Great-plains YP1220 Operator Manual User Manual download pdf (Page 18)

14 YP1220 Great Plains Manufacturing, Inc.

401-506M 03/14/2012

Older Style Hoses with Color Ties

Refer to Figure 4

Great Plains hydraulic hoses are color coded. Hoses that

go to the same remote valve are marked with the same

color tie.

To distinguish hoses on the same hydraulic circuit, refer

to plastic hose label. Hose under extended-cylinder sym-

bol feeds cylinder base ends. Hose under retracted-cylin-

der symbol feeds cylinder rod ends.

Protecting Hydraulic Motor Seals

Low Pressure (Case) Drain Connection

Motor Seal Damage Risk:

Case Drain Hose must be attached prior to inlet and return

hoses being connected. Also, it must be unhooked last to pre-

vent damage to the fan motor.

1. Attach case drain hose to low pressure drain con-

nection.

Note: Case drain hose must be hooked up ﬁrst. Also, it

must be unhooked last to prevent damage to hy-

draulic motor seals.

2. Connect low pressure return hose to low pressure

return connector.

Hydraulic Motor Performance Risk:

DO NOT hook case drain line to a “power-beyond port”.

3. If the tractor has a limited number of remotes capa-

ble of continuous ﬂow, use one for the fan. (See

“Speciﬁcations and Capacities” on page 74 for

tractor requirements.)

Color Hydraulic Function

White Fold/Marker

Blue Lift/Tongue

Orange Fan

Figure 4

Plastic Hose Label

817-348C

17641

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Great-plains YP1220 Operator Manual User Manual Page 18