5
Palmgren Operating Manual & Parts List
82066 & 82086
OPERATION (CONTINUED)
•
A manual reset overload protector is located on the right side
of the base. If the protector breaks the circuit, wait at least 15
seconds and then push protector in to reset. Restart grinder by
pressing the ON button and selecting High or Low speed.
•
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.
•
Use slower wheel speed when sharpening tempered tools.
Overheating will destroy the temper.
•
When grinding at high speed, 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 should have a minimum rated speed of at
least 3600 RPM.
•
Maximum wheel diameter is 6” for 82066 and 8” for 82086.
•
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 Grinding Wheel Dressers, Model 82901 are recom-
mended (See pages 9 and 11).
H
L
I
3458
Digital Display
Displays RPM
Flashes during startup
and RPM adjustment
Press First to
Turn Display ON
Activates Control
Panel. Press H or
L to start motor
OFF
Turns motor and
control panel OFF
Start Motor at Low Speed
Change speed to lowest RPM
Start Motor at High Speed
Change speed to highest RPM
Adjust Speed DOWN
Reduces speed down by
100 RPM until lowest
RPM is reached
Adjust Speed UP
Increases speed up by
100 RPM until max RPM
is reached
Grinder Control Panel Operation
Press This
Button
Motor OFF
Display OFF
Motor OFF
Display shows 0 RPM
Motor ON
I
Activates control panel
Display shows 0 RPM
No change
No change
No change
Turns control panel OFF Turns motor and
control panel OFF
H
No change
Motor starts at
HIGHEST RPM
Changes speed to
HIGHEST RPM
L
No change
Motor starts at
LOWEST RPM
Changes speed to
LOWEST RPM
No change
No change
Increases speed UP
by 100 RPM
No change
No change
Reduces speed DOWN
by 100 RPM
Figure 4 – Grinder Control Panel
