Great Plains 1205NT Operator Manual - Manual (Page 42)

1205NT
150-131M 3/28/12
40
Single/Dual Markers without Sequence Valve
Refer to Figure 2.
1. Fold markers manually into transport position
when charging hydraulic system for the first
time.
2. Disconnect cylinder pin (1) from rod end of
cylinders and marker link arms (2). Swing
marker link arm up and out of the way.
3. Connect hoses to tractor remote hydraulic
outlets.
4. Loosen hose hydraulic fittings at rod end of
marker cylinders (3).
5. With tractor at idle speed, slowly work tractor
remote lever in the direction which would re-
tract the cylinder.
NOTE: Do not try to retract cylinder. The goal is to
push air from the lines leading to the cylinder. The
position of the sequence valve determines which
cylinder will react first.
6. When the air is expelled, oil will seep out
around a loosened fitting. Tighten the hose fit-
ting.
7. Move tractor remote lever to fully extend cyl-
inder and hold for a few seconds.
8. If you have dual markers, repeat steps 4
through 6.
9. When the system is bled, move the tractor re-
mote to fully extend marker cylinders.
10. Reconnect cylinders to marker link arms.
Figure 2
Bleeding Marker Hydraulics
14021