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MAINTENANCE/SERVICE
Traction
Drive:
Hydraulics
TRANSMISSION OIL
PRESSURE
Warning light and buzzer in cab will be activated
when
Ignition switch is turned
ON
if
transmission
oil pressure
is below
60
psi
(415
kPa).
Do not
drive the
windrower
until light
and buzzer go off.
If
light and buzzer stay
on
after engine
starts,
or
if
they activate during
operation, shut
engine off
and
check hydraulic
oil
level
at
reservoir.
If
oil
level
Is
adequate, measure
charge
pump
relief
pressure
as described
below.
CHARGE PUMP RELIEF PRESSURE
The
charge pump provides
hydraulic power to the
traction
drive.
To check charge pump
relief
pressure:
1.
Remove wiring
from
oil pressure
switch
on top
of
charge
pump
and
remove
switch (A) from
cross
fitting.
2.
Attach a O - 600
psi
(4000
kPa)
pressure
gauge
to
a hose
that is long
enough to allow pressure
gauge
to
be
read from
the operator's seat.
Attach
hose to
the
cross
fitting
(A)
(1 /4
NPT).
3.
Start engine and move
throttle lever fully
forward.
Pressure should be 100
to 150
psi (700
to
1000
kPa).
If
pressure
is
not within
this
range,
proceed with adjustment steps below.
4.
Shut
off
engine and
remove key from ignition.
5.
Remove 1" hex cap nut (B) from
relief
valve
at
right side
of engine compartment, beside
hydraulic
filter.
6.
Turn
adjustment screw in 1
/
8 turn
increments,
clockwise to increase relief pressure, counter-
clockwise to
decrease.
7.
Repeat checking and adjustment procedure
until relief pressure
is correct.
ATTACH HOSE FROM PRESSURE GAUGE
CHARGE PUMP RELIEF VALVE
100
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