FO-4 I&T (Remastered Ver.1.2 ) 05-24-2015
When early model 9N steering gear is
turned to either extreme, severe steering
conditions may cause sectors to jump out
of mesh and result in an uneven turning
radius. To synchronize sectors without
removing steering housing, disconnect both
drag links at steering arms an move left
arm rearward as far as possible, and right
arm in opposite direction to un-mesh
gears. Re-engage both sectors with
steering shaft pinion and check
synchronism by observing whether steering
arms are parallel and point slightly
rearward, when gear is in mid or straight
ahead position. Reconnect drag links and
adjust same if necessary.
6B. OVERHAUL. To completely overhaul the
steering gear it is necessary to first
remove the unit as per paragraph 6A. Renew
worn parts and install new oil seals.
Model 8N Prior to 216989
On tractors prior to serial 216989 the
sector teeth are straight cut and the left
sector (viewed from rear of tractor)
meshes with the rack teeth on the ball
nut. Refer to Fig. FO8. The right sector meshes with the left sector and rotates in
the opposite direction. On tractors after serial 216988 the arrangement is reversed
as shown in Fig. FO12A, the right sector being meshed with the ball nut, and
because the sector teeth are of the bevel type a different method of backlash
adjustment is employed.
Connect/Report Errors – jcchapster@gmail.com
Fig. FO6 Models 2N-9N steering gear–
unit with attached instrument panel.
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