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OPERATING
BETTCHER
MODEL UN-84 MOTOR
INSTRUCTIONS
INDUSTRIES, INC.
Rev. October 17, 2011
Page 10
6.1
Fault Detection And Correction
Problem Probable
Cause Remedy
Motor Will
Not Run
No power to motor
Check line voltage.
Make sure line voltage
matches motor spec.
plate
Bad power cord or plug
Check voltage at cord
to switch point. Refer
to Sections 8.3, 8.4,
and/or 8.5 for proper
schematic
Loose wire connections
Tighten loose
connections
Bad circuit breaker
(230V Only)
Try reseting breaker or
replace breaker if
defective (refer to
Section 8.4)
Bad switch
Check switch and
replace if defective
Motor Noisy
Bad bearing in motor
Remove and replace
Handpiece
Vibration
Machine not installed
correctly in relation to
operator position
Check installation
procedures in Section
5.1
Flex shaft/motor adapter
worn
Replace adapter
(Part Number 143077)
Содержание Whizard UN-84
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