Many types of dust goes into hydraulic circuit from hydraulic cylinder, hydraulic tank breather. In addition, dust is generated by wear of inner assemble parts of hydraulic component.
Generally, over 70% of problem in hydraulic component is caused by dust or contamination. With the advancement in machine technology, hydraulic pressure became higher. Therefore the clearance and tolerance of hydraulic component became tighter and as a result, contamination control of hydraulic circuit is extremely important.
Hydraulic filter for breaker:
When using the hydraulic breaker, more smaller dust can enter the hydraulic circuit. In order to prevent failures hydraulic circuit and PPC circuit are equipped with an additional return filter, Replacement intervals for these filters and hydraulic oil differ by model. Refer to the operation & maintenance manual for more information.