27
Neutro-Vac
5200470 Rev B
Automatic Shaker Mechanism Not Working
Cause
Remedy
No input voltage
to the transformer
Using a voltmeter, check for voltage at the terminals H1 and H4 on the
transformer. If there is no input voltage, check and repair the supply lines,
fuses, etc.
No output voltage
to the transformer
Using a voltmeter check the output voltage at terminal X1 and X2 on the
transformer, (must be 115 volts AC). If there is no output voltage, replace the
transformer. With a volt ohmmeter:
a. Check the fuse inside of the electrical control box
b. Check for input and output voltage
c. Disconnect dust collector from electrical outlet
d. Replace the fuse with one of equal value if input voltage is okay, but there
is no output voltage
e. Check the shaker mechanism for mechanical binding or any debris lodged
in the shaker bar
f. Remove the bottom door assembly and inspect. Remove debris or
restriction
Interval timer has
failed
•
Check with a volt ohmmeter for voltage on the interval timer T1 terminal
after the 60 second elapsed time interval
•
Check the output voltage to the shaker motor on the T2 terminal if the
input voltage is okay
•
Replace the interval timer if there is no output voltage
Shaker motor relay
has failed
Check with a volt ohmmeter for voltage at the relay input terminal #4 after
the 60 second elapsed time interval:
•
Check voltage on the relay terminal #2
•
If there is no output voltage, replace the shaker motor relay
Capacitor has
failed
Check with a volt ohmmeter for input voltage at the input terminal of the
capacitor after the 60 second elapsed time interval:
•
Check the output voltage on the capacitor terminal
•
Replace the capacitor if input voltage is okay but there is no output
voltage
1/10th hp gear
shaker motor has
failed
•
Check the feed-line circuits to the shaker motor with a volt ohmmeter
•
Replace the shaker motor if all the terminals and components are okay but
the shaker motor still does not run
