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PBT-2 Internal pipe blasting tool

3. Performing abrasive blast cleaning

Place the PBT-2 ROTOBLAST device into the pipe.

Connect the PBT-2 ROTOBLAST to the abrasive blast machine.

Push the PBT-2 ROTOBLAST through to the opposite end of the pipe.

Turn on the abrasive blast machine.

Check the rotary speed of the head (30). Adjust if necessary.

Push the PBT-2 ROTOBLAST device by the abrasive blast hose through the pipe. Carry out

the procedure at a speed that ensures the necessary level of cleaning.

When the device exits the pipe, check that there is no discharge of compressed air or dust

through the control ports of the bushing (6). If there is leakage of compressed air or dust,

see point No.6.

4. Maintenance

ATTENTION!

The main system for slowing uncontrolled rotary acceleration of the rotating head with

abrasive-air nozzles is the brake housing (8) and the friction pad brake (32).

After each cleaning operation, it should be checked that there is no discharge of com-

pressed air or dust through the control ports of the bushing (6). If there is leakage of

compressed air or dust, see point No.6.

The PBT-2 ROTOBLAST device must not be used with a worn leather gasket (15).

Check for wear of the friction pad brake (32) after every twelve hours of operation.

Check the rotation of the leg wheels (38) every time. If rotation is jamming or locking,

remedy the problem or contact the service centre.

Remember that the rotating head (30) has direct contact with the working abrasive-air

mixture. Ensure that it is intact and replace with a new one if there are signs of wear.

If there is prolonged use of PBT-2 ROTOBLAST with a worn leather gasket, the rubber

spring (34) must be replaced.

If there is a worn groove (recess) in the carbide ring (33) which is more than 0.6 mm deep,

replace it with a new one.

In order to prevent increased wear of the abrasive blast nozzles, switch them around after

10 work cycles of the unit.