Use and Care Manual

10
working voltage (due to start-up of larger machines
on the electrical branch or other fluctuations in line
voltage) the switch automatically trips OFF. The
switch will not activate the machine while it remains
in overload condition.
If the switch trips off, wait 3 to 5 minutes for the
overload relay to automatically reset. To restart the
machine you should remove the workpiece from
the table and turn the switch ON, again. Then wait
for the motor to come up to full speed before
continuing your grinding.
Figure 7: Rotary switch
7.3 Raising and lowering the table
For grinding most workpieces, the table should be
positioned more-or-less in the middle of the disc.
This allows you to do most of your work on the
right-hand side of the disc where downward motion
of the disc provides the safest grinding torque.
To grind larger workpieces, a larger disc surface
area can be exposed by lowering the table. This is
done as follows:
1. Turn off the ON/OFF switch and disconnect
the machine from its electrical power source to
prevent the possibility of accidental start-up.
2. Unlock the table lock handle.
3. Turn the table height handle until the table is at
a height appropriate to your workpiece size.
4. Lock the table lock handle.
5. Reconnect the machine to the electrical power
source.
Note: Never expose more of the grinding disc than
necessary to do an effective job of grinding the
workpiece. The more disc you have exposed, the
more hazardous any operation may become. And,
the more disc you have exposed, the harder it is to
control dust when using a vacuum dust control
system.
Figure 8: Table raiser system
7.4 Adjusting the table angle
The table can be adjusted downward to a
maximum angle of 45 degrees and upward to a
maximum angle of 15 degrees.
To adjust the table angle (Figure 9):
1. Be sure the ON/OFF switch is in the off
position.
2. Disconnect the machine from its electrical
power source to prevent any chance of an
accidental start-up.
3. Unlock the table lock handle.
4. Turn the table tilt handle until the pointer on
the angleprotractor is on the angle you want to
achieve.
5. Lock the table lock handle.
6. Reconnect the machine to its electrical power
source.
Figure 9: Table tilt system
Note: The table protractor, while accurate, may not
give you the precision required for highly accurate
grinding. For these cases requiring high precision
angles, use a machinist's protractor to establish the
required angle between table and disc as shown in
Figure 10.