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ADJUSTMENTS - PAGE 8-10
Adjustment No. 8, Page 8-12, should read as
follows: Check length of valve rod (applicator
valve) (25) Figure 1. If the setting is correct, the
center line of the pin (24) will be exactly in line with
the center line of the piston rod pivot bolt (23) as
indicated by large arrow.
FIGURE 1
Valve rod (25) can be adjusted by loosening the
lock nut and turning the valve rod in or out of the
threaded trunnion (26). After making the proper
adjustment secure the locknut.
NOTE: The valve rod assembly is properly adjusted
at the factory and should never have to be adjusted
unless the adjustment has been altered by someone
unfamiliar with proper adjustment procedure.
If it is found necessary to change the "Valve Rod
Adjustment" recheck the "Threaded Sleeve Rod
Adjustment", adjust the threaded sleeve (33) Figure
2, until the vacuum cylinder piston is 1/2" from its
extreme forward position.
Check this adjustment by pushing on valve lever
(28) and then releasing. Above adjustment should
be made with the compensator lever in starting
position; pin (F) forward as shown in solid lines
Figure (11) in the 480-490 Procedure Manual.
SECTION 8
VACUMOTIVE DRIVE
ADJUSTMENT NO. 10 - PAGE 8-12
Add the following note:
positive adjustment, the cushion point adjusting
screw on Vacumotive Drive and Drive-Master
equipped cars has been changed from the knurled,
slotted head type to a hexagon head design having a
screw driver slot at the small end.
The new screw is installed so the large hexagon
head contacts the valve lever cam instead of the
small end as was previously and is secured by a lock
nut. Refer to your parts manual for the part number
of the new type screw.
ADJUSTMENT NO. 12 - PAGE 8-12
Depress clutch pedal (Important) and start engine;
do not race engine. Put transmission in second gear
manually and release the brake s. Slowly rotate the
accelerator bell-crank (0) Figure 3, until clutch
drags. Adjust the throttle cross shaft screw (T),
Figure 11, 480-490 Mechanical Procedure Manual,
until there is a slight increase in engine speed to
625-750 RPM at time car begins to move.
FIGURE 2
To provide a greater area of contact and more
25
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