4-4.2
The hydraulic system is not filled with oil
and should be purged of air before transport-
ing and field operations. Carefully hitch the
Vertical Harrow to the tractor and connect
the hydraulic lift hoses. Check to make sure
the tractor hydraulic reservoir is full of the
manufacturer’s
recommended
oil.
Slowly
raise the machine, and continue to hold the
hydraulic lever until all lift cylinders are fully
extended. With all cylinders fully extended
remove the 1-3/8 X 10 transport lockouts
(See Figure 4-3).
Store transport lockouts as
shown in
Figure
4-4.
Lower and raise the
unit to verify that all cylinders are working si-
multaneously throughout the stroke. If the
cylinders are not working evenly or together,
fully extend the lift cylinders and continue to
hold the lever to purge any remaining air. Do
not loosen any hoses or fittings. Recheck
tractor reservoir to make sure it is within op-
erating limits.
4-4.3
Always fully extend the cylinders and
hold the lever to ensure the cylinders are
rephased before starting any field operation.
This will keep all cylinders in time and frame
sections level when operating.
4-4
1-3/8 x 10 TRANSPORT
LOCKOUT
L PIN
1/8 HAIR PIN
6230translock2
Figure 4-3 Installed Transport Locks
6230translock1
1-3/8 x 10 TRANSPORT
LOCKOUT
L PIN
Figure 4-4 Stored Transport Locks
Summary of Contents for 7430 Series
Page 3: ...MODEL 7430 VERTICAL HARROW OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i...
Page 4: ...NOTES ii...
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