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National Flooring Equipment, Inc. (National) warrants to the first consumer/purchaser that this National
brand product (the #3390 Shotblast), 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.

This warranty does not apply to any appearance items of the product, to the additional excluded items set
forth below, or to any product, the exterior of which has been damaged or defaced, which has been
subjected to misuse, abnormal service or handling, or which has been altered or modified in design or
construction.

In order to enforce the rights under this limited warranty, the purchaser should follow the steps set forth
below and provide proof of purchase to National.

The limited warranty described herein is in addition to whatever implied warranties may be granted to
purchasers by law. ALL IMPLIED WARRANTIES INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR USE ARE LIMITED TO THE PERIODS FROM THE DATE OF
PURCHASE AS SET FORTH BELOW. Some states do not allow time limitations on an implied warranty,
so the above limitation may not apply to you.

Neither the sales person of the seller, nor any other person, is authorized to make any other warranties
other than those described herein, or to extend the duration of any warranties beyond the time period
described herein on behalf of National.

The warranties described herein 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 described herein, shall constitute complete fulfillment of all liabilities and
responsibilities of National to the purchaser with respect to the product and shall constitute full
satisfaction of all claims, whether  based on contract, negligence, strict liability or otherwise. In no event
shall National be liable, or in any way responsible for any damage or defects in the product which were
caused by repairs or attempted repairs performed by anyone other than National. Nor shall National be
liable, or in any way responsible, for any incidental or consequential, economics or property damage.
Some states do not allow the exclusion of incidental or consequential damages, so the above exclusion
may not apply to you.

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS. YOU MAY ALSO HAVE OTHER RIGHTS
WHICH VARY FROM STATE TO STATE.

WARRANTY PERIOD

The #3390 Shotblast is guaranteed to be free of manufacturer defective workmanship and in  quality of
materials for a period 90 days. 

Items excluded from warranty coverage, unless found and reported defective immediately upon removal
from the original shipping container and before being used by the original purchaser.

A freight damage claim must be filed with the carrier by the purchaser, the shipper cannot file the freight
claim.

To obtain service contact National Flooring Equipment, Inc. toll free at 800-245-0267 for a repair
authorization number. COD freight returns will not be accepted. Freight collect shipments will not be
accepted. Warranty repairs must be accompanied by date of purchase receipt and a return/repair
authorization number.

GUARANTEE

Summary of Contents for 3390

Page 1: ...nual Before Operating Machine 9250 XYLON AVENUE NORTH MINNEAPOLIS MN 55445 U S A 800 245 0267 763 535 8206 FAX 763 535 8255 FAX 800 648 7124 WEB SITE www nationalequipment com E MAIL info nationalequi...

Page 2: ...7 A Characteristics of a Defensive Driver 5 B SAFETY SITE ASSESSMENT 5 C Grounding 6 D Extension Cords 7 Safety Instructions 8 General Information 9 Features Specifications 10 General Operation 11 15...

Page 3: ...ng 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...

Page 4: ...PMENT When it is not in use unplug tool before changing blades accessories or performing recommended maintenance or when not in use 23 MAINTAIN EQUIPMENT CAREFULLY Keep handles dry clean and free from...

Page 5: ...ent verify the following 1 Work area is clean dry free of debris and machine will clear all obstructions NEVER BLAST A WET FLOOR AND NEVER ALLOW PERSONNEL ELECTRICAL CORDS OR CONNECTIONS TO COME INTO...

Page 6: ...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...

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: ...e to equipment or bodily injury Read and understand operators instruction manual and before operating this equipment WARNING Failure to follow any of the above instructions could cause damage to machi...

Page 9: ...ORAGE Prevent rust during storage Store machine upright in a cool dry well ventilated area MAINTENANCE CHECKS According to the conditions and frequency of use scarifiers have to be checked for safe op...

Page 10: ...step Shot sizes range from S 170 to S 390 which can be used in a wide range of applications including small floor areas tight spaces balconies garage floors basements and pool decks Wear parts are int...

Page 11: ...rete dust is sucked into a duct hose which travels from the blast housing to the dust collector After traveling through the duct hose the concrete dust deposited into the dust collector s dust bin SAF...

Page 12: ...leave stray shot in work area as shot is a slip and fall hazard Stepping and falling on steel shot can result in serious injury A well maintained machine is a productive machine If not properly maint...

Page 13: ...ardwiring or circuit breaker changes should be performed by a licensed electrician 9 Before loading shot into machine turn the switch on the 3390 and the dust collector to the ON position for two minu...

Page 14: ...the steel shot used will impact where the hot spot appears in the blast pattern The operator will need to adjust the control cage based upon the size of steel shot utilized WEAR PARTS The 3390 contain...

Page 15: ...sembly to housing Remove control cage assembly Remove arbor nut and blast wheel Check wheel hub for wear replace as necessary Install new blast wheel and arbor nut Attach the control cage assembly pre...

Page 16: ...ge immediately and verify there is adequate clearance between the blast wheel and the control cage 4 3390 is creating excessive wear on liners and blast housing a Adjust control cage so that hot spot...

Page 17: ...ase the travel speed of the 3390 to reduce amount of concrete being removed c If b does not produce an adequate profile make additional passes over the floor surface 9 3390 or dust collector is emitti...

Page 18: ...any products previously manufactured before this manual It is the customer s responsibility to complete the warranty card and mail it to the seller within 10 days from date of purchase If a failure o...

Page 19: ...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 described...

Page 20: ...ck One Repair Do you wish to be contacted before repairing Yes No Return Contact National if a loaner is needed Return Authorization Number Date Customer Number Purchased From required contact Nationa...

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