Attaching The Pusher Leg To The Rock Drill; Lubrication; Pressure Adjustment; Air Pressure - Atlas Copco 72D Instrucciones De Seguridad Y De Funcionamiento

Safety and operating instructions
RH 656 W rock drill
The attachment is fitted to the rock drill by clamping
it on the side bolts.
Attaching the pusher leg to the
rock drill
The pusher leg must be fixed to the rock drill by
means of the bayonet coupling.
14
ALF 72D, 72D-1, 67/80D, BMK 62S, BMK 91RS

Lubrication

The rock drill is lubricated with oil mixed with
compressed air, which is taken to the parts that need
continuous lubrication. Oil is metered into the
compressed air using an Atlas Copco BLG 30 or
CLG 30 lubricator connected to the air line.
Use Atlas Copco Rock Drill AIR-OIL which is
specially developed for BBC, BBD and RH pneumatic
Rock drills. Rock Drill AIR-OIL is readily
biodegradable according to OECD 301 and has high
film strength that can withstand heavy loads. If Rock
Drill AIR-OIL is not available use a mineral-based air
tool oil with the properties recommended in the table
below.
Temperature range °C
(°F)
-30 to 0 (-22 to +32)
-10 to +20 (+14 to +68)
+10 to +50 (+50 to +122)

Pressure adjustment

Air pressure

Ensure that the compressor can deliver the required
air pressure of 4–6 bar (58 – 87 psi) to the machine.
1. High pressure causes rough operation and
excessive wear.
2. Low pressure results in a slow drilling speed.

Calibrate the correct air pressure

Use the Atlas Copco (9090 0550 80) pressure gauge
to check the air pressure when the rock drill is
running. The pressure should be measured close to
the inlet nipple. Recommended operating pressure
is 6 bar (87 psi).
The pressure gauge is equipped with a needle which
is pressed into the hose to measure the pressure
inside.
© 2012 Atlas Copco Construction Tools AB | No. 9800 0680 90c | 2012-07-04
Viscosity grade (ISO
3448)
ISO VG 32-68
ISO VG 68-100
ISO VG 100-150
Original instructions