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MODEL 1-8DEZMKII Shot Blasting System WALK BEHIND MANUAL PUSH Trust the Original Surface Preparation Experts blastrac.com 800.256.3440...
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FORWARD Blastrac is pleased that you have selected this Blast Cleaning System for your surface preparation requirements. This environmentally safe, closed-cycle, surface preparation machine has been designed and built for abrasive blast cleaning of horizontal surfaces. This manual has been prepared to assist the operator and the maintenance personnel in understanding the machine so that it may be operated in the most efficient manner and maintained in the best condition.
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Receipt of Machine Examine the shipment carefully for possible damage that might have occurred while in transit. If any damage is noted, notify the transportation carrier immediately and advise Blastrac.
Operating Instructions 1-8DEZ Table of Contents Page Number Safety Precautions Safety Instructions Mechanical Ventilation Operator Responsibilities Operator Responsibilities Description and Function Blast Unit – General Blast Unit – Abrasive Cleaning Head Blast Unit – Abrasive Control Valve Blast Unit – Rebound Chamber (Plenum) Blast Unit –...
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Operating Instructions 1-8DEZ Table of Contents Blast Wheel Replacement Blast Wheel Replacement Troubleshooting 10.1 Troubleshooting 10.2 Ventilation System (4-54SP Dust Collector) 10.3 Vacuum Adjustment Specifications 11.1 Blast Unit Recommended Spare Parts 12.1 Recommended Spare Parts List Reference Drawings General Assembly 421-0001...
AND UNDERSTAND ALL OF THE OPERATING INSTRUCTIONS PRIOR TO OPERATING OR MAINTAINING ON THE 1-8DEZ. These Blastrac operating instructions have been specifically prepared for operating and maintenance personnel working with the Model 1-8DEZ shot-blasting system. The information in this manual is intended to provide an understanding of the 1-8DEZ to minimize safety risks and maximize 1-8DEZ performance.
Operating Instructions 1-8DEZ Safety Precautions 1.1 Cont’d Before actual shotblasting can begin, the operator should be certain that the 1-8DEZ will clear all obstructions in the work area. Work areas must be dry and clean (no loose debris) before cleaning can begin. WARNING: INTRODUCTION OF LOOSE DEBRIS MAY CAUSE A CATASTROPHIC FAILURE RESULTING IN SERIOUS INJURY.
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Sticky, tar related and rubber ® surfaces should be avoided when using the Blastrac 1-8DEZ. Always drain unused abrasive from the 1-8DEZ and empty the dust collector hopper before transporting the...
Operating Instructions 1-8DEZ Safety Precautions 1.3 Ventilation The 1-8DEZ will not operate correctly without a dust collector. The dust collector aids in the recovery of the abrasive and removes potentially hazardous dust from the air stream. If the machine is leaving shot on the ground or emitting dust, make sure your dust collector is operating correctly.
Blastrac equipment. 3. The owner/operator shall provide the necessary blasting media in accordance with the recommendations of a Blastrac technician so that the 1-8DEZ will operate at maximum efficiency. 4. The owner/operator shall perform all maintenance and basic repair functions as stated and described in this manual.
Operating Instructions 1-8DEZ Description and Function Section 3 Blast Unit – General Blast Unit – Abrasive Cleaning Head Blast Unit – Abrasive Control Valve Blast Unit – Rebound Chamber (Plenum) Blast Unit – Deflector Plate / Hopper Blast Unit – Abrasive Seals Blast Unit –...
Description and Function 3.1 Blast Unit – General ® The Blastrac equipment series described herein includes the 1-8DEZ Blast Unit. This model is used in conjunction with the Turbo Vacuum Dust Collector. Each combination comprises a horizontal surface preparation, closed cycle, shotblasting system. The blast unit directs high velocity, metallic abrasive toward the work surface.
Operating Instructions 1-8DEZ Description and Function 3.2 Cont’d The blast wheel is equipped with a cast in place impeller for easy maintenance. This impeller pre-accelerates the abrasive to the wheel blades in controlled portions. The impeller also acts as a timing device to ensure proper placement of abrasive on the blade face.
Operating Instructions 1-8DEZ Description and Function 3.5 Blast Unit – Deflector Plate / Hopper This section (3.5) refers to Figure Number 3 on page 15. Once the contaminated abrasive leaves the rebound plenum, it enters the separator and immediately encounters the deflector plate. The deflector plate slows the abrasive down even more before it enters a tray at the bottom of the deflector plate.
The 1-8DEZ is designed to operate with abrasive in sizes S-110 through S-330. The selection of proper abrasive is very important to the performance of the Blastrac shot cleaning system. Your Blastrac representative can help with the proper selection of abrasive for your particular application.
Operating Instructions 1-8DEZ Description and Function SPRING HOPPER LEVER CABLE ANCHOR ABRASIVE CONTROL VALVE CONTROL CABLE PIVOT FEED SPOUT CLOSED OPEN 90° CLOSED OPEN ABRASIVE CONTROL VALVE FIGURE #2...
Operating Instructions 1-8DEZ Description and Function AIR OUTLET VACUUM DEFLECTOR LID ASSEMBLY CLAMP HINGE VACUUM SLOT SCREEN STORAGE HOPPER REBOUND PLENUM ABRASIVE VALVE ANCHOR ABRASIVE VALVE ABRASIVE/ CONTAMINANTS IN AIR SEPARATOR 1-8DEZ FIGURE #3...
8. Check the area you are about to clean. Be sure that it is free of all debris that can clog or damage the 1-8DEZ. Be sure that the surface is moisture free. Blastrac machinery is designed to work on surfaces free from debris. 9. Make certain that the abrasive control valve is in the closed position. Remove the separator lid and check that the shot hopper is free of debris and abrasive.
Operating Instructions 1-8DEZ Start-Up, Operation, and Shut-Down Procedures 4.1 Cont’d should reach the bottom of the screen. Do not overfill. Replace the separator lid and secure clamps (see figure #3, page 15). 10. Check the magnetic seals on the bottom of the blast unit for metallic contaminants such as nuts, bolts, etc.
Operating Instructions 1-8DEZ Start-Up, Operation, and Shut-Down Procedures 4.2 Cont’d 3. The blast unit and the dust collector should be arranged so that the dust collector is centrally located. Blasting in straight lines will always give the best, most consistent results.
1. Wheel Rotation - The blast wheel must be rotating in the proper direction indicated ® on the housing that surrounds the blast wheel. Most Blastrac machines rotate in a clockwise direction when looking at the machine from the operator’s position.
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Operating Instructions 1-8DEZ Setting The Correct Blast Pattern 5.1 Cont’d 5. The initial setting of a machine rotating in a counter-clockwise direction should be between 8:30 and 10:30 as indicated in Figures B and C. The resultant-cleaning path will determine the final setting. These settings will vary with the abrasive size and the surface being cleaned.
Operating Instructions 1-8DEZ Edging Mode 6.1 Changing The Edging Mode Refer to Figure Number 5 The model 1-8DEZ is capable of cleaning surfaces within 1 / 2 inch of vertical obstructions. (This is along the side of the machine. The 1-8DEZ can be pushed as close as 1-1/2 inches from the front of the machine.) Performing the following steps sets up the edging mode: 1.
4. Exhaust Hose Length - 25 feet of 2” I.D. exhaust hose; longer or shorter sections of hose may affect abrasive consumption or abrasive cleaning. ® Contact your Blastrac representative before changing the exhaust hose length. 5. Dust Collector – Inspect Dust Collector at 15-minute intervals to see how quickly the dustbin is being filled.
Operating Instructions 1-8DEZ Blast Wheel Replacement 9.1 Blast Wheel Replacement WARNING: THE 1-8DEZ MUST BE PLACED IN THE MAINTENANCE MODE (SEE SECTION 1.2) PRIOR TO ATTEMPTING TO INSPECT, CHANGE, OR ADJUST THE BLAST WHEEL. 1. Loosen the two control cage clamps that secure the feed spout and control cage. 2.
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The assembly of the blast wheel and its associated parts are illustrated on Figure 1 ® page 13 in Section 3, Description and Function. Original Blastrac wheels are designed and dynamically balanced for use at high speeds. Use of any other blast wheel may...
Operating Instructions 1-8DEZ Mechanical Troubleshooting 10.1 Mechanical Troubleshooting WARNING: PLEASE REFER TO THE SPECIFIC SAFETY AND MAINTENANCE RECOMMENDATIONS THROUGHOUT THIS MANUAL AND THE MANUALS OF THE COMPONENTS BEING MAINTAINED BEFORE ATTEMPTING ANY MAINTENANCE. FAILURE TO ADHERE TO THESE RECOMMENDATIONS COULD RESULT IN EQUIPMENT DAMAGE, SERIOUS INJURY OR DEATH.
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Operating Instructions 1-8DEZ Mechanical Troubleshooting 10.1 Cont’d Trouble Possible Cause Remedy Increased cleaning time. a. Storage hopper. a. Check abrasive level. b. Contaminated b. Abrasive may contain abrasive. substantial percentage of fines and contaminants. Check ventilation. c. Abrasive feed and c.
10.3 Vacuum Adjustment – Operating Tips ® For normal concrete surfaces, Blastrac does not recommend using more than the 25 feet of exhaust hose supplied with the blast system. Adding additional hose can cause insufficient suction, which will allow unwanted dust and contaminants to accumulate in the abrasive, thereby causing premature wear to the blast wheel and liners.
Operating Instructions 1-8DEZ Recommended Spare Parts 12.1 Recommended Spare Parts List Part # Description 4923050-EU Wheel Kit 6908250-EU Liner/Left Hand Side 6908260-EU Liner/Right Hand Side 4973070-EU Liner/Top P000001 Abrasive Control Valve **9675770 Feed Spout **6849120 Feed Spout Seal *P002639 Arbor Nut *Items included in Wheel Kit.
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ITEM QTY. PART NUMBER Description REMARKS P002618-EU Blast housing 6962960 Steering Handle 6962970 Abrasive Control Handle 9763240 Control cage bracket P001087 Front Caster Assy 9700120 Control cage clamp P002647-EU Electrical control Box Mtg Plate 6811540 Side skirt retainer PA-10038 Handle Mount 4923050-EU Blast wheel kit P003128-EU...
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13201 North Santa Fe Avenue Oklahoma City, OK 73114 Ph: 800-256-3440 F: 405-478-8608 blastrac.com Product Warranty Standard Equipment Products: Blastrac warrants its Blastrac Standard Equipment Products against defects in quality of material and workmanship, under normal and proper use for a period of 1 Year from the date of delivery, as noted on the returned warranty registration card, or, in the case of Rental Fleet Machines, 180 Days from the date of assignment to Rental Fleet.
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Blastrac Returned Merchandise Authorization (RMA) Form. Blastrac will then send the RMA form to the customer authorizing the return of the parts for warranty evaluation. The parts must be received within sixty (60) days following the RMA origination date or the warranty claim will be denied.
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® the information recorded here by registering online at blastrac.com, or complete this page and fax to 866-485-1046, or if you prefer, detach and mail to: Blastrac, 13201 North Santa Fe Avenue, Oklahoma City, OK 73114-9901...
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