Before beginning any vacuum operations, inspect all vacuum hoses, tubes, and connectors. Leaks, holes, cracks, or any other damage in these items will reduce the vacuum efficiency and may results in spills. Be sure to check/perform the following before beginning any vacuum work:
- Check for any dents or kinks in the hose that might reduce the air flow.
- Do not pile hose on top of hose as the weight may cause the hose to crush or kink.
- Always use the correct hose clamp for the house.
- Lay the hose in a safe location and do not vacuum near traffic, busy areas, or where other work is being performed.
- Verify that the hose being used is the correct hose for the material and temperature being vacuumed.
- Store all hose in a cool, dry, clean facility.
- Verify all electrical connections are good for proper static protection.
When vacuuming material, remember the following:
- The shorter the total length of the vacuum hose, the better.
- Eliminate as many unnecessary bens or turns as possible, but when needed, use large curves to reduce the wear on the hose.
- Always use a short and direct route when possible.
- If crossing any open areas, make sure the hose run is well supported. Keep in mind the additional weight of the material being vacuumed when supporting your hose run.
If vacuuming large or heavy material, use a large hose diameter. The hose diameter should be larger than the size of the material being conveyed. Using a large hose diameter will also allow higher blower speeds to carry additional air volume through the hose and more efficiently convey the material. If possible, do not reduce the diameter of the hose in the middle of a run. This reduction in diameter will change the air flow and velocity and this can result in debris plugging the hose. If a smaller hose is needed, attach a reducer at the rear opening on the debris tank and run a smaller hose through the entire length of the run. Use the largest size hose that can be handled safely and easily. Always use a vacuum nozzle at the working end of the hose. Before connecting the last section of the hose, install an in-line safety relief valve. Leave the valve open until you are ready to begin vacuum operations.
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