RIDGID MS1290LZ Operator's Manual
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RIDGID MS1290LZ Operator's Manual

12" compound miter saw with exactline
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Summary of Contents for RIDGID MS1290LZ

  • Page 2: Table Of Contents

    Safety Instructions For Miter Saw ...3 Safety Signal Words ...3 Before Using The Saw ...3 When Installing Or Moving The Miter Saw ...4 Before Each Use ...4 To Reduce the Risk of Injury From Jams, Slips Or Thrown Pieces ...5 Plan Ahead To Protect Your Eyes, Hands, Face and Ears ...5...

  • Page 3: Safety Instructions For Miter Saw

    Safety Instructions For Miter Saw Safety is a combination of common sense, staying alert and knowing how your miter saw works. Read this manual to understand this miter saw. Safety Signal Words DANGER: means if the safety infor- mation is not followed someone will be seriously injured or killed.

  • Page 4: When Installing Or Moving The Miter Saw

    Thrown debris could injure people in its path. To reduce the risk of injury from unexpected saw movement: • Place the miter saw on a firm level surface where there is plenty of room for handling and properly sup- Before Each Use Inspect your miter saw.

  • Page 5: To Reduce The Risk Of Injury From Jams, Slips Or Thrown Pieces

    If any part of this miter saw is missing, bent, or broken in any way, or any electrical parts don't work, turn the saw off and unplug it. Replace dam- aged, missing, or failed parts before using the saw again.

  • Page 6: Dress For Safety

    • For dusty operations, wear a dust mask along with safety goggles. • Slide the saw out above the front edge of the workpiece before start- ing saw, and • Push the sawblade down on top of the wood and back toward the rear of the saw to make the cut.

  • Page 7: Plan The Way You Will Hold The Workpiece From Start To Finish

    A careless fraction of a second is enough to cause a severe injury. Before starting your cut, observe the miter saw while it runs. If it makes an Use extra caution with large, very small or awkward workpieces: • Use extra supports (tables, saw horses, blocks, etc.) for any work-...

  • Page 8: Before Leaving The Saw

    Don’t Force Tool. It will do the job better and safer at its designed rate. Feed the saw into the workpiece only fast enough to let the blade cut with- out bogging down or binding. Before Leaving The Saw Never Leave Tool Running Unat- tended.

  • Page 9: Motor Specifications And Electrical Requirements

    110-120 Volt, 60 Hz. Tool Information Double Insulated The miter saw is double insulated to pro- vide a double layer of insulation between you and the tool’s electrical system. All exposed metal parts are isolated from the...

  • Page 10: Motor Safety Protection

    For heavy loads, however, the voltage at motor terminals must equal the voltage specified on nameplate. c. Improper or dull saw blades are used. 5. Most motor troubles may be traced to loose or incorrect connections, over- load, low voltage (such as small size wire in the supply circuit) or to overly long supply circuit wire.

  • Page 11: Unpacking And Checking Contents

    Do not throw away any packaging until saw is put together. Check packaging for missing parts before contacting RIDGID. A complete parts list (Repair Parts) is at the end of the manual. Combination Square Must be True Draw Light...

  • Page 12: Getting To Know Your Miter Saw

    12. Slide Tube(s) - Allow the blade to slide for cutting various workpiece widths. 13. Slide Lock Knob - Prevents the saw’s sliding motion by locking the carriage in place. 14. Slide Fence Lock Knob - Locks fence at correct cutting position.

  • Page 13: Assembly

    NOTE: See “Mounting the Laser System” section of the owners manual for direc- tions on installing the laser system. 1. Unplug the saw from the outlet. Cut- ting head is up. 2. Rotate the lower blade guard by hand. Loosen, but do not remove, the cover plate stop screw using the Phillips end of combination wrench.
  • Page 14 Tighten the screw with the Phillips end of the combination wrench. DANGER: Never use saw without guard cover plate securely in place. It keeps the arbor screw from falling out if it accidentally...

  • Page 15: Assembling Dust Bag

    5. Clamp dust bag onto elbow. NOTE: If connecting a 2-1/2" wet/dry vac hose to the saw, do not attach the dust bag frame, dust bag and elbow to the saw. Connect the wet/dry vac hose directly to the dust port on the upper blade guard.
  • Page 16 Four Basic Saw Controls (continued) 2. Bevel lock lever/index pin To change the bevel setting of the blade: a. Pull the bevel lock lever forward. Then rotate the bevel index pin downward. This will allow the blade to be tilted and at the same time “by- pass”...

  • Page 17: Alignment (Adjustments)

    The power cord must remain unplugged whenever you are working on the saw. NOTE: For best results, the saw must be properaly aligned before mounting and using the laser system. Step One: Repositioning Zero Clear-...
  • Page 18 Alignment (Adjustments) (continued) Step Three: Blade Square to Fence (Miter Alignment) 1. Place the blade in the 0° miter index and lock the miter lock. 2. To check blade squareness to fence, lock powerhead in lower position. Use a combination square. Place the square against the fence and next to the blade as illustrated.
  • Page 19 Step Four: Blade Square to Table (Bevel Adjustment) 1. Place the saw in the 0° bevel index position and make sure bevel lock is disengaged. 2. Lower the blade and engage the head hold down. 3. Use a combination square to check that the blade is 90°...

  • Page 20: Miter Lock Lever Adjustment

    Alignment (Adjustments) (continued) Miter Lock Lever Adjustment With the blade set at an “unindexed” miter position (other than 0°, 15°, 22.5°, 31.6°, 45° and 60°) and the miter lock lever set in the “locked” position the locking action should feet tight and secure. Considerable effort should be required to move the table (blade).

  • Page 21: Bevel Pivot Movement/Adjustment

    Bevel Pivot Movement/Adjustment Check that the miter saw bevels easily by unlocking the bevel lock lever and tilting the blade. NOTE: At least one thread of the pivot bolt should stick out past the hex lock nut.

  • Page 22: Mounting The Miter Saw

    Four smaller holes for screws are labeled A. Four holes for bolts are labeled B (see illustration). If the saw is to be used in one location, permanently fasten it to the work bench or leg set.

  • Page 23: Safety Instructions For Basic Saw Operations

    • Other conditions that may affect the way the miter saw works. If any part of this miter saw if missing, bent, or broken in any way, or any electrical parts don’t work, turn the saw off and unplug it. Replace dam- aged, missing, or failed parts before using the saw again.

  • Page 24: Plan Ahead To Protect Your Eyes, Hands, Face And Ears

    To reduce the risk of injury from acci- dental contact with moving parts, don’t do layout, assembly, or setup work on the miter saw while any parts are moving. Reduce the Risk of Accidental Starting. Make sure switch is “OFF”...

  • Page 25: Preparing To Make The Cut

    • Do not use this saw to cut pieces too small to let you easily hold the work while you keep the thumb side of your index (pointer) finger against the outside edge of the fence.

  • Page 26: Whenever Saw Is Running

    Before starting your cut, observe the miter saw while it runs. If it makes an unfamiliar noise or vibrates exces- sively, stop immediately. Turn the saw off. Unplug the saw. Do not restart until finding and correcting the prob- lem.

  • Page 27: Basic Saw Operations

    3. Grasp the saw handle and pull the car- riage until the arbor (center of saw- blade) is over the front edge of the workpiece. 4. Switch on the saw and allow to come to full speed. WARNING: For your convenient use, your saw has a blade brake.

  • Page 28: Chop Cutting

    3. Position workpiece on table and against fence and secure with clamp as appro- priate. 4. Turn on saw and lower blade into work- piece. 5. After cut is complete turn off saw, allow blade to stop rotating before allowing cutting head to rise up.

  • Page 29: Miter Cut

    1/4° increment as illustrated below. Miter Scale knob and make a dry run with the saw off to check for clearance between the fence and guard. On certain extreme compound cuts it may be necessary to remove a slid- ing fence to avoid interference.

  • Page 30: Compound Cut

    Basic Saw Operations (continued) Compound Cut When a compound cut is required, select the desired bevel and miter positions. Cutting Compound Miters on Picture Frames and Boxes A compound miter is a cut requiring both a miter setting and bevel setting. A com-...

  • Page 31: Workpiece Clamp Usage

    Do not overtighten the clamp. It should just lightly hold the wood against the fence and table. 2. Perform a dry run with the saw unplugged. After you believe that the saw is completely set up, pull the power head down as if you were making an actual cut.

  • Page 32: Workpiece Support

    Three stacked 2 x 4’s can be used as a work support extension. ence before proceeding. The auxiliary fence is used with the saw in the 0° bevel position. If a bevel cut is desired, the aux- iliary fence will have to be removed.

  • Page 33: Rough Cutting A Dado

    Cutting Base Moldings Base moldings and many other moldings can be cut on a miter saw. The set up of the saw depends on your molding and your application as shown. Always make sure moldings rest firmly against fence and table.

  • Page 34: Cutting Crown Moldings

    Two Methods of Cutting Crown Molding Crown molding may either be cut (1) flat on the miter saw table or (2) angled to the table and fence. (See square below) Most standard (U.S.) crown molding has a top rear angle (angle that fits next to the ceil- ing) of 52°...
  • Page 35 Small changes in the miter angle can be made without affecting the bevel angle. When using this method the saw can be quickly and easily adjusted for corners that are not 90° (square). Making a crown molding support jig:...
  • Page 36 Basic Saw Operations (continued) Compound Miter Saw Miter and Bevel Angle Settings Wall to Crown Molding Angle: 52/38 degrees Bevel Miter Wall Angle Angle Angle (deg.) (deg.) (deg.) 43.0 46.8 42.8 46.3 42.5 45.7 42.2 45.1 41.9 44.6 41.7 44.0 41.4...

  • Page 37: Wall To Crown Molding Angle

    Wall to Crown Molding Angle: 45 degrees Bevel Miter Wall Angle Angle Angle (deg.) (deg.) (deg.) 37.8 50.8 37.5 50.2 37.3 49.6 37.1 49.1 36.8 48.5 36.6 48.0 36.4 47.4 36.1 46.9 35.9 46.4 35.6 45.8 35.4 45.3 35.1 44.8 34.9 44.2 34.6...

  • Page 38: Laser System

    4. Find the arbor lock between the upper guard and the miter saw handle. Fit 1/4" hex end of combination tool in arbor screw or use 1/2" box end wrench. 5. Press the arbor lock and hold it firmly while turning the wrench clockwise.
  • Page 39 7. Place the laser system onto the saw arbor, aligning the double “D” flats in the laser system with the flats on the arbor. Press the arbor lock and turn the com- bination wrench counterclockwise to secure the blade.

  • Page 40: Operation

    Operation DANGER: Laser radiation. Avoid direct eye exposure. When the saw is “ON” and the blade is in its highest position, the laser system will show up on your workpiece as a red col- ored broken line. This red broken line will...

  • Page 41: Changing Batteries

    • Avoid direct eye contact. • The laser is activated by means of a centrifugal switch only while the saw motor is running and the laser system is mounted on the saw. 6. Replace the back cover and secure with two Phillips screws.

  • Page 42: Maintenance And Lubrication

    Lower Blade Guard Do not use the saw without the lower guard. The lower blade guard is attached to the saw for your protection. Should the lower guard become damaged, do not use the saw until damaged guard has been replaced.

  • Page 43: Lubrication

    Lubrication Ball Bearings All the motor bearings in this tool are lubri- cated with a sufficient amount of high grade lubricant for the life of the unit, therefore, no further lubrication is required. Infrequent Lubrication as Required 1. Apply automotive type oil directly on slide tubes.

  • Page 44: Accessories

    Accessories Recommended Accessories Item Miter Saw Utility Vehicle ... AC9940 Do not use any accessory unless you have received and read complete instruc- tions for its use. WARNING: To reduce the risk of injury from unsafe accessories, use only accessories recom- mended.

  • Page 45: Troubleshooting Guide

    “Alignment” section. 1. See “Lubrication” section. 2. Get authorized Service. 3. Get authorized Service. 4. Inspect/clean stops. 1. See “Basic Saw Operation” section. 2. Replace or sharpen blade. 3. Replace with 12” diameter blade designed for the mate- rial being cut.

  • Page 46: Motor

    Troubleshooting Guide (continued) Motor Problem Brake does not stop blade within 6 sec- onds. Motor does not start. Brush sparking when switch released. Wiring Diagram Connector White Cord w/Plug Trouble Shooting of Brake by Qualified Service Person Only 1. Check commutation at no load. If there is a heavy sparking which follows the curvature of the commutator: replace the armature.

  • Page 47: Notes

    Notes...

  • Page 48: Repair Parts

    Repair Parts Parts List For RIDGID 12" Slide Compound Miter Saw Model No. MS1290LZ 0 RIDGID parts are available on-line at www.ridgidparts.com Figure 1...
  • Page 49 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Always order by part number - not by key number Part No. Description 830122 Base/Table Asm (See Fig. 2) 830008 Scale, Bevel 830007 Pivot Asm (See Fig.
  • Page 50 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Figure 2 - Base/Table Assembly Always order by part number - Not by key number * Standard Hardware Item - May be purchased locally.
  • Page 51 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Always order by part number - Not by key number Part No. Description 830280 Table Asm (Includes Key No. 6) 829984-1 Ring, Retaining...
  • Page 52 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Always order by part number - Not by key number * Standard Hardware Item - May be purchased locally. Model No. MS1290LZ 0 Figure 4 - Base Assembly Part No.
  • Page 53 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Always order by part number - Not by key number Part No. Description 830262 Pivot Asm Only (Other Items Listed on Chart Not...
  • Page 54 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Figure 6 - Tube Pivot Assembly Always order by part number - Not by key number * Standard Hardware Item - May be purchased locally.
  • Page 55 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Always order by Part Number - Not by Key Number * Standard hardware item - May be purchased locally. Model No. MS1290LZ 0 Figure 7 - Pivot Sub Assembly Part No.
  • Page 56 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Figure 8 - Arm Guard Assembly ‡ Always order by part number - Not by key number Part No. Description 830225 Arm Guard Asm...
  • Page 57 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Figure 9 - Lower Guard Assembly ‡ Always order by part number - Not by key number Part No. Description 830530 • Guard, Lower 816677 •...
  • Page 58 Repair Parts Parts List For RIDGID 12" Compound Miter Saw RIDGID parts are available on-line at www.ridgidparts.com Always order by part number - Not by key number 830253 816768 830250 828064 828122-1 830027 • WARNING: Any attempt to repair or replace electrical parts on this unit may create a hazard unless repair is done by a qualified service technician.

  • Page 59: Notes

    Notes...
  • Page 60 What is covered under the Limited Three Year Warranty This warranty covers all defects in workmanship or materials in this RIDGID® tool for the three year period from the date of purchase. This war- ranty is specific to this tool. Warranties for other RIDGID® products may vary.

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