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MAINTENANCE
MOUNT LUBRICATION
To lubricate the mount, apply a liberal amount of silicone spray lubricant to
the elevating gear, the lubricant hole and between the gear housing and
baseplate. Run the antenna up/down and rotate the antenna to distribute
the lubricant. See Figure 6.
LUBRICATING RUBBER QUAD RING
Lubricate rubber quad ring on elevating shaft which is below worm gear
with silicone spray lubricant at least twice yearly (Figure 8). This will keep
quad ring from becoming brittle which could result in leaks down elevating
shaft.
FIGURE 6
WAVE WASHER
FLAT WASHER
RUBBER QUAD RING
ELEVATING SHAFT & WORM GEAR ASSEMBLY REPLACEMENT PROCEDURE
NOTE: It is not necessary to remove rotating gear housing from base
plate or remove antenna from roof to replace the shaft & worm gear
assembly.
STEP 1. Lower antenna to travel position. Loosen screw on elevating
crank, remove crank, spring, directional handle. Parts list page 12.
STEP 2. Remove hex nuts, cable clip, and washer from bolt holding
elevating tube in rotating gear housing and remove bolt. Parts list page 10.
STEP 3. Remove plastic plug from top of rotating gear housing, disengage
elevating gear, remove elevating shaft assembly. Parts list page 10.
STEP 4. Lubricate worm gear assembly on new elevating shaft assembly
with spray silicone lubricant. Make sure wave washer, flat washer and
quad ring are on lower bearing (Figure 7) and insert assembly in housing.
STEP 5. Reinstall plastic plug in top of housing. Gears will mesh
automatically once elevating crank is turned.
STEP 6. Reinstall bolt, hex nuts, cable clip and washers that hold elevating
tube in rotating gear housing.
STEP 7. Replace directional handle, spring and elevating crank. Make
sure set screw contacts flat surface on shaft before tightening.
FIGURE 7
ELEVATING SHAFT
WORM GEAR
LOWER BEARING SURFACE
Spray lubricant
around edges
Spray lubricant
here on elevation gear
Remove cap and spray
lubricant into the lubricate
hole. Be sure place cap
firmly back on.