Harbor Freight Tools 91393 - Manual (Page 10)

SKU 91393 PAGE 10
INSPECTION, MAINTENANCE, AND CLEANING
1. WARNING! Make sure the Switch Box (19) of the Air Filtration System is in its
“OFF” position and that the product is unplugged from its electrical outlet before
performing any inspection, maintenance, or cleaning procedures.
2. BEFORE EACH USE, inspect the general condition of the Air Filtration System.
Check for loose screws, misalignment or binding of moving parts, cracked or bro-
ken parts, damaged electrical wiring, and any other condition that may affect its
safe operation. If abnormal noise or vibration occurs, have the problem corrected
before further use. Do not use damaged equipment.
3. Periodically, inspect the Pleated Type Filter (1) for dirt and debris, and if necessary,
remove and change the Pleated Type Filter (1). On the rear of the unit lift the
Pleated Type Filter (1) so that its bottom edge clears the bottom lip of the opening.
Swing the bottom out and remove the Pleated Type Filter (1) and inspect it to see
whether it needs a simple cleaning, or it needs replacement. Reinsert the Pleated
Type Filter (1). See FIGURE 3.
FIGURE 3
Pleated Type
Filter (1)
Note: During this procedure, wear ANSI approved safety goggles and a dust mask.
4. Periodically, inspect the 3-Pocket Type Filter (2) for dirt and debris, and if necessary,
remove and change the 3-Pocket Type Filter (2). Remove the Pleated Type Filter
(1), as explained above. Then, remove the 3-Pocket Type Filter (2) the same way
and inspect it. If necessary, use compressed air to blow dirt and debris from the 3-
Pocket Type Filter (2). Replace the 3-Pocket Type Filter (2) and the Pleated Type
Filter (1) in the rear of the unit. See FIGURE 3.
3-Pocket Type
Filter (2)
Note: Replacement filters are available from Harbor Freight:
ITEM 91524 - Pleated Type Filter (also part 1)
ITEM 91516 - 3-Pocket Type Filter (also part 2)