Elevation
Drive Cable
Tension
Adjustment
Step 1
Step 2
Step 3
Step 4
Adjustment of the elevation cable tension does not require a unique elevation angle, only an elevation angle that allows convenient access to cable tension adjusting nuts (Figure 4).
Figure 4. Elevation Cable Tension Adjustment
Cable tension adjustment for the elevation drive is similar to the azimuth drive, except there are individual slots for the precision key stock at each cable location in the eleva- tion spring housing, (Figure 5).
Figure 5. Individual Slots for Precision for Precision Key Stock
After verifying/performing elevation cable tension procedure on both ends of each cable and each elevation drum cable assembly, the following steps two through four will com- plete this procedure.
Run elevation drive system through entire range of movement (0° to 66° elevation) sev- eral times to distribute cable tension evenly along the length of each cable.
Recheck/verify cable tension at both ends of each of the elevation cable(s) in accor- dance with the above recommended procedure.
Repeat above elevation cable tensioning procedure if necessary.
13 | Maintenance |