RIDGID R86040, Operator'S Manual

Page: 9 / 32

9 - English
OPERATION
INSTALLING/REMOVING BATTERY PACK
See Figure 4, page 11.
To install:

Place the on/off switch in the OFF position.
NOTE:
If the on/off switch is in the
ON
position when the
battery is installed, the overload LED will flash and the
tool will not function. If this occurs, turn the tool off and
back on to begin use.

Insert the battery pack.
 Make sure the latches on each side of the battery pack
snap in place and that battery pack is secured in the
product before beginning operation.
To remove:
 Depress the latches on each side of the battery pack.
STARTING/STOPPING THE GRINDER
See Figure 5, page 11.

To turn the angle grinder on
,
push the on/off switch
forward to the
ON
position. To lock the grinder in the
ON
position, depress the front of the switch.

To stop the grinder, place the on/off switch in the OFF
position. If the switch is in the locked position, depress
the rear of the switch.
NOTICE:
Never cover air vents. They must always be open
for proper motor cooling.
POSITIONING THE GUARD
See Figures 6 - 8, page 12.
The guard on the grinder should be correctly positioned
depending on which side the handle is mounted. Never use
the grinder without the guard correctly in place.
WARNING:
Never place the guard so that it is in front of the
grinder. This could result in serious injury because
sparks and loose particles thrown from the grinding
wheel would be directed toward the operator.
Always place the guard in the correct location as
shown.
To reposition the guard:
 Remove the battery pack.

Depress lever and rotate the guard to its correct position
as shown.
NOTE:
Be sure the raised ridge on the guard is seated
in the groove on the bearing cap. Never use the grinder
without the guard in place and properly adjusted.
OPERATING THE GRINDER
See Figure 9, page 12.
Always carefully select and use grinding wheels that are
recommended for the material to be ground. Make sure
that the minimum operating speed of any accessory wheel
selected is 9,000 /min. or more. The grinding wheel provided
with the grinder is suitable for grinding welds, preparing
surfaces to be welded, grinding structural steel, and grinding
stainless steel.
To operate the grinder:

Secure all work in a vise or clamp to a workbench.
DANGER:
Never use the grinder with the guard removed.
It has been designed for use only with the guard
installed. Attempting to use grinder with guard
removed will result in loose particles being thrown
against the operator resulting in serious personal
injury.

Hold the grinder in front and away from you with both
hands, keeping the grinding wheel clear of the workpiece.

Turn on the grinder and let the motor and grinding wheel
build up to full speed.

Lower the grinder gradually until the grinding wheel
contacts the workpiece.

Keep the grinder tilted at an angle from 5 to 15 degrees
from the work surface.
WARNING:
To prevent loss of control and possible serious
personal injury, always operate the grinder with
both hands, keeping one hand on the side handle.

Move the grinder continuously at a steady, consistent pace.
NOTICE:
If the grinder is held in one spot too long, it will
gouge and cut grooves in the workpiece. If the
grinder is held at too sharp an angle, it will also
gouge the workpiece because of concentration of
pressure on a small area.

Use just enough pressure to keep the grinder from
chattering or bouncing. When too much pressure is
applied, the overload LED will flash. If the pressure isn’t
relieved, the tool will automatically shut off.
NOTE:
Heavy pressure will decrease the grinder’s speed and
put a strain on the motor. Normally the weight of the tool
alone is adequate for most grinding jobs. Use light pressure
when grinding jagged edges or loose bolts where there is the
potential for the grinder to snag on the metal edge.

Lift the grinder away from the workpiece before turning
off the grinder.