Porter-Cable 7556 Instruction Manual page 11

REMOVE CHUCK
The 7556 may be converted to a conventional straight drive drill by loosening
the back sleeve screw and removing the sleeve and right angle drive from
the drill. Remove the coupling retaining screw (hold spindle with spindle
wrench, turn screw clockwise with a
the chuck and washers from the right angle drive and assemble to drill
spindle.
NOTE: Chuck must be firmly seated on spindle before installing
chuck retaining screw.
HOW TO HOLD THE DRILL
The front end of drill may be made live if the tool drills into live
wiring in a wall. TO PREVENT ACCIDENTAL ELECTRICAL SHOCK, DRILL
MUST BE HELD AS SHOWN IN FIG. 3A.
An auxiliary handle (C) Fig. 2, is supplied with each drill.
GENERAL DRILLING
1. Be sure drill bit is securely gripped in chuck. (See INSTALLING AND
REMOVING DRILL BIT).
2. Set REVERSING SWITCH (B) Fig. 2 for clockwise rotation.
3. Make sure work is held securely in vise or clamped in place prior to
starting drilling operation.
Loose work may spin and cause bodily injury.
4. Locate exact center for hole to be drilled and using a center punch,
make a small dent in work.
5. Place tip of drill bit in dent made by center punch, hold drill square with
work, and start the motor.
6. Apply steady, even pressure to keep drill bit cutting. Too little pressure
will keep the bit from cutting and dull the edges due to excessive friction
created by sliding over the surface.
Too much pressure may cause the bit to break or overheat
resulting in bodily injury or damaged drill bits.
Fig. 3
5 " hex wrench) and coupling. Remove
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11
INSTALL CHUCK