Hilti DC 500 Owner's manual

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acs

er

Initial operation

Switching on/off

The on/off switch consists of 2 control elements, the release button 10 and the

switch 11.

To switch on: 1. Press button 10

(to

release).

2. Press

switch

11

(to

switch on).

The

machine

runs

as

long

as switch 11

is

depressed.

To switch off: Release switch 11.

Testing new discs

Allow

the

machine

to

run for

one

minute

under no load.

lf

the disc

vibrates

it must

be

replaced

immediately.

Keep discs free of

grease

and

protect

from impact damage. Follow the require-

ments

of ANSI

87.1

on the use and care of discs.

Electronic

control

Starting current regulator

The starting curent required

by the machine is several times higher

than

the

nominal cunent inout.

The starting cunent regulator limits the

current drawn by

the

machine when

starting, helping

prevent

the

mains fuse from tripping. lt also ensures that the

machine starts smoothly without

a

jolt.

Constant-speed electronics

The constant-speed

electronic control system

keeps

the running speed almost

constant under load or no-load conditions. This oermits materials to be oround

or cut optimally as

a

result of the

constant disc speed.

Protection

devices

Thermal motor

protection

The thermal

motor orotection circuit monitors current consumotion and motor

temperature. This

prevents

the machine

from overheating.

lf the motor is

overloaded while working, the machine will stop, and

will

only

restart when

pressure

on the

grinding

or

cutting

disc is reduced.

The

permitted

overload is not

a certain specified

value,

but depends on motor

temoerature.

Restart interlock

This

protection

device

prevents

uncontrolled restading of the machine after

interruption of the

power

supply, e.

g.

when the

mains

plug

is

accidentally dis-

connected by another

person.

Even after the supply cord has

been

reconnected to the mains

supply,

the

machine

can only be restarted by operating the on/off switch intentionally. The

machine must first be switched off before it

can

be restarted.

Seruice indicator

The service indicator LED 16 lights up or

begins

to flicker approximately 8 hours

before the

automatic cut-out carbon brushes finally switch off the machine.

LED

16 will no longer be light up once the automatic cut-out carbon brushes

have switched off the machine

after

this

approx. 8 hour

period,

The

machine must then be serviced bv Hilti.

Changing discs

Alwayvdlsconnect the mains

plug

from the mains supply before working on the

machine!

Grinding discs: Lock the spindle by

pressing

the spindle lockbutton 7.

The

spind-

le lockbutton

7 should only be

pressed

once spindle rotation has stopped. Relea-

se the clamping nut 2 using the

wrench.

Clean

the

grinding

disc,

clamping

flange

4 and clamping nut 2.

Permitted

{isc

types:

Use only

grinding

discs

which

are

approved for

a speed

of

at least.11,000

r.p.m.

Use_only

synthetic resin-bonded,

fibie+einforced grinding

discs which

are approved

for a

peripheral

speed

of B0 m/sec.

rype

Ma.-

Md.

[/a.

pqiphsa]

fginforced

qrindinq

discs

125

mm

11500

r.p.m.

g0

m/sec.

Always ob*ruettr-@e

disc tabet.

Operation

Rough

grinding

F91p9st

19^srlttq.with

rough

grinding

(smoothing)

discs, hotd

the disc

at

an angte

of 30 to 40'to

the workino

surface.

Materials

containing

asblestos

must

not

be

ground.

Fire risk

Ensure that

no flammable

materials

are located

within

a

wide area

of

where

sparks fly

when

cutting and

grinding

metal.

Carc and

maintenance

Always disconnect

the mains

plug

from the

mains

supply

before

working

on

the machine!

Keep the

cooling

slots in

the motor

housing

clean

and free

of

obstructions.

clean

out the motor

at regular

intervals

(approx.

every

four weeks),

if

possible,

using

a

let

ot compressed

air.

The machine

requires

no other

maintenance.

Should the

machine

develop

a fault

despite

having

been

subjected

to careful

m.anufacturing

and inspection

procedures,

it

should

be repaired

by

an authorised

Hilti

service centre.

Accessories

Abrasive

grinding

discs

Warrantv

Hilti

warranis

that

the tool

supplied

is free

of

defects in

material

and

wod<manship.

This wananty

is

valid

so long

as the tool

is

operated

and handled

correctly,

cleaned

and

serviced

properly

and in

accordance

with the Hilti

Operati,ng Instructions,

all wananty

claims bre

made within

12 months

from

the

date of the

sale

(invoice

date),

and the

technical

system

is

maintained.

This

means that

only original

Hilti

consumables,

componerits

and spare

parts

may

be

used in

the tool.

This

wananty

provides

the

free-of-charge

repbir

or replacement

of defective

parts

only.

Parts requiring

repair

or replacemint

ds a resuli

of normal

wear and

tear are not

covered

by

this wananty.

Under no

circumstances

will

Hilti

be ogligited

tor

direct, indirect

incidental

or consequential

damages,

losses

or expenses

in

connection

irvitr,

or

bv

reasolr

oJ, the

_use

of, or inability

to

use the

tool for

any

purpos6.

Hilii

-specifically

excludes

the implied

warranties

of merchantaliiliry

dnd fitress

for

a

padicular

purpose,

For

repair

or.replacement,.send

tool

and/or

immediately

upon

discovery

of the

defect

to the address

of the local

Hilii

marketing

organizjtion

orovided.

This constitutes

Hilti's

entire

obligation

with

regard to

wananty

and

supersedes

all

prior

or

contemporaneous

bomments

and oral

or wriiten

agrbements

conceming

warranties.

Hilti DC 500 Owner's manual

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Hilti DC 500 Owner's manual

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