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Copyright © 2012 Clayton Associates Inc.
18
Troubleshooting Electric DM-100/300
Symptom Probable
Cause
Remedy
Vacuum will not start
Main vacuum switch is in the
OFF position.
Electricity is not connected.
Push switch up.
Confirm that the vacuum electrical cord is
plugged into an outlet. Ensure that the outlet is
energized.
Vacuum performance is low
Electrical cord is plugged into an
extension cord.
Filter bag is full or prefilter is
clogged.
Hose is clogged.
Only operate the vacuum with the 50’ cord – DO
NOT use extension cords.
Replace filter bag and/or prefilter using the Safe-
Filter-Change procedure.
Check each hose for obstruction, and remove
any debris.
Electric vacuum is running
hot
Vacuum is not drawing enough
air to cool the motors.
Open another vacuum port to allow more air into
the system. The vacuum can operate with
multiple hoses connected without a loss of
performance.
Air tools operating too fast.
Tool throttle is set too high.
Compressed air pressure is set
too high.
Reduce tool throttle with adjustment knob on tool.
Check the pressure on facility compressed air
system, and lower if over 110 PSI.
Air tools operating too slowly.
Tool throttle is set too low.
Pneumatic tool system pressure
is too low.
Not enough volume of air
available.
Increase tool throttle with adjustment knob on
tool.
Increase pressure of supply air to system. DO
NOT EXCEED TOOL PRESSURE
SPECIFICATIONS.
Confirm that the compressed air supply line is
large enough, and that there are no bottlenecks
in the air system piping.
Static electricity is causing
sparks or shocking.
System is not properly
grounded.
Ensure that shop air lines are grounded. Check
to be sure that a ground wire has been
connected to the vacuum grounding lug. Ensure
that grounded electrical cord is connected to a
properly grounded outlet.
Excessive dust is visible at
work surface.
Filter bag is full.
Fine dust has coated surface of
filter bag.
ULPA filter needs to be
replaced.
Replace filter bag and/or prefilter using the Safe-
Filter-Change procedure.
Using the Safe-Filter-Change procedure, open
the filter compartment. With a blunt tool, gently
shake the filter bag to knock particles off the
inner wall.
Check minihelic reading. With a new DustMaster
filter bag and prefilter in place, the minihelic
should read below 5.