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Chapter7 Maintenance and service
To ensure normal use of the laser machine it is necessary to perform routine care and
maintenance on equipment. Since the whole machine tool is assembled with high-precision
parts, be careful in the routine maintenance process, operate in strict accordance with the
rules of each part, and perform maintenance by dedicated personnel to avoid damage to
components.
7.1 Prepare the following accessories
➢ Cotton swab: 2 bags;
➢ Degreasing cotton: 5 bags;
➢ Alcohol: 500ml, purity > 99.5%;
➢ Acetone: purity > 99.5 %, water < 0.3%, capacity: 500ml;
➢ Lens cleaning wipes: 5pcs;
➢ Inflatable ball: 1pcs;
➢ Dropper needle: 1pcs (medical);
➢ Disposable latex gloves: 1 pair;
➢ Multimeter: 1pcs.
7.2 Daily maintenance requirements
1. Clean laser cutting machine to maintain a clean and tidy appearance.
2. Check output voltage of voltage-stabilized power source (required to be 380V-400V). If
carbon brush acts frequently in voltage stabilizer, the external voltage may be unstable
Shut down and stop production.
3. Each shift shall return to their original points after starting up the machine. If there is any
problem, check whether the switch collision block at the original point is deviated.
4. Check cutting nozzle, timely replace if any defect, and adjust coaxiality if any part of
cutting head is moved (such as cutting torch and even collision cutting head, etc.).
5. Calibrate the sensor while executing calibration procedures. It is necessary to re-calibrate
every time nozzle or ceramic body is replaced or after a collision.
6. Check protective lens of cutting head, and clean it if necessary.
7. Check temperature and pressure of cooling water in water chiller. Temperature in water
chiller is higher than 17°C and lower than 23°C. Temperature of circulating water in laser
is about 28°C. Pressure at water intake is between 1 and 6bar.
8. Drain water out from air storage tank of air compressor.
9. Drain water out from filter of refrigeration dryer once every day, and pay attention to
normal drainage of drain valve.
10. Clean waste tank at bottom of the machine.
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