Bosch 5412L User Manual (English)

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Questions and Answers:

C
Carlos CarrollAug 14, 2025
What to do if my Bosch Saw motor does not start?
- R
  rachel61Aug 14, 2025
  If the motor does not start, first ensure the unit is properly plugged in and try a different outlet. Check the power source fuse, and replace it with a 15-Amp time delay fuse or circuit breaker if necessary. If the brushes are worn, see the Brush Replacement section in the Maintenance and Lubrication section. Also, make sure the handle is locked into one of the four usable positions. If none of these steps work, further assistance from authorized service may be needed.
W
William SimmonsAug 17, 2025
Why does my Bosch 5412L blade bind, jam, burn wood, or make rough cuts?
- M
  mcleandouglasAug 17, 2025
  The blade may bind, jam, burn wood, or make rough cuts due to several reasons. It could be due to improper operation. Refer to the Basic Saw Operation section for guidance. Another cause could be a dull blade, in which case you should replace or sharpen the blade. Also, ensure you are using the correct blade; replace it with a 12” diameter blade designed for the material you are cutting. Finally, a bent blade can cause these issues, so replace the blade if it is bent.
M
michael55Aug 20, 2025
Why can't I move the miter adjustment on my Bosch 5412L Saw?
- R
  robertreedAug 20, 2025
  If you cannot move the miter adjustment, it may be because the lock knob is tightened or the detent is engaged; loosen the lock knob or move it out of the detent. Another reason could be sawdust under the table; vacuum or blow out the dust, wearing eye protection. If the blade interferes with the fence, you should contact authorized service.
W
William HicksAug 25, 2025
Why does my Bosch 5412L Saw tool vibrate or shake?
- R
  Rebecca HartAug 25, 2025
  If your tool vibrates or shakes, it could be due to a saw blade that is not round or is damaged, in which case you should replace the blade. Another possible cause is a loose saw blade; tighten the arbor screw. If these steps do not resolve the issue, you should contact authorized service.
L
Larry FigueroaAug 27, 2025
What to do if the head assembly of my Bosch 5412L does not slide freely?
- P
  Paige GonzalezAug 27, 2025
  If the head assembly does not slide freely, check the slide rail lock knob. If it is tightened, loosen it. If the head assembly slides forward and back when making a chop cut, ensure the slide rail lock knob is tightened and push the head assembly completely against the stop.
K
Kristin Ramos DVMAug 30, 2025
How to fix a Bosch 5412L when the brake does not stop the blade?
- S
  Scott BridgesAug 30, 2025
  If the brake does not stop the blade within about 5 seconds, it could be due to several reasons. The brushes may not be seated properly, might be sticking slightly, or could be worn. Inspect, clean, or replace the brushes, referring to the Maintenance Section for guidance. The motor might be overheated from using a dull or excessively heavy blade, using a non-recommended accessory, or from rapid on/off cycling; use a sharp blade. Also, check if the blade bolt is loose and tighten it. If none of these steps resolve the issue, consult authorized service.
W
wileyjoshuaSep 3, 2025
Why won't the head assembly of my Bosch 5412L Saw fully rise or the blade guard fully close?
- S
  Shelby HendersonSep 3, 2025
  The head assembly might not fully rise, or the blade guard might not fully close due to several reasons. It could be due to a part failure, which requires authorized service. Another cause could be that the pivot spring or guard spring was not replaced correctly after service, also requiring authorized service. Ensure the cover plate is tightened after replacing the blade, as described on page 11. Finally, sawdust accumulation can cause this issue, so clean the head assembly.
J
justinhutchinsonSep 6, 2025
Why doesn't the blade of my Bosch 5412L completely cut the workpiece?
- J
  Joseph JohnsonSep 6, 2025
  If the blade does not completely cut the workpiece, it may be because the depth stop screw is adjusted for groove cutting. Refer to the Depth Stop Adjustment section in the Adjustment section for instructions.
R
Robert VargasSep 9, 2025
Why does the bevel setting not hold position on my Bosch Saw?
- J
  Joshua OwensSep 9, 2025
  The bevel setting may not hold its position because the bevel lock lever assembly needs to be tightened. Tighten the bevel lock lever as shown on page 13.

Bosch 5412L Specifications

General

Blade Diameter	12 inches
Motor Power	15 amps
Amperage	15 A
Arbor Size	1 inch
Voltage	120 V
Max Cut Depth at 90°	4 inches
Type	Miter Saw
Cord Length	6 feet
Length	27 inches
Max. Bevel Cut Capacity (Right)	47 °
No Load RPM	3, 800
No-Load Speed	3800 RPM

Summary

Safety Guidelines

General Safety Rules

Covers work area, electrical, and personal safety precautions.

Tool Use and Care Guidelines

Proper techniques and precautions for using the miter saw.

Miter Saw Specific Safety Rules

Safety rules tailored for miter saw operations and setup.

Operational Safety Precautions

Safe practices for workpiece handling and cutting execution.

Tool Warnings and Danger Zones

Highlights specific warnings and designated danger areas on the tool.

Electrical Safety and Extension Cords

Guidelines for double insulation and proper extension cord use.

Electrical Requirements

Circuit Requirements and Electric Brake

Details on power circuit needs and the saw's electric brake function.

Getting To Know Your Miter Saw

Parts Identification and Description

Identifies and describes the various components and features of the miter saw.

Assembly Instructions

Tools Needed and Unpacking

Lists required tools and steps for unpacking and checking contents.

Blade Installation and Removal

Procedures for safely installing and removing the saw blade.

Dust Collection System Setup

Instructions for assembling the dust elbow and dust bag.

Adjustments and Calibration

Bevel Angle Adjustments

Procedures for checking and calibrating the 0° bevel setting.

Blade Alignment and Fence Calibration

Steps for calibrating the blade at 45° and ensuring squareness to the fence.

Miter Scale and Kerf Insert Adjustments

Adjusting the miter scale indicator and kerf inserts.

Depth Stop Adjustments

How to set the depth stop for full cuts and grooves.

Placement and Mounting

Lifting and Transporting the Saw

Safe methods for lifting, carrying, and transporting the miter saw.

Workbench Mounting

Guidelines for securely mounting the saw to a workbench.

Portable Mounting and Handle Adjustments

Using clamps for mounting and adjusting the switch handle position.

Basic Saw Operations

Body and Hand Positioning

Correct posture and hand placement for safe and effective cutting.

Workpiece Support and Clamping

Techniques for supporting and securing workpieces using clamps and extensions.

Switch Activation and Auxiliary Fences

Safety features for switch operation and using auxiliary fences.

Detent Override and Sliding Fences

Using detent override for precise angles and managing sliding fences.

Saw Operations: Cutting Techniques

Chop and Slide Cuts

Step-by-step instructions for performing chop and slide cutting operations.

Miter and Bevel Cuts

Procedures for making mitered and beveled cuts on the workpiece.

Bevel Cut Details

Further details and range settings for bevel cuts.

Compound and Grooving Cuts

Performing cuts with combined angles and creating grooves.

Molding Cutting Procedures

Instructions for cutting base and crown molding accurately.

Special Cutting Techniques

Guidance for cutting bowed or round materials and making auxiliary fences.

Maintenance and Troubleshooting

Routine Maintenance and Cleaning

Steps for servicing carbon brushes, drive belts, and cleaning the tool.

Lubrication and Blade Care

Information on tool lubrication, bearing maintenance, and blade care.

Troubleshooting Guide

Solutions for common electrical and mechanical problems.

Accessories

Available Accessories

List of optional accessories to enhance saw functionality.

Warranty Information

Limited Warranty Details

Details on the product's warranty coverage and terms.

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