RIDGID MS1290LZA manual Motor Belt Tension, Changing the Batteries, To check belt tension

Page 37

MAINTENANCE

WARNING:

Failure to unplug the saw could result in accidental starting causing serious injury.

Remove brush cap with a screwdriver. Brush assembly is spring loaded and will pop out when you remove brush cap.

Remove brush assembly.

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.

Make sure brush cap is oriented correctly (straight) and replace.

Tighten brush cap securely. Do not overtighten.

MOTOR BELT TENSION

See Figure 51.

The motor belt tension was adjusted at the factory but should still be checked periodically.

To check belt tension:

Using a phillips screwdriver, remove the screws holding the belt cover. Lift off the cover.

Check belt tension by squeezing the belt. Using light pressure, the belt should deflect approximately 1/4 in.

To adjust belt tension:

Loosen, but don’t remove, the six motor mount screws.

Increase the belt tension by turning the adjusting socket head set screw clockwise. Decrease the belt tension by turning the set screw counterclockwise.

NOTE: Excessive belt tension will cause the motor to fail prematurely.

Securely tighten the six motor mount screws.

Replace the belt cover and tighten securely using screws.

CHANGING THE BATTERIES

See Figure 52.

Unplug the saw.

Rotate and hold lower blade guard up.

Using the hex key (1/16 in.) provided, loosen and remove the screw from the battery cover then separate the cover from the laser guide.

Lower the blade guard.

Remove the three button cell batteries.

NOTE: Replace the batteries with button cell batteries that have a rating of 1.5 volt and 100 mAh (milliampere hour) minimum (number 76 series or equivalent).

When replacing the batteries, the laser guide should be thoroughly cleaned. Use a soft paintbrush, or similar device, to remove all sawdust and debris.

After cleaning the laser guide and replacing batteries, secure battery cover to laser guide using the screw. Tighten screw securely.

CAUTION:

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

SCREW

BATTERY

COVER

BATTERIES

BATTERY

COVER

NEGATIVE (–)

Fig. 52

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Contents MS1290LZA OPERATOR’S ManualIntroduction Table of ContentsRead ALL Instructions General Safety Rules Blade Coasts After Being Turned OFF  Before Making a CUT, be Sure ALL ADJUST- Ments are Secure Specific Safety RulesSpecific Safety Rules Symbol Name DESIGNATION/EXPLANATION SymbolsSymbol Signal Meaning ServiceElectrical Cord Length Wire Size A.W.GDouble Insulation Electrical ConnectionGlossary of Terms Product Specifications Features12 IN. Blade Know Your Compound Miter SAWAMP Motor Bevel Lock LeverMiter Lock Lever Switch TriggerMiter Scale Miter ThumbwheelRatchet Tools NeededCombination Square Phillips Screwdriver Framing SquareDust BAG Loose PartsFlat Head Socket CAP Screw Work Clamp HEX KEY Blade Wrench Dust GuideUnpacking AssemblyMounting Holes Locking / Unlocking the SAW ARM Using the Depth GuideSAW ARM Depth GuideInstalling the Work Clamp Installing the Dust BAGDust BAG Frame Guide Exhaust Port Work ClampInstalling / Replacing the Blade Removing the Mark Aligning the Laser Guide LineTo Cut the Mark To Leave the MarkCentering the SAW Blade Between the Slide Bars Removing / Replacing the Zero CLEAR- Ance Throat PlateTo adjust Adjusting the Miter Lock LeverSquaring the SAW Blade to the Fence See Figures 17View of Blade Square with Fence Miter Scale Indicator FigAdjusting the Bevel Pivot Adjusting the Bevel Lock LeverTravel Pivot Adjustment Bevel Lock Lever Lift to UnlockSquaring the Blade to the Miter Table IndicatorSee Figures 27 Sliding Miter FenceApplications OperationCutting with Your Sliding Compound Miter SAW See Figures 31 To Slide CUTSlide CUT Slide SAW ARM Forward then Push Down Back See Figures 33 To Miter CUT / Cross CUTWork Clamp Cross CUT Work Clamp Miter CUTTo Bevel CUT Scale Indicator BevelSee Figures 35 Bevel CUT Clamp Lock PINCompound Miter CUT To Compound Miter CUTClamping Wide Workpieces Supporting Long WorkpiecesLong Workpiece 45 x 45 Compound Miter CUTRough Cutting a Dado Using AN Auxiliary FenceDepth Guide CUT These Grooves With SAW Auxiliary FenceCutting Compound Miters COMPOUND-ANGLE Settings for Popular StructuresPitch Side Laying Molding Flat on the Miter Table Cutting Crown MoldingCeiling Inside Corner FenceMaking a Crown Molding Support JIG Using a Crown Molding Support JIGCrown Molding JIG To Adjust the Laser Guide AdjustmentsAdjustment Screw Laser Button Aperture HEX KEY Mark Cutting Warped MaterialGeneral Maintenance MaintenanceBrush Replacement LubricationScrew Battery Cover Batteries Negative To adjust belt tensionMotor Belt Tension Changing the BatteriesMiter Saw Utility Vehicle AccessoriesDAY Satisfaction Guarantee Policy WarrantyWhat is Covered Under the 3 Year Limited Service Warranty HOW to Obtain Service What is not CoveredModel No Customer Service InformationMS1290LZA Serial No
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