1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

OVERDRIVE 9 - 15
3. Install the ring gear (1), Figure 13 on the overdrive
mainshaft (3) and lock it in place with the large snap ring
(2).
NOTE: To facilitate Installation of the main-shaft
(output shaft) on the free wheeling cam rollers, insert the
free wheeling rollers in the cam roller retainer cage, using
heavy grease to hold them in position. Then, with the
low gear of the transmission engaged, turn the cage and
rollers counter-clockwise until the rollers are in their low
positions, and snap a tight fitting rubber band around
them. Install the output shaft and ring gear on the pinion
cage and free wheeling clutch cam and roller unit assembly,
turning the shaft to the left as it assembles over the
clutch rollers Figure 25.
Insert J-4149 O.D. Aligning Pilot in lower right hand hole
of adaptor and housing while tightening the other three
Overdrive to transmission case bolts. Tighten all 4 bolts to
20-30 ft. lbs. torque.
6. Install control shaft locating pin, large end up.
7. Install control switch, governor pinion, and governor
switch.
8. Install companion flange, washer, and nut. Tighten nut to
90-100 lbs. torque.
9. Add lubricant to get proper level in both transmission and
O.D. units.
SERVICING UNITS THAT REQUIRE
REMOVAL OF COMPLETE
ASSEMBLY
REMOVAL: (Single Lever Type )
1. Remove front seat cushion.
2. Remove the four bolts attaching the bottom of front seat
frame to seat track. Remove two screws attaching seat
adjusting lever to seat frame and remove seat back from
car.
FIGURE 25
OVERDRIVE HOUSING
Installation
1. Remove bolt holding adaptor to transmission case.
2. Install overdrive to adaptor gasket.
3. Install overdrive case.
4. With the control switch removed, insert a long thin drift
through the housing at the control switch opening to line
up the retractor spring and the overdrive shift rail.
5. While case is being Installed, push the control shaft
inward and engage the slot in the shift rail with the shifter
shaft lug. ( Lug must be up and outside control lever
down.)
3. Disconnect accelerator pedal at accelerator rod.
4. Remove foot brake pedal rod from brake lever.
5. Pull the steering column hole rubber grommet up out of
the way.
6. Remove the floor mat.
7. Remove Hudson Weather Control b1ower unit held by
four screws, (2 each side). Disconnect cable at Ranco
weather control valve.
8. Disconnect plug at overdrive kickdown switch.
9. Release speedometer cable from clip on under side of floor
opening cover.