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18 CTA4000 & CTA4000HD Table of Contents Appendix
Great Plains Manufacturing, Inc.
160 - 037Q
Table of Contents Appendix
2019 - 10 - 17
Bleeding Fold Hydraulics
Overhead crushing hazard:
To prevent serious injury or death:
s
Fold implement only if fold hydraulics are bled free of air
and fully charged with hydraulic oil.
s
Keep away and keep others away when folding or unfolding
implement.
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. Filling a completely empty fold
cylinder set requires about 5 gallons of oil.
Refer to Figure 19
2. If not already done for lift bleeding, with implement
unfolded, disconnect rod ends of fold cylinders .
Place a support under the cylinder end so
extending rods will not contact anything.
Refer to Figure 20
3. Turn field/folding selector valve to fold position.
Refer to Figure 21
4. Loosen rod - end fitting.
5. 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
fitting, then tighten fitting.
Refer to Figure 21
6. Loosen fittings of fold cylinder as shown.
7. Slowly engage hydraulic lever, as if unfolding
implement, until oil appears at loosened fittings.
Continue engaging lever until all air has been
expelled from fitting, then tighten fitting.
8. Cycle fold cylinders in and out 10 times.
2
1
Figure 19
Fold Cylinder Bleeding
16432
Figure 20
Handles for Fold Bleed
26375
1
2
Figure 21
Fold Bleed Points
17199