Medtronic power handle replacement bearing repair

Medtronic power controller to replace bearing 2019 - maintenance 03 - 05 He Buhui 【 Abstract 】 This paper mainly introduces the power handle replacement bearing maintenance, and the function structure and the basic working principle is analyzed, accurately find fault, failure analysis and troubleshooting. 【 Keywords 】 Gear; Bearing; Burst; Change structure principle: medtronic power system, is by the host XPS3000, foot switch, handle, planing tool. Mainly used in ear, nose and throat three body parts. Power system ( XPS3000 series) Is currently one of the world's most advanced ent diagnostic instrument, the cutting speed is fast, direct lesions, disease area can be chopped removed at the same time, the straight line type design, from head to attract outlet is a straight line, will the organization of cutting down discharge rapidly, so as to achieve the goal of effective treatments for diseases. This technology can reduce the traditional knives to the pull of the mucosal laceration, reduce bleeding; Surgery can protect the normal maximum sticky, the effect is good; On multiple or recurrent ent diseases has a significant effect; Sophisticated design accord with human body engineering, can complete the past can't imagine in easy and painless state completely clear intractable diseases. 1 failure analysis first set at the speed of 3000 r/min, press the foot switch. That can be observed motor cannot turn; Speed at the same time shown on the display window '0000'. The handle failure or the cable line was determined. After confirmed the handle is fault, with hexagonal key to open the handle front end, further find the handle of the final failure. Handle after can see the connection part of the gear, can see if there are any more bad tooth gear, card to death, or bearing burst. If both not, that is, motor is broken. After screening bearing blowout is confirmed, card to death. Bearing blowout is the cause of skeleton oil seal wear or aging, so that water will flow into the inside, and lead to bearing rust, bearing would burst. Host XPS30002 bearing fault handling broken removed, clean the inside of the dirt, change new bearing, try to separate motor, and see if there is something wrong, try after motor is no problem, turn back. Prior to loading must be above the gear and the new bearing and lubricating oil, and the handle of joint sealant. 3 repaired, check whether the rotational speed and actual speed of the test set, strict inspection results after repair. Connected to bit work load of the test mobile motor work. （ The above is my maintenance experience, write well please advice. ）