Thermo Scientific
imPULSE S.U.M. with Touchscreen Console User’s Guide
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Chapter 7
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Maintenance and troubleshooting
7.3 Preventive maintenance guidelines
Follow the preventive maintenance guidelines below to ensure
dependable system use. Wear components should be visually
inspected before and after use. Refer to the drawings on the ETP for
information on replacement parts.
Note:
The reusable S.U.M. bearing
port should be replaced annually.
Drive motor
The drive motor is an industrial-grade induction motor with a
permanently sealed and lubricated gear box. The drive motor will
operate a minimum of 10,000 hours at a continuous load before it will
need to be replaced.
7.4 imPULSE S.U.M. troubleshooting
The issues listed below are the most common problems that could
occur during imPULSE operation. Should the system fail to operate
correctly, reset all instruments and control devices.
The motor drive will not run.
• Check the guard and guard sensor to ensure they are fully in place.
Adjust the guard until it is in the correct position, and/or adjust the
guard sensor as necessary. On larger units, check that the door is
closed, and that the emergency reset button has been pressed.
• Check the circuit breaker to see if it has been tripped. If the breaker
was tripped, reset the circuit breaker.
• Ensure that the crank shaft is unbroken, and the linear bearings
are not jammed. Replace the crank shaft and/or linear bearings, if
necessary.
The motor speed display is incorrect.
• Reset to factory settings if the display is not set correctly.
• Check the circuit breaker to see if it has been tripped. If the breaker
was tripped, reset the circuit breaker.
The displayed weight is incorrect.
• Remove the shipping block if it is still in place.
• Check for broken wires. If any broken wires are found, replace the
load cell(s).
• Torque the mounting bolts if they are loose.
• Check the circuit breaker to see if it has been tripped. If the breaker
was tripped, reset the circuit breaker.
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