Wen MM1215 Instruction Manual
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Wen MM1215 Instruction Manual

12 double bevel sliding compound miter saw
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MODEL MM1215
12" DOUBLE BEVEL SLIDING
COMPOUND MITER SAW
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
1-847-429-9263 (M-F 8AM-5PM CST)
TECHSUPPORT@WENPRODUCTS.COM
IMPORTANT: Your new tool has been engineered and manufactured to WEN's highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
WENPRODUCTS.COM
For replacement parts and the most up-to-date instruction manuals, visit

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Do you have a question about the MM1215 and is the answer not in the manual?

Questions and answers

Scott Dellinger
January 26, 2025

My saw has tremendous deflection and is out of square

0
1 comments:
Mr. Anderson
February 10, 2025

To fix deflection and squareness issues with the Wen MM1215 saw:

1. Set Bevel and Miter Angles to 0° – Ensure the miter angle indicator is at 0° and tighten the miter lock knob. Set the bevel angle indicator to 0° and tighten the bevel lock knob.

2. Check Blade Alignment – With the power OFF, move the blade through its full range of motion to check clearance. Use a combination square against the table and alongside the blade (not the teeth). Rotate the blade by hand to check alignment at different points.

3. Adjust Zero Stop Screw – If the blade does not sit flush against the combination square, adjust the zero stop screw until the table is at 90° with the blade. Secure it by tightening the zero stop lock nut.

4. Make a Test Cut – Perform a test cut and check for accuracy. Repeat step 3 if necessary until the cut is square.

Following these steps should correct deflection and squareness issues.

This answer is automatically generated

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Summary of Contents for Wen MM1215

  • Page 1 1-847-429-9263 (M-F 8AM-5PM CST) TECHSUPPORT@WENPRODUCTS.COM IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability, ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.

  • Page 2: Table Of Contents

    CONTENTS WELCOME Introduction ..................... 3 Specifications ....................3 SAFETY General Safety Rules ..................4 Specific Rules for Your Miter Saw ..............6 Electrical Information ..................8 BEFORE OPERATING Unpacking & Transportation ................9 Know Your Miter Saw ..................10 Assembly & Adjustments ................12 OPERATION &...

  • Page 3: Welcome

    INTRODUCTION Thanks for purchasing the WEN Miter Saw. We know you are excited to put your tool to work, but first, please take a moment to read through the manual. Safe operation of this tool requires that you read and understand this operator’s manual and all the labels affixed to the tool.

  • Page 4: Safety

    GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
  • Page 5 GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

  • Page 6: Specific Rules For Your Miter Saw

    SPECIFIC RULES FOR YOUR MITER SAW WARNING! Do not operate the power tool until you have read and understood the following instructions and the warning labels. SAW BLADE SAFETY 3. People with pacemakers should consult their physician(s) before use. Electromagnetic fields in close 1.
  • Page 7 SPECIFIC RULES FOR YOUR MITER SAW SECURE YOUR WORKPIECE 7. Turn on the miter saw and let it reach full speed, then slowly slide the saw into the workpiece. This will help 1. Never hand-hold a workpiece that is too small to be produce safer and cleaner cuts.

  • Page 8: Electrical Information

    ELECTRICAL INFORMATION DOUBLE-INSULATED TOOLS The tool’s electrical system is double-insulated where two systems of insulation are provided. This eliminates the need for the usual three-wire grounded power cord. Double-insulated tools do not need to be grounded, nor should a means for grounding be added to the product. All exposed metal parts are isolated from the internal metal motor components with protecting insulation.

  • Page 9: Before Operating

    UNPACKING & TRANSPORTATION WARNING! Do not plug in or turn on the tool until it is fully assembled according to the instructions. Failure to follow the safety instructions may result in serious personal injury. UNPACKING With the help of a friend or trustworthy foe, carefully remove the miter saw from the packaging. Make sure to take out all contents and accessories.

  • Page 10: Know Your Miter Saw

    KNOW YOUR MITER SAW TOOL PURPOSE Miter saws allow you to easily make cuts at a variety of angles. Refer to the following diagrams to become familiar- ized with all the parts and controls of your miter saw. The components will be referred to later in the manual for assembly and operation instructions.
  • Page 11 KNOW YOUR MITER SAW 18. Power Switch Lock 25. Workpiece Clamp Locking Knob 19. LED Power Switch 26. Power Switch 20. Release Bolt 27. Top Carry Handle 21. Fence Locking Knob 28. Dust Port 22. Support Bar Locking Knob 29. Dust Bag 23.

  • Page 12: Assembly & Adjustments

    ASSEMBLY & ADJUSTMENTS WARNING! Do not plug in or turn on the tool until it is fully assembled according to the instructions. Read through and become familiarized with the following procedures of handling and adjusting your tool. Failure to follow the safety instructions may result in serious personal injury. INSTALLING THE MITER LOCK KNOB Fig.
  • Page 13 ASSEMBLY & ADJUSTMENTS RAISING/LOWERING THE SAW ARM Fig. 2 The saw arm needs to be raised up before operation and locked down for transporting and storing. To raise saw arm from the lower position: 1.Holding operating handle (Fig. 2 - 1), lightly press down on the saw arm and pull out the release bolt (Fig.
  • Page 14 ASSEMBLY & ADJUSTMENTS ADJUSTING THE MITER ANGLE Fig. 4 The miter table can be adjusted from 0° to 50° to the left and 0° to 45° to the right to create miter cuts. 1. Loosen the miter lock knob (Fig. 4 - 1) by turning it one or two turns counterclockwise.
  • Page 15 (Fig. 6). Mount and fix the saw to a level, horizontal bench, worktable, or miter saw stand (compatible with WEN Models MSA330 and MSA750) using four bolts and nuts (not included). If desired, you can mount the saw to a piece of 1/2 inch or thicker plywood which can then be clamped to your work bench or moved to other jobsites and reclamped.
  • Page 16 ASSEMBLY & ADJUSTMENTS 6. Fully loosen the two fence adjustment knobs (Fig. 8A - Fig. 8A Fig. 8B 1) and remove both fence guides (Fig. 8A - 2). There are four hex bolts (2 on either side) that hold the fence base to the saw base (Fig.
  • Page 17 ASSEMBLY & ADJUSTMENTS SETTING THE BEVEL SCALE INDICATOR Fig. 11 1. Before setting the bevel scale indicator, the table must be perpendicular to the saw blade. See section titled, "Squar- ing the Table with the Blade" on page 15. 2. Loosen the screw (Fig. 10 - 5) holding the bevel scale indicator.
  • Page 18 ASSEMBLY & ADJUSTMENTS CHANGING THE SAW BLADE Fig. 13 DANGER! Never try to use a blade larger than the stated capacity of the saw. Do not use a blade thicker than 1.9mm. It will prevent the blade screw from properly securing the blade on the spindle.

  • Page 19: Operation & Maintenance

    OPERATION WARNING! Do not plug in or turn on the tool until it is fully assembled according to the instructions. Read through and become familiarized with the following procedures of handling and adjusting your tool. Failure to follow the safety instructions may result in serious personal injury. WARNING! Before operating the miter saw, make sure to equip yourself with a dust mask, ear protection, and safety glasses for protection from possible injuries.
  • Page 20 OPERATION WARNING! Do not plug in or turn on the tool until it is fully assembled according to the instructions. Read through and become familiarized with the following procedures of handling and adjusting your tool. Failure to follow the safety instructions may result in serious personal injury. WARNING! Before operating the miter saw, make sure to equip yourself with a dust mask, ear protection, and safety glasses for protection from possible injuries.

  • Page 21: Maintenance

    WARNING! Any attempt to repair or replace electrical parts on this tool may be hazardous. Servicing of the tool must be performed by a qualified technician. When servicing, use only identical WEN replacement parts. Use of other parts may be hazardous or induce product failure.
  • Page 22 Check for: CARBON BRUSH REPLACEMENT • Loose hardware, Replacement carbon brushes (Part No. MM1215- • Misalignment or binding of moving parts, 124) can be ordered at wenproducts.com. Only gen- • Damaged cord/electrical wiring, uine WEN replacement brushes designed specifically •...

  • Page 23: Troubleshooting Guide

    TROUBLESHOOTING GUIDE WARNING! Stop using the tool immediately if any of the following problems occur. Repairs and replacements should only be performed by an authorized technician. For any questions, please contact our customer service at 1-847-429-9263, M-F 8-5 CST or email us at techsupport@wenproducts.com. PROBLEM CAUSE SOLUTION...
  • Page 24 4. Inspect and replace carbon brushes as needed (see page 21). Replacement carbon brushes 4. Worn carbon brushes. (Part No. MM1215-124) can be ordered from wenproducts.com. 5. Defective motor or other 5. Stop using the tool and call 1-847-429-9263 internal problem.

  • Page 25: Exploded View & Parts List

    EXPLODED VIEW & PARTS LIST EXPLODED VIEW & PARTS LIST MITER SAW...
  • Page 26 EXPLODED VIEW & PARTS LIST MITER SAW Part No. Description Qty. Part No. Description Qty. 0-01 MM1215-001 Motor Assembly Socket Screws 0-20 MM1215-020 M8X16 0-02 MM1215-002 Pivot Assembly 0-21 MM1215-021 Lock Nut M6 0-03 MM1215-003 Base Assembly 0-22 MM1215-022 Wave Washer...
  • Page 27 EXPLODED VIEW & PARTS LIST EXPLODED VIEW & PARTS LIST MOTOR ASSEMBLY...
  • Page 28 EXPLODED VIEW & PARTS LIST MOTOR ASSEMBLY Part No. Description Qty. Part No. Description Qty. Cross-head Screws 1-27 MM1215-127 Motor Housing 1-01 MM1215-101 M5X35 1-28 MM1215-128 Warning Label Self-tapping Cross-head Screws 1-02 MM1215-102 1-29 MM1215-129 Screws M5X30 1-03 MM1215-103 Upper Handle...
  • Page 29 EXPLODED VIEW & PARTS LIST EXPLODED VIEW & PARTS LIST PIVOT ASSEMBLY Part No. Description Qty. Part No. Description Qty. 2-01 MM1215-201 Bevel Arm 2-12 MM1215-212 Washer 2-02 MM1215-202 Set-Screws M6X10 2-13 MM1215-213 Spring 2-03 MM1215-203 Slide End Cap 2-14...
  • Page 30 EXPLODED VIEW & PARTS LIST BASE AND TABLE ASSEMBLY...
  • Page 31 EXPLODED VIEW & PARTS LIST EXPLODED VIEW & PARTS LIST BASE AND TABLE ASSEMBLY Part No. Description Qty. Part No. Description Qty. Cross-head Screw 3-26 MM1215-326 Label 3-01 MM1215-301 M4X12 3-27 MM1215-327 Washer 3-02 MM1215-302 Table Insert 3-28 MM1215-328 Knob...
  • Page 32 EXPLODED VIEW & PARTS LIST QUICK-CLAMP ASSEMBLY Part No. Description Qty. Part No. Description Qty. MM1215-401 Self-tapping Screw 4-08 MM1215-408 Left Lock Handle 4-01 4-02 MM1215-402 Right Lock Handle 4-09 MM1215-409 Lock Tab 4-03 MM1215-403 End cap 4-10 MM1215-410 Spring...
  • Page 33 EXPLODED VIEW & PARTS LIST MITER LOCK HANDLE ASSEMBLY Part No. Description Qty. Part No. Description Qty. MM1215-601 Miter Lock Rod Cross-head Screw 6-01 6-03 MM1215-603 M4X12 6-02 MM1215-602 Miter Lock Knob 6-04 MM1215-604 End cap BEVEL LOCK HANDLE ASSEMBLY Part No.

  • Page 34: Warranty Statement

    (2) years from date of purchase or 500 hours of use; whichever comes first. Ninety days for all WEN products if the tool is used for pro- fessional or commercial use.
  • Page 35 NOTES...
  • Page 36 THANKS FOR REMEMBERING V. 2022.11.07...

Table of Contents