Master WORKS MW589, Operator'S Manual

Page: 14 / 17

14
MAINTENANCE
WARNING:
When servicing use only identical Ridgid replace-
ment parts. Use of any other parts may create a
hazard or cause product damage.
WARNING:
The angle grinder should never be connected to
a power supply when you are assembling parts,
making adjustments, cleaning, performing main-
tenance, or when the tool is not in use. Discon-
necting the tool will prevent accidental starting
that could cause serious injury.
General
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, carbon dust, etc.
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc.
come in contact with plastic parts. They contain
chemicals that can damage, weaken, or destroy
plastic.
Electric tools used on fiberglass material, wallboard,
spackling compounds, or plaster are subject to accelerated
wear and possible premature failure because the fiberglass
chips and grindings are highly abrasive to bearings,
brushes, commutators, etc. Consequently, we do not
recommended using this tool for extended work on these
types of materials. However, if you do work with any of
these materials, it is extremely important to clean the tool
using compressed air.
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.
Lubrication
All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the tool under
normal operating conditions. Therefore, no further
lubrication is required.
Replacing the Guard
See Figure 9.
After extended use, the guard may wear and need replacing.
If you drop your grinder and damage the guard it may also
be necessary for you to replace it.
Follow these steps to replace the guard.
Unplug the grinder.
WARNING:
Failure to unplug your grinder could result in acci-
dental starting causing serious injury.
Depress spindle lock button and rotate clamp nut
until spindle locks.
Loosen and remove clamp nut from spindle using
the wrench provided.
Remove grinding wheel and disc flange.
Loosen the clamp screw until you can remove the
guard from the bearing cap.
Place the new guard on the shoulder of the bearing
cap.
Note: If the new guard will not fit, loosen the clamp
screw until they slide over the bearing cap.
Rotate guard to the correct position as shown.
Note: Be sure the raised ridge on the guard is
seated in the groove on the bearing cap.
Tighten clamp screw securely.
Reassemble disc flange, grinding wheel, and clamp
nut. Refer to " Installing Accessory Wheels " earlier in
this manual.
Tighten the clamp nut securely with the wrench
provided.
Fig. 9
Loosen
(counterclockwise)
tighten(clockwise)