Airstream INTERNATIONAL TRAILER Owner's Manual page 107

AIRSTREAM INTERNATIONAL TRAILER OWNERS MANUAL
Maintenance
Lubrication
To lubricate the elevating gear apply a
liberal amount of silicone spray
lubricant to the elevating gear with the
lift in the down position, then run the lift
up and down a few times to distribute
lubricant over gears.
Lubricating Rotating Gear Housing
In the event that rotating the antenna becomes difficult,
lubricating the bearing surface between the rotating gear
housing and the base plate can restore normal operation.
Any spray type silicone lubricant may be used.
Elevate antenna and remove setscrew from rotating gear
housing as shown. Spray lubricant into hole and around
edges of gear housing. Rotate gear housing until lubricant
coats bearing surfaces and antenna rotates freely.
Elevating Shaft Worm Gear Assembly Replacement
Procedure
NOTE: It is not necessary to remove the rotating gear
housing (11) from the base plate (14) or remove the antenna
from the roof to replace the shaft and gear assembly.
STEP 1: Lower antenna to travel position. Loosen set -
screw on elevating crank (23); remove crank, spring (20),
and directional handle (19).
STEP 2: Remove top retaining ring (5) from top pin (4)
holding top elevating tube in rotating gear housing and
remove pin.
STEP 3: Remove plug from top of rotating gear housing
elevating gear (8) and remove elevating shaft assembly (10).
STEP 4: Cut new shaft to same length as one removed.
STEP 5: Lubricate worm gear on new elevating shaft
assembly with spray silicone lubricant, make sure wave
washer, flat washer and quad ring are on lower bearing and
insert assembly in housing.
STEP 6: Install plastic plug in top of housing, re-engage
elevating gear in worm gear, replace pin and retaining ring.
STEP 7: Replace directional handle, spring and elevating
crank. Make sure setscrew contacts flat on shaft before
tightening.
G-19