INTRODUCTION
MOTOR
Electric thru-flow vacuum motors must never be used in
applications in which wet or moist conditions are involved,
where dry chemicals or other volatile materials are present,
or where airflow may be restricted or blocked. Such motors
are designed to permit the vacuumed air to pass over the
electrical wiring to cool it. Therefore, any liquid (including
water), dry chemical, or other foreign substance that
would come in contact with electrial conductors could
cause combustion (depending on volatility) or electrical
shock. Failure to observe these precautions could result in
property damage and personal injury, including death in
extreme cases.
ELECTRICAL
All backpack models are available in 120 volt/60 Hz. Severe
changes in voltage, high or low, can cause damage to the
motor and cause premature motor failure.
The vacuums are equipped with a thermal protection cutoff
device. This integrated thermal cutoff switch will remove
power from the vacuum motor in the event excessively
high operating temperatures are detected. This condition
may arise as the result of a blocked vacuum passage, or
clogged or full filters.
Should a thermal trip take place, immediately turn off
the vacuum and inspect for a blockage and verify the
condition of the filter bag. Replace or empty the filter bag
as required. The vacuum will require several minutes to
cool down to a safe operating temperature. When this
temperature is attained, the thermal switch will reset and
the vacuum will be able to be used in a normal manner.
Use only manufacturer's replacement extension cord
or one that is properly sized for your application. Do not
use an extension cord with conductors smaller than 16
gauge (AWG) in size and make sure to only use a three-
wire outdoor extension cord provided with a three-prong
grounding plug and receptacle. To reduce power loss, use
a 14 AWG extension cord if longer than 50 ft. Extension
cord jacket type should be SJT or better. Extension cords
in poor condition or too small in wire size can pose fire
and shock hazards. To reduce the risk of these hazards, be
sure the cord is in good condition and that liquid does not
contact the connection.
PAGE 2 OF 24
SAFETY CONTINUED
GROUNDING INSTRUCTIONS
THE VACUUM MUST BE GROUNDED. If vacuum should
malfunction or stop working, grounding provides a path of
least resistance for electrical current, thereby reducing the
risk of electrical shock. This unit is equipped with a cord that
has an equipment-grounding conductor and grounding
plug. The plug must be inserted in an appropriate outlet
that is properly installed and grounded in accordance with
all local codes and ordinances. Cutting off the ground wire
or using a cord that is not equipped with a ground plug will
void the warranty of the unit.
1. The vacuum is for use on a nominal 120-volt circuit,
and has a grounding plug (See Figure 1).
Figure 1
WARNING! To reduce the risk of personal injury
due to a loose electrical connection between the
appliance's plug and extension cord, firmly and
fully attach the appliance plug to the extension
cord. Periodically check the connection while
operating to ensure it is fully attached. Do not
use an extension cord that provides a loose
connection. A loose connection may result in
overheating or fire and increases the risk of a burn.
To reduce the risk of disconnection of the vacuum
cord from the extension cord during operating:
Secure the extension cord to the vacuum plug
using the cord holder on the waist belt as shown
on page 5, Figure 16 and described on page 5
under Operating The Vacuum, items 1 and 2.
Maintain appliance with care. Inspect extension
cords periodically and replace if damaged.
WARNING! Improper connection of the
equipment grounding conductor can result in a
risk of electrical shock. Check with a qualified
electrician or service person if you are unsure that
the outlet is properly grounded. Do not modify
the plug provided with the vacuum. If it will not
fit the outlet, have a proper outlet installed by a
qualified electrician.
Grounding Blade is
Longest of 3 Blades
Grounded
Outlet Box
0919 IH-5048