Great Plains TCN5313 Predelivery Manual - Manual (Page 16)

12 TCN5107-5313 Great Plains Manufacturing, Inc.
566-170Q 03/17/2014
Refer to Figure 11
Hose Handles
50. To distinguish hoses on the same hydraulic circuit,
refer to hose handles. The hose under an extended-
cylinder symbol feeds a cylinder base end. The hose
under a retracted-cylinder symbol feeds a cylinder rod
end.
51. Once all hoses are tightened, hook hoses to tractor
Refer to Figure 12
Purging Hydraulic System
52. Charge the lift system first. Extend the lift cylinders
(black handles) until the center section is fully raise.
Remove the cylinder transport locks
. Raise and
lower the gang system several times to purge air from
system. Watch for leaks and retighten fittings if neces-
sary.
53. You may now charge the fold system. Before charging
the fold cylinders , make sure the rod end of the cyl-
inders are un bolted and block is under cylinder as
shown, so that when the rod is extended, it will clear
the wing fold brackets. Extend the fold cylinders
(green ends) completely and then close them. Extend
and retract the cylinders several times to purge air
from the system. Now the cylinders may be extended
far enough to be connected to the wing fold brackets.
Remove wood block and install 1 1/4 x 9 special thread
hex bolt
, and 1 1/4 top lock nut. Tighten bolt snug
but be sure fold links will still pivot.
54. The gang lift system (red handles), will need
purged. The wing gangs will not start to rise until the
center cylinders are fully extended and the master cyl-
inders begin to bypass oil through the rephasing ports,
to the wing cylinders. Continue to pump oil to the gang
system until the wing gang cylinders are also fully
extended. At this point, reverse the flow and raise the
gangs, retracting all cylinders. Repeat this procedure
several times until all the air is purged out of the sys-
tem.
Figure 11
Hose Handles
41552
Figure 12
Hydraulic Purging
42018
3
5
2
1
4
1
2
3
3
4
5