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

STEERING GEAR 13 - 1
Type
Ratios - 5A, 6A, 7A, 8A
4A
Gear shaft bearings
Worm shaft bearings
High Point
Lubrication
Wheel Nut Torque
Gear Shaft Nut Torque
Gear to Frame bolts
SECTION 13
STEERING GEAR
SPECIFICATIONS
Worm and 3 tooth roller
20.4 to 1
18.2 to 1
Needle
Tapered roller
Notch on steering column tube straight down
S A.E. 90 E.P.
20 to 30 foot pounds
125 to 140 foot pounds
50 to 60 foot pounds
CONSTRUCTION
The steering gear employs a worm gear and three tooth
roller. The worm is pressed on the lower end of the steering
column tube and operates on two tapered roller bearings. The
three tooth roller operates on needle bearings. The gear shaft
operates on two needle bearings separated by a bearing spacer
in the shaft housing.
A leather oil seal at the end of the gear shaft protects the unit
against loss of lubricant. A grease retainer tube is pressed into
the worm cover to provide a passage for the horn wire and seal
the lubricant in the housing.
Provisions for mechanically eliminating all play within the
mechanism have been provided. There is no need of being
forced to choose between a stiffly operating unit and one
having lost motion, since adjustments can be set at the will of
the adjuster at the most desirable point.
In this type of gear, the major adjustments are accomplished
with the use of shims. The need for adjustment, however,
should present itself only after considerable usage.
Before altering any adjustments, jack up front wheels of car
and make sure that cause of complaint is not from some other
looseness such as ball sockets, and so forth.
A thrust plate is assembled on the end of the gear shaft
adjustment screw and fits into a slot in the end of the gear
shaft. The adjustment screw is held in place by a look plate
and lock nut. Adjustment of the roller shaft for proper mesh
with the worm gear is accomplished by turning the adjustment
screw in the gear shaft cover.
Adjustment of the worm gear for end play is accomplished
by removing or inserting shims between the worm cover and
housing.