Great Plains 3SF45 Operator Manual - Manual (Page 14)

4/8/99 2-2
170-062M
ASSEMBLY INSTRUCTIONS & SET UP (CON’T.)
ASSEMBLING THE DRILL (Con’t.)
10. To hook up lift hydraulics to the center drill, route hos-
es from out of the back of the tongue. Use the same
route as used on the wing drills and attach one hose
to the base end port of the master cylinder and the rod
end port of the slave cylinder. The jumper hose should
already be installed.
11. Hook tractor up to the tongue and plug hydraulic con-
nectors into the tractor. With tractor running at an idle
speed charge the drill hydraulic system. {Be sure your
tractor has plenty of hydraulic fluid. This system re
quires approximately 6 gallons.} When your drill frame
raises for the firs time, one lift cylinder will extend fully
before the other one begins to move. Once the firs
cylinder is fully extended continue to hold your tractor
valve in the same position for at least 60 seconds after
the second lift cylinder has fully extended. The reason
for the unevenness of raising for the first time is be
cause your drill is equipped with master and slave
rephasing cylinders. Raise and lower the frame sever-
al times to be sure there is no binding or problems
with your lift system. Refer to "
Tractor Draw Bar
Hookup " on page 2-3, and "Tractor Hydraulic
Hookup" on page 2-4.
12. Check to see that all nuts are tightened. See the " Nut
& Bolt Torquing Chart " on page 1-5 for torque spec-
ification .