Wacker Neuson WL 50 - Changing the Return Filter Element

SERVICING AND INSPECTION
194
Changing the return lter element
The hydraulic system is equipped with a return lter Item 2
(Fig. 93). It is connected to an indicator light. An installed
bypass valve secures the return valve against positive pres-
sure.
eNVIRONmeNTAl NOTe
Let the pressure from the hydraulic uid reservoir
escape by opening the hydraulic uid ller neck
cap Item 1 (Fig. 90) before you unscrew the cover
of the lter housing Item a (Fig. 94). Otherwise,
hydraulic uid will be forced out of the lter housing
and could get into the environment.
Dispose of the old lter element and any leaking
hydraulic uid in an ecologically sound manner.
Replace the lter element of the return lter Item b.
(Fig. 94) during inspections or if the indicator light
for the return lter Item 3 (Fig. 13, page 48) on the
instrument panel is illuminated between inspection
intervals.
After installing a new lter element, the indicator
light on the instrument panel should no longer be
illuminated.
Replace the lter element in a timely manner, as
the lter‘s effect is overridden when the bypass
valve is open.