维修燃气发电机组故障的方法

　　Methods for repairing faults in gas generator sets

　　燃气发电机组机油压力不足或无压力

　　Insufficient or no oil pressure in gas generator set

　　(1)故障现象。燃气发电机组正常运行时机油压力一般为0.25?0.5MPa(详见随机使用说明书)。若机油压力低于规定的范围或压力表无压力显示，则应判断为故障。

　　(1) Fault phenomenon. The oil pressure of a gas generator set during normal operation is generally 0.25? 0.5MPa (see the accompanying user manual for details). If the oil pressure is below the specified range or the pressure gauge shows no pressure, it should be judged as a fault.

　　(2)原因分析。机油压力不足或无压力主要是由于机油量不足、机油粘度太低及泄漏严重等引起的。

　　(2) Cause analysis. Insufficient or no oil pressure is mainly caused by insufficient oil volume, low oil viscosity, and severe leakage.

　　①机油压力调节阀压力调整得过低，调节弹簧弹力不足或损坏。

　　① The pressure adjustment of the oil pressure regulating valve is too low, and the adjustment spring has insufficient or damaged elasticity.

　　②油底壳内机油油面太低，机油管接头松脱或破裂而漏油。

　　② The oil level in the oil pan is too low, and the oil pipe joint is loose or broken, causing oil leakage.

　　③机油粘度太低，或因漏入柴油、水使机油稀释。

　　③ The viscosity of the engine oil is too low, or the engine oil is diluted due to leakage of diesel or water.

　　④机油冷却器或机油滤清器堵塞，机油泵集滤器或吸油管堵塞。

　　④ The oil cooler or oil filter is blocked, and the oil pump collector or suction pipe is blocked.

　　⑤燃气发电机组各润滑部位配合间隙过大，漏油严重。

　　⑤ The clearance between the lubrication parts of the gas generator set is too large, resulting in serious oil leakage.

　　⑥机油泵齿轮磨损严重或装配不符合要求，使润滑系统中机油供应不足。

　　⑥ The oil pump gear is severely worn or assembled improperly, resulting in insufficient oil supply in the lubrication system.

　　(3)处理方法

　　(3) Handling method

　　①调整压力调节阀，如调节弹簧损坏应更换。

　　① Adjust the pressure regulating valve. If the regulating spring is damaged, it should be replaced.

　　②若上述调整后压力仍达不到要求，应先检査油底壳内机油足否太少，机油管接头是否松脱或破裂。

　　② If the pressure still does not meet the requirements after the above adjustments, it is necessary to first check whether the oil in the oil pan is too low and whether the oil pipe joint is loose or broken.

　　③对照机外正常机油检查油底壳内机油粘度有否变化，若机油稀释，则应检査漏入柴油或水的原因。漏水多是机油冷却器冷却管破裂引起的，应及时修理或更换机油冷却器。机油中漏入柴油，可能是气缸或活塞环磨损严重，使喷人燃烧室的柴油漏入曲轴箱中，这时应更换活塞环或气缸套；也可能由于喷油泵喷油过多、喷油器滴油、喷油压力过低，使未完全燃烧的柴油漏入机油中。

　　③ Check the viscosity of the oil in the oil pan for any changes compared to normal oil outside the engine. If the oil is diluted, investigate the cause of diesel or water leakage. Water leakage is often caused by the rupture of the cooling pipe of the oil cooler, and the oil cooler should be repaired or replaced in a timely manner. Diesel oil leaking into the engine oil may be due to severe wear of the cylinder or piston ring, causing diesel injected into the combustion chamber to leak into the crankcase. In this case, the piston ring or cylinder liner should be replaced; It is also possible that incomplete combustion of diesel fuel may leak into the engine oil due to excessive fuel injection from the fuel injection pump, dripping from the fuel injector, or low injection pressure.

　　④如果机油冷却器或机油粗滤器堵塞应予以疏通，并清洗集滤器和吸油管。

　　④ If the oil cooler or oil coarse filter is clogged, it should be unblocked and the collection filter and suction pipe should be cleaned.

　　⑤检査机油润滑部位的配合间隙，如间隙过大应及时更换已损坏的零件，并调整至符合要求，保证配合良好不泄漏。

　　⑤ Check the fit clearance of the oil lubrication parts. If the clearance is too large, replace the damaged parts in a timely manner and adjust them to meet the requirements to ensure good fit and no leakage.

　　⑥如经上述检查后，机油压力仍较低，则应检査机油泵是否损坏，如齿轮磨损严重或装配不符合要求，应更换齿轮或重新装配。

　　⑥ If the oil pressure is still low after the above inspection, the oil pump should be checked for damage. If the gear is severely worn or the assembly does not meet the requirements, the gear should be replaced or reassembled.

　　15.燃气发电机组机油压力过高

　　15. The oil pressure of the gas generator set is too high

　　(1)故障现象。机油压力表读数超过规定数值，同时燃气发电机组功率降低。

　　(1) Fault phenomenon. The reading on the oil pressure gauge exceeds the specified value, and at the same time, the power of the gas generator set decreases.

　　(2)原因分析

　　(2) Cause analysis

　　①机油粘度过高，牌号不对。

　　① The viscosity of the engine oil is too high and the brand is incorrect.

　　②机油主油道不畅通或堵塞。

　　② The main oil passage of the engine oil is not unobstructed or blocked.

　　③机油压力调节阀调整不当。

　　③ Improper adjustment of the oil pressure regulating valve.

　　④主轴轴承或连杆轴瓦的间隙过小。

　　④ The clearance between the main shaft bearing or connecting rod bearing is too small.

　　(3)处理方法

　　(3) Handling method

　　①先用机油尺从曲轴箱内蘸出机油，用手槎揉，检查机油是否过稠.过稠应换用符合规定的机油。

　　① First, dip the oil dipstick into the crankcase and rub it with your hand to check if the oil is too thick If it is too thick, replace it with engine oil that meets the regulations.

　　②卸下机油滤清器，检査滤芯是否过脏堵塞，如有堵塞应进行清洗或更换。如油道堵塞，应及时疏通。

　　② Remove the oil filter and check if the filter element is dirty or clogged. If it is clogged, it should be cleaned or replaced. If the oil passage is blocked, it should be cleared in a timely manner.

　　③若是机油压力调节阀压力调整不当，应将压力调整至规定值。

　　③ If the oil pressure regulating valve is not adjusted properly, the pressure should be adjusted to the specified value.

　　④若主轴承或连杆轴瓦的间隙过小，可在瓦口增加垫片以增大间隙，或更换轴瓦使间隙符合要求。

　　④ If the clearance between the main bearing or connecting rod bearing is too small, shims can be added to the bearing mouth to increase the clearance, or the bearing can be replaced to make the clearance meet the requirements.

　　16.燃气发电机组机油消耗量大

　　16. Gas generator sets consume a large amount of oil

　　(1)故障现象。用机油尺检查机油时，发现机油消耗量增多(机油减少)，或发现机油突然减少。

　　(1) Fault phenomenon. When checking the oil with an oil dipstick, it is found that the oil consumption has increased (the oil has decreased) or that the oil has suddenly decreased.

　　(2)原因分析。机油消耗量大通常是由于漏油严重引起的。

　　(2) Cause analysis. High oil consumption is usually caused by severe oil leakage.

　　①活塞、活塞环与气缸套磨损严重，使机油大量窜人燃烧室内烧掉或从排气管排出。

　　① The piston, piston ring, and cylinder liner are severely worn, causing a large amount of oil to enter the combustion chamber and burn off or be discharged from the exhaust pipe.

　　②管路接头及其他部位漏油严重。

　　② The pipeline joints and other parts have serious oil leakage.

　　(3)处理方法

　　(3) Handling method

　　①燃气发电机组运转时，从排气管排出大量蓝白色烟，机油加油口有油烟冒出，此现象说明活塞、活塞环与气缸套磨损严重，机油大量窜入燃烧室内，应及时更换活塞环或气缸套。

　　① When the gas generator set is running, a large amount of blue and white smoke is discharged from the exhaust pipe, and oil fumes are emitted from the oil filling port. This phenomenon indicates that the piston, piston ring, and cylinder liner are severely worn, and a large amount of oil enters the combustion chamber. The piston ring or cylinder liner should be replaced in a timely manner.

　　②若有机油从飞轮边缘甩出或从油底壳后端向外滴出，应停机后用破布将曲轴后轴承盖 或油底壳后端擦干净，然后开机并仔细观察，如从曲轴轴颈处向外流油，为曲轴后油封漏油；从油底壳后端向外流油，为油底壳与曲轴箱密封不严或连接螺钉松动所致；凸轮轴后端盖密封不严漏油，在凸轮轴后端盖处的曲轴上端由缸体向下流油；机油从曲轴皮带轮甩出， 说明正时齿轮室盖油封磨损、损坏或装置不当而漏油；其他各衬垫或管子接头松动、破裂等而漏油，从外表可以看出有漏油的油迹。应检査油封、衬垫等是否破裂，各连接处螺钉或管 接头是否松动等。

　　② If oil is thrown out from the edge of the flywheel or drips outwards from the rear end of the oil pan, the crankshaft rear bearing cover or the rear end of the oil pan should be wiped clean with a rag after stopping the machine, and then the machine should be turned on and carefully observed. If oil flows outwards from the crankshaft journal, it is due to oil leakage from the crankshaft rear oil seal; Oil flows outward from the rear end of the oil pan, which is caused by poor sealing between the oil pan and the crankcase or loose connecting screws; The rear end cover of the camshaft is not tightly sealed and leaks oil. Oil flows downwards from the cylinder block at the upper end of the crankshaft at the rear end cover of the camshaft; The oil is thrown out from the crankshaft pulley, indicating that the timing gear chamber cover oil seal is worn, damaged, or improperly installed, resulting in oil leakage; Other gaskets or pipe joints are loose, broken, etc., causing oil leakage, and oil stains can be seen from the appearance. Check whether the oil seal, gasket, etc. are broken, and whether the screws or pipe joints at each connection are loose.

　　17.起动机不能转动

　　17. The starter cannot rotate

　　(1)故障现象。发电机组的电起动钥匙转到起动位置，起动按钮已按下，起动电动机不能转动，燃气发电机组未能起动。

　　(1) Fault phenomenon. The electric starting key of the generator set has been turned to the starting position, the starting button has been pressed, the starting motor cannot rotate, and the gas generator set cannot be started.

　　（2）原因分析

　　(2) Cause analysis

　　①电起动系统连接线，如电起动钥匙、起动开关、电磁开关、起动电动机及蓄电池等相 互之间的连接线，接触不良，甚至断线，起动电动机定、转子绕组无电流通过，起动电动机不能转动。

　　① The connecting wires of the electric starting system, such as the electric starting key, starting switch, electromagnetic switch, starter motor, and battery, have poor contact or even breakage. The stator and rotor windings of the starter motor have no current passing through, and the starter motor cannot rotate.

　　②电磁开关接触不良。电磁汗关触头吸合时通过触头的电流很大，如果触头接触不良或 电磁开关线圈失电、开关内使触头退回的弹簧拉力不足，都会使触头烧蚀，导致电磁开关的动触头和静触头接触不良甚至无接触，起动电动机未通过电流而不能转动。

　　② Poor contact of electromagnetic switch. When the electromagnetic sweat switch contacts are pulled in, the current passing through the contacts is very high. If the contacts have poor contact or the electromagnetic switch coil loses power, or the spring tension inside the switch that causes the contacts to retract is insufficient, it will cause the contacts to burn out, resulting in poor or even no contact between the moving and stationary contacts of the electromagnetic switch. The starting motor cannot rotate without passing current.

　　③电刷接触不良。起动电动机是一种直流串激式电动机，在换向器上均布有电刷。当电刷与换向器接触不良，或电刷被卡在刷握内，电起动系统电路不通电，起动电动机不能转动。

　　③ Poor contact of the electric brush. The starter motor is a DC series excited motor with brushes evenly distributed on the commutator. When the contact between the electric brush and the commutator is poor, or the electric brush is stuck in the brush holder, the electric starting system circuit is not powered, and the starting motor cannot rotate.

　　④起动电动机绕组短路。定子绕组短路时未能建立磁场或磁场削弱.电枢绕组短路时未 能产生电动力或电动力不足，都不能使起动电动机转动。

　　④ The winding of the starter motor is short circuited. Failure to establish magnetic field or magnetic field weakening during stator winding short circuit When the armature winding is short circuited, the failure to generate electric force or insufficient electric force cannot cause the starter motor to rotate.

　　⑤蓄电池放电过度或充电不足，使起动电动机得不到足够的直流电压而不能转动。

　　⑤ Excessive discharge or insufficient charging of the battery causes the starter motor to not receive sufficient DC voltage and cannot rotate.

　　(3)处理方法

　　(3) Handling method

　　①用万用表检查各段连接线，对断线处予以接通。同时检査各接点接触情况，对接触不良的应用砂布擦净后再连接。对连接螺栓松动的，应予以拧紧。

　　① Use a multimeter to check the connecting wires of each section and connect the broken wires. At the same time, check the contact status of each contact point, and apply sandpaper to clean the poor contact before connecting. Loose connecting bolts should be tightened.

　　②检查电磁开关接触情况，触点烧蚀的应用砂布砂磨，弹簧拉力不足的应更换弹簧。

　　② Check the contact condition of the electromagnetic switch. If the contact is burned, use sandpaper to grind it. If the spring tension is insufficient, replace the spring.

　　③若电刷与换向器接触面太小引起它们接触不良，则应重新研磨电刷圆弧面，使其与换向器的接触面不少于电刷横截面的75%。电刷被卡在刷握的，应用砂布擦净刷握内壁。若电刷与刷握配合过紧，可适当磨小电刷侧面尺寸，使电刷在刷握内能上下滑动。

　　③ If the contact surface between the electric brush and the commutator is too small and causes poor contact, the circular arc surface of the electric brush should be re ground so that its contact surface with the commutator is not less than 75% of the cross-sectional area of the electric brush. The electric brush is stuck in the brush holder, and the inner wall of the brush holder should be wiped clean with a sandpaper. If the brush is too tightly matched with the brush holder, the side size of the brush can be appropriately ground down to allow the brush to slide up and down inside the brush holder.

　　④按绕组短路检査法査找起动电动机定子和电枢绕组短路点，修复短路点，无法修复的应换新绕组，并进行浸绝缘漆、烘干处理。不具备条件时，应换上同型号、规格的起动电动机。

　　④ According to the winding short circuit inspection method, locate the short circuit points of the stator and armature windings of the starter motor, repair the short circuit points, replace the windings that cannot be repaired, and apply insulation paint and drying treatment. When the conditions are not met, a starting motor of the same model and specification should be replaced.

　　⑤发电机组起动时，蓄电池电压大幅度下降，均表明蓄电池充电不足，应换已充足电的蓄电池，或对原蓄电池充电后再使用。

　　⑤ When the generator set starts, a significant drop in battery voltage indicates insufficient charging of the battery. It is recommended to replace the battery with a fully charged one or charge the original battery before use.

　　18.起动机空转正常，但无力起动燃气发电机组

　　18. The starter is idling normally, but it is unable to start the gas generator set

　　(1)故障现象。按下起动开关，起动机转得很慢且无力，起动不了燃气发电机组。

　　(1) Fault phenomenon. Press the start switch, the starter motor rotates slowly and weakly, and cannot start the gas generator set.

　　(2)原因分析。起动机空转正常，但无力起动燃气发电机组，主要是由蓄电池电压不足和起动机内部故障等引起的。

　　(2) Cause analysis. The starter is idling normally, but it is unable to start the gas generator set, mainly caused by insufficient battery voltage and internal faults of the starter.

　　①蓄电池充电不足或接头松动，桩头(接线柱）太脏。

　　① The battery is not fully charged or the connector is loose, and the pile head (terminal) is too dirty.

　　②起动电动机开关触点烧蚀，接触不良。

　　② The switch contacts of the starter motor are burnt and have poor contact.

　　③起动机故障。主要有轴承间隙过紧或过松；电枢轴弯曲而刮碰磁极；整流子烧蚀严重、失圆或油污太多；电刷磨损严重，弹簧过软；磁极线圈或电枢线圈有短路处；燃气发电机组搭铁不良；燃气发电机组温度过高或过低等，引起转动阻力过大。

　　③ Starter motor malfunction. Mainly due to the bearing clearance being too tight or too loose; The armature shaft bends and scratches the magnetic pole; Severe erosion, roundness loss or excessive oil contamination of the rectifier; The electric brush is severely worn and the spring is too soft; There is a short circuit in the magnetic pole coil or armature coil; Poor grounding of gas generator set; The temperature of the gas generator set is too high or too low, causing excessive rotational resistance.

　　(3)处理方法

　　(3) Handling method

　　①先检査蓄电池电压是否正常，若电压不正常应充电或换用电压正常的蓄电池。检査蓄电池连接导线接头是否松动、桩头是否过脏，如接头松动应拧紧，桩头过脏应清洁或去除氧化物，以保证接触良好。桩头接触不好，按下起动开关时，用手触摸其导线，会有过热的感觉。

　　① First, check if the battery voltage is normal. If the voltage is abnormal, charge or replace it with a battery with a normal voltage. Check whether the battery connection wire joints are loose and whether the pile heads are too dirty. If the joints are loose, they should be tightened. If the pile heads are too dirty, they should be cleaned or oxide removed to ensure good contact. Poor contact at the pile head, when pressing the start switch and touching its wires with your hand, there may be a feeling of overheating.

　　②经以上处理，若起动机转动仍无力，可用螺丝刀将起动开关接线柱接通，若起动机转动有力，应检査开关触点是否烧蚀而导电不良，若触点烧蚀应更换。

　　② After the above processing, if the starter still fails to rotate, a screwdriver can be used to connect the starter switch terminal. If the starter rotates strongly, the switch contacts should be checked for erosion and poor conductivity. If the contacts are eroded, they should be replaced.

　　③经过上面检査，起动机仍转动无力，则故障在起动机内部，应分解检査，并进行有针对性的处理。

　　③ After the above inspection, if the starter still fails to rotate, the fault lies inside the starter. It should be disassembled for inspection and targeted treatment should be carried out.

　　19.起动机空转

　　19. Starter idling

　　(1)故障现象。按下起动开关时，只听到起动机旋转声，但燃气发电机组曲轴不动，即起动传动装置不能把起动电动机电枢转矩传到燃气发电机组飞轮齿圈。

　　(1) Fault phenomenon. When the start switch is pressed, only the sound of the starter motor rotating is heard, but the crankshaft of the gas generator set does not move, that is, the starting transmission device cannot transmit the armature torque of the starter motor to the flywheel ring gear of the gas generator set.

　　(2)原因分析

　　(2) Cause analysis

　　①蓄电池电压过低，使进人起动电动机的电流不足以使电枢移动到啮合位罝。

　　① The battery voltage is too low, causing insufficient current to enter the starting motor and move the armature to the meshing position.

　　②电磁开关拉杆调整过长，使拨叉行程缩短，不能把起动齿轮推到啮合位置。

　　② The adjustment of the electromagnetic switch lever is too long, which shortens the travel of the shift fork and cannot push the starting gear to the meshing position.

　　③起动齿轮或飞轮齿圈齿磨损严重或损坏。

　　③ The starting gear or flywheel ring gear teeth are severely worn or damaged.

　　④起动齿轮与飞轮齿圈端面间隙过大，起动机与燃气发电机组飞轮中心线不平行，使齿轮无法啮合。

　　④ The clearance between the starting gear and the end face of the flywheel ring gear is too large, and the centerline of the starter and the flywheel of the gas generator set are not parallel, which makes it impossible for the gears to mesh.

　　⑤开关触点接触时间调整不当。

　　⑤ Improper adjustment of switch contact time.

　　⑥摩擦离合器打滑或减震弹簧损坏。

　　⑥ Friction clutch slipping or damaged shock absorber spring.

　　(3)处理方法

　　(3) Handling method

　　①检査蓄电池电压是否正常，若不正常应充电或换用电压正常的蓄电池。

　　① Check if the battery voltage is normal. If it is not normal, charge or replace it with a battery with normal voltage.

　　②若电磁开关拉杆调整过长引起起动机空转，应调整拉杆至符合要求。

　　② If the adjustment of the electromagnetic switch lever is too long and causes the starter to idle, the lever should be adjusted to meet the requirements.

　　③起动齿轮、齿圈齿磨损严電或损坏时应更换。

　　③ When the starting gear and ring gear are worn or damaged, they should be replaced.

　　④起动齿轮与飞轮齿圈端面间隙应调整至符合要求，并使起动机与飞轮中心线平行，以 保证啮合良好。

　　④ The clearance between the starting gear and the end face of the flywheel ring gear should be adjusted to meet the requirements, and the starter should be parallel to the centerline of the flywheel to ensure good meshing.

　　⑤若按下起动开关，在拨叉使起动齿轮到达飞轮齿圈之前，开关触点就已接触通电，说明通电过早。可将起动机拨叉上的顶杆锁紧螺帽松开，将顶杆退回少许再试，直到合适 为止。

　　⑤ If the start switch is pressed and the switch contacts are already energized before the fork reaches the flywheel ring gear, it indicates that the energization is too early. You can loosen the locking nut of the top rod on the starter fork, retract the top rod slightly and try again until it is suitable.

　　⑥摩擦离合器因使用时间过久，磨损严重引起打滑，应换上新摩擦片。减震弹簧损坏时应更换。

　　⑥ The friction clutch may slip due to prolonged use and severe wear, and new friction plates should be replaced. When the shock absorber spring is damaged, it should be replaced.

　　20.起动机齿轮不能与飞轮齿圈啮合

　　20. The starter gear cannot mesh with the flywheel ring gear

　　(1)故障现象。起动时起动机齿轮不能与飞轮齿圈啮合，同时发出强烈的打齿声。

　　(1) Fault phenomenon. When starting, the starter gear cannot mesh with the flywheel ring gear and emits a strong rattling sound.

　　(2)原因分析

　　(2) Cause analysis

　　①起动开关触点调整不当。

　　① Improper adjustment of the starting switch contacts.

　　②起动齿轮或飞轮齿圈牙齿磨损严重或损坏。

　　② The teeth of the starting gear or flywheel ring gear are severely worn or damaged.

　　③起动齿轮与飞轮齿圈端面间隙过大，起动机与飞轮中心线不平，使齿轮啮合不良。

　　③ The clearance between the starting gear and the flywheel ring gear end face is too large, and the centerline of the starter and flywheel is uneven, resulting in poor gear meshing.

　　(3)处理方法

　　(3) Handling method

　　①将拨叉上的顶杆锁紧螺帽松开，将顶杆退回少许检试，直到触点接触合适为止。

　　① Loosen the locking nut of the top rod on the fork, retract the top rod slightly for inspection until the contact point contacts properly.

　　②起动齿轮、飞轮齿圈牙齿磨损严重或损坏时，应及时更换起动齿轮或飞轮齿圈。

　　② When the teeth of the starting gear or flywheel ring gear are severely worn or damaged, they should be replaced in a timely manner.

　　③起动齿轮与飞轮齿圈端面间隙过大时，应调整至符合要求。起动机与飞轮中心线不平行时，可通过调整使其平行，以保证啮合良好。

　　③ When the clearance between the starting gear and the flywheel ring gear end face is too large, it should be adjusted to meet the requirements. When the centerline of the starter and flywheel are not parallel, they can be adjusted to be parallel to ensure good engagement.

　　21.发电机组运行中不能对蓄电池充电

　　21. The generator set cannot charge the battery during operation

　　(1)故障现象。发电机组在运行过程中，充电电流表指示为0,用万用表直流电压挡检测蓄电池正、负极，端电压低于蓄电池的工作电压。停机后再起动，燃气发电机组不能起动。

　　(1) Fault phenomenon. During the operation of the generator set, the charging ammeter indicates 0, and a multimeter is used to detect the positive and negative terminals of the battery in the DC voltage range. The terminal voltage is lower than the working voltage of the battery. After shutting down and restarting, the gas generator set cannot be started.

　　(2)原因分析

　　(2) Cause analysis

　　①三角皮带磨损或张紧力不足。机组运行时，充电发电机由轴端的三角皮带轮通过三角皮带带动而旋转发电，皮带磨损或张紧力不足时，则充电发电机转速不够，发出的电压太低，当电压低于蓄电池电压时，就不能对蓄电池充电。

　　① The V-belt is worn or the tension is insufficient. When the unit is running, the charging generator is driven by the triangular belt pulley at the shaft end to rotate and generate electricity through the triangular belt. When the belt is worn or the tension is insufficient, the speed of the charging generator is not enough, and the voltage emitted is too low. When the voltage is lower than the battery voltage, the battery cannot be charged.

　　②充电发电机是一台磁场在定子、感应电压在电枢的转枢式三相发电机，三相交流电经三相整流桥全波整流后为蓄电池充电。若整流二极管击穿，定子磁场绕组或电枢绕组断路、短路，充电发电机就发不出电或电压极低，不能对蓄电池进行充电。

　　② A charging generator is a pivot type three-phase generator with a magnetic field in the stator and induced voltage in the armature. The three-phase AC power is fully rectified by a three-phase rectifier bridge to charge the battery. If the rectifier diode breaks down, the stator magnetic field winding or armature winding will open or short-circuit, and the charging generator will not be able to generate electricity or the voltage will be extremely low, making it impossible to charge the battery.

　　③充电电路断线，使充电发电机发出的电不能输给蓄电池。

　　③ The disconnection of the charging circuit prevents the electricity generated by the charging generator from being transmitted to the battery.

　　(3)处理方法

　　(3) Handling method

　　①停机，检查三角皮带的松紧程度，若太松，适当拉开充电发电机与燃气发电机组轴端皮带轮的距离，使皮带有足够的张紧力。若三角皮带损坏，应更换。

　　① Stop the machine and check the tightness of the V-belt. If it is too loose, pull the distance between the charging generator and the gas generator shaft pulley appropriately to ensure that the belt has sufficient tension. If the V-belt is damaged, it should be replaced.

　　②用万用表逐个检査整流二极管的正、负极，若全通或全断.表明该二极管已损坏，应换上同型号、规格的元件。检査充电发电机定子磁极绕组和电枢绕组，断路的予以接通，短路的应修理，不能修理的应更换绕组或更换充电发电机。

　　② Use a multimeter to check the positive and negative terminals of the rectifier diode one by one, and if they are all on or off Indicates that the diode is damaged and should be replaced with a component of the same model and specification. Inspect the stator magnetic pole winding and armature winding of the charging generator. If there is an open circuit, connect it. If there is a short circuit, repair it. If it cannot be repaired, replace the winding or the charging generator.

　　③用万用表逐段检査充电回路的通或断，对断线处予以接通。

　　③ Use a multimeter to check the continuity or disconnection of the charging circuit section by section, and connect the disconnected parts.

　　22.蓄电池充电电流不稳定

　　22. Unstable charging current of battery

　　(1)故障现象。燃气发电机组达额定转速时，充电电流表指针不稳定，电流指示值忽大忽小。

　　(1) Fault phenomenon. When the gas generator set reaches its rated speed, the charging ammeter pointer is unstable and the current reading fluctuates.

　　(2)故障原因

　　(2) Reason for malfunction

　　①充电发电机电刷脏污或电刷压力不足，电刷与集电环接触不良，时而接触好时而接触不好，输出电压忽高忽低。

　　① The electric brush of the charging generator is dirty or the pressure of the electric brush is insufficient. The contact between the electric brush and the collector ring is poor, sometimes good and sometimes bad, and the output voltage fluctuates.

　　②整流二极管压装处松动，引起整流二极管时而导通良好时而导通不良，输出电压忽高忽低。

　　② The loose installation of the rectifier diode causes the rectifier diode to conduct well and poorly, resulting in fluctuating output voltage.

　　③充电发电机传动皮带松动、打滑，充电发电机转速不稳，导致输出电压忽高忽低。

　　③ The transmission belt of the charging generator is loose and slipping, and the speed of the charging generator is unstable, resulting in fluctuating output voltage.

　　④充电发电机调节器触头接触不良，调节器输出电压不能保持在规定范围内，使输出电压不稳。

　　④ The contact of the charging generator regulator is poor, and the output voltage of the regulator cannot be maintained within the specified range, resulting in unstable output voltage.

　　(3)处理方法

　　(3) Handling method

　　①用酒精或汽油擦洗集电环与电刷接触面污物；若电刷上的弹黄压力太小，应换上压力足够大的弹簧，保持电刷与集电环接触良好，使充电发电机输出电压稳定。

　　① Clean the dirt on the contact surface between the collector ring and the electric brush with alcohol or gasoline; If the rebound pressure on the electric brush is too small, a spring with sufficient pressure should be replaced to maintain good contact between the electric brush and the collector ring, so as to stabilize the output voltage of the charging generator.

　　②用万用表检査整流二极管的正、反向电阻，若万用表指示的电阻值不稳定，表明该二极管内部接触不良，应换上同型号、规格的元件。

　　② Use a multimeter to check the forward and reverse resistance of the rectifier diode. If the resistance value indicated by the multimeter is unstable, it indicates poor internal contact of the diode and should be replaced with a component of the same model and specification.

　　③应调整安装充电发电机的支架位使皮带松紧度适中，使充电发电机转速稳定。

　　③ The bracket position for installing the charging generator should be adjusted to ensure moderate tightness of the belt and stable speed of the charging generator.

　　④检査调节器触头是否脏污，脏污应擦洗干净。检查调节器触头是否烧毛，若烧毛应予修平，使之接触良好。检查各动、静触头的间隙是否太大，若太大应适当调小。

　　④ Check whether the regulator contacts are dirty, and clean them thoroughly. Check if the regulator contacts are burnt. If burnt, they should be leveled to ensure good contact. Check if the gap between the moving and stationary contacts is too large, and if it is too large, adjust it appropriately.

　　23.充电发电机对蓄电池充电电流太大

　　23. The charging generator charges the battery with too much current

　　(1)故障现象。机组在运行中充电电流表指示值太大，持续的大电流充电时，蓄电池因电解液温度过高而失效。

　　(1) Fault phenomenon. The charging ammeter reading of the unit is too high during operation, and the battery fails due to high electrolyte temperature during continuous high current charging.

　　(2)原因分析

　　(2) Cause analysis

　　①机组转速太高，充电发电机电压太高，导致充电电流太大。

　　① The unit speed is too high, and the voltage of the charging generator is too high, resulting in excessive charging current.

　　②电压调节器故障.当充电发电机输出电压超过规定值时，不能对充电发电机输出电压 进行调节，充电发电机持续输出高电压，使充电电流降不下来。

　　② Voltage regulator malfunction When the output voltage of the charging generator exceeds the specified value, the output voltage of the charging generator cannot be adjusted. The charging generator continues to output high voltage, which prevents the charging current from decreasing.

　　(3)处理方法

　　(3) Handling method

　　①降低机组转速至额定值，使充电发电机输出电压降至规定值范围。

　　① Reduce the unit speed to the rated value to lower the output voltage of the charging generator to the specified range.

　　②用万用表检査电压调节器回路各段有否断线，线圈有否匝间短路，断路的予以接通，匝间短路的应修复或换上新线圈。检查电压调节器的动触头与定触头有否烧毛，烧毛的予以修复。

　　② Use a multimeter to check if there are any broken wires in each section of the voltage regulator circuit, and if there is a short circuit between turns in the coil. If there is a short circuit between turns, it should be connected. If there is a short circuit between turns, it should be repaired or replaced with a new coil. Check if the moving and fixed contacts of the voltage regulator are burnt, and repair any burnt ones.

　　24.蓄电池容置降低

　　24. Decreased battery capacity

　　(1)故障现象。蓄电池充电后使用时间不长即电量不足，起动机转动无力，起动燃气发电机组困难。

　　(1) Fault phenomenon. After charging the battery for a short period of time, the battery runs low, causing the starter to turn weakly and making it difficult to start the gas generator set.

　　(2)原因分析

　　(2) Cause analysis

　　①蓄电池储存过久，极板硫化、氧化严重，而在初充电时又没有进行充、放电循环，致使蓄电池达不到额定容量。

　　① The battery has been stored for too long, causing severe sulfurization and oxidation of the plates, and there has been no charge discharge cycle during initial charging, resulting in the battery not reaching its rated capacity.

　　②充电发电机调节器电压调整过低，使蓄电池经常充电不足，而长期处于放电状态。或蓄电池接线柱经常受到敲击，使接线柱与极板连接处断裂而增大充电电阻。

　　② The voltage adjustment of the charging generator regulator is too low, causing the battery to frequently be undercharged and remain in a discharged state for a long time. Or the battery terminal is often struck, causing the connection between the terminal and the electrode plate to break and increasing the charging resistance.

　　③蓄电池每单格的电压低于1.5V，而又长时间经常使用起动机，造成大电流放电并使极板损坏。

　　③ The voltage of each battery cell is below 1.5V, and frequent use of the starter for a long time causes high current discharge and damage to the electrode plates.

　　④蓄电池电解液密度过高或液面过低时，用电解液代替蒸馏水加入蓄电池内，引起极板硫化，造成容量不足，或液面过低使极板露出部分硫化。

　　④ When the electrolyte density of the battery is too high or the liquid level is too low, using electrolyte instead of distilled water to add to the battery can cause the plates to sulfide, resulting in insufficient capacity, or when the liquid level is too low, the exposed parts of the plates may sulfide.

　　⑤充电发电机电压调节器电压调整过高，充电电流过大，引起蓄电池极板物质脱落，而使蓄电池容里不足。

　　⑤ The voltage regulator of the charging generator adjusts the voltage too high, resulting in excessive charging current and causing the material of the battery plates to fall off, leading to insufficient battery capacity.

　　(3)处理方法。用高率放电计检査蓄电池单格电压，若没有高率放电计，可用一般的万用表。按下起动开关，测量每个单格电池的电压，若电压低于1.5V，说明蓄电池容量降低。

　　(3) Handling method. Use a high rate discharge meter to check the cell voltage of the battery. If there is no high rate discharge meter, a general multimeter can be used. Press the start switch and measure the voltage of each individual cell battery. If the voltage is below 1.5V, it indicates a decrease in battery capacity.

　　①初次充电的蓄电池，应检查其极板是否有硫化(出现白色结晶体)现象，若有应及时处理，并经反复充、放电，使容最提高。

　　① For batteries that are being charged for the first time, their plates should be checked for sulfurization (white crystals appearing). If so, they should be dealt with promptly and repeatedly charged and discharged to maximize their capacity.

　　②若是电压调节器电压调得过低应调高，使蓄电池充足电。若是蓄电池接线柱与极板连接处断裂，应及时处理。

　　② If the voltage regulator is set too low, it should be raised to fully charge the battery. If the connection between the battery terminal and the electrode plate breaks, it should be dealt with in a timely manner.

　　③若因蓄电池大电流放电致极板损坏，应更换极板。

　　③ If the electrode plate is damaged due to high current discharge of the battery, it should be replaced.

　　④蓄电池极板硫化时应按以下方法处理：硫化较轻时，可用小电流反复充、放电予以消除。硫化严重，应先将蓄电池以其容量10%的电流放电至终止电压，再将原电解液全部倒出，加入蒸馏水迸行淸洗，然后换上蒸馏水，用初充电电流进行充电。随时测量电解液密度，如密度升到1. 15g/ml以上，可抽出部分电解液，再加蒸馏水，继续充电至密度不再上升。调整电解液密度至1.28g/ml，并进行放电至终止电压。如放电容量能达到额定容量的 80%时，则表示恢复工作基本完成。若放电容量仍很小，则应重复上述方法，直到正常为止。若极板硫化严重，应更换极板。

　　④ The sulfurization of battery plates should be treated according to the following method: when the sulfurization is light, it can be eliminated by repeated charging and discharging with low current. Severe sulfurization, the battery should be discharged to the termination voltage with a current of 10% of its capacity first, then the original electrolyte should be completely poured out and washed with distilled water, and then replaced with distilled water and charged with the initial charging current. Measure the electrolyte density at any time, such as when the density rises to 1 If the concentration is above 15g/ml, a portion of the electrolyte can be extracted and distilled water can be added to continue charging until the density no longer increases. Adjust the electrolyte density to 1.28g/ml and discharge to the termination voltage. If the discharge capacity can reach 80% of the rated capacity, it indicates that the recovery work is basically completed. If the discharge capacity is still very small, the above method should be repeated until it returns to normal. If the electrode plate is severely vulcanized, it should be replaced.

　　⑤若充电发电机电压调节器电压调得过高，应重新调整至符合要求。

　　⑤ If the voltage regulator of the charging generator is set too high, it should be readjusted to meet the requirements.

　　25.蓄电池自行放电

　　25. Self discharge of battery

　　(1)故障现象。蓄电池在使用过程中或存放的情况下，不接通任何用电设备，但容量逐渐减小，严重时燃气发电机组熄火时间较长一点再起动，便感到蓄电池电压不足。当自行放电的速度每天小于蓄电池容量的1%时，诚正常现象，大于此速度，就是自行放电故障。

　　(1) Fault phenomenon. During use or storage, the battery does not connect to any electrical equipment, but its capacity gradually decreases. In severe cases, if the gas generator unit stalls for a longer period of time before restarting, the battery voltage may feel insufficient. When the self discharge speed is less than 1% of the battery capacity per day, it is a normal phenomenon. If it exceeds this speed, it is a self discharge fault.

　　(2)原因分析

　　(2) Cause analysis

　　①蓄电池导线有搭铁、短路处。

　　① The battery wires have grounding and short circuits.

　　②极板之间内部短路，隔板损坏或击穿。

　　② Internal short circuit between the plates, damage or breakdown of the partition.

　　③电解液中含有杂质或杂质在蓄电池底堆积过多而接触极板，引起自行放电。

　　③ Impurities in the electrolyte or excessive accumulation of impurities at the bottom of the battery can contact the electrode plates, causing self discharge.

　　④电解液过多.从蓄电池内溢出，积在盖与接线柱之间，引起自行放电。

　　④ Excessive electrolyte Overflow from the battery and accumulation between the cover and the terminal block, causing self discharge.

　　（3）处理方法。用高率放电计检查蓄电池每个单格电压，记住数值。等几小时后再进行检査，电压有显著降低，说明自行放电。

　　(3) Handling method. Use a high rate discharge meter to check the voltage of each battery cell and remember the values. Wait for a few hours before conducting the inspection. If there is a significant decrease in voltage, it indicates self discharge.

　　①检査蓄电池的导线有无搭铁、短路处，若有应排除。

　　① Check the wires of the battery for any grounding or short circuits, and eliminate them if necessary.

　　②用高率放电计检査蓄电池，开始电压达到某一数值，瞬间后迅速下降，严重时迅速降为零，这是极板之间短路现象。打开蓄电池盖，取出极板，抽出隔板，如隔板有穿孔现象， 说明已短路，应更换。

　　② Use a high rate discharge meter to check the battery. When the initial voltage reaches a certain value, it drops rapidly after an instant, and in severe cases, it quickly drops to zero. This is a short circuit phenomenon between the plates. Open the battery cover, remove the plates, and pull out the partition. If there are perforations in the partition, it indicates a short circuit and should be replaced.

　　③蓄电池电解液中如含有杂质，取出部分电解液.便可看到混浊现象。这时应倒出电解 液，加人蒸馏水清洗后，再加人新配制的电解液，并重新充电。

　　③ If there are impurities in the battery electrolyte, remove a portion of the electrolyte You can see the phenomenon of turbidity. At this point, the electrolyte should be poured out, washed with distilled water, and then refilled with newly prepared electrolyte.

　　④如蓄电池电解液过多应减少，盖与接线柱之间的堆积物应淸除，以免自行放电。

　　④ If there is too much electrolyte in the battery, it should be reduced, and the accumulation between the cover and the terminal should be removed to prevent self discharge.

　　26.蓄电池内电解液消耗过快

　　26. The electrolyte in the battery is consumed too quickly

　　(1)故障现象。电解液正常消耗时，只需15?30天(夏天15天左右，冬天1个月)补加一次蒸馏水就行了。如果蒸馏水添加期缩短，需要经常补加蒸馏水，说明电解液损耗过快。

　　(1) Fault phenomenon. When the electrolyte is consumed normally, only 15 is needed? Just add distilled water once every 30 days (about 15 days in summer and 1 month in winter). If the addition period of distilled water is shortened and it is necessary to frequently add distilled water, it indicates that the electrolyte loss is too fast.

　　(2)原因分析

　　(2) Cause analysis

　　①充电电流过大，充电时间过长，电能电解电解液中的水产生氢气和氧气逸出。过放电也会造成电解液消耗过快。

　　① The charging current is too high and the charging time is too long, causing hydrogen and oxygen to escape from the electrolyte during the electrolysis of electrical energy. Overdischarge can also cause rapid consumption of electrolyte.

　　②蓄电池极板间隔板损坏、击穿或极板短路。

　　② Damage, breakdown or short circuit of the battery plate partition.

　　③蓄电池外壳有裂缝，导致电解液漏出。

　　③ The battery casing has cracks, causing electrolyte leakage.

　　(3)处理方法

　　(3) Handling method

　　①电解液损耗过快的应补加蒸馏水外，对于充电发电机端电压过高的，应仔细调整电压调节器，使充电发电机输出电压保持在规范内。如果长时间多次起动燃气发电机组，会造成过放电，使电解液消耗过快。正常情况下应避免多次重复起动。

　　① If the electrolyte loss is too fast, distilled water should be added. If the voltage at the charging generator terminal is too high, the voltage regulator should be carefully adjusted to maintain the output voltage of the charging generator within the specification. If the gas generator set is started multiple times for a long time, it will cause over discharge and consume the electrolyte too quickly. Under normal circumstances, multiple repeated starts should be avoided.

　　②若没有过充电或过放电现象，可分解蓄电池检査。隔板穿孔短路或极板物质脱落过多，堆积在蓄电池壳底部，造成极板短路等，均会造成电解液中的水分蒸发过快，此时应及时修复，消除短路现象。

　　② If there is no overcharging or overdischarging phenomenon, the battery can be disassembled for inspection. Perforation and short circuit of the partition or excessive detachment of the electrode material, which accumulates at the bottom of the battery case and causes electrode short circuit, can cause rapid evaporation of water in the electrolyte. At this time, it should be repaired in a timely manner to eliminate the short circuit phenomenon.

　　③如果是因为蓄电池外壳破裂，封口胶干裂等造成电解液外漏，应及时补修，并重新调整电解液比重。

　　③ If the leakage of electrolyte is caused by the rupture of the battery casing or the drying of the sealing adhesive, it should be repaired in a timely manner and the electrolyte density should be readjusted.

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