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7

Maintaining your Blast Pot

CONSUMPTION CHART

No damage to the machine will occur by leaving water and media inside of it. However, due to the organics in the media, a 
foul smell can occur when left stagnant for longer than 24 hours. For this reason, when the machine will not be in use for 
an extended period of time, it is recommended that you remove water and media from machine either by blasting it out or 
by removing the bottom flange, air inlet jet, and gasket, and allowing it to drain. 

BLASTING WEAR PARTS

Certain parts wear faster than others and will require regular maintenance and inspection depending on the method of 
blasting you are using as well as the abrasive you are blasting with. These items should be inspected for damage or wear, 
and replaced an average of 400 hours if dry-blasting, or 2000 hours if wet-blasting. 

Wear items include but are not limited to:

FLUSHING BLAST POT OUT

Regularly flushing the pot avoids buildup on inside walls, which could inhibit the system. Once a month or so, you should 
rinse the pot out:

1. Fully depressurize machine.
2. Remove 2 bolts and 2 air inlet body lugs from bottom of machine.
3. Remove air inlet jet and gasket.
4. Push air inlet body and air hose out of the way.
5. Flush out inside of equipment with water.
6. Once finished, replace the gasket, inlet jet, and lugs and bolts. 

• Hardened Elbow Insert
• Hardened Air Inlet Jet
• Hardened Pipe

• Flat Backed Pinch Hose Coupling
• Inlet Jet Gasket
• Elbow Insert Gasket

• Elbow Cap Gasket
• Nozzle

MEDIA BUILD UP INSIDE POT - ADJUSTING VIBRATOR VALVE

On the left side of your blast pot, a small brass petcock valve controls the vibrator speed. This vibrator valve must be open 
during blasting. Adjust it so that you feel maximum vibration at the head of the machine. This will ensure that all of the 
media gets “shaken” to the bottom of the tank. 

Over time, you could experience abrasive buildup inside the pot which actually changes the harmonics of the pot. If the 
system is not feeding right, adjust the valve by turning it towards the off position to slow the vibrator down, allowing the 
pot to rattle more. 

ABRASIVE NOT FLOWING CORRECTLY - Assuming proper Installation, air pressure, and abrasive.

Check media quality. Your machine is made to run with clean, high quality abrasive or media. Dirt will get muddy and clay 
will harden.

NOTHING IS COMING OUT OF THE NOZZLE

The blast nozzle may become clogged with debris or blast media. If this occurs, put the machine in the blowdown 
position, then remove the nozzle and inspect for a rock or other foreign material. 

Troubleshooting

Please call the manufacturer directly with any additional maintenance questions.

1-800-727-5707  |  [email protected]

Summary of Contents for DB150

Page 1: ...DB150 USER MANUAL...

Page 2: ...J INC 5711 Schurmier Rd Houston TX 77048 Support DustlessBlasting com Email 713 868 8041 Fax 1 713 869 2227 International Facebook com DustlessBlaster DustlessBlaster Youtube com MMLJManufacturing Dus...

Page 3: ...t Pot 7 Troubleshooting 7 Containment Masking and Blast Pattern Adjustments 8 Switching from Wet Blasting to Dry Blasting 8 Storing Machine 9 Choosing Your Blast Pressure 10 Choosing Your Abrasive 11...

Page 4: ...s de operacion y mantenimiento ES OBLIGATORIO usar equipo protector personal al manejar este tipo de equipos El Operador DEBE estar equipado con guantes delantales y protectores de brazos de cuero 0 I...

Page 5: ...teration erasure or forgery of proof of purchase documents will be cause to void this warranty The warranties listed above do not extend to any product that has been damaged or rendered defective a as...

Page 6: ......

Page 7: ...y read the INSTALLATION OPERATING and MAINTENANCE directions supplied with the machine from the factory If you do not have a copy please contact your employer supervisor or the MMLJ Inc Company This s...

Page 8: ...1 8 13 7 7 6 10 8A 2 3 4 5 15 17 16 37 36 NOTE ITEMS 36 37 ARE INSTALLED ON THE INSIDE OF TANK CONNECT ITEM 41 TO ITEM 40 27D 27 27B 27C 27E 27G 27H 27J 27L 34 35 27S 27T 33 41 28 29 29 28 30 32 31 2...

Page 9: ...G 131227 001 1 18D Outlet Elbow Insert Gasket M 23 G 131147 001 1 18E Outlet Elbow Insert M 23 73602 001 1 18F Outlet Elbow Body M 17 B 80789 001 1 19 Elbow Adapter Flat Gasket KF 17 G 131149 001 1 2...

Page 10: ...131127 001 1 32 Air Inlet Body Gasket AB 1 G 131228 001 1 33 Wheel Washer C 33 W 72849 001 2 34 Wheel Cotter Pin C 33 C 72848 001 2 35 Wheel C 31 2 133730 001 2 36 1 2 300 90 Degree Elbow C 16 T 13270...

Page 11: ...the fill cap lock and then remove the fill cap Insert the fill funnel into the fill opening and pour in 5 gallons of water 7oz of rust inhibitor if blasting metal and 50 lbs of recycled bottle glass...

Page 12: ...ose the air inlet valve and open the blow down valve to release the pressure Let the blast pot fully depressurize before turning off the compressor Note If you turn the compressor off first the pressu...

Page 13: ...of equipment with water 6 Once finished replace the gasket inlet jet and lugs and bolts Hardened Elbow Insert Hardened Air Inlet Jet Hardened Pipe Flat Backed Pinch Hose Coupling Inlet Jet Gasket Elb...

Page 14: ...nozzles XL Performance Nozzle Increases abrasive particle velocity Allows for increased standoff distance while improving production and efficiency CLEANUP Depending the amount of media used plastic m...

Page 15: ...nlet body up to bottom of machine 4 Use lugs and bolts to secure casting STORING MACHINE IN WINTER If storing your machine for the winter months it is advised to take the following precautions to prev...

Page 16: ...If you need to blast on softer material or very thin metal lowering the pressure is a good idea to prevent damage A clockwise rotation of the pressure regulator knob will increase the pressure while...

Page 17: ...de variety of abrasives either wet or dry For wet blasting any abrasive that sinks in water and is not water soluble can be used However abrasives that are dirty or have a very inconsistent particle s...

Page 18: ...er and heavier the abrasive is the rougher the profile will be Using larger more coarse abrasives will decrease the run time in your machine For example if you are blasting with 40 70 crushed glass an...

Page 19: ...t stripping aggressive cleaning Medium Fast High Etch Moderate 40 65 HRC 260 lbs ft3 Organic soft media ideal for soft surfaces such as wood Slow No Etch No 4 4 5 40 lbs ft3 Angular organic grit for m...

Page 20: ...ustlessBlasting com For replacement parts and accessories visit store DustlessBlasting com For training resources visit support DustlessBlasting com To submit a ticket or to find safety data sheets bu...

Page 21: ......

Page 22: ...Toll Free 1 800 727 5707 International 1 713 869 2227 www DustlessBlasting com...

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