Great Plains CP1000 Predelivery Manual - Manual (Page 9)

6 CP1000 Three-Meter Drill and Hitch 148-358Q 10/16/08
Great Plains Mfg., Inc.
Bleeding Marker Hydraulics
!
CAUTION!
You may be injured if hit by a folding or unfolding marker.
Markers may fall quickly and unexpectedly if the hydraulics fail.
Never allow anyone near the drill when folding or unfolding the
markers.
1. Check that tractor hydraulic reservoir is full.
2. With both markers lowered into field position, loosen
hydraulic-hose fittings at rod and base ends of marker
cylinders. Loosen fittings on back side of sequence
valve.
IMPORTANT: Never bleed an O-ring fitting. Instead,
bleed a nearby pipe or JIC fitting.
3. With tractor idling, activate tractor hydraulic valve until
oil seeps out around a loosened fitting. Tighten that fit-
ting.
IMPORTANT: JIC fittings do not require high torque.
JIC and O-ring fittings do not require sealant. Always
use liquid pipe sealant when adding or replacing pipe-
thread fittings. To avoid cracking hydraulic fittings from
over tightening, do not use plastic sealant tape.
4. Reactivate tractor hydraulic valve until oil seeps out
around another loosened fitting. Tighten that fitting.
Repeat process until all loosened fittings have been
bled and tightened.
Level Drill with Hitch
To check if the drill is level with the hitch, place a straight
edge on top of the seed-box lid and extend the straight
edge over the hitch frame. Take two measurements from
the straight edge to the hitch frame. See Figure 2-8. If the
measurements are not equal, level the drill.
17225
Figure 2-8
Straight-Edge Measurement
To level drill, use threaded adjustment at front of link. Refer
to Figure 2-9. Raise implement, flip up lock plate (1) and
unpin link from hitch. Loosen jam nut (2) and turn eye bolt
to shorten or lengthen the link as necessary. Repin link
and re-check if drill is level. When drill is level, tighten jam
nut.
17212
1
2
Figure 2-9
Levelling Adjustment