Cadillac 60 Series 1963 Shop Manual page 9

2-4
LUBRICATION SERVICE AND PREVENTIVE MAINTENANCE
Either SAE 90 multi-purpose type gear lubri-
cant conforming to MIL-L-2105-B Specifications
or the special lubricant provided for this purpose
by the Parts Department can be used for cars
equipped with the standard differential. Cars
equipped with the Controlled Differential should
use only the special lubricant provided by the
Parts Department to assure the satisfactory
operation of this unit. When removing the filler
plug, take extreme care not to allow any dirt to
enter the filler hole.
Draining and refilling of the differential is only
necessary at time of replacement.
5. Power Steering
The steering gear is lubricated by the Power
Steering Hydraulic Fluid and requires no other
lubricant. The fluid level in the pump reservoir,
Fig. 2-4, should be checked every Spring and Fall
after the engine is warmed, and the reservoir kept
filled with Cadillac recommended fluid. If the dip-
stick indicates that the fluid level is extremely
low, the unit should be inspected for leaks and
corrected immediately. When adding less than
one pint of fluid, Hydra-Matic Fluid may be used.
When adding larger quantities or when making a
complete fluid change, always use special Power
Steering Fluid. Refer to Section 5, Note 1, for
checking fluid level.
6. Power Brakes
The brake fluid level of both independent sec-
tions of the master cylinder, Fig. 2-5, should be
checked at every engine oil change and every time
the power brakes are serviced. If either the front
or rear brake reservoir is found to be low, the
related hydraulic system should be checked for
leaks. Then fill the reservoirs with SAE approved
Heavy Duty brake fluid to a level 3/4 inch below
the top of the filler cap boss. Care should be
taken to wipe all dirt from the filler cap area be-
fore removing the caps to avoid contamination of
the fluid.
Figure 2-4 Power Steering Reservoir
Figure 2-5 Power Brake Reservoirs
Check the travel of the service brake pedal and
the parking brake pedal at the first oil change and
each Spring and Fall thereafter. Excessive brake
pedal travel is an indication of brake system
malfunction.
Service brake pedal travel should not exceed
1-7/8 inch during normal brake application (30
pounds force). The parking brake pedal should
travel 1-3/4 inch to 2-3/4 inch with moderate ap-
plication (50 pounds force). If parking brake ad-
justment is required, lubricate parking brake
links and cables.
Refer to Section 8 for adjustment procedures
should either pedal travel be found incorrect.
7. Hydra-Matic Transmission
a. Hydra-Matic Oil Recommendations
In order to obtain the maximum performance
and satisfaction from the Hydra-Matic transmis-
sion, it is necessary that the proper transmission
fluid be used. Whenever the transmission is
drained and refilled or fluid is added, use only
Automatic Transmission Fluid Type " A " bearing
the mark AQ-ATF, followed by either three or
four digits and the suffix letter " A " .
The original factory fill fluid in the transmis-
sion should be changed at 30,000 miles. Sub-
sequent changes should be made at 24,000 mile
intervals. For cars in commercial use, or those
subjected to heavy city traffic during hot weather
or when the engine is regularly idled for pro-
longed periods, the factory fill fluid should be
changed at 16,000 miles. Subsequent changes
should be at 12,000 miles.
b. Checking Fluid Level
The dipstick and filler tube for the Hydra-Matic
transmission are located under the hood at the