UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
FOR HYDRAULIC EXCAVATOR 330LCR
ITEM TO BE INSPECTED
EQUIPMENT IS NOT
PROCEDURE: DO THE PMCS AND HAVE ITEM
REPAIRED, FILLED, OR ADJUSTED AS NEEDED
WARNING: High-pressure release of oil from
pressurized system can cause serious burns or
penetrating injury. The hydraulic tank is
pressurized. Do not remove vent plug (A).
Release pressure by loosening vent plug.
(10) Loosen vent plug (A) to release hydraulic
(11) Hold down filter cover against light spring load
when removing the last two cap screws.
(12) Remove spring (C), valve (E), and element (D).
(13) Remove filter case and discard element and O-