Nortrac XT20 Owner's Manual page 35

Suspension Mechanism Application
During tilling operations, the plow is adjusted
vertically and horizontally to ensure that the tilling depth is
the same.
•
Adjusting the horizontal in a longitudinal direction:
Adjust the upper pull bar's (A) length to keep the plow
frame horizontal in a longitudinal direction for an
equal tilling depth of each plow. When the front blade
is deep and rear blade is shallow or the plow heel is
away from the bottom of trench, the upper pull rod
should be extended. When the front blade is shallow
and the rear blade is deep or the plow heel compacts
the bottom of the trench, the upper pull rod should be
shortened.
•
Horizontal adjustment: Adjust the length of the right
and left lifting rod to keep the plow frame level. When
the right lifter rod (B) is extended, the tilling depth of
the first plow will be deeper. When the rod (B) is
shortened, the tilling depth of the first plow will be
shallower. Usually, the left lifting bar (C) is not
adjusted, except when the adjustment amount of the
right lifting bar is not enough. The left rod is adjusted
for a same tilling depth of each plow.
Important notes
1. When plowing, never adjust the deflective traction of the farm machinery by fixing the limit rod. This
will help you avoid damaging the suspension mechanism.
2. When plowing, in order to avoid the suspension mechanism damage, the tractor should never be turned
without lifting the farm machinery.
Note: The limit rod is use to prevent the lower pull rod from hitting the rear wheel of the tractor due to
excessive swinging when the tractor lifts the farm machinery and turns at the end of field. When the farm
machinery is in the tilling position, the limit rod is in a loose state. A certain oscillating quantity between the
tractor and farm machinery is allowed
Operation Description
29
Figure 2-27 Suspension Mechanism