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

SPRINGS, SHOCK ABSORBERS, & STABILIZERS 14-5
LUBRICATION
The frequency of lubrication depends upon driving conditions
and mileage. Lubrication will usually be required
more frequently in hot climates than in cold climates.
Necessity of lubrication will be evidenced by stiff riding
and squeaks.
Use only viscous chassis lubricant at fittings. Springs are
equipped with inserts and must not be lubricated.
SHOCK ABSORBERS
Direct double acting hydraulic type shock absorbers are
used at the front and rear. The front shock absorbers are
mounted axially within the front coil spring s and are cushioned
at the upper and lower ends in rubber grommets.
The rear units are identical in construction to the front
units, except that eyes are fitted at the upper and lower ends
instead of studs and are also cushioned in rubber. At the
upper end they are attached to the frame crossmember,
while at the lower end they are assembled to the rear spring
clip plates.
Both the front and rear shock absorbers are non-serviceable
and are not interchangeable to either front or rear
position.
Resistance calibration is different in front and rear shock
absorbers and is properly set at the factory.
The principles of operation are the same in the present
shock absorbers as previously used shocks. The fluid permits
satisfactory operation at temperatures as low as 400 F.
The units are permanently sealed with improved synthetic
rubber seals designed to keep the fluid in and the dirt out.
Double acting resistance is employed with the proper combination
of orifice and blow-off control to give a finely
balanced ride without further adjustment. Defective units
must be replaced.
FIGURE 5
Shock absorbers are available in either standard control
or heavy duty control (optional) on all models of passenger
cars.
The extra heavy duty control is available as an additional
option on passenger car models.
NOTE: All shock absorbers have the part number and
code stamped on the outside of the shock absorber body.
SHOCK ABSORBER NOISE :
When checking for noise, first determine that the noise is
coming from shock absorbers and not from other sources.
Check the front shock absorber top nut with its palnut and
that rubber bushings are tight and in good condition, also
that the cap screws and nuts at the bottom of the front
shocks are tight.