Preventive measures in operating electric DC motors

一．如有含矽类物质及化合物，易吸附于马达的换向器,电刷或其他物品，经马达中之电能

影响，会分解为Sio2.Sic及其他副产品，这些物质都会使换向器与电刷的接触电阻急速增加。因此马达在与含矽类物质及化合物一起使用时，要特别小心造成马达不见的损伤，尤其使用含矽类黏胶及密封材料，将马达组入贵公司部品及产品时，请注意查明在使用及硬化时，不会产生挥发性气雾，伤害到马达的特性及寿命。在选用氰化物，硫化物的黏胶时，也要特别小心造成马达不见的腐蚀。

Silicon-contained material and compound are apt to be absorbed onto the commutators, brushes and other parts of DC motors. Under the influences of electrical energy in the DC motor configuration, they will be decomposed into S_iO₂, S_iC and the like byproducts. Such substances radically increase the contact resistances between the commutators and brushes. Therefore, when the DC motors are used together with silicon-contained materials or compounds, we should pay special attention to the invisible damages brought to the DC motors. Especially, when silicon-contained viscose and sealing materials are adopted and the DC motors are assembled into targeted parts or products, please make sure that there will be no volatile aerial fogs during operations and hardening process, which jeopardize the characteristics and lifespan of the DC motors. When adopting cyanide and sulfide viscose, special attention also should be taken to prevent the DC motors from any invisible damages.

二．当组装贵公司部品及产品时，请特别注意，勿使用任何黏胶接触到马达的轴承，或黏胶流入马达本体之内。

    When assembling your parts and products, please make sure that any viscose should be prevented from touching the bearing of the DC motors or flowing into the motor configuration.

三．经由轴心，轴向压入马达的力量会对马达的寿命有极大的影响，例如滑轮齿轮，风扇页等。在有轴向压力的状况下，马达的寿命应在贵公司部品及产品中实际操作环境下测试而得之数据为准。当轴向压力过大时，应考虑用机械方式固定轴心。

    The axial press-in thrust can exert huge negative influence on the lifespan of the DC motors, esp. the axial thrusts generated by worm gears, blades and etc. In case that axial thrust is expectable, the lifespan data of the DC motors should be acquired from examinations done under actual operating conditions while the DC motors have been assembled into the parts or products. When axial thrust is excessively huge, mechanical system should be adopted to fasten the shaft.

四．在某些使用情况，驱动马达所使用的电源供应器之内电阻也会影响马达的寿命。如马达之驱动为低电压之电源，而内电阻过大是会导致马达不能达到预期的效果与特性。相反的情况，如马达之驱动为高电压之电源时，或常切换不同之驱动电压时，内电阻过小时，会使马达的寿命缩短。在周遭温度与一般标准室温有偏差时，尤其是过高或过低温时，请特别注意电源及内电阻的变化。

    Under some circumstances, the internal resistance of the power supply driving the DC motors also influences the lifespan of the DC motors. When it is low-voltage power source driving the DC motors, oversized internal resistance prevents the DC motors from achieving presumptive performance and characteristics. Conversely, when it is high-voltage power source driving the DC motors, or, driving voltages need to be switched over often, undersized internal resistance shortens the DC motors’ lifespan. When ambient temperature differs from general standard room temperature, esp. when the ambient temperature is over-high or over-low, please pay special attention to the variations in the power sources and respective internal resistances.  

五．当有相当的轴心径向的压力，如轴心上加装偏心轮，或操作环境有相当的震动，马达的寿命会受到严重的影响。在此情况，马达的寿命必须由实际情况操作的数据为依据。

    When considerable radial acting force is applied, for instance, when eccentric wheel is mounted or there are considerable vibrations in operating circumstances, severe negative influences on the DC motors’ lifespan will be resulted. Under such circumstances, lifespan data of the DC motors should be refined from operations under actual operating conditions.

六．如果贵公司装置吾司马达或组立贵公司产品时，所用设备，机械会发出超声波时，请特别注意，超声波有可能对马达内部零件造成损害。

    When the DC motors are assembled into target parts or products, if the adopted equipment and mechanism generate ultrasonic sounds, please be especially aware that the generated ultrasonic sounds may result in damages to the DC motors’ components.

七．请勿将马达储存于高温或高湿度的环境。请勿将马达储存于有腐蚀性气体的环境。这些环境都会使马达损坏，无法正常使用。请避免将电机放置于磁性物体附近或接触其表面，这将影响其功效。

    Please don’t store the DC motors in high-temperature or high-humidity environments. Please don’t store the DC motors in an environment wherein corrosive gas exists. Components of the DC motors are apt to be disabled in such environments. Therefore, malfunctions may occur.

    Don’t let magnetized or magnetic objects be placed near the electric motor or contact with the body of the electric motor. Otherwise, the performance of the electric motor will be negatively influenced.

八．周遭环境及操作温度会对马达的特性与寿命有所影响。请特别使用此马达时，周遭可能有的高温或高湿度的环境。请注意操作环境，尤其注意若铁粉被磁铁吸附，将出现噪音问题，降低使用寿命。

    Surrounding environment and operating temperature influence the characteristics and lifespan of the DC motors to some extent. Please pay special attention to contingent high-temperature or high-humidity in the environments when the DC motors are used wherein.

    Please pay attention to the operating environment. Especially, if iron powder is absorbed into the motor contour, excessive noise occurs. And the lifespan of the electric motor will be negatively influenced.

九．如果贵司需要将齿轮，滑轮等零件压入吾司马达的轴心时，请一定要适当的，正确的支撑轴心的另一端或马达的后盖及其凸起。

    When worms, gears and the like parts are mounted to the shafts of the DC motors, please be sure to support the other ends of the shafts or end caps and their embossments correctly and appropriately.

十．如果贵公司组立贵司产品时，有焊接工作的，请务必将马达上所有的贯穿孔，间接的覆盖好，不使焊渣，助焊剂，烟雾等有机会进入马达。尤其在焊接马达的连接线或端子时，要特别注意，焊接要尽快完成，否则，线材或端子周遭的塑胶会产生变形。其他预防措施也要尽量完善，以免造成马达的损害。请务必将马达的连接线或端子上残留的助焊剂清除，否则在导电时会有异常状况及损害。安装电机时，请尽量不要完全紧贴或包住电机，应为电机留出散热空间。电机表面通风孔或贯穿孔不可用来固定电机。不然，电机性能可能因此而改变。而且，未经我司同意，电机表面任何通风孔或贯穿孔都不可被堵死。

    When the DC motors are being assembled into target products and soldering is in process, please be sure to cover the through holes on the motor body indirectly, preventing soldering debris, soldering flux, soldering smoke and etc from entering into the motor body. Especially, when soldering the connecting wires or terminals, the soldering process should be done in as quickly as possible. Otherwise, deformations in wire materials and the plastic surrounding the terminals will occur. Other preventive measures also should be consummated to the greatest extent so as to ensure the DC motors from damages. Please be sure to get rid of the remnant soldering flux on the connecting wires and terminals. Otherwise, abnormalities or damages would occur when the DC motors are powered.  

    When mounting the electric motor, please try not to let anything cling to the motor body or the motor body be wrapped up. Necessary gaps should be kept for heat dissipation.

    The vent holes or through holes on the motor body should not be used to fasten the electric motor. Otherwise, the performance will be negatively influenced. Furthermore, without our consent, any of the holes should not be blocked.

十一.请务必注意，任何状况下都不可将马达的轴心锁死。当马达轴心锁死时，会产生高温，不但马达本身会损坏，也会使周遭易燃物酿成灾害。无论使用何种方式连接电源，请注意不能用过大的力或过高的问题，否则会造成电机内部零件变形。

    电机端子接线： 焊锡温度： 350℃      焊锡时间： 1秒 .

    尤其，体积小、功率高的电机通常温升快。未经我司同意，请注意不能施加过高的电压，不能运行在堵转或接近堵转状态过长时间。

    When the DC motors are powered, please be aware that the shafts should be protected from deadlocks in no circumstances. If the shaft is locked herein, ultra-high temperature occurs. And the generated heat will damage the DC motors. Likewise, the heat buildup leads surrounding inflammables to a calamity possibly.

    No matter what type of power supply will be connected to the electric motor’s terminals, please avoid applying excessive force or over-high temperature. Otherwise, transformations to the inner components will be resulted in.

    When soldering the terminals, keep the temperature of soldering tin to be < 350℃ and soldering time to be <= 1 second.

    Particularly, small-sized and high-power electric motors are subject to fast temperature rises. Please try not to apply over-high voltage. Please avoid the running at stall or long-time running at approximate stall status.

十二， 其它说明： 当换向器和电刷接触时，电机会发出轻微的电噪音。电机内部有强磁铁，所以电机机壳表面也存在磁力。电机外壳表面或边缘有少许斑点是允许的。

    Additional explanations:

    There will be slight electrical noise generated by the contact between the commutator and brushes. As magnets are contained inside, the surface of the electric motor is magnetic. Existences of a few spots on the surface or edges of electric motor are allowable.

    我司拥有一支专业的技术支持团队，致力于解决我们的电机在新产品或新应用中出现的任何问题，我们乐意与您建立良好的合作关系，我们乐意为您决绝使用中遇到的各种问题。

若需要更详细的资料，请与我们的业务员或授权的代理商直接联系。

We hold a work-team providing professional technical support, who is engaged in resolving any problems occur in our electric motors when they are used in new products or new applications. We are willing to establish benign cooperative relationship with your esteemed company and provide solutions to any motor malfunctions reported by your side.

    For more detailed information, please contact with our salesmen or authorized agents directly.