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
ps
i (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
a
nd
check
hydraulic oil level
at
reservoir.
If
oil level
Is adequate, measure charge
pump
relief pressu
re
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
ps
i (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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