OPERATION & MAINTENANCE MANUAL SWE18UF
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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 tipping and (or) breaker damage. (as FIG.
4.7.3)
9) Don’t swing upper-structure 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 element
Hydraulic breaker operation will pollute hydraulic system and accelerate aging. You should replace hydraulic
oil filter element 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)
Excavator with hydraulic hammer breaker
Excavator with normal bucket
The figures with mark ★ apply for excavators whose
hydraulic breaker operation time is 100%. For the hydraulic
breaker operation time ratio is less than 100%, the
replacement interval should be as following diagram
showing.
When the machine operates hydraulic breaker continuously
more than 500 hours, replace hydraulic oil filter element.
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