Personnel hearing can be
PERMANENTLY DAMAGED if exposed
to constant high noise levels of 85 dB (A)
or greater. Wear approved hearing
protection devices when working in high
noise level areas. Personnel exposed to
high noise levels shall participate in a
hearing conservation program in
accordance with TB MED 501. Hearing
loss occurs gradually but becomes
permanent over time.
To start drilling, push throttle button (1) to
obtain minimum RPM for ease in making a
Once drill bit is well started, release throttle button (1) to increase speed for drilling, making sure that drill does
not jump out of the hole.
When drilling, apply moderate pressure only. Greater pressure will not increase drilling speed, and may place
excessive strain on the drill rod.
If drill bit catches in cracks of rocks, engine speed will increase, and there will be a tendency for the body of the
Paving Breaker to rotate. To free the bit, lift the Paving Breaker slightly while running or turn it off and use a
In soft-rock drilling, bit rotation may be impeded. Simply raise drill momentarily and continue drilling.
Drilling in clay will be facilitated by flushing the hole with water.
In extremely sandy conditions perform step g. every hour or damage may result.
When drilling in sandy or dusty conditions:
(1) Do not run Paving Breaker more than 10 hours without checking fuel tank and air cleaner element for
debris and cleaning as necessary (para 2-12).
(2) Clean out front end before storing.