TABLE OF CONTENTS n Table of Contents ......................2 n Notice ..........................3 n Rules for Safe Operation ..................4-7 n Safety Warning ......................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...
Pay particular attention to the safety regulations. Read the complete instruction manual before using the 3474 HEPA Dust Collector. All spare parts use the the 3474 must be those specified by National Flooring Equipment, Inc. Page 3...
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.
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RULES FOR SAFE OPERATION 16. DO NOT ABUSE CORD: Never unplug by yanking 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. 17.
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RULES FOR SAFE OPERATION GROUNDING 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.
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RULES FOR SAFE OPERATION EXTENSION CORDS WARNING: Electrical cords can be hazardous. Misuse can result in fire or death by electrical shock. Read carefully and follow all directions. Grounded tools require a three wire extension cord. Double insulated tools can use either a two or three wire extension cord.
SAFETY WARNINGS HANDLING 1. Cables damaged through crushing or splitting can be dangerous if used and should be replaced immediately. Risk of person injury. 2. Do not connect the machine to an unearthed socket. Risk of personal injury. 3. Make sure the assembly area is firm, so the dust extractor does not tip over. Risk of personal and material injury.
PROCEDURES 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.
PROCEDURES FILTER CHANGE Warning: risk of dust dispersion - use personal safety equipment Unhealthy dust can be spread during filter change. Accordingly, the user should wear protectiveglasses, protective gloves, and a breathing mask conforming to protection class FFP3 Switch off the machine and pull the plug out of the socket. PREFILTER (LARGE) Stock # 3474-20090050 1.
MAINTENANCE WARNING: To reduce the risk of injury, always unplug equipment from power source before performing any maintenance. Never disassemble the tool or try to do any rewiring on the tool’s electrical system. Failure to do so could cause damage to machine or serious injury. Contact National for ALL repairs.
MAINTENANCE SERVICE When cleaning and servicing the machine, you must switch off the machine and remove the plug from the socket. • Avoid cleaning with a high pressure cleaner. If necessary, do not direct at the opening on the machine, especially the opening for cooling air. •...
TROUBLESHOOTING The machine is designed and manufactured for a sever environment and tasks, but the user must note that the machine must be protected from knocks and blows. Filter, seals, attachments, and connections are carefully adapted and selected with regard to the operators work environment.
PART NUMBERS & DIAGRAMS INTERNAL PARTS Position Part # Description Position Part # Description 201000143 TOP COVER ASSEMBLY 200800153 CLIP HOLDER KIT 201000118 CLEANING UNIT KIT 201000144 HOSE KIT (2) 200900050 MAIN FILTER 201100137 HOSE CLAMP PLASTIC (2) 201000129A TANK COMPLETE 201100125 HOSE END (2) 200600799...
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PART NUMBERS & DIAGRAMS 115V ENGINE PACKAGE Position Part # Description Position Part # Description 201100128 KUNRLED THUMB NUT (4) 201100149 CORD SET, 115V 201000121 FILTER COVER KIT (2) 201100150 CABLE FIX 200700070A HEPA FILTER (2) 200600805 ENGINE COVER, KIT 201100127 SEALING PACKING(2) 201000133...
National Flooring Equipment, Inc. (National) warrants to the first consumer/purchaser that this National brand product (the 3474 HEPA Dust Collector), when shipped in its original container, will be free from defective workmanship and materials and agrees that it will, at its option, either repair the defect or replace the defective product or part thereof at no charge to the purchaser for parts or labor for the period(s) set forth below.
RETURN SHEET Company Name Contact Name Telephone Number Approximate Usage (hours) Problems Encountered Check One: q Repair Do you wish to be contacted before repairing q Return Contact National if a loaner is needed Return Authorization Number Date REQUIRED, contact National Customer Number if known Purchased From...