2019-03-19
411-198M
YP4025A-48TR20
Preparation and Setup
18
Color Coded Hose Handles
If a PTO pump is installed, hitch hoses are not present
for the fan and hydraulic drive functions.
To distinguish hoses on the same hydraulic circuit, refer
to the symbol molded into the handle grip. Hoses with an
extended-cylinder symbol feed cylinder base ends.
Hoses with a retracted-cylinder symbol feed cylinder rod
ends.
For hydraulic fan and drive motors, connect the hose
under the retracted cylinder symbol to the pressure side
of the motor. Connect the hose under the extended
cylinder symbol to the return side of the motor.
The fan motor further requires hookup of a third line,
which returns hydraulic fluid from the fan motor case.
Protecting Fan Hydraulic Motor Seals
Low Pressure (Case) Drain Connection
1. Attach case drain hose to low pressure drain
connection.
Case drain hose has the smaller
1
/
4
inch I.D. hose
and small, flat-face, connector.
2. Connect low pressure motor return hose to low
pressure return connector. It is distinguished by a
large (1.06 inch/2.7 cm diameter) quick coupler.
3. Connect hydraulic hoses to tractor remotes.
If optional weight transfer is installed, the fan return
and case drain lines are also used by the weight
transfer system.
Color
Hydraulic Function
Gray
Wing Fold / Marker Fold / Auxiliary
Blue
Lift / (and Hitch if hydraulic tongue)
Black
Fan
Yellow
Hydraulic Drive (standard)
Weight Transfer (option)
Hydraulic Fertilizer Pump (option)
Figure 4
Color Coded Hose Handles
31733
Machine Damage Risk:
Case Drain Hose must be attached first,
prior to inlet and return hoses being connected.
Case Drain Hose must be detached last,
to prevent damage to the fan motor.
Machine Damage Risk:
DO NOT connect the case drain line to a power-beyond-port.
