RIDGID R1020 manual General Maintenance, Lubrication, Replacing the Guard, Brush Replacement

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, commutators, etc. Consequently, we do not recommend using this product 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 product us- ing compressed air.

LUBRICATION

All of the bearings in this product are lubricated with a suf- ficient amount of high grade lubricant for the life of the unit under normal operating conditions. Therefore, no further lubrication is required.

REPLACING THE GUARD

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. Refer to Installing the Guard earlier in this manual.

BRUSH

ASSEMBLY

BRUSH CAP

Fig. 10

BRUSH REPLACEMENT

See Figure 10.

This product has externally accessible brush assemblies that should be periodically checked for wear.

Unplug the angle grinder.

With a flat head screwdriver, remove the brush caps. The brush assembly is spring loaded and will pop out when you remove the brush cap.

Remove the brush assembly (brush and spring). Check for wear. Replace both brushes when either has less than 1/4 in. length of carbon remaining. Do not replace one side without replacing the other.

Reassemble using new brush assemblies. Make sure curvature of brush matches curvature of motor and that brush moves freely in brush tube.

Replace brush cap and tighten securely. Do not over- tighten.

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