Chassis - Airstream Excella 1975 Owner's Manual

Chassis
The Dura-Torque axle is designed to last the
life of your trailer without service, except for
lubrication of the wheel bearings. Under no
circumstances should welding be done on or
near the axle.
The Kelsey Hayes Brakes are operated by 12
volt current from your car and must be
hooked up so that you have an integral
system with your car brakes. To prevent
problems and insure satisfactory braking
action, install a Kelsey Hayes Controller (or
equivalent) and selective resistor in line with
the controller in your car.
"on" position should provide firm braking
action just short of skidding on dry pavement.
Follow the chart below and change the setting
to achieve greater or less braking, as required.
The adjustment setting of the controller and
the selective resistor should be checked by
your dealer during regular maintenance
inspection.
Trailer Brake Controller
A Kelsey Hayes Controller (or equivalent)
installed in your car will synchronize the
trailer brakes with your car brakes. It is
designed to apply the trailer brakes just
before your car brakes. To adjust, turn the
handle counterclockwise to apply trailer
brakes earlier and clockwise to apply trailer
brakes later. The controller will hold this
Selective Resistor
All settings shown are for 12 volt tow car with 12 volt brakes,
and trailers with 2 axle - 4 brake arrangement except where
noted.
Model
Trailer Wt. (lbs.)
Setting
21 Ft. Single Axle — 2 brake
23 Ft. Single Axle - 2 brake
3500 - 4000
3500 - 4000
setting.
A selective resistor to match the weight of
your trailer to the controller should be
installed on the fire wall of your engine
compartment. It should be correctly adjusted
during installation. However if you wish to
change the action of your brakes proceed as
follows:
Check the initial trailer brake application with
the controller fully applied (clockwise). If the
resistor setting is correct, the controller full
21 Ft. Single Axle — 2 brake 4000 — 4500
23 Ft. Single Axle - 2 brake 4000 - 4800
23 Ft. 4500 - 5200
25 Ft. 4500 - 5200
27 Ft. 4500 - 5200
No resistor required.
Attach both leads to
terminal B.
D
B
23 Ft. 5200 - 5800
25 Ft. 5200 - 5800
27 Ft. 5200 - 6000
29 Ft. 5200 - 6000
31 Ft. 5200 - 6000
27 Ft.
6000 - 6200
29 Ft. 6000 - 7100
31 Ft.
6000 - 7100
D
B