CE-1008
g.
Loosen the three allen-head screws holding the lower section of the limit switch in position.
Slowly rotate the switch until the ohmmeter just indicates zero.
h.
Tighten the retaining screws, remove the ohmmeter, and release the pressure brake.
(2)
CABLE WRAP ADJUSTMENT
a.
Release the electric brake and position the pedestal to the O-degree position as indicated on the
azimuth vernier.
b.
Connect an ohmmeter across A1TB1-7 (CW) and J1-K.
c.
Loosen the three screws holding the cable-wrap potentiometer, A3R1, in the antenna pedestal
and slowly rotate the potentiometer until the ohmmeter indicates the center of the total resistance.
d.
Tighten the retaining screws, remove the ohmmeter and reengage the electric brake.
(3)
ELECTRIC BRAKE, INSTALLATION AND ADJUSTMENT (See Figure 5-7)
a.
INSTALLATION PROCEDURE
1.
Locate the hub (part F) on the motor shaft 5/16 inch from the mounting face and set the
screw securely.
2.
Remove the housing, support plate assembly, stationary ring and friction lining.
3.
Attach the endplate to the motor endbell.
4.
Reassemble the items removed in step (2).
b.
ADJUSTMENT FOR LINING WEAR
1. With the power off and the indicator knob (part G) at NORMAL position, indicates the brake is
in proper adjustment.
2.
When the indicator knob is at the ADJUST position, or if marked increase in stopping time
is noted, lining wear adjustment is necessary.
3.
To adjust the lining.
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