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Section 124—Assembly
17
BALL CIRCUITS.
LEFT SECTOR
RIGHT SECTOR
RM-643
Fig. 8—Timing Sector Shaft and Ball Nut
a pull of 2 to 3 pounds is required to turn the steering wheel through
the straight ahead position (fig. 7).
Place the right sector shaft and thrust washer in the sector shaft
bearing housing, and position the metal gasket on the housing. The
right sector must be engaged with its center tooth meshed in the third
tooth space on the left sector gear, counting from the solid section of
the gear, located on the bottom, as shown in fig. 8. The tooth on
the right sector can be identified by a dot or mark on the end of the
tooth.
The tooth space on the left sector also can be identified by a dot or
mark. The bearing is eccentric in the sector shaft bearing housing and
should be installed with the notch located at the bottom. Rotate the
housing clockwise (as viewed from the right side of the tractor) to
reduce backlash.
The adjustment between the right and left sector should be such
that the force required to turn the steering wheel through the straight
ahead position is 3 to 6 pounds.
The steering gear assembly should be filled with S.A.E. 90, oil. This
oil may be pumped into the right side of the steering gear housing
through the pipe plug hole.
3730-473
§ 124. b.
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