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UNPACKING

When unpacking the machine, please check that the following accessories are included:

• The hose with end fittings

• Handle

• Floor nozzle

• Extra bags

If any of the above mentioned parts are missing, please contact your distributor or our sales
representative.  Assemble the front wheels using the using bolt, washer and nut that are
included in the package.

FUNCTION

The machine is designed for sucking and separating dry, non-combustible dust with an
explosion limit value of >0.1mg/m3

The motor is started by the switch.  Dust-laden air is then sucked through the inlet valve at high
speed via the suction hose.  The air is slowed down by the cyclone and coarse dust particles
are separated out, partly by centrifugal force and partly be gravity.  Air and finer particles then
pass through the main filter where separation is made.  The machine is designed for filter
cleaning by reverse air pulse.  
The separated dust accumulates in the cyclone until the machine is switched off, when it drops
through the bottom flap into the plastic bag.

USE

Before use, the user must be trained in handling the machine and the hazardous dust.  Connect
theelectric plug to an outlet with the correct voltage (see designation plate).  The filter must be
cleaned fromtime to time (see page 10).  This must be done before changing the plastic bag
and can also be done when the work is complete or when there is poor suction.

REPLACING CANISTER BAG

IMPORTANT NOTE: Only original canister bags purchased from National may be used (see page
15)!  Failure to follow these instructions will result in damage to
HEPA filter and/or machine!

W

ARNING

!

CANISTER BAG MUST BE USED AT ALL TIMES

.

W

ARNING

!

O

NLY USE ORIGINAL PARTS

(

SEE PAGE

15).

1. Shut off vac.

2. Canister bag may only be replaced after cleaning the filter. 

3. Unlatch clamps on each side of canister (Fig. A).

4. Remove canister from dust collector to access canister dust

collection bag. 

5. Carefully lift debris filled bag from canister, securely close, and

properly dispose of.

6. Ensure residual debris has not fallen into canister.  If so, clean canister throughly! Failure to

do so will result in debris contaminating the HEPA filtration system.

7. After ensuring canister is free of debris, insert new dust collection bag and securely relatch

canister properly into place.

Page 9

PROCEDURES

Fig. A

Clamps, one
on each side

Dust

Canister

Summary of Contents for 3474 HEPA

Page 1: ...5445 U S A PH 800 245 0267 PH 763 315 5300 FAX 800 648 7124 FAX 763 535 8255 WEB SITE www nationalequipment com E MAIL info nationalequipment com 3474 HEPA DUST COLLECTOR INSTRUCTION MANUAL 115 Volt R...

Page 2: ...g 8 n Procedure 9 10 Unpacking 9 Function 9 Use 9 Replacing Canister Bag 9 Filter Change 10 Purge Vac 10 n Maintenance 11 12 Maintaining Equipment 11 Cleaning 11 Repairs 11 Service 12 n Troubleshootin...

Page 3: ...electrical machines such as drills etc National will not be held responsible if the dust collector is used for other applications or been used in ways other than those outlined in this instruction man...

Page 4: ...barriers or shields as needed to protect others from debris 10 USE PROPER ACCESSORIES Using accessories that are not recommended may be hazardous Be sure accessories are properly installed and mainta...

Page 5: ...l cords and extension cords for damage Have damaged parts repaired or replaced 22 STORE IDLE EQUIPMENT When not in use store in a dry secured place Keep away from children 23 MAINTAIN LABELS AND NAMEP...

Page 6: ...e connected to a permanent ground such as a properly grounded outlet box or receptacle Simply remove the center screw from the outlet insert the adapter and reattach the screw through the green ground...

Page 7: ...you are using an extension cord outdoors make sure it is marked with the suffix W A W in Canada to indicate that it is acceptable for outdoor use Be sure your extension cord is properly wired and in g...

Page 8: ...blocked Serious risk of eye injury 8 Do not direct the suction hose towards body parts when the machine is running Avoid placing your hand or other parts of the body against the suction inlet if the...

Page 9: ...ained in handling the machine and the hazardous dust Connect theelectric plug to an outlet with the correct voltage see designation plate The filter must be cleaned fromtime to time see page 10 This m...

Page 10: ...clean plastic bag NOTE THIS BAG MUST BE PROPERLY DISPOSED OF 3 Insert a new filter in reverse order 4 Check the seal when changing filters and changing defective seals PURGE VAC To maximize airflow o...

Page 11: ...or grease Use only mild soap and a damp cloth to clean since certain cleaning agents and solvents are harmful to plastics and other insulated parts Some of these include gasoline turpentine lacquer th...

Page 12: ...st be regarded as contaminated and be treated thereafter If possible use a special suitable room Proper personnel protective equipment must be used All parts which are contaminated after service must...

Page 13: ...2 Filter blocked 3 Top cover loose 4 Sealing defective 1 Change hose 2 a Purge Vac b Change Filter 3 Adjust 4 Change current seal Dust blows from motor 1 Filter loose or defective 1 Adjust or change...

Page 14: ...out opening vacuum 10 Rear Tires smooth easy transport over power cords and other floor obstructions Bottom Mounted Vacuum Motor commercial grade motor providing high cfm and waterlift for fast pick u...

Page 15: ...BELT PACKING 8 201100141 ANTI SKID 11 200800152 FRONT WHEEL KIT 2 12 200800151 REAR WHEEL KIT 2 Page 15 PART NUMBERS DIAGRAMS 20 21 INTERNAL PARTS Position Part Description 14 200800153 CLIP HOLDER KI...

Page 16: ...ENGINE TUBE W NIPPLE 115V 201100152A ENGINE TUBE W O NIPPLE 115V 6 201000135 CHASSIS KIT 7 201100151 SWITCH PACKING 8 200700413 MANOMETER KIT Position Part Description 9 201100149 CORD SET 115V 10 201...

Page 17: ...000061 HOSE 25 ft dust collector hose 1276010 REPLACEMENT PLASTIC BAGS 25 PK 200700070A HEPA FILTER Replacement HEPA Filter 1224035 2 PIECE WAND SET 1 Bent Piece 1 Straight 1326087 FLOOR TOOL 2 in x 1...

Page 18: ...in shall be the sole and exclusive warranties granted by National and shall be the sole and exclusive remedy available to the purchaser Correction of defects in the manner and for the period of time d...

Page 19: ...ne q Repair Do you wish to be contacted before repairing q Yes q No q Return Contact National if a loaner is needed Return Authorization Number Date Customer Number Purchased From REQUIRED contact Nat...

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