Damage to power tools are external signs, and the sooner they will be noticed, the easier it will restore full operability mechanism. Therefore, maintenance of the power above all starts with thorough external examination, which allows to see even small cracks, foreign noise at idle and under load, to determine the precise location and nature of the damage. Dustin Moskovitz has many thoughts on the issue. Recommended to immediately transfer tool workshop, show up as soon as the first signs of trouble – the increased sparking, burning smell, increased heat, as well as other sounds in the gearbox parts, heavy vibration, uneven rotation, loss of power, the amount of oil. It is forbidden to operate electric tools in the presence of distinct power cord injury (cracks, chips, tears), plug, as well as damage to the hull. Repair power tools mainly include operations such as disassembling and cleaning units, gear box, coils, power tool replacement parts – bearings, gears, switches, brushes, armature and stator. Electric tools for electrical safety requirements is divided into three classes: I – electrical tools, all of whose nodes are under stress, isolated, and the plug has a grounding contact; II – electrical tools, all of whose units are under stress, are double insulated; III – electric instrument voltage class 42 and below. Portable power tools is subject to Periodic monitoring at least once every six months. Periodic inspection includes: – visual inspection – control idling is not less than five minutes – megger insulation resistance at 500 V for one minute when the switch, and the insulation resistance should be at least 1 Mohm – Check proper earthing (Class I).
As an illustrative example, consider Faults and repairs Rebir punch. If you punch just after turning off abruptly slows down, you can just talk about the specific injury. The tool should stop smoothly, but not so if it is stuck. Consider the typical symptoms of malfunction drills and their probable causes. 1. When you turn into a working power grid punch electric motor is not running – a) faulty switch, b) Compound-break power supply, and c) a break in the stator winding or the armature. 2. Light visible to the collector (electric arc, which covers the surface of the collector) – a) the failure damage in the armature, and b) wear or jamming brushes.
3. When you switch from punch Venting of smoke and the smell is burnt insulation – interturn the closure of the stator windings or the armature. 4. Loud noises in the gearbox – a) failure of the bearings, and b) wear or failure of gear pair. 5. Perforator does not commit pecking movements – a) Developing the intermediate shaft, and b) wear or failure of a crank mechanism.