o
HYDRAULIC SYSTEM (Fig.
64)
The hydraulic and
hydrostatic
systems
use
the
same hydraulic oil reservoir.
The system has an engine driven vane
pump
that
supplies
hydraulic
oil
to
the
control
valve and
the
lift
and
tilt
cylinders (Fig.
64).
Oil also goes
from
the
control
valve
to
the
hydrostatic
transmission
pumps
to
provide
charge pressure and cooling.
A
10
micron
filter
is installed on
the
right
side
of
the
engine
compartment
(Fig.
65,
Item
1).
This
filter
is used
to
clean
the
oil
for
the
hydrostatic
transmission.
A
40
micron
filter
is located in
the
port
block.
It
must
be changed every
500
hours
by
the dealers serviceman.
The
location
of
the
oil cooler is ahead
of
the
engine. The oil cooler is used
for
cooling
the
hydraulic oil before
it
returns
to
the vane pump.
HYDRAULIC/HYDROSTATIC OIL RESERVOIR
Use only recommended oil in
the
hydraulic
system
(See
"Specifications",
page
62).
Checking and
Adding
Oil
To check
the
oil level in
the
hydraulic reservoir:
1.
Put
the
Bobcat loader on a level surface.
Lower
the
lift
arms and
tilt
the
Bob-
Tach
fully
backwards.
2.
Open
the
bottom
check valve on the side
of
the
reservoir (Fig.
66,
Item 1). The
oil level is good
if
the
oil level is
between
the
top
and
the
bottom
check valve.
If
no
oil
flows,
close
the
valve and proceed
with
step 3.
3.
Open the
top
check valve (Fig.
66,
Item 2). Remove
the
fill
cap
from
the
reservoir (Fig.
66,
Item 3).
Add
oil
to
the
reservoir
until
it
flows
at
the
top
check
valve. Close
the
valve and replace
the
fill cap.
-31-
Fig.
65
10
Micron
Rlter
Fig.
66
Hydraulic Level Check
743
Loader
Operator's
Manual
To Next Page
Loading...