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Cadillac 1973 Owner's Manual page 17

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tune·up, wheel alignment, and wheel
balancing.
1. Check cooling system to see that It is clean
and rust·free.
HITCHES
To assist in attaining good han
of the car-
trailer combination, it is imporao that trailer
tongue load be maintained at approlUfnately 10%
of the loaded trailer weight. To
e oad can be
adjusted by proper distribution of the load in the
trailer and can be checked by we
9 the loaded
trailer and then the tongue.
Adjusting load Equalizer Hitch
If
Your Cadillac
Is Equipped With Autom'tic Level Control
IMPORTANT: Vehicle must be curb weight.
Curb weight means having full gas tank, spare
tire in place, but no passengers Dr trunk load.
1.
Exhaust all air from system as follows:
Exhaust compressor tank using service valve.
Exhaust shock absorbers by jacking rear of
car above normal height. Hold until no
further air is exhausted ... about 2 minutes.
2. Install frame·mounted hitch and set ball
height as specified by trailer manufacturer
with all air exhausted as in Step 1 above.
3. Hook up trailer and adjust tension on
equalizing bars per hitch manufacturer's
specifications with all air exhausted as in
Step 1. Note this adjustment.
4. Compressor will rKharge the leveling system
within 15 to 20 minutes of normal driving.
5. On all futul! trailer hook·ups, simply attach
trailer with the equalizing bars set to the
previously determined adjustment.
6. The procedure described above applies to all
types of frame-mounted equalizing hitches.
BRAKES
If
a trailer brake is to be used with your Cadillac
make sure you follow the recommendations of the
trailer brake manufacturer for installation of the
components required for trailer brake actuation
and balance. Refer to the preceding cautions (four
and five) regarding car and trailer brakes.
All hydraulic components must be capable of
withstanding 3000 psi. The hydraulic connection
must be made to the rear outlet of the brake
master cylinder before the brake combination
valve. Copper tubing
is
subject to fatigue failure
and must not be used in such connections.
In general, direct connection of a trailer
hydraulic brake system to the vehicle brake system
will not meet these requirements, and, therefore,
must not be used.
For optimum brake performance, the brake
balance between the car and trailer must be
adjusted.
TIRES
When towing trailers, tires should be inflated to
the highest inflation pressure shown on the placard
affixed inside glove compartment door. The allow-
able passenger and cargo load, also shown on the
same placard, is reduced by amount equal to the
trailer tongue load on the trailer hitch.
TRAILER TOWING TIPS
Towing a trailer with ease and safety requires a
certain amount of experience before setting out on
the open road. Always remember that the handling
and braking characteristics of any car may
be
fl5l
changed
con~derably
by the added weight of the
~

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