Atlas Copco QMC41-50-I06 Product Instructies - Pagina 5

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QMC41-50-I06

Bit grounding test

Bit grounding is measured by the ground circuit stability and resistance with the tool running at no load

with a rotation speed of 200 rpm. Resistance is measured between the special bit 4216 2194 00 and the

outside of the tool connector and the resistance limit is 20 Ω.

Bit run out is measured with the tool securely fastened in a test rig and with the tool running at no load

with a rotation speed of 200 rpm. Measuring point is at 44 mm (length of a standard bit) out on a special

bit 4216 2194 00. Bit run out limit is 0.15 mm.

Preventive maintenance is recommended at regular intervals. See the detailed information on preventive

maintenance. If the product is not working properly, take it out of service and inspect it.

If no detailed information about preventive maintenance is included, follow these general guide-

lines:

■

Clean appropriate parts accurately

■

Replace any defective or worn parts

Recommended interval between actions:

Product Information