Metabo KHE 76 Operating instructions

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ENGLISH

5

ENG

1 Specified Use

2 General Safety Instructions

3 Special Safety Instructions

4 Overview

5 Special Product Features

6 Commissioning

6.1 Assembly / setting of additional

handle

7 Use

7.1 Attaching and removing tools

7.2 Setting the operating mode

7.3 Adjusting the chisel position

7.4 Adjusting the impact force

7.5 Switching on and off

7.6 Metabo VibraTech (MVT)

8 Cleaning, Maintenance

9 Tips and Tricks

10 Troubleshooting

11 Accessories

12 Repairs

13 Environmental Protection

14 Technical Specifications

The KHE 76 is designed for hammer drilling and

chiselling in concrete, bricks, stone and similar

materials when used in combination with appro-

priate accessories.

The user bears sole responsibility for damage

caused by improper use.

Generally accepted accident prevention regula-

tions and the enclosed safety information must be

observed.

WARNING – To reduce the risk of injury,

user must read instruction manual.

For your own protection and for the

protection of your power tool pay atten-

tion to all parts of the text that are

marked with this symbol!

General Power Tool Safety Warnings

WARNING Read all safety warnings and

all instructions. Failure to follow the warn-

ings and instructions may result in electric shock,

fire and/or serious injury. Save all warnings and

instructions for future reference! The term

"power tool" in the warnings refers to your mains-

operated (corded) power tool or battery-operated

(cordless) power tool.

1) Work area safety

a) Keep work area clean and well lit. Cluttered

or dark areas invite accidents.

b) Do not operate power tools in explosive

atmospheres, such as in the presence of

flammable liquids, gases or dust. Power

tools create sparks which may ignite the dust

or fumes.

c) Keep children and bystanders away while

operating a power tool. Distractions can

cause you to lose control.

2) Electrical safety

a) Power tool plugs must match the outlet.

Never modify the plug in any way. Do not

use any adapter plugs with earthed

(grounded) power tools. Unmodified plugs

and matching outlets will reduce risk of elec-

tric shock.

b) Avoid body contact with earthed or

grounded surfaces, such as pipes, radia-

tors, ranges and refrigerators. There is an

increased risk of electric shock if your body is

earthed or grounded.

c) Do not expose power tools to rain or wet

conditions. Water entering a power tool will

increase the risk of electric shock.

d) Do not abuse the cord. Never use the cord

for carrying, pulling or unplugging the

power tool. Keep cord away from heat, oil,

sharp edges or moving parts. Damaged or

entangled cords increase the risk of electric

shock.

Original instructions

Dear Customer,

Thank you for the trust you have placed in us by buying a Metabo power tool. Each Metabo power tool

is carefully tested and subject to strict quality controls by Metabo's quality assurance. Nevertheless, the

service life of a power tool depends to a great extent on you. Please observe the information contained

in these instructions and the enclosed documentation. The more carefully you treat your Metabo power

tool, the longer it will provide dependable service.

Contents

1 Specified Use

2 General Safety Instructions

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e) When operating a power tool outdoors, use

an extension cord suitable for outdoor use.

Use of a cord suitable for outdoor use reduces

the risk of electric shock.

f) If operating a power tool in a damp location

is unavoidable, use a residual current

device (RCD) protected supply. Use of an

RCD reduces the risk of electric shock.

3) Personal safety

a) Stay alert, watch what you are doing and

use common sense when operating a

power tool. Do not use a power tool while

you are tired or under the influence of

drugs, alcohol or medication. A moment of

inattention while operating power tools may

result in serious personal injury.

b) Use personal protective equipment.

Always wear eye protection. Protective

equipment such as dust mask, non-skid safety

shoes, hard hat, or hearing protection used for

appropriate conditions will reduce personal

injuries.

c) Prevent unintentional starting. Ensure the

switch is in the off-position before

connecting to power source and/or battery

pack, picking up or carrying the tool.

Carrying power tools with your finger on the

switch or energising power tools that have the

switch on invites accidents.

d) Remove any adjusting key or wrench

before turning the power tool on. A wrench

or a key left attached to a rotating part of the

power tool may result in personal injury.

e) Do not overreach. Keep proper footing and

balance at all times. This enables better

control of the power tool in unexpected

situations.

f) Dress properly. Do not wear loose clothing

or jewellery. Keep your hair, clothing and

gloves away from moving parts. Loose

clothes, jewellery or long hair can be caught in

moving parts.

g) If devices are provided for the connection

of dust extraction and collection facilities,

ensure these are connected and properly

used. Use of dust collection can reduce

dust-related hazards

4) Power tool use and care

a) Do not force the power tool. Use the

correct power tool for your application. The

correct power tool will do the job better and

safer at the rate for which it was designed.

b) Do not use the power tool if the switch

does not turn it on and off. Any power tool

that cannot be controlled with the switch is

dangerous and must be repaired.

c) Disconnect the plug from the power

source and/or the battery pack from the

power tool before making any adjustments,

changing accessories, or storing power

tools. Such preventive safety mea ures reduce

the risk of starting the power tool accidentally.

d) Store idle power tools out of the reach

of children and do not allow persons

unfamiliar with the power tool or these

instructions to operate the power tool.

Power tools are dangerous in the hands of

untrained users.

e) Maintain power tools. Check for misalign-

ment or binding of moving parts, breakage

of parts and any other condition that may

affect the power tool's operation. If

damaged, have the power tool repaired

before use. Many accidents are caused by

poorly maintained power tools.

f) Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp

cutting edges are less likely to bind and are

easier to control.

g) Use the power tool, accessories and tool

bits etc. in accordance with these instruc-

tions, taking into account the working

conditions and the work to be performed.

Use of the power tool for operations different

from those intended could result in a

hazardous situation.

5) Service

a) Have your power tool serviced by a

qualified repair person using only identical

replacement parts. This will ensure that the

safety of the power tool is maintained.

Wear ear protectors. Exposure to noise can

cause loss of hearing.

Use auxiliary handles supplied with the tool.

Loss of control can cause personal injury.

Hold power tools by insulated gripping

surfaces, when performing an operation where

the cutting tool may contact hidden wiring or its

own cord. Cutting accessory contacting a "live"

wire may make exposed metal parts of the power

tool "live" and could give the operator an electric

shock.

Pull the plug out of the plug socket before any

adjustments or servicing are performed.

Always work with the additional handle correctly

installed.

Always hold the machine with both hands using

the handles provided, stand securely and concen-

trate.

3 Special Safety Instructions

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Always wear protective goggles, gloves, a dust

mask and sturdy shoes when working with this

tool.

Ensure that the spot where you wish to work is free

of power cables, gas lines or water pipes (e.g.

using a metal detector).

Always work with the tool attached correctly. Pull

on the tool to check that it is seated correctly. (It

must be possible to move the tool a few centime-

tres in an axial direction.)

When working above ground level, make sure that

the area underneath is free.

Do not touch the tool or parts close to the tool

immediately after stopping work because they

may still be extremely hot and could cause skin

burns.

Always lay the power cable away from the back of

the machine.

A damaged or cracked additional handle must be

replaced. Never operate a machine with a defec-

tive additional handle.

Additional Warnings:California Prop 65 08_2018

Some dust created by

power sanding, sawing,

grinding, drilling, and other construction

activities contains chemicals known to

cause cancer, birth defects or other

reproductive harm. Some examples of

these chemicals are:

• Lead from lead-based paints,

• Crystalline silica from bricks and cement and

other masonry products, and

• Arsenic and chromium from

chemicallytreated lumber.

Your risk from these exposures varies,

depending on how often you do this type of

work. To reduce your exposure to these

chemicals: work in a well ventilated area, and

work with approved safety equipment, such as

those dust masks that are specially designed to

filter out microscopic particles.

SYMBOLS ON THE TOOL:

...........Class II Construction

V...............volts

A...............amperes

Hz.............hertz

W..............watts

BPM.........beat per minute

~ ..............alternating current

n

0

.............rated speed

rpm...........revolutions per minute

See page 3.

1 Additional handle

2 Additional handle holder

3 Star knob for adjusting the clamping power of

the additional handle holder

4 Tool lock

5 Switch button

6 Thread for additional handle

7 Metabo VibraTech (MVT): integrated damping

system

8 Trigger switch

9 Carbon brush service indicator (lamp signal

for pending carbon brush change)

10 Operating indicator (light signal for mains

power supply)

11 Switch for optional impact reduction when

working on soft materials

• Metabo VibraTech (MVT) vibration damper: a

spring-mounted counter-oscillating weight

reduces the vibrations by more than 30%

• Metabo VibraTech (MVT): integrated damping

system in the handles for reduced vibrations

and less stress on the hands

• Additional handle can be attached to the

housing at 3 different points

• Optional impact reduction of up to 30% for

working on softer materials such as brick

• Electronic smooth start-up for precision drilling

• Low-weight cast magnesium gear housing

ensures excellent heat dissipation

• Service indicator e.g. for signalling pending

carbon brush changes and light signal for mains

power supply

Before plugging in, check to see that the

rated mains voltage and mains frequency,

as stated on the rating label, match with your

power supply.

Always use an extension cable with a minimum

diameter of 1.5 mm

2

. The extension cable must be

suitable for the machine power rating (see Tech-

nical Specifications). If using a roll of cable, always

roll up the cable completely.

WARNING

4 Overview

5 Special Product Features

6 Commissioning

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6.1 Assembly / setting of additional handle

For safety reasons, always use the addi-

tional handle (1)supplied.

Option 1

Unscrew the star knob (3). Move the additional

handle to the required angle. Tighten the star knob

(3) firmly to secure the additional handle (1) prop-

erly.

The

additional handle

(1)

must be reliably

secured against turning. Check that the

knob is tight before using the machine.

If

required, tighten the star knob (3) again to

increase the clamping power.

Option 2

Upright working position for reduced stress on the

back

when working on floors:

The additional handle (1) can also be attached to

the gear housing. Unscrew the additional handle

from the handle holder (2), insert in one of the

threads (6) (on the left and right of the gear

housing) by hand and tighten.

7.1 Attaching and removing tools

Before fitting tools, clean shank and apply

special grease enclosed with tool (acces-

sories order no. 6.31800)! Use only SDS-max

tools.

Attaching tools:

Turn tool and insert until it engages. The tool is

automatically locked.

Pull on the tool to check that it is seated

correctly. (It must be possible to move the

tool a few centimetres in an axial direction.)

Removing the tool:

Pull tool lock (4) backwards in direction indicated

by arrow (a) and remove tool (b).

7.2 Setting the operating mode

Turn the switch button (5) to select the desired

operating mode.

Hammer drilling

Chiselling

When a chisel is fitted, only operate

the machine in the chiselling operating

mode .

7.3 Adjusting the chisel position

The chisel can be secured in 12 different positions.

- Insert the chisel.

- Turn the switch button (5) to position .

- Turn the chisel to the required position.

- Turn the switch button (5) to position .

- Turn the chisel until it engages.

When a chisel is fitted, only operate

the machine in the chiselling operating

mode .

7.4 Adjusting the impact force

Slide the switch (11) to adjust the

impact force

(and speed)

setting.

Reduced impact force,

reduced speed

High impact force,

high speed

The correct setting depends on the task in hand.

Example: set the switch to "reduced impact force"

when working on soft, brittle material or trying to

minimise break-off.

Set the switch to "high impact force" when

working on harder materials.

7.5 Switching On and Off

Torque setting:

To start the machine, press the trigger switch (8).

Release the trigger (8) to switch off.

7.6 Metabo VibraTech (MVT)

For reduced vibrations and less stress on the

hands.

Always apply a moderate amount of pressure to

the handle when pushing down the machine and

do not force. Vibrations are reduced most effec-

tively at the central position (7).

Motor cleaning: blow out the machine thoroughly

at regular intervals through the air slots with

compressed air.

Only moderate pressure is required when working

with the machine. Applying excessive pressure

does not increase your working performance and

may decrease the service life of your machine.

In the case of deep bores, pull the drill bit out of the

bore from time to time in order to remove the stone

dust.

7 Use

8 Cleaning, Maintenance

9 Tips and Tricks

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Carbon brush service indicator (9) lights up:

the carbon brushes are almost completely worn

(remaining operating time approx. 30 hours). If the

brushes are completely worn, the machine

switches off automatically. Have an authorised

service centre replace the brushes.

Electromagnetic disturbance:

In individual cases, the speed may fluctuate

temporarily if the machine is exposed to extreme

external electromagnetic disturbances.

Use only genuine Metabo accessories.

If you need any accessories, check with your

dealer.

For dealers to select the correct accessory, they

need to know the exact model designation of your

power tool.

See page 4.

A Extensive drill bit and chisel assortment for a

wide range of applications.

B Special grease (for lubricating the tool shanks)

For a complete range of accessories, see

www.metabo.com or the main catalogue.

Repairs to electrical tools must be carried out by

qualified electricians ONLY!

Contact your local Metabo representative if you

have Metabo power tools requiring repairs. For

addresses see www.metabo.com.

You can download a list of spare parts from

www.metabo.com.

Metabo's packaging can be 100% recycled.

Scrap power tools and accessories contain large

amounts of valuable resources and plastics that

can be recycled.

These instructions are printed on chlorine-free

bleached paper.

Explanatory notes on the specifications on page 2.

Changes due to technological progress reserved.

P

1

= Nominal power input

P

2

= Power output

T = Torque

n

0

= No-load speed

D

1

= Max. drilling diameter in concrete

with impact masonry bits

D

2

= Max. drilling diameter in concrete

with impact core cutters

D

3

= Max. drilling diameter in concrete

with milling cutters

s

max

= Maximum impact rate

W = Single impact energy

C = Number of chisel positions

m = Weight without mains cable

Wear ear protectors!

Machine in protection class II

This tool is for professional use and may slightly

exceed the guide values for current harmonics

when connected to the public low-voltage

network. Before connecting the tool to the public

low-voltage network, therefore, consult your local

power supply company if necessary.

The technical specifications quoted are subject to

tolerances (in compliance with the relevant valid

standards).

10 Troubleshooting

11 Accessories

12 Repairs

13 Environmental Protection

14 Technical Specifications

17026916_0718 KHE 76 NAFTA CP.book Seite 9 Montag, 23. Juli 2018 3:32 15

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Metabowerke GmbH

Metabo-Allee 1

72622 Nuertingen

Germany

www.metabo.com

170 26 9160 - 0718 CP

17026916_0718 KHE 76 NAFTA CP.book Seite 28 Montag, 23. Juli 2018 3:32 15

Metabo KHE 76 Operating instructions

Metabo KHE 76 Operating instructions

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