9711QOR-86 C & Ku-Band TXRX
Maintenance
19-29
19.9.11.
Linear Pot Replacement Procedure:
The feed assembly MUST be re-calibrated if the potentiometer has been replaced, disengaged or removed
from its mounting location.
After you have ascertained that the circular section potentiometer is failed:
1.
Using your ½” open end wrench, loosen
the locking nut of the failed
potentiometer and move it away from
the body of the feed assembly on its slot
and lift it up out of the bracket through
the large hole at the end of the slot.
2.
Note orientation of the drive sprocket on
the potentiometer shaft. Loosen the
Allen set screw from, apply heat to soften
Loctite between sprocket & shaft and
remove the sprocket from the
potentiometer shaft. Save the sprocket
for re-installation.
3.
Unplug the potentiometers IDC
connector from the Motor Termination
PCB.
4.
Install the washer and locking nut onto
the threads of the pot, but do not tighten.
5.
Apply Loctite 638 (Green) to the shaft of
the potentiometer.
6.
Install the sprocket (in the correct
orientation as observed in step 2 above)
on the potentiometer shaft.
7.
Apply Loctite 222 (Pink) to the set screw
and tighten the Allen set screw.
8.
Place the replacement pot down into the
large hole in the slot of the bracket.
9.
Slide the pot into the slot so that the
bracket is captured between the body of
the pot (above) and its washer & locking
nut (below).
10.
Orient the body of the pot such that the
wire connections will be outward from
the body of the feed assembly.
11.
Plug the IDC connector into the Motor
Termination PCB (refer to drawing
134868 page 2 wiring diagram).
12.
Refer to “Linear Feed Calibration
Procedure” to calibrate the circular
section of the feed assembly.
19.9.12.
Linear Motor Replacement Procedure:
The feed assembly does not need to be re-calibrated as long as the potentiometer has not been replaced,
disengaged or removed from its mounting location.
After you have ascertained that the circular section potentiometer is failed:
Summary of Contents for 9711QOR-86
Page 4: ......
Page 14: ...Table of Contents xiv This Page Intentionally Left Blank ...
Page 26: ...Site Survey 9711QOR 86 C Ku Band TXRX 2 8 This Page Intentionally Left Blank ...
Page 70: ...Installation 9711QOR 86 C Ku Band TXRX 3 44 This Page Intentionally Left Blank ...
Page 74: ...Basic Setup of the ACU 9711QOR 86 C Ku Band TXRX 4 4 This Page Intentionally Left Blank ...
Page 78: ...Setup Ships Gyro Compass 9711QOR 86 C Ku Band TXRX 6 2 This Page Intentionally Left Blank ...
Page 80: ...Setup Band Reflector Select 9711QOR 86 C Ku Band TXRX 7 2 This Page Intentionally Left Blank ...
Page 86: ...Setup Home Flag Offset 9711QOR 86 C Ku Band TXRX 9 4 This Page Intentionally Left Blank ...
Page 90: ...Setup Targeting 9711QOR 86 C Ku Band TXRX 10 4 This Page Intentionally Left Blank ...
Page 96: ...Setup Searching 9711QOR 86 C Ku Band TXRX 11 6 This Page Intentionally Left Blank ...
Page 122: ...Antenna Specific Operation 9711QOR 86 C Ku Band TXRX 16 12 This Page Intentionally Left Blank ...
Page 126: ...Functional Testing 9711QOR 86 C Ku Band TXRX 17 4 This Page Intentionally Left Blank ...
Page 190: ...Drawings 9711QOR 86 C Ku Band TXRX 23 2 This Page Intentionally Left Blank ...
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