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: Prevent possible injury from
flying chips if compressed air is more than
210 kPa (2.1 bar) (30 psi). Reduce compressed
air to less than 210 kPa (2.1 bar) (30 psi)
when using for cleaning purposes. Clear area
of bystanders, guard against flying chips, and
wear personal protection equipment including
NOTE: Remove element and inspect for metal
particles and debris in bottom of filter case.
Excessive amounts of brass and steel particles
can indicate a hydraulic pump, motor, or
valve malfunction, or a malfunction in
progress. A rubber type of material can
indicate cylinder-packing problem.
(14) Clean filter case with diesel fuel and dry with
(15) Install filter case, valve (E), and spring (C) in
(16) Install cover (A) and tighten cap screws (B).
FILTER COVER SPECIFICATIONS
49 N·m (36 lb-ft)
Cap Screws, Cover
(17) Tighten vent plug.