Blastrac 1-8DEZ Operating Manual
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Blastrac 1-8DEZ Operating Manual

Walk behind shot blaster
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SECTION 2
Replacement
Shot Blasting
Shot Blasting
1
2
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11
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MODEL 1-8DEZ BLASTER
OPERATING MANUAL
MODEL
1-8DEZ
Walk Behind
Shot Blaster
JUNE 2007
1

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Questions and answers

Terry Norgal
February 25, 2025

my blastrac 8dec 230v is leaving excess shot on surface

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2 comments:
Terry Norgal
February 25, 2025

@Terry Norgal

0
Mr. Anderson
February 25, 2025

Your Blastrac 8DEC 230V may be leaving excess shot on the surface due to insufficient suction. This can happen if you have added more than the recommended 25 feet of exhaust hose, which reduces suction and allows dust and contaminants to mix with the abrasive. Additionally, if the vacuum adjustment gate is not set correctly, too little suction may prevent proper abrasive recovery. Try adjusting the vacuum gate and ensuring the hose length does not exceed the recommended limit. If using small abrasives like S-170 or S-230, fine-tuning the suction may require some trial and error.

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Summary of Contents for Blastrac 1-8DEZ

  • Page 1: Table Of Contents

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 2 Introduction SAFETY PRECAUTIONS JUNE 2007 Safety Precautions Operator Responsibilities 3 MODEL Description & Functions 1-8DEZ Walk Behind Start-Up Procedures Shot Blaster Setting the Correct Blast Pattern Edging Mode Equipment Calibration Wear Parts Blast Wheel...
  • Page 2 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 1 INTRODUCTION JUNE 2007 CONTENTS – SECTION 1 Introduction Warranty Policy Shot Blasting...

  • Page 3: Introduction

    INTRODUCTION JUNE 2007 1.1 INTRODUCTION 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.
  • Page 4 ® procedures for BLASTRAC products. It is to be used in determining whether a warranty is justified and also as a procedural guide in completing a BLASTRAC Warranty Claim form. Warranty Responsibility: The distributor or the end user must prepare a Machine Warranty Information Card when the machine is delivered.
  • Page 5 JUNE 2007 The obligation under this warranty is strictly limited to the replacement or repair, at Blastrac’s option, of machines and does not include the cost of transportation, loss of operating time, or normal maintenance services. This warranty does not apply to failure occurring as a result of abuse, misuse,...
  • Page 6 JUNE 2007 SPECIAL CONSEQUENTIAL DAMAGES CHARACTER, INCLUDING WITHOUT LIMITATIONS, DAMAGES FOR ANY LOSS OF GOODWILL, WORK STOPPAGE, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES. BLASTRAC MAKES NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, LIMITED IMPLIED WARRANTIES MERCHANTABILITY FITNESS...
  • Page 7 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 2 SAFETY PRECAUTIONS JUNE 2007 CONTENTS – SECTION 2 Warnings and Symbols General Safety Instructions Mechanical Safety Instructions Ventilation Safety Instructions Shot Blasting...
  • Page 8 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 2 SAFETY PRECAUTIONS JUNE 2007 2.1 WARNINGS AND SYMBOLS The following denominations and symbols are used in the Operating Instructions to highlight areas of particular importance: Symbol of operational safety. In these Operating Instructions this symbol will be...
  • Page 9 All operating and maintenance personnel must observe all warnings and precautions that are listed in this manual for the Model 1-8DEZ. All safety and warning labels posted on the 1-8DEZ and the instructions included in these operating instructions must be followed.
  • Page 10 Before actual shot-blasting 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: Loose debris may cause a catastrophic failure of the blast wheel resulting in serious injury.
  • Page 11 All abrasive leaks should be stopped immediately to help keep the work area free of spilled abrasive. Any condition(s) that may result in damage to the 1-8DEZ or cause injury to the operator and/or other personnel should be repaired immediately. Shot Blasting...

  • Page 12: Safety Precautions

    See drawing number 421-0013 for sticker descriptions and locations. Do not operate the 1-8DEZ in the rain or when heavy moisture is present. Do not expose the abrasive supply to any type of moisture. Removal of sticky and/or rubber surfaces should be avoided when using the Blastrac®...

  • Page 13: Safety Precautions

    SAFETY PRECAUTIONS JUNE 2007 Be sure to obtain any MSDS that may pertain to the specific use of the 1-8DEZ. Always be aware that the dust generated may require the operator to wear the appropriate breathing apparatus according to the recommendations of the MSDS.

  • Page 14: Operator Responsibilities

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 3 OPERATOR RESPONSIBILITIES JUNE 2007 CONTENTS – SECTION 3 Owner/Operator Responsibilities Shot Blasting...
  • Page 15 The owner/operator is responsible for the observance of all safety precautions expressed in this manual. The owner/operator should be trained by a Blastrac Technician for the operation and maintenance of Blastrac equipment. The owner/operator should provide the necessary blasting media in accordance with the recommendations of a Blastrac Technician so that the 1-8DEZ will operate at its maximum efficiency.

  • Page 16: Description & Functions

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 4 DESCRIPTION & FUNCTIONS JUNE 2007 CONTENTS – SECTION 4 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 –...
  • Page 17 JUNE 2007 4.1 BLAST UNIT – GENERAL ® The Blastrac equipment series described herein includes the 1-8DEZ Blast Unit. This model is used in conjunction with the BDC-1216 (Please refer to section 1.3 ventilation). Each combination comprises a horizontal surface preparation, closed cycle, shot-blasting system.
  • Page 18 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 4 DESCRIPTION & FUNCTIONS JUNE 2007 1-8DEZ General Components (See drawing 421-0001 for a detailed parts breakdown) Figure 4.1.1 1-8DEZ General Components Shot Blasting...
  • Page 19 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 4 DESCRIPTION & FUNCTIONS JUNE 2007 4.2 BLAST UNIT – ABRASIVE CLEANING HEAD This section refers to Figure 4.1.2 on page 20. The center of the patented abrasive cleaning head is the four bladed, six-inch blast wheel that accelerates the abrasive towards the surface being cleaned.
  • Page 20 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 4 DESCRIPTION & FUNCTIONS JUNE 2007 Abrasive Cleaning Head Figure 4.2.1 Abrasive Cleaning Head 4.3 BLAST UNIT – ABRASIVE CONTROL VALVE This section refers to Figures 4.3.1, 4.3.2, and 4.3.3 on page 21. The abrasive control valve regulates the amount of abrasive delivered to the blast wheel.
  • Page 21 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 4 DESCRIPTION & FUNCTIONS JUNE 2007 by a magnetic strip. A slight gap exists between the disk on the butterfly assembly and the inner wall of the valve. When the disk is horizontal, the magnetic strip provides a seal that closes the gap with steel shot and stops the flow of abrasive.
  • Page 22 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 4 DESCRIPTION & FUNCTIONS JUNE 2007 4.4 BLAST UNIT – REBOUND CHAMBER (PLENUM) Once the abrasive has impacted the work surface, the shot is directed into the rebound plenum. This curved portion of the plenum absorbs a large percentage of the force exerted by the high velocity abrasive and helps dissipate the heat generated by the blast process.
  • Page 23 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 4 DESCRIPTION & FUNCTIONS JUNE 2007 Rebound Chamber – Deflector Plate – Hopper Figure 4.5.1 Rebound Chamber – Deflector Plate – Hopper Shot Blasting...
  • Page 24 The brush seals drag across the work surface allowing clean air to be drawn inside the 1-8DEZ. The air draw aids in the cooling and the recycling process.
  • Page 25 This steel abrasive is made of high quality martensitic steel to provide operating longevity and minimal abrasive breakdown. The 1-8DEZ is designed to operate with abrasive in sizes S-110 through S-390. The selection of proper abrasive is very important to the performance of the Blastrac shot cleaning system.
  • Page 26 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 5 START-UP PROCEDURES & PRECAUTIONS JUNE 2007 CONTENTS – SECTION 5 Start-Up Procedures Blast Cleaning Shut Down Shot Blasting...

  • Page 28: Start-Up Procedures

    Blastrac representative before attempting to operate or maintain the 1-8DEZ. The 1-8DEZ and the dust collector should be moved to the cleaning site. Both machines can be hand-towed or moved by a lift truck. Put the 1-8DEZ in “Maintenance Mode” as described in Section 2.3.
  • Page 29 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 5 START-UP PROCEDURES & PRECAUTIONS JUNE 2007 (cont) Remove the screen and check the butterfly valve at the bottom of the hopper. It should be in the horizontal position. Replace the bottom screen and add approximately eight (8) to ten (10) pounds of abrasive.
  • Page 30 2. Turn the main power to OFF. 3. Turn dust collector off. 4. Be sure all rotating parts are fully stopped and the 1-8DEZ is in “Maintenance Mode”, as described in section 2.3, before attempting to inspect or maintain the blast unit or the dust collector.
  • Page 31 START-UP PROCEDURES & PRECAUTIONS JUNE 2007 At the end of each job, the dust bin and the shot hopper should be emptied. Abrasive and dust left in the 1-8DEZ or the dust collector will stick together when exposed to moisture. Shot Blasting...
  • Page 32 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 6 SETTING THE CORRECT BLAST PATTERN JUNE 2007 CONTENTS – SECTION 6 Setting the Correct Blast Pattern Shot Blasting...

  • Page 33: Setting The Correct Blast Pattern

    Wheel Rotation - The blast wheel must be rotating in the proper direction indicated on the housing that surrounds the blast wheel. When viewed from the operator’s position, the 1-8DEZ’s blast wheel will rotate clockwise. Worn Wheel Kits - Wheel kit components such as blades, impellers and control cages vary in different machines but perform similar functions.
  • Page 34 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 6 SETTING THE CORRECT BLAST PATTERN JUNE 2007 Control Cage “Trial & Error” Setting The initial setting of the control cage for a machine that has the blast wheel rotating in a counter- clockwise direction is between 8:30 and 10:30. The leading edge should be at 10:30.

  • Page 35: Edging Mode

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 7 EDGING MODE JUNE 2007 CONTENTS – SECTION 7 Changing to the Edging Mode Shot Blasting...
  • Page 36 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.
  • Page 37 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 7 EDGING MODE JUNE 2007 Figure 7.1.1 Edging Mode Shot Blasting...
  • Page 38 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 8 EQUIPMENT CALIBRATION JUNE 2007 CONTENTS – SECTION 8 Equipment Calibration Shot Blasting...

  • Page 39: Equipment Calibration

    WARNING: Calibration of items 1, 2, and 6 must be made with the 1-8DEZ in Maintenance Mode (See Section 2.3). 1. Blast Housing Height - The bottom of the blast housing (magnets) should be between 1/8” to 1/2” above the surface being cleaned. A smaller clearance can be obtained for smooth surfaces but height may need to be adjusted for rough surfaces.
  • Page 40 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 9 WEAR PARTS JUNE 2007 CONTENTS – SECTION 9 Wear Parts Replacing Grinder Motor Maintenance Log Shot Blasting...

  • Page 41: Wear Parts

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 9 WEAR PARTS JUNE 2007 9.1 WEAR PARTS Certain portions of the blast unit are continuously exposed to high velocity abrasive. These areas and their corresponding parts must be periodically inspected for wear and erosion to keep from damaging components that are not normally exposed to the abrasive blast.
  • Page 42 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 9 WEAR PARTS JUNE 2007 Catalog Drawing Item Quantity Description Number Number 451476 7680200 Control cage/ 459556 77D0663 497307 95B0063 681154 900D244 681155 900D245 690825 95B0015 690826 95B0016 690830 420-0029 P001125 420-0012 969763 420-0027...
  • Page 43 JUNE 2007 9.2 REPLACING GRINDER MOTOR The grinder motor supplied with your 1-8DEZ was specially designed for this machine; do not substitute with alternate brands. Substitution may case the assembly to fail resulting in mechanical failure and possible injury. Always follow the below specifications when replacing the grinder motor.
  • Page 44 OPERATING MANUAL SECTION 9 WEAR PARTS JUNE 2007 9.2 REPLACING GRINDER MOTOR, CONT. WARNING: The 1-8DEZ must be placed in Maintenance Mode (see section 2.3) prior to carrying out any inspection or part replacement on the 1-8 DEZ. Part Inspection...
  • Page 45 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 9 WEAR PARTS JUNE 2007 9.3 MAINTENANCE LOG Liners – Inspect for wear Checked Change Blast wheel/cage - Inspect for wear Checked Change Checked Change Filters - Inspect - clean or replace Checked Change Power Cords - Inspect for splits or cuts Shot valve –...
  • Page 46 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 10 BLAST WHEEL REPLACEMENT JUNE 2007 CONTENTS – SECTION 10 10.1 Blast Wheel Replacement Shot Blasting...
  • Page 47 BLAST WHEEL REPLACEMENT JUNE 2007 10.1 BLAST WHEEL REPLACEMENT WARNING: The 1-8DEZ must be placed in Maintenance Mode (see section 2.3) prior to attempting to inspect, change, or adjust the blast wheel. See Section 4 and drawing 421-0001 for parts identification 1.
  • Page 48 Section 3, Description and Function in addition to a full parts breakdown in drawing 421-0001. Original Blastrac wheels are designed and dynamically balanced for use at high speeds. Use of any other blast wheel may cause damage to the 1-8DEZ and/or injury to operator and surrounding personnel. Shot Blasting...
  • Page 49 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 11 TROUBLESHOOTING JUNE 2007 CONTENTS – SECTION 11 11.1 Blast Unit – Mechanical Troubleshooting 11.2 Dust Collector – Ventilation System 11.3 Vacuum adjustment – Operating Tips Shot Blasting...

  • Page 50: Blast Wheel

    11.1` BLAST UNIT – MECHANICAL TROUBLESHOOTING WARNING: All operators and maintenance personnel should read and understand all of the operating instructions prior to operating or maintaining the 1-8DEZ. Failure to adhere to these recommendations could result in equipment damage, serious injury, or death.

  • Page 51: Troubleshooting

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 11 TROUBLESHOOTING JUNE 2007 (Cont) Possible Cause Remedy Trouble Increased cleaning time. a. Low abrasive in a. Check abrasive level. storage hopper. b. Abrasive may contain b. Contaminated substantial percentage of fines abrasive. and contaminants. Check c.

  • Page 52: Specifications

    11.3 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.
  • Page 53 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 12 SPECIFICATIONS JUNE 2007 CONTENTS – SECTION 12 12.1 Specifications – Blast Unit Shot Blasting...
  • Page 54 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 12 SPECIFICATIONS JUNE 2007 12.1 SPECIFICATIONS – BLAST UNIT 1-8DEZ MECHANICAL DATA Recommended Dust Collector BDG-1216 (200CFM) Length (Base) 24 inches Length (including handle in normal position) 45 inches Height (excluding handle) 19.5 inches...
  • Page 55 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 13 RECOMMENDED SPARE PARTS JUNE 2007 CONTENTS – SECTION 13 13.1 Recommended Spare Parts Shot Blasting...

  • Page 56: Recommended Spare Parts

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 13 RECOMMENDED SPARE PARTS JUNE 2007 13.1 RECOMMENDED SPARE PARTS Catalog Drawing Item Quantity Description Number Number 451476 7680200 Control Cage/55 D EG 459556 77D0663 Wheel/6-1/2” Open Face 497307 95B0063 Liner/Top-SLL 681154 900D244 Retainer/Side...

  • Page 57: Reference Drawing

    MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 14 REFERENCE DRAWINGS JUNE 2007 CONTENTS – SECTION 14 14.1 Reference Drawings Shot Blasting...
  • Page 58 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 14 REFERENCE DRAWINGS JUNE 2007 14.1 REFERENCE DRAWINGS 421-0001 Shot Blasting...
  • Page 59 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 14 REFERENCE DRAWINGS JUNE 2007 421-0001-2 Shot Blasting...
  • Page 60 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 14 REFERENCE DRAWINGS JUNE 2007 421-0001-3 Shot Blasting...
  • Page 62 MODEL 1-8DEZ BLASTER OPERATING MANUAL SECTION 14 REFERENCE DRAWINGS JUNE 2007 421-0001-4 Shot Blasting...

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