TM 5-3805-280-10
Safety
be ready to activate the cabin emergency stop if need
be.
communication must be established in a reli-
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able manner.
Make sure any hand signal will be perfectly
understood.
the operator must make sure the following
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safety decal is affixed on the drill guide to warn the
service man of risks incurred.
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6 N0 /
N
Before starting work, the operator will make sure
there are no buried electrical, gas, water or other
Moving parts can caus svr
pipes or lines.
injury or dath.
Always kp clar of moving drill,
Always be aware of previously drilled holes, and
fd chain, hoss and drill stl
systm.
where they are located : any open hole can cause se-
vere injury to the operator or someone else. The loss
the service man must be informed about the
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of tools, drill rods, drill bits or any other item can occur.
use of the emergency stop mounted on the guide.
Always have the cabin door closed and the dust
8
6 N0 /
N
collector running when drilling to prevent respiratory
damage.
Keep all work areas clean and orderly.
ROCK DRILL MAINTENANCE
Keep hands, arms, legs and clothing away from
Shock hazard will caus svr injury
or dath.
moving or rotating parts.
Do not position any part of machin
within 28 ft. (7,9 m/ of any lctric
Only use genuine replacement parts.
powr lin.
Stopping the drill for mainte-
When rising the guide, take care of any overhead
lines.
nance or bit change etc...
Always maintain a minimum distance of 25 Ft.
Prior to leaving the operators compartment, the
(7.6 m) distance between the machine and any
excavators hydraulic safety arm must be raised to
overhead lines during any operation.
lock in the machines safety switch. This renders all
controls inoperable thus preventing any unwanted
The operator will make sure that everybody
movement.
stands clear from the machine in operation and stays
at a distance of 7 meters (25 ft.).
Hydraulic cylinder
Nevertheless, some operations may need people
to enter the restricted area (checking of coupling tem-
The hydraulic cylinder is equipped with 2 load
perature during feed thrust adjustment for instance).
sustaining valves.
On such an occasion :
The loadsustaining valves allow the disconnect-
the operator must supervise, from the cabin,
ing of the hydraulic hoses from the cylinder if they
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the safety of the service man doing the work. He must
need to be changed. But :
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