SWE90UF-2PB Operation & Maintenance Manual
(1) Confirm and check as requirements before operation every day.
(2) Operate the excavator slowly. Because the hammer breaker is
heavier than the bucket, that is the reason of the descending
stability of the excavator. Thus, it should be supported by
mouldboard and the operation should be done in the front.
(3) Avoid using the hammer breaker for striking. Never use boom
or arm to break objects. If not, the excavator may be damaged.
(4) Don’t move objects with the hammer breaker, if failure to do
so, the excavator may be damaged.
(5) Don’t operate the hammer breaker when the hydraulic piston
rod is fully retracted or extended to avoid the damage of hydraulic
cylinder or the excavator.
(6) If there’s abnormal jump of hydraulic hoses of the hammer
breaker, stop the operation immediately. That’s caused by the
damaged accumulator, of which the pressure change of the
hammer breaker. More seriously, the hammer breaker and the
excavator may be damaged too.
(7) When retracting foreside work equipment, pay attention to not
collide the hammer rod with the boom.
(8) Don’t operate the hammer breaker in the water.
(9) Don’t lift any objects with the hammer breaker. If failure to
do so, the excavator may tip and (or) the hammer breaker may be
damaged.
Don’t operate the hammer breaker after rotating the
upper-structure to one side, because under this posture, the
excavator is very unstable.
7.4.4 Safe Operation of Hydraulic Hammer Breaker
a) Please stop operation when oil tube vibrates too
much. When high and low pressure oil tube of hammer
breaker vibrate excessively, that should be disassembled and
repaired, please contact with designated Sunward after-sale
service station.
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