Compressed Air Connection - Atlas Copco GTG21 F120-13 Bedienungsanleitung

Turbine grinders

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Safety and operating instructions

ISO 11148-7

Technical file available from:

Quality Manager, Atlas Copco Industrial Technique,

Stockholm, Sweden

Stockholm, 1 July 2013

Tobias Hahn, Managing Director

Signature of issuer

Installation

• Adjust the support handle to a suitable position.

Note – that the attaching arm can be turned upside

down to move the handle further away from the

front of the machine.

• Attach the grinding equipment according to fig.

The machine has a one key wheel change. To lock

the spindle rotation push the locking lever towards

the spindle.

• Adjust the wheel guard for best protection of op-

erator and hand gripping the support handle.

• Connect the machine to the air inlet.

Blow out the hose before connecting.

The machine is designed for a working pressure

(e) of 6.3 bar = 630 kPa. This tool does not require

lubricated air.

• The throttle valve lever may only be activated

after pushing the lever arm catch.

• To change the backing flange use the flange and

the pin key – Optional.

• Note – Before starting the machine, read the sep-

arate safety instruction for grinding.

Air quality

• For optimum performance and maximum machine

life we recommend the use of compressed air with

a maximum dew point of +10°C. We also recom-

mend the installation of an Atlas Copco refrigera-

tion-type air dryer.

• Use a separate air filter of type Atlas Copco FIL.

This filter removes solid particles larger than 15

microns and also removes more than 90 % of li-

quid water. The filter must be installed as close

as possible to the machine/equipment and prior

to any other air preparation unit such as REG or

DIM (please see Air Line Accessories in our main

catalogue). Blow out the hose before connecting.

Models which need air lubrication:

• The compressed air must contain a small quantity

of oil.

We strongly recommend that you install an Atlas

Copco oil-fog lubricator (DIM). This should be

set according to air consumption by the air line

tool according to the following formula:

L = Air consumption (litre/s).

(May be found in our sales literature).

D = Number of drops per min (1 drop = 15 mm

L* 0.2 = D

this applies to the use of long work cycle air line

tools. A single point lubricator type Atlas Copco

Dosol can also be used for tools with short running

cycles.

Information about Dosol settings may be found

under Air Line Accessories in our main catalogue.

Lubrication-free models:

• In the case of lubrication-free tools it is up to the

customer to decide on the peripheral equipment

to be used. However, it is no disadvantage if the

compressed air contains a small quantity of oil

e.g. supplied from a fog lubricator (DIM) or Dosol

system.

• Note – This does not apply to turbine tools, which

should be kept oil free.