3
EXTENSION CORDS
Replace damaged or worn cords immediately. The table shows the correct size to use, depending
on cord length and nameplate amperage rating of machine. If in doubt, use the next heavier gauge.
An undersized cord will cause a drop in line voltage, resulting in loss of power and over-heating.
NOTE: the smaller the gauge number, the heavier the cord.
MAINTENANCE AND OPERATION INSTRUCTIONS
FOR AV-747-A VACUUM CLEANER
Though the AV-747-A is designed primarily for use on carpet, it performs very well on hard surface
floors. Sand, dust, paper, and so forth are readily vacuumed from these floors. However, it is not
recommended that this machine be used to vacuum metal slugs, metal shavings or similar type
debris from floors, either carpeted or otherwise.
Inspect the AV-747-A carton for shipping damage when received. Report any damage to delivering
freight carrier immediately.
OPERATING
a) Be sure the unit is used only on the voltage shown on nameplate.
b) When starting the AV-747-A, push down slightly and momentarily on the handle. Doing this
insures quick, easy starts, even when long pile carpets are being vacuumed.
c) In general, carpets with short naps - such as indoor/outdoor carpeting - are best vacuumed
with a setting of low, 2, or 3. Higher pile carpets are best cleaned with settings above 2. To
adjust brush height, disengage the cam lever (on right side) from the machine base and
position it in desired position. This handle is made to lock loosely in the positioning holes in
the base.
d) The rate at which an operator pushes the machine depends on the debris load, carpet nap
length, and type of debris. In areas where large amounts of “tracked in” sand are present,
carpets should be vacuumed with a double pass - that is a forward and backward pass made
without turning the machine around at the end of one pass. A slow, moderate walk pace by an
operator, normally suffices to give good cleaning results.
e) The filter bag should be kept clean. When it contains 15-20 pounds of normal debris, it is
ready for cleaning. To clean, release bag clamp and remove from machine and empty.
f) When storing, the handle may be folded over the cover. Two screws with wing nuts need to be
removed from the handle assembly when it is put in this folded position.
