Identifying Hose Connections-542 Loader on 6403 and 6603 Tractors

causym CAUTION: Help prevent personal injury caused by unexpected loader movement. Anticipated loader movement responds to control lever only if hoses are connected to tractor selective control valves as shown below.

NOTE: If equipped, hose connections are identified by color coded dust covers. Colored plugs are installed on the tractor selective control valve outlets at loader predelivery. Corresponding colored caps are installed on loader hose ends.

Use the following chart to identify hoses and replace missing colored dust covers.

Key Dust Cap/Plug Color Symbol Reference Hydraulic Function
A Yellow II (extend) Bucket Cylinder-Head End
B Black II (retract) Bucket Cylinder-Rod End
C Blue I (extend) Lift Cylinder-Head End
D Red I (retract) Lift Cylinder-Rod End
E Orange III (extend) Attachment-Cylinder Head End
F Green III (retract) Attachment Cylinder-Rod End

 

NOTE: Attachment cylinder hydraulic lines/hoses not shown.

Hydraulic line use is also described on face of clamp (G).

W05052
W05269


A-Bucket Cylinder Head End
B-Bucket Cylinder Rod End
C-Lift Cylinder Head End
D-Lift Cylinder Rod End
E-Attachment Cylinder Head End
F-Attachment Cylinder Rod End
G-Clamp

OUO6077,00018AC -19-14JAN07-1/1