MAINTENANCE
HYDRAULIC SYSTEM - CHANGE OIL, REPLACE
SUCTION STRAINERS AND PULSATION DAMPER
Legend for illust. Z25002
(1)
Main hydraulic oil reservoir
(2)
Back-pressure valve
(3)
Swing gear location
(4)
Return oil collector manifold
(5)
Drain coupling of the return oil collector manifold
(6)
Branch pipe
(7)
Strainer of the oil cooler circuit
(8)
Intermediate pipe
(9)
Differential pressure switch
(10)
Pulsation damper
(11)
Distributor manifold
(12)
Oil flow to cooler
Drain the oil from manifold (4) by attaching the drain hose
(part of tool set) to coupling (5).
Remove pipe (8) with strainer (7). Insert new strainer and
install pipe (8) with new gaskets.
Remove pulsation damper (10) and install new pulsation
damper with new O-ring.
4.13 EVERY 2000 OPERATING HOURS OR YEARLY
401