Every Day; Checking For Wear; Periodic Maintenance - Atlas Copco BBD 12 Sicherheits- Und Betriebsanleitung

Safety and operating instructions
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.
20

Checking for wear

1. Check the wear in the chuck bushing using the
Atlas Copco (3091 0038 00) gauge (22 mm).
If the wear limit has been exceeded, the drill steel
shank will wear more quickly, or become
deformed. This will lead to stoppages and
increased drill-steel consumption.
2. Check the hoses, couplings and controls for
leakage and damage.
3. Check that the rock drill is receiving enough
lubrication. Fill the lubricator if necessary.
4. Drain the water separator.

Periodic maintenance

After each operating period of approximately 100
working hours or three times a year the machine
must be dismantled and all parts be cleaned and
checked. This work must be performed by authorized
staff, trained for this task.
© 2010 Atlas Copco Construction Tools AB | No. 9800 0937 90 | 2010-01-01
BBD 12, 15
Original instructions