Hitachi DH 50MB User Manual

MODEL ROTARY HAMMER
MODÈLE MARTEAU ROTATIF
MODELO MARTILLO GIRATORIO
DH 50MB
DOUBLE INSULATION
DOUBLE ISOLATION
AISLAMIENTO DOBLE
MODE D’EMPLOI ET INSTRUCTIONS DE SECURITE
AVERTISSEMENT
Une utilisation incorrecte et dangereuse de cet outil motorisé peut entraîner la
mort ou de sérieuses blessures corporelles!
Ce mode d’emploi contient d’importantes informations à propos de la sécurité de
ce produit. Prière de lire et de comprendre ce mode d’emploi avant d’utiliser l’outil
motorisé. Garder ce mode d’emploi à la disponibilité des autres utilisateurs avant
qu’ils utilisent l’outil motorisé.
INSTRUCTION MANUAL AND SAFETY INSTRUCTIONS
WARNING
Improper and unsafe use of this power tool can result in death or serious bodily
injury!
This manual contains important information about product safety. Please read
and understand this manual before operating the power tool. Please keep this
manual available for others before they use the power tool.
MANUAL DE INSTRUCCIONES E INSTRUCCIONES DE SEGURIDAD
ADVERTENCIA
¡La utilización inapropiada e insegura de esta herramienta eléctrica puede resultar
en lesiones serias o en la muerte!
Este manual contiene información importante sobre la seguridad del producto.
Lea y comprenda este manual antes de utilizar la herramienta eléctrica. Guarde
este manual para que puedan leerlo otras personas antes de que utilicen la
herramienta eléctrica.
5

Hitachi DH 50MB Specifications

General

Drilling Capacity in Concrete	50 mm
Drilling Capacity in Steel	13 mm
Drilling Capacity in Wood	40 mm
Sound Pressure Level	95 dB(A)
Sound Power Level	106 dB(A)
Chuck Type	SDS-Max

Summary

Instruction Manual and Safety Instructions

Warnings and Safety Information

Multilingual warnings about potential hazards and the need to read the manual.

Important Information

Meanings of Signal Words

Explains the meaning of signal words like WARNING, CAUTION, and NOTE in the manual.

Safety

General Safety Rules

Outlines fundamental safety precautions for work area, electrical, and personal safety.

Save These Instructions

Instructs users to keep the manual for future reference and for other users.

Tool Use and Care

Guidelines for using the tool correctly, maintaining it, and handling accessories safely.

Service

Information regarding qualified personnel for tool service and replacement parts.

Specific Safety Rules and Symbols

Specific Safety Rules

Detailed safety rules covering tool operation, handling, maintenance, and electrical precautions.

Symbols and Definitions

Defines various symbols used on the tool and in the manual, including electrical and measurement units.

Functional Description

Name of Parts

Identifies and labels the main components of the rotary hammer.

Specifications

Lists the technical specifications of the Hitachi DH 50MB rotary hammer.

Assembly and Operation

Applications

Describes the different functions and uses of the rotary hammer.

Prior to Operation

Steps to take before operating the tool, including power source and environment checks.

How to Install Tool

Instructions for attaching and detaching SDS max shank bits and other tools.

Regulating Rotations and Hammering

How to adjust the electronic control circuit for speed and hammering frequency.

How to Use

Step-by-step guidance on how to perform drilling and hammering operations.

How to Chisel or Crush

Instructions for using the tool for chiseling or crushing concrete.

Drilling at "Rotation + Hammering"

Procedure for setting the tool to the rotation and hammering mode.

Switching to "Hammering"

Steps to switch the selector lever to the hammering-only mode.

Fixing Working Positions

How to adjust the working position for tools like chisels.

Install the Stopper

Instructions for installing and adjusting the stopper for depth control.

Warming Up

Procedure for warming up the tool in cold regions for proper lubrication.

Using Taper Shank Drill Bits

Guide on using drill bits with taper shanks and adaptors.

Using Drill Chuck, Chuck Adaptor

Instructions for attaching and using drill chucks and adaptors for rotation-only use.

How to Use the Core Bit

Mounting

Steps for mounting the core bit and its shank to the rotary hammer.

How to Bore

Instructions for performing boring operations using the core bit.

Dismounting

Procedure for safely removing the core bit shank after use.

Maintenance and Inspection

Inspecting Drill Bits and Screws

Guidelines for checking drill bit sharpness and ensuring all screws are tight.

Motor Maintenance

Precautions for maintaining the motor unit to prevent damage.

Carbon Brush Replacement Indicator

Explains the function of the red indication lamp for carbon brush replacement.

Inspecting Carbon Brushes

Details on checking carbon brush wear and potential motor trouble.

Replacing Grease

Instructions and schedule for replacing the grease in the machine.

Service and Repairs

Information on authorized service centers and the use of genuine replacement parts.

Service Parts List

Advice on using the parts list when requesting repairs or maintenance.

Accessories

Standard Accessories

Lists the accessories included with the power tool.

Optional Accessories

Information on separately sold optional accessories and how to order them.

Drilling and Boring Operations

Details on various drill bits and adaptors for different drilling tasks.

Attachment Operations

Information on using attachments for bolt anchoring and crushing.

Cutting and Shaping Operations

Accessories for groove digging, asphalt cutting, and surface roughing.

Specialized Operations

Accessories for digging and tamping applications.

Warning

Health and Environmental Precautions

Warning regarding chemicals in construction dust and recommended protective measures.