Great Plains CTA4000 Operator Manual - Manual (Page 15)

13
Section 1 Preparation and Setup
2/1/06 CTA4000 Air Drill Implement 160-269M
Great Plains Mfg., Inc.
Bleeding Fold Hydraulics
!
DANGER!
Overhead crushing hazard. To prevent serious injury or death:
•
Fold implement only if fold hydraulics are bled free of air and
fully charged with hydraulic oil.
•
Keep away and keep others away when folding or unfolding
implement.
!
WARNING!
Before folding, you must hitch the implement to the tractor and
cart. Failure to do so could result in severe equipment damage
and bodily injury or death.
1. Check hydraulic-fluid level in tractor reservoir and fill
to proper level. You will need about 5 gallons of oil to
fill the fold cylinders.
2. Turn field/folding selector valve to fold position.
3. Loosen rod-end fitting shown in Figure 1-9.
4. Slowly engage hydraulic lever as if folding implement
until oil appears at loosened hose fitting. Continue
engaging lever until all air has been expelled from fit-
ting, then tighten fitting.
5. Loosen base-end fitting shown in Figure 1-9.
6. Slowly engage hydraulic lever as if unfolding imple-
ment until oil appears at loosened hose fitting. Contin-
ue engaging lever until all air has been expelled from
fitting, then tighten fitting.
7. Cycle fold cylinders in and out 10 times.
8. Re-pin cylinder rods to cylinder mounts.
9. Recheck tractor hydraulic reservoir and fill to proper
level.
10. Slowly fold and unfold implement. Check for hydraulic
leaks. Be aware of any pinch points that might cause
damage or accelerate wear on hydraulic hoses.
Eyebolt Adjustment
Before using the implement, check that the opener frames
are level across the drill. When fully raised, the top of the
opener mounts (1) should clear the bottom of the top
frame tube (2) by at least 1/2 inch.
Adjust opener frames so all openers have the same clear-
ance. To raise or lower an opener frame, loosen jam nut
(3) on opener-lift cylinder and turn adjustment nut (4).
When openers are at correct height, retighten jam nut.
Repeat for each opener frame if necessary.
Figure 1-10
Eyebolt Adjustment for Opener Height
1
2
3
4
17159
Figure 1-9
Bleeding Fold Cylinders
17199