User manual HILTI HG 500

[. . . ] Permitted {isc types: Use only grinding discs which are approved for a speed of at least. Use_only synthetic resin-bonded, fibie+einforced grinding discs which are approved for a peripheral speed of B0 m/sec. [. . . ] This oermits materials to be oround or cut optimally as a result of the constant disc speed. Always disconnect the mains plug from the mains supply before working on the machine!Keep the cooling slots in the motor housing clean and free of obstructions. clean out the motor at regular intervals (approx. Every four weeks), if possible, using a let ot compressed air. the machine requires no other maintenance. Should the machine develop a fault despite having been subjected to careful m. This prevents the machine from overheating. Lf the motor is overloaded while working, the machine will stop, and will only The permitted overload is not a certain specified value, but depends on motor temoerature. Restart interlock This protection device prevents uncontrolled restading of the machine after interruption of the power supply, e. When the mains plug is accidentally disconnected by another person. Even after the supply cord has been reconnected to the mains supply, the machine can only be restarted by operating the on/off switch intentionally. The machine must first be switched off before it can be restarted. Seruice indicator The service indicator LED 16 lights up or begins to flicker approximately 8 hours before the automatic cut-out carbon brushes finally switch off the machine. [. . . ] Alwayvdlsconnect the mains plug from the mains supply before working on the The spindle lockbutton 7 should only be pressed once spindle rotation has stopped. Release the clamping nut 2 using the pin wrench. [. . . ]