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Makita HR2451 User Manual

Makita HR2451
16 pages
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INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
ENGLISH
Rotary Hammer
MODEL HR2450
MODEL HR2450F
MODEL HR2450X
MODEL HR2450T
MODEL HR2450FT
MODEL HR2451
003571
DOUBLE
INSULATION

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Makita HR2451 Specifications

General IconGeneral
Power SourceCorded
Impact Energy2.7 J
Chuck TypeSDS-Plus
Power Input/Consumption780 W
Max. Drilling Diameter in Concrete24 mm
Max. Drilling Diameter in Steel13 mm
Max. Drilling Diameter in Wood30 mm
No Load Speed1100 rpm

Summary

Specifications and Symbols

Tool Specifications

Details capacities, speed, dimensions, and weight for different models.

Symbols Explained

Explains the meaning of symbols used on the tool for proper operation.

Intended Use and Power Supply

Defines the tool's purpose and requirements for safe electrical connection.

Noise and Vibration Data

Provides noise and vibration levels for European users and safety recommendations.

EC Declaration of Conformity

Lists compliance with relevant European safety and EMC directives.

General Safety Instructions

Safe Work Practices

Guidelines for keeping the work area clean and safe, and child safety.

Tool Operation Safety

Instructions on using the right tool, proper dress, and safety gear.

Maintenance and Cord Safety

Advice on tool maintenance, cord care, and securing workpieces.

Operational Awareness

Tips on staying alert, checking parts, and avoiding unintentional starts.

Additional Safety Rules

Tool Handling and Environment

Rules for handling tools in various conditions and ensuring secure footing.

Usage Precautions

Guidance on bit security, vibration effects, and safe operating practices.

Functional Description

Switch and Lock Button Operation

How to operate the switch trigger and lock button for starting and continuous use.

Lighting Feature

Instructions for using the built-in lamp for illumination.

Reversing Switch Function

How to change the rotation direction and important cautions for its use.

Chuck and Action Mode Selection

Quick Change Chuck for SDS-plus

Procedure for removing and attaching the SDS-plus quick change chuck.

Drill Chuck Attachment

Procedure for attaching the quick change drill chuck.

Selecting Action Modes

How to select between 'Rotation with hammering' and 'Rotation only' modes.

Assembly and Greasing

Hammering Only Mode

Instructions for using the 'Hammering only' mode for demolition tasks.

Torque Limiter Explanation

How the torque limiter works and precautions to take when it actuates.

Side Grip Installation

How to properly install and adjust the auxiliary side grip for safety.

Bit Grease Application

Guidance on applying bit grease for smooth chuck action and longevity.

Bit Installation and Angle Adjustment

Installing and Removing Bits

Step-by-step guide for inserting and removing drill bits securely.

Bit Angle Adjustment

How to adjust the bit angle for chipping, scaling, or demolition operations.

Operation Procedures

Depth Gauge Usage

How to use the depth gauge for drilling holes of uniform depth.

Dust Cup Installation

Instructions for attaching the dust cup to prevent dust during drilling.

Hammer Drilling Operation

Steps for performing hammer drilling, including pressure and hole clearing.

Specialized Operations

Blow-out Bulb Use

Using the optional blow-out bulb to clean dust from holes.

Chipping, Scaling, Demolition

How to operate the tool for chipping, scaling, and demolition tasks.

Drilling in Different Materials

Drilling in Wood or Metal

Using the drill chuck for drilling wood and metal, with operational cautions.

Chuck and Bit Handling Cautions

Important warnings about using the chuck, excessive pressure, and stuck bits.

Maintenance and Accessories

Diamond Core Drilling

Specific instructions for diamond core drilling operations.

Maintenance and Repair

Guidance on tool inspection, maintenance, and authorized repairs.

Recommended Accessories

List of recommended accessories for use with the tool.

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