Atlas Copco Secoroc YT29SA Manual de instruções do operador - Página 5

Procurar online ou descarregar pdf Manual de instruções do operador para Perfurar Atlas Copco Secoroc YT29SA. Atlas Copco Secoroc YT29SA 11 páginas. Pusher leg rock drill

Imprimir página

YT29SA

Fitting the working tool

1. Pull the retainer upwards in the direction of the arrow (see picture below),

until the front portion of the retainer is able to accommodate the working tool

collar.

2. Insert the drill in the chuck.

3. When the drill bottoms, push back the retainer to lock it.

Removing the working tool

1. Pull the retainer upwards in the direction of the arrow until the working tool

collar disengages from the front of the retainer.

2. Pull the working tool out.

3. Push back the retainer.

Controls

Throttle lever

The rock drill is equipped with a throttle lever for regulating both the compressed

air to the percussion mechanism and the flushing water.

A. Extra blowing, water flushing off, impact and rotation off.

B. Stop position, air and water off

C. Low throttle, air to pusher leg, water flushing

D. Medium throttle

E. Full throttle

Oil regulating valve

The oil dosage is adjusted with a screwdriver.

Check that sufficient lubrication is obtained by putting your hand in front of the

exhaust port while adjusting the regulating valve. If the hand is covered by a thin

film of oil after a few seconds, the lubricator has been correctly adjusted.

The amount of oil going into the rock drill increases when turning the valve

counter-clockwise, and it decreases when turning the valve clockwise. Oil

consumption is

2.5-6 ml/minute.

Note! Tighten the nut after adjustment.

Note! To much oil will have negative effects on the operation whilst to little will

result in damage to parts as the temperature rises during operation.

Drilling

Starting the rock drill

1. Open the main valve for compressed air.

2. Open the cock for the flushing water.

3. Adjust the feed control (on the pusher leg) to give a suitable feed force for

collaring the hole.

4. Align the rock drill so that the working tool touches the desired collaring point.

5. Move the throttle lever forward a little, which will start water flushing,

percussion and rotation.

6. Collar the hole with reduced feed force.

7. Move the throttle lever fully forward once the working tool has gained a

secure footing in the rock.

8. Adjust the feed force so that the maximum penetration rate is obtained.

Note! Do not bend the working tool as this will increase wear of the shank bushing

and piston. Furthermore, it can also affect drilling efficiency and increase the

risk of working tool breakage.

Stopping the rock drill

Pull the throttle lever backwards, which will stop percussion, rotation and flushing

water.

Blow-cleaning the drill hole

CAUTION

Move to the side and cover your eyes before starting to blow-clean the drill hole.

When blow-cleaning, particles and dirty flushing water can emerge at speed from

the drill hole.

Always wear impact resistant eye protection with side protection to avoid

injury.

Make sure that no co-workers are in range when blow-cleaning.

If powerful blow-cleaning of the drill hole is required, turn the throttle lever fully

backwards beyond the stop position for extra blowing, whereupon the rock drill

stops. This can be done during drilling. When the drill hole is clean, turn the throttle

lever forwards again to re-start the rock drill.

YT29SA