KVH Industries TracVision G4 User Manual Page 113

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2. Roll the belt over the motor hub while slowly
moving the antenna reflector through its vertical
travel. Work the belt out from between the antenna
pulley and reflector.
3. Carefully work the new belt in between the
antenna pulley and the reflector. Ensure that the
teeth are on the inside of the belt. Feed the belt
behind the roller and over the motor hub. Once
the belt is in place, work it back and forth to
ensure that the belt is aligned and the teeth are
engaged with the motor pulley.
4. Loosen the nuts and gently press downward on
the motor hub until the drive belt is at proper
tension. Adjust the belt tension for a maximum of
1
8" (3 mm) deflection with moderate finger
pressure between the motor and antenna pulley.
Some readjustment may be necessary if the belt
tension results in excessive antenna reflector
vibration.
5. Tighten the holding nuts.
Replacing the Elevation Drive Motor
1. Remove the main PCB cover, as explained in
“Removing the Main PCB Cover” on page 106.
2. Remove the Elevation Motor Molex connector
from the main PCB (see Figure 5-3 on page 107).
Feed the elevation motor cable through the cutout
to the front of the support frame.
3. Remove the four stop nuts and washers that
secure the motor to the support frame (see
Figure 5-9 on page 113). Remove the motor
assembly.
4. Install the new motor assembly with the elevation
motor cable facing down, as shown in Figure 5-9.
Reinstall the stop nuts and washers but do not
tighten.
5. Raise the motor and work the toothed drive belt
over the outer lip of the motor hub. Press down
gently on the motor body while rotating the
antenna reflector up and down to ensure free
movement.
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TracVision G4 Technical Manual
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