Brake Cables and Conduits
To assure freedom of operation the rear
wheel parking brake cables and conduits
should be cleaned and graphite grease ap-
plied every 5,000 miles.
Clean exposed portion of cables with kero-
sene. Remove cap screws at front conduit
abutment cap, spring clip and rear cable
abutment cap. Remove abutment caps.
Slide conduit forward on cable to expose
the entire covered portion of cable and
apply graphite grease as shown in Figure
21.
Transmission
To provide proper transmission lubrication,
the lubricant used must be able to with-
stand the pressures developed between the
gear teeth and also flow freely into the
small clearances of the bearings.
These qualities can be obtained in
S.A.E. 90 E.P. (extreme pressure) gear oil
for summer, and S.A.E. 80 E.P. gear oil
in winter. Three ounces of kerosene may
be added to the lubricant when hard shifting
is encountered during extremely cold
weather.
It is advisable to change transmission lu-
bricant every 5,000 miles. To drain old
lubricant, remove drain plug (A), Figure
22. After draining, replace plug securely.
Remove filler plug (B) and refill with
three pounds (or pints) of fresh oil of
proper specifications. Replace filler plug
securely.
Rear Axle
The lubricant selected for rear axle lubri-
cation is likewise important, inasmuch as
it must be capable of withstanding the
pressures developed between the gear
teeth, and also to flow freely to enter the
small clearances and circulate through the
22 H U D S O N T E R R A P L A N E
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