PROSOFT MVI56-ADM 帶以太網(wǎng)
不可能預(yù)料到現(xiàn)場遇到的每一種麻煩。本手冊涵蓋了最常見的故障。調(diào)節(jié)不良可能是由于調(diào)速器性能故障，也可能是因?yàn)檎{(diào)速器試圖糾正原動機(jī)或驅(qū)動設(shè)備的故障操作。還必須考慮任何輔助設(shè)備對調(diào)速器所需整體控制的影響。啟動發(fā)動機(jī)、渦輪機(jī)或其他類型的原動機(jī)時(shí)，要做好緊急停機(jī)的準(zhǔn)備，以防止失控或超速，從而可能造成人身傷害、生命損失或財(cái)產(chǎn)損失。故障診斷與排除機(jī)油在機(jī)組運(yùn)行的情況下，將調(diào)速器油位保持在油視鏡上的標(biāo)記處。正確的油位在調(diào)速器殼體頂部以下0.75至1.25英寸（19至32毫米）處。臟油導(dǎo)致大多數(shù)調(diào)速器故障。使用清潔的新油或過濾過的油。使用的油容器必須完全清潔。被水污染的油會迅速分解，導(dǎo)致起泡并腐蝕調(diào)速器內(nèi)部零件。補(bǔ)償調(diào)整和針閥必須在調(diào)速器控制發(fā)動機(jī)或渦輪機(jī)的情況下正確調(diào)整補(bǔ)償調(diào)整和滾針閥，即使補(bǔ)償可能已在工廠或調(diào)速器測試設(shè)備上進(jìn)行過調(diào)整。盡管調(diào)速器的運(yùn)行可能令人滿意，因?yàn)闄C(jī)組在無負(fù)載的情況下以恒定速度運(yùn)行，但調(diào)速器仍可能無法根據(jù)其控制的負(fù)載和發(fā)動機(jī)進(jìn)行正確調(diào)整。負(fù)載變化或速度設(shè)定值變化后，高過速和低欠速，或恢復(fù)速度緩慢，都是補(bǔ)償調(diào)節(jié)和針閥設(shè)定值不正確的結(jié)果。定義使用以下頁面上的故障排除圖表（表5-2）來確定故障操作的可能原因并糾正這些故障。
調(diào)整補(bǔ)償制度。請參閱本章中的補(bǔ)償調(diào)整。下垂桿和凸輪（37和38）的調(diào)整會影響速度設(shè)置。因此，在進(jìn)行高速和低速停止設(shè)置之前，必須檢查和調(diào)整下垂。以轉(zhuǎn)速為1450轉(zhuǎn)/分、下降設(shè)置為3%的示例為例，移動轉(zhuǎn)速設(shè)置軸，使最低燃油轉(zhuǎn)速降低約1450轉(zhuǎn)/分鐘。UG杠桿調(diào)速器的最大推薦恒定運(yùn)行速度為1500 rpm。10.將負(fù)載增加到最大值，并觀察速度下降到1405 rpm。減少了3%。如果轉(zhuǎn)速降至1405 rpm以下，則表示下降幅度大于3%。下垂桿和凸輪組件的尺寸“C”應(yīng)略微增加。如果轉(zhuǎn)速降至1405 rpm以上。指示下降小于3%。下垂桿和凸輪組件的尺寸“C”應(yīng)稍微減小。降速調(diào)整正確后，設(shè)置高速和低速擋塊。11.將速度設(shè)定軸移動到規(guī)定的最大速度，并施加最大負(fù)載。將軸鋸齒上的高速止動桿推到盡可能靠近左側(cè)止動螺釘（高速止動螺釘）凸臺的位置。12.使用高速止動螺釘將彈齒調(diào)整到高速設(shè)置（逆時(shí)針增加），并用螺母（23）鎖定。13.用最小負(fù)載將速度設(shè)定軸移動到指定的低速設(shè)定值。將低速止動桿滑入位置，盡可能靠近上部止動螺釘（低速止動螺釘）的凸臺。14.使用低速止動螺釘對低速設(shè)置進(jìn)行微調(diào)（逆時(shí)針方向減?。⒂寐菽福?3）鎖定。
The effect of any auxiliary equipment on the overall control required of the governor must also be considered. Be prepared to make an emergency shutdown when starting the engine, turbine, or other type of prime mover, to protect against runaway or overspeed with possible personal injury, loss of life, or property damage. Troubleshooting Oil Keep the governor oil level to the mark on the oil sight glass with the unit operating. The correct oil level is 0.75 to 1.25 inch (19 to 32 mm) below the top of the governor case. Dirty oil causes most of all governor troubles. Use clean new or filtered oil. Oil containers used must be perfectly clean. Oil contaminated with water breaks down rapidly, causing foaming and corrodes internal governor parts. Compensating Adjustment and Needle Valve The compensating adjustment and needle valve must be correctly adjusted with the governor controlling the engine or turbine,
Once the droop adjustment is correct, set the high and low speed stops. 11. Move the speed setting shaft to the maximum specified speed and apply maximum load. Push the high speed stop lever on the shaft serrations as close to the boss at the left hand stop screw (high speed stop screw) as possible. 12. Use the high speed stop screw to make tine adjustments to the high speed setting (counterclockwise to increase) and lock with nut (23). 13. Move the speed setting shaft to the specified low speed setting with minimum load. Slide the low speed stop lever into position as close to the boss of the upper stop screw (low speed stop screw) as possible. 14. Use the low speed stop screw to make fine adjustments to the low speed setting (counterclockwise to decrease) and lock with nut (23).It is impossible to anticipate every kind of trouble that Is encountered in the field. This manual covers the most common troubles experienced. Poor governing may be due to faulty governor performance, or it may be due to the governor attempting to correct for faulty operation of the prime mover or the equipment driven.
Adjust the compensation system. See Compensation Adjustments in this chapter. Adjustment of the droop lever and cam (37 and 38) affect the speed settings. For this reason, droop must be checked and adjusted before the high and low speed stop settings are made. Using an example where the speed is 1450 rpm and droop setting is 3%, move the speed setting shaft to obtain approximately 1450 rpm off minimum fuel. Maximum recommended constant operation speed for the UG Lever governor is 1500 rpm. 10. Increase load to maximum and observe a decrease in speed to 1405 rpm. which is a 3% decrease.If speed decreases below 1405 rpm, droop greater than 3% is indicated. Dimension “C” of the droop lever and cam assembly should be increased slightly. If speed decreases to more than 1405 rpm. droop less than 3% is indicated. Dimension “C” of the droop lever and cam assembly should be decreased slightly.