Great Plains 2515P Operator Manual - Manual (Page 20)

2015P and 2515P
173-208M 4/11/2005
18
Bleeding Lift Assist Hydraulics
!
WARNING
Crushing hazard. The hydraulics could fail, causing
the bean machine to fall and crush you. Never work
under the raised bean machine unless secured with
channel locks. Never bleed an O-ring fitting, which
could damage the seal and cause the implement to
drop rapidly.
The lift-assist hydraulics must be free of air. If the
lift assist raises with jerky, uneven motions, or if a
hydraulic component is replaced during the life of
the lift assist, follow these steps to bleed air from
the hydraulics.
1. Check that the tractor hydraulic reservoir is
full.
Refer to Figure 8
2. Loosen tee fitting on both sides of the tee. Tee
fitting is located under bean machine box. En-
gage tractor hydraulic lever for the lift assist
until oil appears at loosened fittings. Tighten
fittings.
Leveling Bean Machine
Refer to Figure 9
Adjust bean machine so opener tube runs 22
inches above ground when bean machine is low-
ered in field.
Refer to Figure 10
1. Loosen jam nut (1) near top clevis of each
gauge-wheel turnbuckle.
NOTE: Jam nut is left-hand threaded.
2. Bolt upper clevis in upper mount hole (2).
3. Set turnbuckle length. Turn turnbuckle to
shorten or lengthen as necessary. Initially set
length to 15 1/4 inches between pin centers to
achieve the 22-inch dimension mentioned
above. When adjusting turnbuckle, remem-
ber:
• Lengthening turnbuckle raises bean ma-
chine.
• Shortening turnbuckle lowers bean machine.
4. After adjusting both turnbuckles to same
length, tighten jam nuts.
Figure 8
Lift Assist Hydraulic Tee Fitting
18554
Loosen
Loosen
Figure 9
Initial Operating Height
18543
Figure 10
Gauge-Wheel Turnbuckle
17773