Great Plains PFH-20 Assembly Instructions - Manual (Page 13)

4/9/2004
11 Assembly
Refer to Figure 2
8. Route the hoses from each marker through
the mount and out the opening in the inside
end of the mount.
9. Route the hoses along the coulter frame tube
and tie them to the tube with the releasable
cable ties (6).
10. Connect the hoses to the sequence valve (7)
with four JIC elbows (5). Note the port mark-
ings and refer to the drawing for proper con-
nections.
11. Connect the two 156" long hoses (8) to the
two top ports of the sequence valve with two
elbows (5) and route them to the tongue and
through the hose loop. Use releasable cable
ties to secure hose to frame.
NOTE: Check the hydraulic fluid in the tractor res-
ervoir and fill it to the proper level. Add fluid to the
system as needed. A low reservoir may draw air
back into the system causing jerky or uneven
movement. The fluid capacity of the markers is
.75 gallons.
12. With the first section in the lowered position,
connect the hoses to the tractor and cycle
each cylinder 3 or 4 times. Both arms should
move to the vertical position on the first move
and then they should lower and raise alter-
nately as the hydraulic lever is operated.
!
DANGER
Keep all persons clear of the marker when operating.
Air in the hydraulic system can cause the marker arm
to drop quickly. Make sure the system is properly
charged.
Figure 2
Hydraulic Assembly
20187