200KW Gas generator set_Shandong Xujiujiu Power Technology Co., Ltd.

Reasons and solution of generator

 Time of issue: : 2021-12--07

The generator is difficult to start. There are dozens of reasons for generator start failure. The following will introduce the reasons that cause the generator to be unable to start or difficult to start。 White smoke from the exhaust pipe when starting Analysis of causes （1）Problems with the ventilation system,wrong valve clearance, valve seal deterioration, the air filter is seriously blocked, forget to pull the decompression handle back （2）Problems with oil supply system, poor diesel quality, water in diesel tank; air in oil road, low pressure oil road blocked, inlet throttle filter blocked, too dirty filter element, tank cover vent blocked, resulting in insufficient oil supply; oil supply time is early or too late. （3）Problems with engine body: cylinder head crack, cylinder pad is installed or burned at the end, causing water directly into the cylinder, such as cylinder, piston and piston ring gap, serious wear or stuck, engine starting device, such as low starting speed,low temperature or low engine temperature ,especially in winter. 2. Find and troubleshoot Generally, first check whether there is air or blockage in the low-pressure oil circuit, check the fuel delivery pump, and then check the high-pressure oil circuit and fuel injection pump. If there is no problem with the above inspection results, then check the fuel injector, ventilation system, crank and connecting rod mechanism, and engine block in turn. Wait. （1）If it is in winter or the starting temperature is particularly low, you can try to heat water into the water tank, or drain the oil from the oil pan, and then pour it back after heating. （2）If it is difficult to start. First, check whether the air filter, fuel filter, and diesel filter are too dirty, and then check the matching clearances, such as the clearances of cylinders, pistons and piston rings, and valve clearances, and then check the fuel injectors and fuel injection pumps. 3.Black smoke rises from the exhaust pipe when startup When the fuel and air mixture burns incompletely and the diesel fuel in the mixture is too rich, the unburned mixture is discharged as black smoke. analysis of causes Problems with the ventilation system: the air filter is blocked, which reduces the air entering the cylinder, and the mixed gas is thick; the valve gap is incorrect, resulting in insufficient intake and unclean exhaust,insufficient spring force of the valve spring or spring break, causing the valve to lea,There is carbon deposit and ablation between the valve and the valve seat, causing the valve to leak. Problems with the fuel supply system: one or more fuel injectors have serious carbon deposits, and the needle valves of the fuel injectors are stuck, resulting in oil dripping or poor atomization quality,insufficient fuel injection pressure, poor diesel atomization quality, and fuel supply ahead of schedule The angle is wrong,the fuel injection pump sprays too much, the quality of diesel is not good. The crank connecting rod mechanism has problems: if the clearance between the cylinder, the piston and the piston ring is too large or the wear is serious, the cylinder pressure is insufficient, and the combustion is incomplete. Find and troubleshoot The fault can be solved by referring to the above method of finding and excluding white smoke.Special attention should be paid to the cylinder-by-cylinder inspection method. Smokeless exhaust pipe when starting analysis of causes Problems with the oil supply system: the oil road is blocked, the oil transmission pump is not working normally, and the oil injection pump is not working normally. 6.Find and troubleshoot （1）If the diesel engine start speed is normal but not fire, or the exhaust pipe is smoke-free, it is a failure of the engine oil supply system.Generally, first check whether the oil road is blocked, check the specific method of the oil road blockage, see the above. （2）If there is occasional intermittent smoke coming out when starting, it means that some cylinders have diesel oil in, and some do not. In this case, the "cut-off method" can be used, that is, to stop the fuel supply of each cylinder and find out that it is not working. Of the cylinder.

Gensets Model	Powe		Engine				Dimensions	Weight
Gensets Model	Rated Power	Standby Power	Engines Model	Power	*BoreStroke**	Ylinden No.	Dimensions	Weight
XSA10NG	10/12.5	11/13.75	XSA2.OD14E200NG	14	85*90	4	14507501100	690
XSA20NG	20/25	22/27.5	XSA3.8D25E200NG	25	100*120	4	16507501250	720
XSA30NG	30/37.5	33/ 41.25	XSA4.2D36E200NG	36	105*125	4	18508201350	780
XSA40NG	40/50	44/55	XSA6.5D50E200NG	50	105*125	6	22008501450	970
XSA50NG	50/62.5	55/68.75	XSA6.5D58E200NG	58	105*125	6	22508501450	1050
XSA60NG	60/75	66/82.5	XSA6.5D66E200NG	66	105*125	6	24008501500	1100
XSA80NG	80 /100	88/110	XSA10D90E200NG	90	126*130	6	265010601650	1650
XSA100NG	100/125	110/137.5	XSA10D110E200NG	110	126*130	6	275010601650	1700
XSA120NG	120/150	132/165	XSA12D136E200NG	136	126*155	6	2970*11501700	2050
XSA150NG	150/187.5	165/206.25	XSA12D170E200NG	170	126*155	6	297011501700	2100
XSA180NG	180/225	198/247.5	XSA12D20OE200NG	200	126*155	6	305012001700	2300
XSA200NG	200/250	220/275	XSA12D238E200NG	238	126*155	6	305012001700	2350
XSA250NG	250/312.5	275/343.75	XSA13D288E200NG	288	127*165	6	320012501750	2700
XSA300NG	300/375	330/412.5	XSA19D330E200NG	330	159*159	6	360013001910	3800
XSA400NG	400/500	440/550	XSA38D460E200NG	460	159*159	12	370015502050	3970
XSA500NG	500/625	550/687.5	XSA161D550E200NG	550	300*380	6	580016002900	18000
XSA600NG	600/750	660/825	XSA215D660E200NG	660	300*380	8	640016002900	22000
XSA700NG	700/875	770/962.5	XSA215D7700E200NG	770	300*380	8	640016002900	22000
XSA1000NG	1000/1250	1100/1375	XSA215D110OE200NG	1100	300*380	8	640016003100	25000

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