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4-20 LUBRICATION MAINTENANCE
4-20.1
Table 4-3 specifies the number and the
period of lubrication points on the 7430 Verti-
cal Harrow. Proper maintenance of your ma-
chine will, under normal operating conditions,
help to keep it operating at or near its peak
performance for an extended period of time.
Proper maintenance is also a condition of
keeping your warranty in good status (See
Figure 4-18).
4-20.2
When lubricating the Vertical Harrow,
SAE multi-purpose EP grease, or EP grease
with 3-5% molybdenum sulfide is recom-
mended.
Wipe soil from fittings before
greasing. Replace any lost or broken fittings
immediately.
4-21 STORAGE
4-21.1
The service life of the Vertical Harrow
will be extended by proper off-season stor-
age practices. Prior to storing the unit, com-
plete the following procedures:
a. Completely clean the unit.
b. Inspect the machine for worn or defective
parts. Replace as needed.
c. Repaint all areas where the original paint is
worn off.
d.
Grease all exposed metal surfaces of
shanks, points and discs.
4-20
4-20.3
Disc gang and chopper reel bearings
are equipped with triple-lip seals that will let
grease pass and not harm the seal. Regular
lubrication will maintain a full grease cavity
and help purge any contaminants. Grease
the bearings before long periods of storage
to prevent moisture buildup within the bear-
ing cavity.
4-20.4
Wheel seals and walking tandem seals,
when properly installed, will allow grease to
pass without harm to seals. Regular lubrica-
tion will extend service life, particularly in se-
vere operating conditions.
4-20.5
The Vertical Harrow is equipped with
maintenance-free bearings in the lifts, lev-
eler, wing hinges and gauge wheel casters.
These areas require no lubrication.
e. Apply a light coating of oil or grease to ex-
posed cylinder rods to prevent them from
rusting.
f. Lubricate each point of the machine as
stated in Section 4-8.
4-21.2
Store the unit in a shed or under a tar-
paulin to protect it from the weather. The
ground tools and tires should rest on boards,
or some other object, to keep them out of the
soil.
4-21.3
If the unit must be stored outside, un-
fold the Vertical Harrow to prevent moisture
buildup in the disc gang and wheel bearings.
4-21.4
If the unit is stored in the folded posi-
tion, make sure the transport lock pins are
installed to prevent wing frames settling.
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