DUST COLLECTOR
70 GALLON, 2 HP
Model 45378
ASSEMBLY AND OPERATING INSTRUCTIONS
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Copyright © 2001 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions and replacement parts, please call 1-800-444-3353
Revised Manual 05/03
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7. Dress properly. Do not wear loose clothing or jewelry as they can be
caught in moving parts. Protective, electrically nonconductive clothes and
nonskid footwear are recommended when working. Wear restrictive hair
covering to contain long hair.
8. Use eye and ear protection. Always wear ANSI approved impact safety
goggles and dust mask or respirator.
9. Do not overreach. Keep proper footing and balance at all times. Do not
reach over or across electrical cables or vacuum hoses.
10. Maintain tools with care. Inspect tool cords periodically and, if damaged,
have them repaired by an authorized technician.
11. Use the right Dust Collector for the job. Do not attempt to force a small
Dust Collector to do the work of a larger industrial Dust Collector. There are
certain applications for which this Dust Collector was designed. Do not
modify this Dust Collector and do not use this Dust Collector for a purpose
for which it was not intended.
12. Stay alert. Watch what you are doing; use common sense. Do not operate
Dust Collector when you are tired.
13. Check for damaged parts. Before using any tool, any part that appears
damaged should be carefully checked to determine that it will operate
properly and perform its intended function. Check for alignment and binding
of moving parts; any broken parts or mounting fixtures; and any other
condition that may affect proper operation. Any part that is damaged should
be properly repaired or replaced by a qualified technician. Do not use the tool
if any switch does not turn On and Off properly.
14. Replacement parts and accessories. When servicing, use only identical
replacement parts. Use of any other parts will void the warranty. Only use
accessories intended for use with this tool. Approved accessories are
available from Harbor Freight Tools.
15. Do not operate tool if under the influence of alcohol or drugs. Read
warning labels on prescriptions to determine if your judgment or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the tool.
16. Use proper size and type extension cord. If an extension cord is required,
it must be of the proper size and type to supply the correct current to the tool
without heating up. Otherwise, the extension cord could melt and catch fire, or
cause electrical damage to the tool.This tool requires use of an extension
cord of 0 to 15 amps capability (up to 50 feet), with wire size rated at 16
AWG. Longer extension cords require larger size wire. If you are using the
tool outdoors, use an extension cord rated for outdoor use. (signified by
“WA” on the jacket).
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17. Take caution as some woods contain preservatives such as copper
chromium arsenate (CCA) which can be toxic. When using these
materials extra care should be taken to avoid inhalation and minimize skin
contact.
18. Maintenance. For your safety, maintenance should be performed regularly
by a qualified technician.
Note: Performance of this tool (if powered by line voltage) may vary depending on
variations in local line voltage. Extension cord usage may also affect tool perfor-
mance.
Warning:The warnings,cautions, and instructions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur. It
must be understood by the operator that common sense and caution are fac-
tors which cannot be built into this product, but must be supplied by the opera-
tor.
Unpacking
When unpacking, check to make sure the parts listed on page 6 are included. If
any parts are missing or broken, please call Harbor Freight Tools at the number
on the cover of this manual.
WARNING: This product contains or, when used, produces a chemical
known to the State of California to cause cancer and birth defects or other
reproductive harm. (California Health & Safety Code 25249.5, et seq.)
Assembly
Your Dust Collector will require complete assembly prior to use. It is important that
you read the entire manual to become familiar with the product BEFORE you use
the Dust Collector. Before assembling the Dust Collector be sure that you have all
parts described in the Parts List and Assemby Diagram.
Step 1) Place Caster (#1) in place on the underside corner of the Base Plate (#3).
For all four (4) corners of the Caster (#1) insert one Hex Screw (#23) through
Washer (#16) down into Base Plate (#3) and through Caster (#1). Thread on Nut
(#19). Repeat for the remaining three (3) Casters (#1).
Step 2) Attach the first Collector Support (#14) to the Base Plate (#3). Line up the
Collector Support (#14) with holes on edge of the Base Plate (#3). Insert Hex
Screw (#6) down through Washer (#4), Base Plate (#3) and secure in place with Nut
(#2)-seeFigure 1 on the following page.
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Figure 2
Figure 1
Collector
Support (#14)
Motor
(#8)
Collector Support (#14)
Hex Screw (#6)
Base Plate
(#3)
Hex Screw
(#6)
Motor Base
(#5)
Step 3) Attach the second Collector Support (#14) through the inside holes near
where the Motor Base (#5) will be mounted-see Figure 2. Insert Hex Screw (#6)
down throughWasher (#4) and Base Plate (#3) and secure in place with Nut (#2)-
see Figure 2.
Step 4) The Fan Housing (#38) is attached to the Motor (#8) and Motor Base (#5)
as a single unit. Secure the Motor Base (#5) to the Base Plate (#3) using six (6)
Hex Screws (#6), six (6) Washers (#4) and six Nuts (#2)-see Figure 2 and 3.
Figure 3
Fan Housing (#38)
Motor (#8)
Hex Screw (#6)
Motor Base (#5)
Base Plate (#3)
Step 5) Set the Packing (#29) on top of the rectangular opening on the Fan Hous-
ing (#38) (see Step 4). Set the Outlet (#30) on top of the Fan Housing (#38) and
Packing (#29)-see Figure 4. Slide Washer (#16) onto Hex Screws (#15) and thread
into the six (6) holes in the lip of Outlet (#30), Fan Housing (#38) and Packing (#29).
Secure in place with Nuts (#2)-see Figure 4.
SKU 45378
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Hose (#32)
Hose Clamp (#31)
Figure 4
Outlet (#30)
Packing (#29)
Hex Screws (#15)
withWasher (#16).
Fan Housing (#38)
Secure with Nuts (#2)
Step 6) Connect the Upper Bag Support (#13) to the Collector Support (#14) and
Collector (#33). Thread in both Hex Screws (#6) through the Collector Support
(#14) and through the Upper Bag Support (#13) and into the Collector (#33)-see
Figure 5.
Figure 5
Upper Bag Support
(#13)
Collector (#33)
Hex Screws (#6)
Collector Support (#14)
Step 7) Slide the Hose Clamp (#31) onto the Hose (#32). Slide Hose (#32) with
Hose Clamp (#31) onto the Outlet (#30). Once the Hose (#32) is in place, tighten
the screw on the Hose Clamp (#31) until the Hose (#32) is securely fastened to the
Outlet (#30)-see Figure 4.
Step 8) Slide the Hose Clamp (#31) onto the other end of the Hose (#32). Slide
the top opening of the Hose (#32) over the duct in the Collector (#33). Tighten the
screw on the Hose Clamp (#31) until the Hose (#32) is securely fastened.
Step 9) Place the Filter Bag (#35) on top of the Collector (#33). Once the Filter
Bag is in place, adjust the clamp so that the clip rests between the teeth. Press
the clamp down to lock in place. Extend the bag so that the loop on the top hangs
on the Upper Bag Support (#13).
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Step 10) Place the Collection Bag (#36) on the bottom of the Collector (#33) and
secure it with a clamp as in step 9.
Step 11) Attach the Handle (#37) to the Collector (#33) with Nut and Bolt (#39)-see
Figure 6.
Figure 6
Handle (#37)
Nut and Bolt (#39)
Operation
This unit is designed for use with an existing dust system, or you can construct a
new system.
1. If constructing a new system, connect 4” vent pipe (not included) to the
4” Inlet (#24) Determine the size of the dust ports on your tools and run vacuum
hoses (not included) from each tool to an appropriate sized adapter (not included),
and into the 4” vent pipe (not included).
Warning! Do not tamper with or remove the grounding pole on the plug. You
must use this unit with a 3 pole receptacle. If you use an extension cord, it must
meet amperage specified (16 AWG), and the cord must be 3 pronged.
2. Make sure the Collection Bag (#36) is on tight and not leaking. Switch on the
unit using the toggle Switch (#9).
3. During operation, periodically check how full the Collection Bag (#36) is. Do
not let it fill more than 3/4 full. A completely full bag puts a lot of stress on the bag
and the belt.
4. To change Collection Bag (#36), wear ANSI approved impact safety goggles,
and a dust mask. Remove the Belt (#34) and empty the bag. Replace the
Belt (#34) .
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Parts List
Part No.Description
Part No.
20
21
Description
1
Caster, 3” lockable
Washer, M10
Hex Screw, M10-1.5x16
Turbo Fan
2
3
Nut, M8-1.25
Base Plate
22
4
5
Washer, M8
Motor Base
23
24
Hex Screw, M6-1.0x10
Inlet
6
7
8
9
Hex Screw, M8-1.25x16
Power Cord
Motor, 110V, 60Hz, 2HP
Switch
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Inlet Cover
Hex Screw, M6-1.0x20 LH
Washer
Hex Screw, M8-1.25x8
Packing
Outlet
Hose Clamp
Hose
Collector
Belts
Filter Bag
Collection Bag
Handle
Fan Housing
Bolts & Nuts for Handle
HexWrench
10
11
12
13
14
15
16
17
18
19
Screw
HexWrench, 4mm
HexWrench, 5mm
Upper Bag Support
Collector Support
Hex Screw, M6-1.0x20mm
Washer, M6
Key
Packing
Nut, M6-1.0
Maintenance
1. Check the integrity of the 3 prong plug and cord. Make sure the grounding pole
is not bent and the cord isn’t torn or frayed.
2. Check your Collection Bags (#36) prior to each use for tears or fraying.
Replace if necessary.
3. Periodically tighten the Belts (#34) and Hose Clamps (#31).
4. Keep the Motor (#8) clean of dirt and debris.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE
BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR
THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT,
THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THat ALL REPAIRS
AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LI-
CENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT
OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLA-
TION OF REPLACEMENT PARTS THERETO.
NOTE: Some parts are listed and shown for illustration purposes only and are not
available individually as replacement parts.
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SKU 45378
Page 8
Assembly Drawing
37
#39
Bolt and Nut
for Handle
#2 (hidden
from view)
38
6
39
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REV 05/03
SKU 45378
Page 9
LIMITED 1 YEAR / 90 DAY WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and
durability standards, and warrants to the original purchaser that for a period of ninety days from date of
purchase that the engine/motor, the belts (if so equipped), and the blades (if so equipped) are free of
defects in materials and workmanship. Harbor Freight Tools also warrants to the original purchaser, for
a period of one year from date of purchase, that all other parts and components of the product are free
from defects in materials and workmanship (90 days if used by a professional contractor or if used as
rental equipment). This warranty does not apply to damage due directly or indirectly, to misuse, abuse,
negligence or accidents, repairs or alterations outside our facilities, normal wear and tear, or to lack of
maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental,
contingent, special or consequential damages arising from the use of our product. Some states do not
allow the exclusion or limitation of incidental or consequential damages, so the above limitation of exclu-
sion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transporta-
tion charges prepaid. Proof of purchase date and an explanation of the complaint must accompany
the merchandise. If our inspection verifies the defect, we will either repair or replace the product at our
election or we may elect to refund the purchase price if we cannot readily and quickly provide you with
a replacement. We will return repaired products at our expense, but if we determine there is no defect,
or that the defect resulted from causes not within the scope of our warranty, then you must bear the
cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from
state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
SKU 45378
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