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Safety and operating instructions
4. Release the valve pin (B), whereupon the piston
rod will move outwards again.
5. Move the throttle lever (A) forward into the
working position.
The feed control knob does not need to be touched
throughout this operation.
When taking a break
Lay down the rock drill on a stone, wooden plank
♦
or similar object, so as to prevent drill cuttings and
other foreign matter from entering the chuck.
Turn off the water pressure before the air pressure.
♦
Run the rock drill for a few seconds to clean out
water and moisture after the water has been shut
off.
Maintenance
Regular maintenance is a basic requirement for the
continued safe and efficient use of the machine.
Follow the maintenance instructions carefully.
♦
Before starting maintenance on the machine, clean
it in order to avoid exposure to hazardous
substances. See "Dust and fume hazards"
♦
Use only authorised parts. Any damage or
malfunction caused by the use of unauthorised
parts is not covered by warranty or product liability.
♦
When cleaning mechanical parts with solvent,
comply with appropriate health and safety
regulations and ensure there is satisfactory
ventilation.
♦
For major service of the machine, contact the
nearest authorised workshop.
♦
After each service, check that the machine's
vibration level is normal. If not, contact the nearest
authorised workshop.
Differences between original
parts and pattern parts
When buying a part, the first thing to do is to verify
that the part is an Atlas Copco part. Most parts can
be identified.
20
Rock drill parts are normally marked with a part
number and the Atlas Copco identity mark which is
a circle with a rock drill. In a few cases the part is
marked either with the circle only or the part number
only.
Rubber and plastic parts are not normally marked.
Competitors that copy our parts often mark major,
expensive parts. Some parts have only the part
number, but some of them also have an identity mark
in the form of the initials of the manufacturer's name.
Part numbers on the pattern parts are mostly
stamped by hand which results in irregularities. The
part numbers stamped by Atlas Copco are regular
and the individual figures are the same size. In
addition the depth of the figures and the spacing
between the figures in each group are the same.
Every day
Before undertaking any maintenance or changing
the insertion tool on pneumatic machines, always
switch off the air supply and bleed the machine by
depressing the start and stop device then disconnect
the air hose from the machine.
♦
Clean and inspect the machine and its functions
each day before the work commences.
♦
Conduct a general inspection for leaks and
damage.
♦
Check that the air inlet nipple is tightened and that
the claw coupling is free from damage.
♦
Check the function of the throttle handle. Make
sure that it moves freely up and down.
♦
Check the function of the retainer. Make sure that
it locks the drill steel.
♦
Change damaged parts immediately.
♦
Replace worn components in good time.
Check the through bolts of the machine. Make
♦
sure that they are tightened.
If the machine is equipped with a silencer, check
♦
for damage.
© 2012 Atlas Copco Construction Tools AB | No. 9800 0760 71b | 2012-06-30
BBD 94W, 94WE, 94WS
Original instructions
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