5
INSTALLATION (CONTINUED)
EXTENSION CORD LENGTH
Wire Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A.W.G.
Up to 100 ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
100 to 200 ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
200 to 300 ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
NOTE: Using extension cords over 300 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.
OPERATION
WARNING:
Always wear safety glasses complying with United
States ANSI Z87.1 (shown on package) before commencing power
tool operation.
•
Keep a steady, moderate pressure on the work and keep it
moving at an even pace for smooth grinding.
•
Pressing too hard overheats the motor and prematurely wears
down the grinding wheels.
•
Note the original bevel angle on the item to be sharpened and
try to maintain that angle. Sharpening a cutting edge requires
removing burrs from edge.
•
Deburring edge is done best by using the grinder to pull burr
from edge across the bevel angle.
•
The grinding wheel should rotate into object being sharpened.
•
Dip work into a coolant regularly to prevent overheating.
Overheating can weaken metals.
MAINTENANCE
•
As wheels wear, tool rests should be positioned closer to the
face of the wheels.
•
The gap between the wheel and the tool rest should not be
greater than
1
/
16
”. When the wheels are worn to the extent that
the
1
/
16
” maximum gap cannot be maintained, the wheels
should be replaced.
•
Replacement wheels must have a minimum rated speed of
1800 RPM.
•
Maximum wheel diameter is 12”.
•
To loosen nuts holding the wheels, disconnect power and push
a wood wedge between the tool rest and the wheel to keep
the shaft from turning. The threads on the right side of the
grinder (facing unit) are right hand; threads on the left side are
left hand. Tighten nuts securely before operating the grinder.
•
For grinding efficiency, wheels should be dressed periodically,
especially if they become clogged from grinding soft metals.
Palmgren Operating Manual & Parts List
82121
