Vacuum Trucks

Water blasting and jetting trucks are some of the more specialized vacuum trucks available today. While they may have many similarities to other vacuum trucks for sale, they also require a certain amount of specialized care. To retain water-blasting truck performance, keep essential maintenance in mind. Only with the right care can these powerful machines safely work well.

Maintenance Starts with Daily Observation

Like most vacuum trucks and other types of industrial equipment, water-blasting machines should undergo daily safety inspections to check for wear and tear. These checks take only a few minutes a day; however, they can make the difference between efficient use and the higher costs associated with equipment that needs repair. Even more important, these daily checks can prevent conditions that might lead to deadly accidents with jetters and similar vacuum trucks for sale.

Daily Maintenance Checks for Best Performance

To keep water blasting vacuum trucks performing their best, operators should do the following checks at least daily, although some of these maintenance items should be performed after every use:

  • Empty Filter Bags - The pumps on water blasting machines are very expensive and easily damaged. To prevent solid debris from damaging them, it is essential to frequently check and clean pump filter bags. Never let them become over full, increasing the chance that debris will bypass the filter and end up in the pump.
  • Check Belt Tension - Belt tension is a maintenance item that is most frequently overlooked. The belts on water blaster vacuum trucks should be checked daily to ensure they are properly adjusted. Tightening loosened belts will save money on fuel as well as general wear and tear on the machines. Checking belt tension is simple to do, requiring only a tap of the belt with a wrench or some other tool. If the wrench bounces back and the belt makes a thudding sound, the tension is good. If the belt sags and the wrench does not bounce back, belts should be tightened. Tensioning can be performed very easily with a belt tensioning tool that every truck should have on board.
  • Activate Rupture Disks - Always ensure that rupture disks are activated and that there is either a second rupture disk also activated or a pressure relief valve installed in its place. These disks should be set to activate at 40% and 20% above recommended pressure, respectively, for safest use.  
  • Oil Reservoir - The oil reservoir should be checked every time the blaster is started and monitored every 30 minutes to ensure water does not get into the oil. If the oil becomes discolored, this indicates water in the reservoir. The machine should be shut down and the oil replaced to prevent damage to the unit.
  • Lubrication Lines - Without proper lubrication, water-blasting trucks will sustain significant damage. Ensure lubrication lines are working properly by making sure there is water coming out of the lines and the plungers are activating.
  • Bearings, Fittings and Clutch - To keep water blaster machine bearings and grease fittings functioning properly, most manufacturers recommend cleaning and re-greasing after every use of the machine. Failure to do so could lead to debris getting pushed into the bearings. Additionally, the clutch should be greased after every use, unless it is a self-lubricating model.

Besides these daily checks, all water blasting vacuum trucks should undergo all required routine maintenance, including regular calibration of the water bypass valve, to ensure safe and efficient performance. By providing this essential care before, during, and after use, companies purchasing these very expensive vacuum trucks for sale can ensure their machines have long, safe service lives!

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