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EXTENSION CORD SELECTION
If an extension cord is used, make sure the conductor size is large enough to
prevent excessive voltage drop which will cause loss of power and possible
motor damage. A table of recommended extension cord sizes will be found
in this section. This table is based on limiting line voltage drop to 5 volts (10
volts for 230 volts) at 150% of rated amperes.
If an extension cord is to be used outdoors it must be marked with the suffix
W-A or W following the cord type designation. For example – SJTW-A to
indicate it is acceptable for outdoor use.
RECOMMENDED EXTENSION CORD SIZES FOR USE WITH PORTABLE ELECTRIC TOOLS
FUNCTIONAL DESCRIPTION
FOREWORD
Porter-Cable Model 7765 Rotary Hammer can be used for impact drilling and
for light chiseling work in masonry, using SDS or SDS-Plus style bits up to
7
/8"diameter or SDS or SDS-Plus style chisels.
ASSEMBLY and OPERATION
START AND STOP THE MACHINE
1. CAUTION: Make sure switch is OFF and power circuit voltage is the
same as that shown on the specification plate.
2. Connect machine to power circuit.
3. Grip machine firmly to resist starting torque.
4. Squeeze trigger switch (A) Fig. 1, to start motor. Release trigger to stop
motor. As the trigger switch is squeezed the motor speed increases.
5. A lock button (B) Fig. 1, is provided to keep the motor running without
holding the trigger switch ON. To lock the trigger switch ON, squeeze the
trigger as far as it will go, push in lock button and release trigger.
To unlock lock button, squeeze trigger and release, leaving lock button free
to spring out.
NOTE: The lock button can be engaged only when the machine is
running at maximum speed.
CAUTION: Never use the lock button where machine may have to
be stopped suddenly.
5
Length of Cord in Feet
115V 25 Ft. 50 Ft. 100 Ft. 150 Ft. 200 Ft. 250 Ft. 300 Ft. 400 Ft. 500 Ft.
230V 50 Ft. 100 Ft. 200 Ft. 300 Ft. 400 Ft. 500 Ft. 600 Ft. 800 Ft. 1000 Ft.
0-2 18 18 18 16 16 14 14 12 12
2-3 18 18 16 14 14 12 12 10 10
3-4 18 18 16 14 12 12 10 10 8
4-5 18 18 14 12 12 10 10 8 8
5-6 18 16 14 12 10 10 8 8 6
6-8 18 16 12 10 10 8 6 6 6
8-10 18 14 12 10 8 8 6 6 4
10-12 16 14 10 8 8 6 6 4 4
12-14 16 12 10 8 6 6 6 4 2
14-16 16 12 10 8 6 6 4 4 2
16-18 14 12 8 8 6 4 4 2 2
18-20 14 12 8 6 6 4 4 2 2
Nameplate Ampere Rating