Here's an overview of your mobile blaster's maintenance needs.
Daily Maintenance
MMLJ Parts
- Inspect the pinch hose.
- Inspect the blast hose.
- Check for soft spots by squeezing it about every six inches. Also, look for holes, cracks, and disintegration of the outer casing. If you discover several soft spots, holes or general deterioration, it's time to replace the hose.
- Ensure filter regulator is cracked open so it can drain.
- Ensure moisture trap drain is cracked open (see mobile unit best practices).
- Inspect all gauges.
- Ensure gauges are at 0 when machine is not in operation.
- Walk around trailer and inspect tires and breaks.
RPB Nova 3
- Inspect Radex filter (see when to replace radex air filter).
Compressor
- Check compressor oil level (see compressor oil change procedure).
- Check for leaks in oil filter seal, hydraulic lines and fittings, pneumatic blue lines, and clear lines.
- Make sure there is no obstruction of the canopy vents.
- Make sure there is no obstruction of the radiator fins.
- Check compressor air filters
- View these compressor maintenance articles for more information:
Engine
- Check engine oil level
- Check engine coolant level
- Check fuel level and top up if necessary
- Check for leaks in fuel lines, fuel filter seal, and fuel tank cap
- Check engine air filters
Weekly Maintenance OR about every 10 work hours
MMLJ Parts
- Rotate the pinch hose https://support.dustlessblasting.com/blasting-basics/how-do-i-rotate-and-replace-the-pinch-hose
- Check the torque on the water pump bolts, see torque chart below
- Inspect the blast hose.
- Check for soft spots by squeezing it about every six inches. Also, look for holes, cracks, and disintegration of the outer casing. If you discover several soft spots, holes or general deterioration, it's time to replace the hose.
- Inspect nozzle and nozzle holder.
- Check the air filter regulator on your control box (see how to clean the air filter regulator).
Compressor
- Clean compressor air filters, replace as needed
Engine
- Clean engine air filters, replace as needed
Monthly Maintenance OR about every 40 work hours
MMLJ Parts
- Replace the pinch hose monthly, or after it has been rotated 4 times.
- Lubricate the threads of the pressure regulator knob with a lubricant such as lithium grease or Never-Seez (see other mobile unit best practices).
- Inspect and lubricate the parker valve.
- Inspect the fill cap gasket, clean or replace if necessary.
- Flush out blast pot to prevent rust from accumulating inside (can skip this if you make it a habit of not leaving wet media in the pot overnight).
- Check the air filter regulator on your control box (see how to clean the air filter regulator).
- Rinse the underside of the trailer, especially in areas where snow/icy roads are present.
Compressor
View these compressor maintenance articles for more information:
- Clear your compressor heat vents and radiator of any debris
- Clean compressor air filters. To clean, gently shake to remove loose debris. It is not recommend to use compressed air.
- Check connecting hoses for leaks or cracks.
- Check all the mounting bolts as well as fittings to make sure everything is tight and hasn’t vibrated loose.
- Inspect battery electrolyte/water level, top off just above the cell plates
- At the first 50 hours, change the compressor oil & filters. Future oil changes should be performed every 500 hours after this.
Engine
- Check coolant levels and top off if needed.
- At the first 50 hours, change the engine oil & filters. Future oil changes should be performed every 500 hours after this.
- At the first 50 hours, replace the fuel filter (and pre-filter if present). Future fuel filter changes should be performed every 500 hours after this.
Less Frequent Maintenance
MMLJ Parts
- Check dry blast wear items. Depending on how much dry blasting you do, these parts may have to be replaced sooner or later than 6 months.
Compressor
- Check compressor manufacturer maintenance recommendations.
Engine
- Check engine manufacturer maintenance recommendations (see your engine manual shipped with your machine).