9-6 STEERING GEAR A N D POW ER CYLINDER
LO W ER CIRCUIT
Fig. 1 1 -F illin g Ball C ircu it in Nut
the pitman shaft (fig. 10). Break the tack-weld and
withdraw the retainer from the shaft. Remove the ad
juster screw and lockwasher.
2. Install a new thrust washer and screw, lubricating the
end of the adjuster with regular steering gear lubricant.
3. Screw the retainer in tight and then back off 30 degrees
to obtain the correct adjustment. Tack-weld the re
tainer at the points shown in Figure 10.
Ball N u t Se rv icin g
As a rule, disassembly of the ball bearing nut will not be
necessary, if it is perfectly free with no indication of binding
or tightness when rotated on the worm. However, if there is
any indication of binding or tightness, the unit should be
disassembled, cleaned and inspected.
1.
Remove the screws and clamp retaining the ball guides
in the nut. Draw the guides out of the nut.
2. Turn the nut upside down and rotate the wormshaft
back and forth until all balls have dropped out of the
nut into a clean pan. W ith the balls removed, the nut
can be pulled endwise off the worm.
NOTE: On TE 60 Models w ith 9000 lb. axle, the
upper or lower bearing cone must be removed before
the nut can be removed from the worm.
3.
Place the wormshaft flat on the bench and slip the nut
over the worm with the ball guide holes up and the
shallow end of the rack teeth to the left from the steer
ing wheel position. Align the grooves in the worm and
nut by sighting through the ball guide holes.
4. Count 53 balls (all except TE 60 Models with 9000 lb.
axle), 45 balls (TE 60 Models with 9000 lb. axle) into
a suitable container. This is the proper number of balls
for one circuit. Drop the counted balls from the con
tainer into one of the guide holes while turning the
worm gradually away from that hole. Continue until
that ball circuit is full from the bottom of one guide hole
to the bottom of the other or until stopped by reaching
the end of the worm.
NOTE: In cases where the balls are stopped by the
end of the worm, hold down those bails already
dropped into the nut w ith the blunt end of a clean
rod or punch (fig.
1 1
) and turn the worm in the re
verse direction a few turns. The filling of the circuit
can then be continued. It may be necessary to work
the worm back and forth, holding the balls down
firs t in one hole then the other, to close up the
spaces between the balls and fill the circuit com
pletely and solidly.
5.
Lay one-half of the ball guide, groove up, on the bench
and place the remaining balls from the count container
in it (fig. 12). The number of the balls remaining should
just fill the guide.
6
. Close this half of guide with the other half. Hold the
two halves together and plug each open end with heavy
lubricant so the balls will not drop out while installing
the guide.
7.
Push the guide into the guide holes of the nut (fig. 13).
This completes one circuit of balls. If the guide does not
push all the way down easily, tap it lightly into place
Fig. 1 2—F illin g Ball Guides
Fig. 13-R em oving and Replacing Ball Guide
CHEVROLET OVERHAUL M A N U A L SUPPLEMENT
Содержание 40 60 Series
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