Ridgid MS255SR Operation Manual - Page 33

� WARNING: When servicing, use only identical replacement parts. Use of any other part 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, carbon dust, etc. � WARNING: Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils, etc., to come in contact with plastic parts. They contain chemicals that can damage, weaken, or destroy plastic. 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. � WARNING: To ensure safety and reliability, all repairs should be performed by a qualified service technician at an authorized service center to avoid risk of personal injury. Some areas will require infrequent lubrications. You will need to apply: 1. Automotive oil directly to the slide bars. 2. Light oil or pressurized light spray oil to the arm pivot shaft. 3. Light oil or pressurized light spray oil to the torsion spring. BRUSH REPLACEMENT Fig. 38 The saw has externally accessible brush assemblies that should be periodically checked for wear. Proceed as follows when replacement is required: 1. Unplug the saw. � WARNING: Failure to unplug the saw could result in accidental starting causing serious injury. 2. Remove the brush cap with a screwdriver. The brush assembly is spring loaded and will pop out when you remove the brush cap. 3. Remove the brush assembly. 4. 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. 5. Reassemble using new brush assemblies. Make sure that the curvature of the brush matches curvature of the motor and that the brush moves freely in the brush tube. 6. Make sure that the brush cap is oriented correctly (straight) and replace. 7. Tighten the brush cap securely. Do not over-tighten. Brush cap Brush assembly 32 Brush assembly Brush cap Fig. 38