Pine Research MSR 636A, User Manual, Page: 127 / 176

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DRU10002 (REV 004 / JAN 2017)
8 Troubleshooting
This section describes some basic troubleshooting considerations when working
with a rotator. If problems with the rotator persist, contact the factory for further
assistance (see Section 1.5).
Problem Suggested Cause or Action
No Rotation Confirm that the unit is connected to a live power outlet.
Confirm that the power switch has not tripped and that it
is in the "on" position. Reset the switch if necessary.
Check the front panel circuit breaker and reset the
breaker if necessary.
Check the motor control cable which connects the
control unit to the motor unit. The connectors at both
ends of this cable must be secured using the two screws
on each connector.
The rotation rate knob may be set to full counterclockwise
position. If this is the case, then rotate the knob clockwise
to increase the rotation rate.
The motor, the shaft or one of the bearings may be frozen
due to corrosion, or one of the boards or cables may be
loose. Turn off the rotator, disconnect power, and then
try the following procedure:
WARNING:
Risk of electric shock.
Disconnect all power before servicing the rotator.
AVERTISSEMENT:
Risque de décharge électrique.
Déconnectez toutes les sources d’alimentation avant
de procéder à l’entretien du rotateur.
Check for freedom of rotation of the shaft by manually
attempting to rotate the shaft.
Look inside the control unit and confirm that the printed
circuit board is fully inserted into its connector.