⚫ The figures with mark ★ apply for excavators whose
hydraulic breaker operation time is more than 100%. For the
hydraulic breaker operation time ratio is less than 100%,
the replacement interval should be as the diagram shows.
⚫ When the machine operates hydraulic breaker continuously
more than 100 hours, replace hydraulic oil filter core.
2) Avoid hammering work with hydraulic breaker. Never use boom or arm to break objects,
otherwise it will damage machine.
3) Don’t move objects with hydraulic breaker,
otherwise it will damage machine.
4) Don’t operate hydraulic breaker when hydraulic
cylinder piston retracts or extends fully, avoid
damaging hydraulic cylinder or machine.
5) If hydraulic breaker hose jumps abnormally, stop
operation immediately. The pressure change of
breaker accumulator or damaged accumulator will
cause unusual hose jump, and damage hydraulic breaker or machine.
6) When retract foreside attachment, don’t allow the chisel of breaker to touch boom.
7) Don’t operate hydraulic breaker in water.
8) Don’t lift objects with hydraulic breaker, otherwise it will cause machine upset and (or)
breaker damage.
9) Don’t swing superstructure to the side of machine to operate hydraulic breaker, or the
machine will be instable and thus shorten the lifetime of undercarriage.
Replacement of hydraulic oil and filter core
Hydraulic breaker operation will pollute hydraulic system and accelerate aging. You should
replace hydraulic oil filter core and hydraulic oil more frequently to avoid damaging hydraulic
pump and other hydraulic parts. The recommended replacement interval is shown as follows.
Replacement interval (hours)
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