The machines use four filters for hydraulic fluid:
one filter placed on the inside of the hydraulic
tank has the combined function for oil at the
suction as well as return, and the second one
is wire mesh filter. The others are PLFA series
filters used in the pressure line of hydraulic
system. One is placed on the back side of the
hydraulic tank, and the other is placed on the
end of the third boom.
Suction filter
1 Stabilise the machine to facilitate
accessibility to the filter in question: clean
the filter housing and surrounding areas to
prevent dirt from entering the circuit.
Unscrew the cap.
2 Replacing the filter cartridge does not
involve draining the tank: the filter
cartridge is provided with a special plant
closure system. When it is being removed,
the oil present inside the filter normally
flows out
3 Remove the filter cartridge and dispose of
according to the regulatory standards in
force. Insert a new filter cartridge of the
same type.
4 Refit the filter cover. Start up the system
and check for leaks.
5 Check for a drop in the oil level through
the window present on the tank: if
required, top up with the quantity
necessary to reach the correct level.
Wire mesh filter
1 Remove the cover 1 from the hydraulic
tank.
2 Clean the area around the cover of the
hydraulic oil reservoir.
3 Use a wrench to loose and remove the
bolts from the hydraulic oil reservoir cover,
move the cover away from the reservoir,
then turn the filter element 2 from the
adaptor.
4 Take a new filter element to screw it onto
the filter adaptor.
5 Install the covers back, and screw down
bolts.
PLFA filter (outlet of pump)
1 Clean the area around the oil filter, and
then remove the cap components.
2 Pull out the filter element from the filter
assembly chamber.
3 Install the new filter element to the filter
assembly chamber.
4 Refit the cap components and tighten it.
Clean up any oil that may have spilled
during the replacement procedure.
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