Blastrac 2-45D, Руководство по эксплуатации

Страница: 54 / 185

2-45D Operating Instructions
Maintenance
11

Move the blast head of the blast machine onto a 5-8 mm thick
steel plate and blast for 45 seconds at full power without
moving the machine from the spot.

Stop the abrasive flow and move the machine forward until the
blasted area is accessible. With both hands, carefully feel the
temperature of the blasted area. You will find the hot spot on
the blasted surface where the machine has developed the
highest blast cleaning intensity.

An even temperature from left to right indicates that the control
cages are correctly positioned.

Looking from the front side of the machine onto the left-hand
control cage: If the left side of the left blasted area is warmer,
turn the lower edge of the control cage anti-clockwise for 3-6
mm. If the right side is warmer, turn the lower edge of the
control cage clockwise for 3-6 mm.

Looking from the front side of the machine onto the right-hand
control cage: If the right side of the right blasted area is warmer,
turn the lower edge of the control cage clockwise for 3-6 mm. If
the left side is warmer, turn the lower edge of the control cage
anti-clockwise for 3-6 mm.

This process has to be repeated until an even temperature
across the blast pattern is achieved.
 Now the blasting procedure can be started. When a concrete
surface is to be blasted, check the blast pattern again after
some meters and re-adjust slightly if necessary. The blast
pattern will change with an increased wear of the blast wheels,
blades, impellers and control cages, and when the size of the
employed abrasive is changed.
Never loosen the cage clamps or try to adjust the control cage
when the machine is in operation.