SWE90UF-2PB Operation & Maintenance Manual
b) Forbid empty hitting
Stop the striking on the moment once the rock is broken,
because continuous empty-hitting may not only damage
the drill rod and flat pins, and the load bearing mechanism.
When rod position is incorrect or when the drill rod is used
as a lever, empty hitting will happen. (the sound is different if
it’s empty hitting.)
c) Forbid to move rock
Forbid using side wall of hammer breaker to move rock,
because this is the main factor to damage the bolts of the
hammer breaker, drill rod, meanwhile, the boom and
mechanical boom will be damaged.
d) Do not use the drill rod as a crowbar
Bolts and drill rod also will be damaged when using the drill rod
as a crowbar.
e) Do not continue to hit over 1 minute
When the hammer breaker continues to hit over 1 minute at
the same place, if the rock still not be crushed, replace hit
point to hit again. The drill rod will be abraded fast if the
striking is kept at one point continuously.
f) Crush a big hard rock starting from the edge
Hitting from the crack or the edge, it’s a relatively easy job,
even if to crush a big hard rock.
g) Operate hammer breaker with proper engine speed
Operate the hammer breaker with a proper engine speed,
high engine speed not only cannot improve hitting power of
the hammer breaker, but also make oil temperature high, so
as to damage piston and valves.
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