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14
� Loosen and remove clamp nut from spindle using the
wrench provided.
� Remove grinding wheel and disc flange.
� Align index arrows on guard and bearing cap to remove
guard.
� Place the new guard on the shoulder of the bearing cap
by aligning index arrows on guard and bearing cap.
� Depress the lever and rotate guard to the correct position.
Refer to Positioning the Guard earlier in this manual.
NOTE: Be sure the raised ridge on the guard is seated in
the groove on the bearing cap.
� Reassemble disc flange, grinding wheel, and clamp nut.
Refer to Installing Grinding Wheel earlier in this manual.
� Tighten the clamp nut securely with the wrench provided.
MAINTENANCE
WARNING:
When servicing use only identical RIDGID
replacement parts. Use of any other parts may
create a hazard or cause product damage.
WARNING:
Always wear safety goggles or safety glasses with
side shields during power tool operation or when
blowing dust. If operation is dusty, also wear a
dust mask.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc.,
come in contact with plastic parts. Chemicals can
damage, weaken, or destroy plastic which may
result in serious personal injury.
Electric tools used on fiberglass material, wallboard, spack-
ling compounds, or plaster are subject to accelerated wear
and possible premature failure because the fiberglass chips
and grindings are highly abrasive to bearings, brushes, com-
mutators, etc. Consequently, we do not recommended using
this tool for extended work on these types of materials. How-
ever, if you do work with any of these materials, it is extremely
important to clean the tool using compressed air.
LUBRICATION
All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrication
is required.
REPLACING THE GUARD
See Figures 9 - 10.
After extended use, the guard may wear and need replacing.
If you drop the grinder and damage the guard it may also be
necessary for you to replace it.
To replace the guard:
� Unplug the grinder.
WARNING:
Failure to unplug the grinder could result in
accidental starting causing serious injury.
� Depress spindle lock button and rotate clamp nut until
spindle locks.
Fig. 9
DISC FLANGE
CLAMP NUT
GRINDING
WHEEL
SPINDLE
TOOLLESS
GUARD
SPINDLE
LOCK BUTTON
WRENCH
TO TIGHTEN
TO LOOSEN
BEARING CAP
ALIGN INDEX
ARROWS TO
INSTALL OR
REMOVE
DEPRESS
LEVER
TO ROTATE
TOOLLESS
GUARD
Fig. 10