ASV PT-80, Operation And Maintenance Manual

Page: 49 / 72

MAINTENANCE
Hydraulic System
48
Hydraulic Fluid/Filter
Change
Hydrostatic components require
extremely clean oil in order to
have a long service life. Use
extreme caution when changing
the hydraulic oil. Introducing dirt
or debris could be detrimental to
the hydraulic system. ASV rec-
ommends service intervals of
500 hours for hydraulic fluid and
250 hours for hydraulic fluid fil-
ters.
To change the hydraulic fluid:
1. Locate the hydraulic system
drain access situated in the
belly pan between the axles
on the right side of the
machine. (fig. 1)
2. Remove the drain plug using
the correct size allen type
wrench or allen socket to
avoid damaging the drain
plug. (fig. 1, 2)
3. Drain the hydraulic fluid into
a suitable catch container.
4. Locate the two hydraulic fil-
ters underneath the cab on
the left side of the machine.
(fig. 3)
5. Thoroughly clean around the
filters to prevent dirt or
debris from entering the sys-
tem and remove the filters
by hand or with a strap as
required.
6. Check to make sure the filter
gaskets are still present on
the old filters. If not, check
the filter heads to make sure
they are free from old
gasket material prior to
installing the new filters.
7. Prepare the new filters by
rubbing a small amount of
fresh hydraulic oil onto the
filter gasket surface and
then threading them onto
their respective filter heads.
Tighten filters by hand as
instructed by the label locat
ed on the filter or filter box.
1
2
3