2
THEORY OF OPERATION
This unit is a wall mounted air cleaner employing a high performance blower producing very high velocity airflow through
the arm removing harmful smoke from an operators breathing zone. The air exits the motor and travels through a hose
into a filter box. Fine solid particulate and smoke is removed from the air as it is pushed through a series of filters.
An initial 2 inch aluminum pre-filter collects large particles and potential sparks before they reach a 2 inch pleated
pre-filter. These relatively inexpensive pre-filters prevent the more expensive main filter from becoming quickly clogged.
The pre-filters may be changed several times before the main filter needs to be changed.
Upon leaving the pre-filters, the air passes through the main filter, which removes even smaller particulate. The clean air
then goes back into the atmosphere.
All factory furnished filters have a U.L. class II rating and using any filters other than those specified for this unit
is not recommended.
Use of any product other than that recommended by the manufacturer will void the warranty.
The main (or final) filter may be selected from three (3) grades available, depending upon the level of performance
desired. All of these are high efficiency multi-flow filters which feature extended surface area for long life in high velocity
filtration systems.
Selection of the filter best suited for the job should be discussed with a dealer or a factory representative
UNPACKING
Carefully inspect the unit for concealed damage that may have occurred during shipping and handling. If any damage is
found, immediately contact the freight company. Make sure that there are no dents in the housing, as they will prevent
the filters from sliding into the units smoothly.
Blower Maintenance:
BEFORE ANY MAINTENACE OR SERVICE IS PERFORMED, BE SURE THE UNIT IS DISCONNECTED FROM THE
POWER SOURCE TO PREVENT ACCIDENTAL STARTING.
Periodic cleaning is necessary for blower housings and fan wheels constructed of steel. Carefully clean fan wheels with a
wire brush. Failure to clean fan wheel could result in an imbalance and cause premature failure of the unit.
Blower housings and fan wheels constructed of aluminum are maintenance free.
Motor Maintenance:
BEFORE ANY MAINTENACE OR SERVICE IS PERFORMED, BE SURE THE UNIT IS DISCONNECTED FROM THE
POWER SOURCE TO PREVENT ACCIDENTAL STARTING.
Blow off the motor using low pressure air to remove dust and dirt. Air pressure above 35 PSI should not be used. High
pressure may cause damage to insulation. Excess dust may cause excessive temperature.
Lubrication:
Lubrication of the motor should be done periodically as specified by the motor manufacture. If the motor run in continuous
high ambient temperatures, in dirty or moist locations, subject to high vibrations or where the shaft end is hot, the motor
should be lubricated every 6 months.
Contact Baldor Motors (www.baldor.com) for more complete maintenance and service instructions.
Summary of Contents for 73-501
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