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©1997, AMERICAN HAKKO PRODUCTS, INC.
ALL RIGHTS RESERVED
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MAINTENANCE.
The filters are the only parts of the HJ3100 that need maintenance. Figure 9, below, shows the major parts of the HJ3100.
Figure 8.
Illustrated parts breakdown, Hakko HJ3100.
FILTERS.
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The pre-filter should be checked every day under normal operating conditions, and replaced when dirty.
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The HEPA/carbon filter, or activated carbon filter, should be replaced every four months, or 640 hours, in normal
use. ‘Normal use’ is defined as single shift 40-hour week operation.
CAUTION
THESE FILTERS CANNOT BE CLEANED.
Do not attempt to clean the pre-filters, HEPA/carbon filters, or activated carbon
filters for reuse. Cleaning the filters will only damage them severely and render
them useless. This, in turn, will result in unfiltered air being returned to the
environment. Unfiltered air can also damage the motor.
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The particulate filter can be cleaned and reused. It is not necessary to use a pre-filter with the particulate filter.
Intervals between cleanings may vary with the application; a good sign that the filter wants cleaning is a loss of
air-flow through the pickup accessory. Recommended methods of cleaning are, in order: 1) Vacuum out the débris
with a shop vacuum; 2) Blow the accumulated material out with clean dry air; 3) Wash the filter in clean water. If
either 2) or 3) is chosen, eye protection is suggested, and the waste must be disposed of according to local
regulations.
Hoods and ducts.
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Hoods and ducts should be cleaned periodically to remove accumulated residue. Isopropyl alcohol is
recommended for this. The ducts usually require cleaning every four months due to build-up of flux and solder
residue inside them. This will become evident to the eye. Inspect flexible ducts for cracks and change them when
necessary.
Blower
Pre-filter
Main filter
Motor
Power switch
Circuit breaker
Top cover
Case
Bottom cover, with feet
Motor support
Power cord hole