National 3402 Instruction Manual

HEAVY-DUTY DUST COLLECTOR

INSTRUCTION MANUAL

Rev A

Caution: Read Manual Before Operating Machine

043014

Table of Contents

Table of Contents .............................................................................................................................................................3

Features and Specifi cations ...................................................................................................................... ...................... 4

Safety ..............................................................................................................................................................................5-9

General Rules for Safe Operation .........................................................................................................................5-6

Grounding .................................................................................................................................................................7

Guidelines for Using Extension Cords ......................................................................................................................8

General Safety .......................................................................................................................................................8-9

Machine Operation .........................................................................................................................................................10

Start-Up ..................................................................................................................................................................10

Machine Maintenance ...............................................................................................................................................11-14

Standard Filter Inspection ........................................................................................................................................11

Standard Filter Removal ..........................................................................................................................................11

Standard Filter Installation ......................................................................................................................................12

HEPA Filter Replacement Procedure ......................................................................................................................13

Motor Brushes Inspection .......................................................................................................................................14

Troubleshooting Guide ..................................................................................................................................................15

Parts List and Diagrams ...........................................................................................................................................16-25

WNS 1000 Motor Deck ...........................................................................................................................................16

WNS 2220 Motor Assembly ....................................................................................................................................17

WNS 1000 Switch Assembly .................................................................................................................................. 18

WNS 2220 Switch Assembly .................................................................................................................................. 19

Filter Assemblies ...............................................................................................................................................20-21

Hepa Filter Assembly ..............................................................................................................................................22

WNS Series Base ...................................................................................................................................................23

Dust Pan Lever Assembly ......................................................................................................................................24

50mm, 70mm & 100mm Inlet Assembly .................................................................................................................25

Guarantee ........................................................................................................................................................................27

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Features and Specifi cations

Two 3.2 HP Motors

2” Inlet

Steel Handle

Hand Lever Filter Shaker

Foot Lever

Heavy-Duty Locking Casters

FEATURES

Two 3.2 HP Motors - two 3.2 HP motors provides high cfm for fast
pick-up of airbone particles.

2” Inlet - 2” inlet attaches 25’ crushproof vacuum hose.
Heavy-Duty Locking Casters - allows maneuverability on any sur-

face, with self locking casters.

Product Specifi cations

Volt.

110 7.1 200 13 99.99% 78

Vac Pres-

sure/Hg

Max Airfl ow

(cfm)

Filter Area

(ft2)

Filter

Effi ciency

%@0.3

microns

9 Gallon Dust Pan

Steel Handle - easy mobility on congested jobsites.
Hand Lever Filter Shaker - unclogs fi lter & helps preserve fi lter life.
Foot Lever - provides dust free, easy emptying.
Dust Pan - 50 lb (9 gallon) “one-step” dustpan removal for fast and

effi cient clean-out.

Sound

Level (dBA)

Length Width Height Weight

34”

(86.4 cm)

19.5”

(49.5 cm)

44”

(111.76 cm)

99 lb

(44.9 kg)

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Safety

GENERAL RULES FOR SAFE OPERATION

READ AND SAVE ALL INSTRUCTIONS FOR FUTURE USE: Before use, be sure everyone operating this equipment reads and

understands this manual as well as any labels packaged with or attached to the tool.

1. KNOW YOUR EQUIPMENT: Read this manual carefully to learn equipment applications and limitations as well as potential hazards
associated with this type of equipment.

2. GROUND YOUR TOOL: See Grounding (See Page 7).

3. A VOID DANGEROUS ENVIRONMENTS: Do not use in rain, damp or wet locations, or in the presence of explosive atmospheres

(gaseous fumes, dust or fl ammable materials). Remove materials or debris that may be ignited by sparks.

4. KEEP WORK AREA CLEAN AND WELL LIT: Cluttered, dark work areas invite accidents.

5. DO NOT USE ON STEPS.

6. DRESS PROPERLY: Do not wear loose clothing.

7. USE SAFETY EQUIPMENT: Everyone in the work area should wear safety goggles or glasses complying with current safety stan-

dards. Wear hearing protection during extended use and a dust mask for dusty operations.

8. KEEP BYSTANDERS AWAY: Children and bystanders should be kept at a safe distance from the work area to avoid distracting the
operator and contacting the tool or extension cord. Operator should be aware of who is around them and their proximity.

9. PROTECT OTHERS IN THE WORK AREA: Provide 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 prop-

erly installed and maintained.

11. CHECK FOR DAMAGED PARTS: Inspect guards and other parts before use. Check for misalignment, binding of moving parts,
improper mounting, broken parts and any other conditions that may affect operation. If abnormal noise or vibration occurs, turn the tool
off immediately and have the problem corrected before further use. Do not use damaged equipment. Tag damaged tools “DO NOT USE”
until repaired. A guard or other damaged parts should be properly repaired or replaced. For all repairs, insist on only identical National
replacement parts.

12. REMOVE ALL ADJUSTING KEYS AND WRENCHES: Make a habit of checking that the adjusting keys, wrenches, etc. are
removed from the tool before turning it on.

13. GUARD AGAINST ELECTRIC SHOCK: Prevent body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators. Before use always check the work area for hidden wires or pipes. Use a Ground Fault Circuit Interrupter (GFCI) to reduce
shock hazards.

14. AVOID ACCIDENTAL STARTING: Be sure equipment is turned off before plugging it in. Do not use a tool if the power switch does
not turn the tool on and off.

15. DO NOT ABUSE CORD: Never unplug by pulling the cord from the outlet. Pull plug rather than cord to reduce the risk of damage.
Keep the cord away from heat, oil, sharp objects, cutting edges and moving parts.

16. STAY ALERT: Watch what you are doing, and use common sense. Do not use when you are tired, distracted or under the infl uence of
drugs, alcohol or any medication causing decreased control.

17. STARTING MACHINE: On/off switch must be in off position before connecting to power source.

18. DO NOT DEFEAT OR ALTER A SWITCH OR SAFETY DEVICE

19. UNPLUG EQUIPMENT: When it is not in use, unplug tool before changing accessories or performing recommended maintenance.

20. MAINTAIN EQUIPMENT CAREFULLY: Keep handles dry, clean and free from oil and grease. Periodically inspect tool cords and

extension cords for damage. Have damaged parts repaired or replaced.

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Safety

21. STORE IDLE EQUIPMENT: When not in use, store in a dry, secured place. Keep away from children.

22. MAINTAIN LABELS AND NAMEPLATES: These carry important information. If unreadable or missing, contact National for a

free replacement.

23. DO NOT DROP: Take caution when moving or transporting.

WARNING: EXPOSURE TO DUST MAY CAUSE RESPIRATORY AILMENTS. USE APPROVED NIOSH OR OSHA RESPIRATOR, SAFETY

GLASSES OR FACE SHIELDS, GLOVES AND PROTECTIVE CLOTHING. PROVIDE ADEQUATE VENTILATION TO ELIMINATE DUST, OR TO
MAINTAIN DUST LEVEL BELOW THE THRESHOLD LIMIT VALUE FOR NUISANCE DUST AS CLASSIFIED BY OSHA.

WARNING: ALWAYS WEAR RESPIRATOR PROTECTION, APPROPRIATE FOR THE APPLICATION, AS SPECIFIED BY OSHA REGULA­TIONS AND YOUR EMPLOYER. NEVER OPERATE OR MAINTAIN EQUIPMENT BEFORE READING AND UNDERSTANDING THE INSTRUC­TIONS FOR OPERATION AND MAINTENANCE. OBEY ALL SAFETY SIGNS AND INSTRUCTIONS WHILE OPERATING OR MAINTAINING
EQUIPMENT.

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WARNING: IMPROPERLY CONNECTING THE GROUNDING WIRE CAN
RESULT IN THE RISK OF ELECTRIC SHOCK. CHECK WITH A QUALIFIED ELEC­TRICIAN IF YOU ARE IN DOUBT AS TO WHETHER THE OUTLET IS PROPERLY
GROUNDED. DO NOT MODIFY THE PLUG PROVIDED WITH THE TOOL. NEVER
REMOVE THE GROUNDING PRONG FROM THE PLUG. DO NOT USE THE
TOOL IF THE CORD OR PLUG IS DAMAGED. IF THE PLUG WILL NOT FIT THE
OUTLET, HAVE A PROPER OUTLET INSTALLED BY A QUALIFIED ELECTRICIAN.

Safety

WARNING: ELECTRICAL CORDS CAN BE HAZARDOUS. MISUSE CAN

RESULT IN FIRE OR DEATH BY ELECTRICAL SHOCK. READ CAREFULLY AND
FOLLOW ALL DIRECTIONS.

WARNING: RECOMMENDED USE OF GFI RECEPTACLE.

GROUNDING

Tools marked “Grounding Required” have a three wire cord and three prong grounding
plug. The plug must be connected to a properly grounded outlet (See Figure A). If the tool
should electrically malfunction or break down, grounding provides a low resistance path
to carry electricity away from the user, reducing the risk of electric shock.

The grounding prong in the plug is connected through the green wire inside the cord to
the grounding system in the tool. The green wire in the cord must be the only wire con­nected to the tool’s grounding system and must never be attached to an electrically “live”
terminal.

Your tool must be plugged into an appropriate outlet, properly installed and grounded in
accordance with all codes and ordinances. The plug and outlet should look like those in
Figure A.

FIG. A

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Safety

WARNING: ELECTRICAL CORDS CAN BE HAZARDOUS. MISUSE CAN RESULT IN FIRE OR DEATH BY ELECTRICAL SHOCK. READ

CAREFULLY AND FOLLOW ALL DIRECTIONS.

EXTENSION CORDS

Grounded tools require a three wire extension cord. Double insulated tools can use either a two or three wire extension cord. As the distance
from the supply outlet increases, you must use a heavier gauge extension cord. Using extension cords with inadequately sized wire causes a
serious drop in voltage, resulting in loss of power and possible tool damage.

The smaller the gauge number of the wire, the greater the capacity of the cord. For example, a 14 gauge cord can carry a higher current than
a 16 gauge cord. When using more than one extension cord to make up the total length, be sure each cord contains at least the minimum
wire size required. If you are using one extension cord for more than one tool, add the nameplate amperes and use the sum to determine the
required minimum wire size.

GUIDELINES FOR USING EXTENSION CORDS

• If you are using an extension cord outdoors, make sure it is marked with the suffi x “W-A” (“W” in Canada) to indicate that it is acceptable
for outdoor use.

• Be sure your extension cord is properly wired and in good electrical condition. Always replace a damaged extension cord or have it re­paired by a qualifi ed person before using it.

• Protect your extension cords from sharp objects, excessive heat and damp or wet areas.

• Keep away from water. Do not use if wet.

• Inspect thoroughly before each use. DO NOT USE IF DAMAGED.

• Make sure equipment is OFF before connecting cord outlet.

• FULLY INSERT plug into outlet.

• Do not remove, bend or modify any metal prongs or pins of cord.

• Do not use excessive force to make connections.

• Do not connect a three prong plug to a two-hole cord.

• Avoid overheating. Uncoil cord and do not cover it with any material.

• Do not walk on cord.

• Do not drive, drag or place objects over cord.

GENERAL SAFETY

1. Cables damaged through crushing or splitting can be dangerous if used and should be replaced immediately. Risk of personal injury.

2. Do not connect the machine to an unearthed socket. Risk of personal injury.

3. Make sure the assembly area is fi rm, so the dust extractor does not tip over. Risk of personal and material injury.

4. Risk of pinching when handling the toggle fastener.

5. Do not vacuum hot or smoldering particles, as the machine can catch fi re. If a fi re should break out, remove the plug from the socket and
extinguish the fi re using the available fi re-fi ghting equipment. An appropriate pre-separator should be connected between the suction pipe
and the dust extractor when sucking up soot, ash and hot materials.

6. The machine must not be used in environments where explosives may be present. Serious risk of explosion.

7. Do not look into the suction pipe or suction hose if 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 suction hose is not fi tted. Risk of personal injury.

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Safety

9. Do not suck up water without use of the water separator. The absolute fi lter can be damaged.

10. Check, when lifting the machine, that the dust container is empty and that no one else is standing under the lifted machine. Risk of per­sonal injury and material damage.

CAUTION: MACHINE IS DESIGNED FOR INTERMITTENT USE, I.E. NOT MORE THEN 2 HOURS CONTINUOUSLY.

CAUTION: DISCONNECT THE MACHINE FROM THE POWER SOURCE BEFORE AND DURING INSPECTION AND/OR MAINTENANCE.

CAUTION: A DUST MASK SHOULD BE WORN WHEN WORKING WITH USED FILTERS.

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