
3P1006NT
Maintenance
Great Plains | 151-144U | 2019/03/14
31
6. Slightly loosen the JIC connection (1) at the
elbow fitting.
7.
Start the tractor. Slowly extend the lift-assist
circuit until oil seeps at the cracked fitting.
8. Set the circuit to neutral and shut off the tractor.
9. Tighten the JIC fitting to 24-27 Nm.
10. With the cylinder bled and tightened, raise the
drill and install the lock channel or stroke control
spacers.
Seed Flap Replacement
To replace a seed flap (1), use needle nose pliers or
similar tool to grasp the
T
at the of the flap. Pull up to
remove the flap from the metal bracket (2).
Push the new seed flap down through the metal
bracket until the flap snaps into place with the
T
resting on top of the bracket.
If a seed firmer is also installed, it may be necessary
to shorten the flap.
Gearbox Maintenance
The gearbox is lubricated and sealed at the factory.
Under normal conditions, it does not require
maintenance or lubrication.
If the gearbox has been opened for repair, repack all
gears and around the shaft bearings using at least
7 ounces of gear lube, part number 788067B.
Keep moisture and dirt out of the gearbox. Inspect
the rubber seals on the gearbox drive and shifter
shafts. Replace if needed.
Spread a small skim coat of anaerobic sealant
(Loctite
®
525 or equivalent) to gear case mating
surfaces before bolting them back together.
Gearbox Damage Risk
Use sealant sparingly. Excess sealant may
squeeze off the intended surface and lock
bearings or gears.
Lubrication
If any movable parts such as levers, pivots, and
clamps are not moving smoothly due to rust or
hindering material, do not attempt to force parts into
motion. Instead, remove the rust or unwanted
material and apply oil or grease on the relevant spot.
Otherwise, machine may become damaged through
impaired usage.
Machine Damage Risk
Do not use petroleum based products on
feeder cup or small grass cup components.
Apply a small amount of grease to the following
areas at the hourly intervals indicated. If you operate
the machine in extremely wet and/or muddy
conditions, lubricate grease fittings more frequently.
Grease Fittings
Lubricate with grease at the hourly interval indicated
in the arrow.
Coulter Grease Bank
1
38205
2
1
31047
!
!
28382
8
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