Hilti TE76 te76P hammer disassemble and problem find blinking service light

In this video I have disassembled Hilti TE76 hammer drill. This one had bloncking serivce light. Normally blinking serivce light means electric problems. If light turns on and stays, that means it`s time for maintenance serivce or other mechanic repair. To resolve both problems you need to disassemble yout Hilti hammer and check if it`s don`t have any mechanical damages or any of the parts are not worn out