DUSTLESS BLASTING DB500 MOBILE XL User Manual Download Page 24

Dustless Blasting® Blast Pot

CONTROL BOX MAINTENANCE

The control box has its own pressure regulator. This is already set properly from the factory, and should not be tampered 
with  under normal circumstances. However, if it gets changed accidentally, make sure you readjust it to 90 PSI.

CONTROL BOX VALVE (LOCATED IN CONTROL BOX) MAINTENANCE

It is time to service your control box valve when the shutoff time is longer than usual or the valve is not actuating properly. 
To service the control box valve (located in the control box), follow these steps or checkout our online academy:

1. Depressurize the machine.
2. Label each endcap left or right.
3. Remove the 2 (two) screws and set endcaps aside.
4. Remove piston.
5. Lightly lubricate piston with supplied grease or install new piston. 
6. Install or replace any damaged gaskets or O-rings.
7. Re-install both endcaps.

PRESSURE REGULATOR

You rarely have to adjust the pressure, because it is better to adjust with stand off distance. Occasionally you should 
lubricate the threads on this knob with a lubricant such as lithium grease. 

REGULATOR

You will find the filter regulator on the left side of control box. Like the moisture trap, you should leave it cracked open so it 
can always drain to avoid water entering your control box valve. 

CONDENSING FAN

The condensing fan cools the hot air that comes out of the compressor. You don’t 
really need the fan if you’re wet blasting, but it’s very important if you’re dry blasting. 
You should also turn it on when using a paint spray gun with your compressor. 

MOISTURE TRAP (MT1 or MT2)

The moisture trap collects water from the air running through the system. Periodically drain it by opening the lever on the 
bottom. Alternately, open the lever on the bottom so it can constantly drain slowly. 

On the moisture trap, you will find a regulator for the water pump. We pre-set these regulators to about 80-90 PSI. You may 
use the regulator for a painting setup, but be sure to return it to 80-90 PSI when you’re done.

WATER PUMP

16

Best Practices for Maintaining your Mobile

ALWAYS DEPRESSURIZE THE 
MACHINE BEFORE PERFORMING 
ANY MAINTENANCE.

MAKE SURE ALL GASKETS 
ARE PROPERLY REPLACED TO 
PREVENT LEAKS

TURN OFF CONDENSING FAN 
WHEN NOT IN USE TO AVOID 
BATTERY DRAIN.

PERIODICALLY CHECK THE TORQUE SETTINGS ON THE 
VARIOUS WATER PUMP BOLTS. THIS WILL ENSURE YOU 
DON’T LOSE ANY AIR THROUGH THE WATER PUMP, AND 
GET OPTIMAL PERFORMANCE. 

Summary of Contents for DB500 MOBILE XL

Page 1: ...DUSTLESS BLASTING MOBILE USER MANUAL DB500 MOBILE S DB500 MOBILE XL DB800 MOBILE DB800 MOBILE DUAL...

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: ...Maintenance and Best Practices 15 Best Practices for Maintaining your Mobile 16 Pinch Hose Maintenance Guide 17 Compressor Maintenance 18 Troubleshooting 19 Storing Machine 21 Cold Weather Considerat...

Page 4: ......

Page 5: ...NIMIENTO 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 Iona pesada DEBEN usars...

Page 6: ...ng the shipment You must present MMLJ Inc with proof of purchase documents including the date of purchase Any evidence of alteration erasure or forgery of proof of purchase documents will be cause to...

Page 7: ...nit are covered under the TexTrail Trailer Parts Tire Limited Warranty The tires themselves are not a product of MMLJ Inc and MMLJ Inc will not be held responsible for the repair or replacement of sai...

Page 8: ......

Page 9: ...READ CAREFULLY BEFORE OPERATING Carefully 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 s...

Page 10: ...6 Compressed Air Inlet 7 Compressed Air Pressure Gauge 8 Pressure Regulator 9 Control Box 10 Blast Pressure Gauge 11 Abrasive Lever 12 Vibrator 13 Bottom Flange 14 Overflow Valve 15 Pinch Valve 16 Abr...

Page 11: ...3 DB500 MOBILE S DB500 MOBILE XL 9 14 22 23 21 20 25 24 4 9 4 22 23 25 24 21 14 20 5 5...

Page 12: ...ever 12 Vibrator 13 Bottom Flange 14 Overflow Valve 15 Pinch Valve 16 Abrasive Control Knob 17 Vibrator Valve 18 Moisture Trap 19 Abrasive Adjustment Mark DB800 MOBILE DB800 MOBILE DUAL OVERVIEW 20 Wa...

Page 13: ...DB800 Mobile DB800 Dual Mobile 5 9 9 4 4 22 22 22 23 24 24 24 25 23 21 21 14 14 20 20 5 5 25 25...

Page 14: ...55T 55U 53 54 52 51 46A 46A 37 35 35 36 55M 55G 56 55D 55E 55F 55A 55B 55C 55P 55Q 55D 55R 55S 55J 55 CONNECT ITEM 53 TO ITEM 37 CONNECT ITEM 54 TO ITEM 56 DB500 DB800 Diagram FOR ILLUSTRATIVE PURPOSE...

Page 15: ...F TANK 25 1F 3 4 5 33 33A 33B 33D 33F 33G 33H 33C 33E 33J 33K 17 18 19 34 5A 24 26 27 28 13 11 10 11 6 12 15 15A 15A 9 8 7 14 14 28 31 30A 27 28 31 31 30 30D 30E 30C 30B 27A DB500 DB800 Diagram FOR IL...

Page 16: ...AB 9 73500 001 1 15A Abrasive Control Lever Washers FBA 4 16 Wheel Cotter Pin AB 33 C 72804 001 2 17 Wheel Washer AB 33 W 72803 001 2 18 Wheel BF 31 2 133648 001 2 19 Air Inlet Body Gasket AB 1 G 131...

Page 17: ...ric Control Box 84378 001 1 52 A Control Box Mounting Nuts Lock Washers 2 FBA 1 53 3 8 x 23 Air Hose Assembly Vibrator DB 500 134798 003 1 53 3 8 x 27 Air Hose Assembly Vibrator DB 800 134798 005 1 54...

Page 18: ......

Page 19: ...RTED START UP SHUT DOWN PROCEDURES YOUR SAFETY IS IMPORTANT TO US CAREFULLY READ ALL INSTRUCTIONS BEFORE BLASTING IMPROPER HANDLING CAN RESULT IN DAMAGE TO MACHINE SERIOUS INJURY OR DEATH TO OPERATOR...

Page 20: ...pressure gauge Fill the blast pot with clean water until the overflow valve starts to drain At this point close the air pilot valve to stop the flow of water Allow the overflow valve to finish draini...

Page 21: ...is unlocked then close the blow down valve and open the air inlet valve When the machine pressurizes you will see the abrasive lever on the blast pot pop up Note A valve is in the open position when...

Page 22: ...afety pin on the hitch to prevent slack from dragging on the ground 9 Plug the brake clip back into its box 10 Plug in lights and make sure they work Towing Safety and Hookup Procedures ALWAYS ENSURE...

Page 23: ...AINTENANCE BEST PRACTICES 15 YOUR SAFETY IS IMPORTANT TO US CAREFULLY READ ALL INSTRUCTIONS BEFORE BLASTING IMPROPER HANDLING CAN RESULT IN DAMAGE TO MACHINE SERIOUS INJURY OR DEATH TO OPERATOR OR BYS...

Page 24: ...er regulator on the left side of control box Like the moisture trap you should leave it cracked open so it can always drain to avoid water entering your control box valve CONDENSING FAN The condensing...

Page 25: ...the hose in several layers of friction tape slightly beyond the point the brass will cover 2 Place coupling over friction tape and hose screwing clockwise until hose end pushes against inside brass ri...

Page 26: ...uals can be found in the Dustless Blasting Academy online CONTACT NUMBERS FOR COMPRESSOR SUPPORT For support and troubleshooting for your compressor you can contact Dustless Blasting or contact the ma...

Page 27: ...OUT OF THE NOZZLE The blast nozzle may become clogged with debris or blast media If this occurs shut down the machine then remove the nozzle and inspect for a rock or other foreign material PINCH VALV...

Page 28: ......

Page 29: ...ns Storing Machine NEVER ATTEMPT MAINTENANCE ON PRESSURIZED EQUIPMENT BEFORE BLASTING INSPECT MACHINE TO ENSURE COMPONENTS ARE APPROPRIATELY TIGHTENED DO NOT SHAKE THE BLAST POT TO LOOSEN MEDIA ENSURE...

Page 30: ...nsions as needed and reconnect them to your blast pot 7 We recommend using a water hose to fill your blast pot instead of extending the water inlet hose To load blast pot back onto trailer after work...

Page 31: ...lessBlasting com For replacement parts and accessories visit store DustlessBlasting com For training resources visit support DustlessBlasting com To submit a ticker or to find safety data sheets busin...

Page 32: ...24 SERVICE RECORD SERVICE PREFORMED DATE SERVICED...

Page 33: ...25 SERVICE PREFORMED DATE SERVICED...

Page 34: ...Toll Free 1 800 727 5707 International 1 713 869 2227 www DustlessBlasting com...

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