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 9.
Spray lubricant
here on elevation gear
Remove cap and spray lubricant into the lubricate hole. Be sure place cap firmly back on.
Spray lubricant around edges
FIGURE 9
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 10). This will keep quad ring from becoming brittle which could result in leaks down elevating shaft.
WAVE WASHER | FLAT WASHER |
ELEVATING SHAFT |
|
WORM GEAR |
|
FIGURE 10
LOWER BEARING SURFACE
RUBBER QUAD RING
ELEVATING SHAFT & WORM GEAR ASSEMBLY REPLACEMENT PROCEDURE
Rev 1/97
10
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 14.
STEP 2. Remove hex nuts, cable clip, and washer from bolt holding elevating tube in rotating gear housing and remove bolt. Parts list page 12.
STEP 3. Remove worm gear nut from top of rotating gear housing, disengage elevating gear, remove elevating shaft assembly. A, Parts list page 12.
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 10) and insert assembly in housing.
STEP 5. Reinstall worm gear nut 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.
