KVH Industries TracVision 6 - Manual (Page 64)

4.7 Replacing the Elevation Motor
and Belt
The elevation motor is mounted to the inside of the support
frame. Machine screws and washers hold the drive motor in
position to maintain proper tension on the toothed drive belt.
Figure 4-9 shows the arrangement of motor, drive belt, and
antenna pulley.
Replacing the Drive Belt
1. Loosen the four #8-32 Phillips screws until the
motor is free to move upward. Raise the motor to
the top of the slots and retighten the screws to
hold it there.
2. Roll the belt over the motor hub while slowly
moving the antenna reflector along its elevation
axis. 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
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.
Maintenance
54-0166 63
Drive Belt
Pulley
Motor Screws and Washers
Elevation Motor
Side View Front View
Motor Hub
In-line Connector
Tie-wraps
Figure 4-9
Elevation Drive Mechanism