4
INSTALLATION (CONTINUED)
Running the unit on voltages which are not within the range may
cause overheating and motor burn-out. Heavy loads require that
the voltage at motor terminals be no less than the voltage speci-
fied. Power supply to the motor is controlled by a double pole
locking rocker switch. Remove the key to prevent unauthorized
use.
GROUNDING INSTRUCTIONS
WARNING:
Improper connection of equipment grounding con-
ductor can result in the risk of electrical shock. Equipment should
be grounded while in use to protect operator from electrical
shock.
Check with a qualified electrician if grounding instructions are not
understood or if in doubt as to whether the tool is properly grounded.
This tool is equipped with an approved 3 conductor cord rated at
150V and a three prong grounding type plug for your protection
against shock hazards.
Grounding plug should be plugged directly into a properly
installed and grounded 3-prong grounding-type receptacle, as
shown (Figure 5).
Do not remove or alter grounding prong in any manner. In the
event of a malfunction or breakdown, grounding provides a path
of least resistance for electrical shock.
WARNING:
Do not permit fingers to touch the terminals of plug
when installing or removing from outlet.
Plug must be plugged into matching outlet that is properly
installed and grounded in accordance with all local codes and
ordinances. Do not modify plug provided. If it will not fit in outlet,
have proper outlet installed by a qualified electrician.
Inspect tool cords periodically, and if damaged, have them repaired
by an authorized service facility.
Green (or green and yellow) conductor in cord is the grounding
wire. If repair or replacement of the electric cord or plug is neces-
sary, do not connect the green (or green and yellow) wire to a live
terminal.
Where a 2-prong wall receptacle is encountered, it must be
replaced with a properly grounded 3-prong receptacle installed
in accordance with National Electric Code and local codes and
ordinances.
WARNING:
This work should be performed by a qualified
electrician.
A temporary 3-prong to 2-prong grounding adapter (see Figure 6)
is available for connecting plugs to a two pole outlet if it is proper-
ly grounded.
Do not use a 3-prong to 2-prong grounding adapter unless permit-
ted by local and national codes and ordinances. (A 3-prong to
2-prong grounding adapter is not permitted in Canada.) Where
permitted, the rigid green tab or terminal on the side of the
adapter must be securely connected to a permanent electrical
ground such as a properly grounded water pipe, a properly
grounded outlet box or a properly grounded wire system.
Many cover plate screws, water pipes and outlet boxes are not
properly grounded. To ensure proper ground, grounding means
must be tested by a qualified electrician.
EXTENSION CORDS
•
The use of any extension cord will cause some drop in voltage
and loss of power.
•
Wires of the extension cord must be of sufficient size to carry
the current and maintain adequate voltage.
•
Use the table to determine the minimum wire size (A.W.G.)
extension cord.
•
Use only 3-wire extension cords having 3-prong grounding
type plugs and 3-pole receptacles which accept the tool plug.
•
If the extension cord is worn, cut or damaged in any way,
replace immediately.
EXTENSION CORD LENGTH
Wire Size
A.W.G.
Up to 50 ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
NOTE: Using extension cords over 50 ft. long is not recommended.
ELECTRICAL CONNECTIONS
WARNING:
All electrical connections must be performed by a
qualified electrician. Make sure tool is off and disconnected from
power source while motor is mounted, connected, reconnected or
anytime wiring is inspected.
Motor and wires are installed as shown in wiring schematic (see
Figure 7). Motor is assembled with approved, 3-conductor cord to
be used at 120 volts.
The green ground line must remain securely fastened to the frame
to properly protect against electrical shock. The power supply to
the motor is controlled by a single pole locking rocker switch.
•
Remove the key to prevent unauthorized use.
Palmgren Operator’s Manual & Parts List
83116
Figure 6 – 2-Prong Receptacle with Adapter
Grounding Lug
Adapter
3-Prong Plug
Make Sure This
Is Connected To
A Known
Ground
2-Prong Receptacle
Figure 5 – 3-Prong Receptacle
Properly Grounded Outlet
Grounding Prong
3-Prong Plug
Switch
Switch
Motor
Line
Cord
Lamp
Figure 7 – Wiring Schematic
