Ford 4000 Series Shop Manual page 121

Paragraphs 346-347
LEVER IN
POSITIONCO
trol valve bushing . Measure control
cake position with an accurate depth
gage or with special adjustment gage
(Nuday tool No. SW-508A). NOTE: The
Nuday SW-508A adjustment tool has a
0.200 gage on one end and a 0.030 gage
on the other and can be used to adjust
previous and current units.
If necessary to adjust , loosen lock nut
on control valve turnbuckle and turn
the turnbuckle in or out as required
until correct control valve spool posi-
tion is established , then tighten lock
nut and recheck adjustment . See Fig.
384.
With draft control linkage correctly
.loin sted. adjust the position control
linkage as outlined in the following
paragraph 346.
346. ADJUST POSITION CON-
'T'ROL LINKAGE . With draft control
linkage adjusted as outlined in para-
uraph 345, refer to Fig. 385 and pro-
Fig. 384-View showing spe-
cial gage (Nuday tool No.
SW-50B) being used to ad-
just draft control linkage.
Use gage No . SW-508A when
adjusting current units.
Refer to text.
Fig. 385 -Adjusting position
control linkage . Refer to text
for procedure and specifica•
tions. Also, refer to exploded
view of linkage In Fig. 388.
Geed as follows: '
Move the selector lever to position
control and the lift arms to fully low-
ered position. Move the quadrant con-
trol lever to bottom of quadrant for
previous units (Fig. 385), Y2-inch from
bottom of quadrant for current• units
(Fig. 386) or bottom notch in quadrant
for model 4200 (Fig. 387). The front end
of the control valve spool should then
be 0.200 (previous units) or 0.030 (cur-
rent units) below flush with the front
end of control valve bushing. The con-
trol valve position should be measured
with an accurate depth gage or special
adjusting gage as outlined in para-
graph 345.
If necessary to adjust position control
linkage, refer to Fig. 388, hold plate
(65) from turning with a wrench while
loosening out (64); failure to hold plate
from turning may cause pin (66) to be
sheared or bent. With nut loosened,
FORD
Fig. 386-Position control lever as shown when
adjusting position control linkage on current
units. Refer to text for procedure and specifics.
lions.
Fig. 381-Position control lever at bottom notch in
quadrant when adjusting position control
linkage on model 4200. Refer to text for proce-
dure and specifications.
turn position control rod (57) in or out
ash necessary to bring control valve
spool to proper position. When properly
adjusted, tighten nut (64) while
holding plate (65) and rod (57) from
turning, then recheck adjustment and
readjust if necessary.
LIFT COVER AND CYLINDER
ASSEMBLY
347. R&R LIFT COVER AND
CYLINDER ASSEMBLY. On model
4$00 rowcrop, remove the operator's
seat, platform and control. console as-
sembly; on other models , remove the
operator's seat . Thoroughly clean the
lift cover and adjacent parts, then on
all models, proceed as follows:
Move the selector lever to draft con-
trol and the control lever to bottom of
quadrant to fully lower the 3-point
hitch lift arms . Remove the pins that
connect main draft control spring yoke
to top link rocker and the lift shaft
arms to lift links. If so equipped, re-
move any remote control valves and
related remote control hose. Unbolt the
lift cover assembly from rear axle
center housing and remove from
tractor. If lift cover or cylinder are to be
serviced, thread two long bolts into the
operator's seat mounting holes in top of
lift cover and clamp the bolts in a
130