Tally T6090, Maintenace Manual

Page: 54 / 202

T6090 Maintenance Manual
3–8
Table 3–1, Continued
MESSAGE Explanation and Corrective Action
Shuttle Fault
Explanation:
If the control processor detects the shuttle operating either above or
below the proper frequency, it shuts down the shuttle and attempts to
restart it. If the shuttle still operates incorrectly after three consecutive
attempts, the Control Processor goes Offline, and the Shuttle Fault
message is displayed.
Corrective Action:
Depress the CLEAR Key, then put the printer back Online. Send a
print job to the printer or perform a print test.
If the error condition returns, cycle printer power, then try to print again
It the fault condition returns after performing the above actions,
perform the following checks:
Check and verify that the shuttle drive belt is not broken or loose.
Replace it if it is.
Check sensor position, cable, and CBA connection. If the connection
and cable are OK and the sensor is properly installed, perform a
meter check of the Shuttle Motion Sensor (see TEST Menu Section of
Chapter 2 in this manual). The sensor should read less than .5 volts
with the closed segment of the shuttle gear over the sensor and
greater than 4.5 volts with the open segment of the gear over the
sensor. If the readings are not within the range listed above, remove
and replace the sensor.
If the sensor is OK, turn the shuttle drive gears by hand. If they do not
turn freely, remove the shuttle mechanism and check it again. If it
turns freely while removed, check the Hammer Bank for free side to
side movement.
If the Hammer Bank is binding and does not slide freely, replace the
shaft bearing blocks on the Hammer Bank.
If the shuttle mechanism still does not turn freely or you find broken or
excessively worn gears, replace the Shuttle Drive Mechanism.
If they turn freely, the Hammer Bank is not binding, and no excessive
wear is present, perform a motor check using the Shuttle Selection
under the Motor Parameter in the TEST Menu. If the motor does not
function properly, check the drive motor connection on the Engine
Controller CBA and check the motor cable. Correct any problems you
encounter with these items.
If the connection and cable are OK, check and ensure that the proper
voltage is provided at the motor connector plug on the Engine Control-
ler CBA. If the voltage is incorrect, check voltage at the Power
Supply. If power supply voltage is OK, replace the Engine Controller
CBA. If Power Supply voltage is not correct, check the input voltage.
If the input voltage is OK, then replace the Power Supply. If the input
voltage is not correct, there is a problem with the site power supply.