Airstream 1980 Argosy Owner's Manual page 16

sleeve back. Check for proper locking by firmly
pulling trailer's hose fitting.
To disconnect, push knurled coupling torward
and pull hose fitting free. Store the hose by
sliding the fitting down over the storage pin
located on the front of the tongue. Never allow
the hose to rest on the ground. This can cause
contarr~inants to get on the fitting and be drawn
into the actuator mechanism.
Important: A coupling plug must be inserted in
the tow vehicle's vacuum connector when the
trailer is disconnected. Operating your engine
without the plug will result in a vacuum leak.
This may result in engine misfiring, or
inoperative vacuum boosted accessories
(brakes, emissions, etc.) Extended operat~on
may cause engine damage. An extra plug is
supplied in the kit.
The power brake booster (Fig. 3) located in
the trailer tongue supplies hydraulic pressure to
the disc brake calipers. The fluid level in the
booster's master cylinder reservoir should be
checked twice a year. If necessary, add fluid to
bring level to within 1 / 4 inch of the top of the
reservoir. With disc brakes, fluid level can be
expected to fall as the brake pads wear. Only
brake fluid confarming to DOT 3 should be
used. Use only fresh brake fluid that has been
in a tightly closed container to avoid
contamination from foreign matter or moisture.
Periodically check actuator breather. Replace
element if dirty.
When the trailer vacuum hose (Fig. 4) is
disconnected from the tow vehicle, the trailer
brakes are automatically applied. This provides
F I ~ 3
-
Power Brake Actuator and Breather F I ~ 5
-
Brake Release Knob
Fig. 4
-
Trarler Vacuum Hose Storage F I ~ 6
-
DISC Brake Cal~pers, Hub and Rotor