如果怠速時(shí)的主油路油壓高，則說(shuō)明主油壓路調(diào)壓閥或節(jié)氣門閥有故障，可能是調(diào)壓彈簧的預(yù)緊力過(guò)大或閥芯卡滯所致;如果怠速時(shí)主油路油壓正常，但起步進(jìn)擋時(shí)有較大的沖擊，則說(shuō)明前進(jìn)離合器或倒檔及高檔離合器的進(jìn)油單向閥閥球損壞或漏裝。
If the main oil pressure of the main oil road at the idle speed is high, it indicates that the main oil pressure valve or throttle valve has a fault, it may be caused by the excessive pre tightening force of the pressure regulating spring or the stagnation of the valve core; if the oil pressure of the main oil road is normal at the idle speed, but there is a great impact on the starting gear, it will indicate the oil intake of the forward clutch or the upside clutch and the upscale clutch. Damage or leak to the valve ball.
裝用自動(dòng)變速箱的汽車的發(fā)動(dòng)機(jī)怠速一般為750r/min左右。若怠速過(guò)高，應(yīng)按標(biāo)準(zhǔn)予以調(diào)整。
The idling speed of a car equipped with automatic transmission is about 750r/min. If the idle speed is too high, it should be adjusted according to the standard.
濟(jì)南自動(dòng)變速箱維修
檢測(cè)換擋時(shí)的主油壓路。正常情況下，換擋時(shí)的主油路壓會(huì)有瞬間時(shí)的下降。如果換擋時(shí)主油路油壓沒(méi)有下降，則說(shuō)明減震器活塞卡滯。
Test the main oil pressure road in the shift. Under normal circumstances, the main oil pressure shift will drop instantly. If there is no drop in the main oil pressure when shifting, then the piston of the shock absorber is stuck.
如果有升檔過(guò)遲的現(xiàn)象，說(shuō)明換擋沖擊大的故障時(shí)升檔過(guò)遲導(dǎo)致。如在升檔之前發(fā)動(dòng)機(jī)轉(zhuǎn)速異常升高，導(dǎo)致在升檔的瞬間有較大的換擋沖擊，則說(shuō)明離合器或制動(dòng)器打滑，應(yīng)分解自動(dòng)變速箱，進(jìn)行維修。
If there is a phenomenon of too late lifting, it means that the failure of the gear shift is too late. If the engine speed increases before the lift is raised, it causes a larger shift impact at the moment of lifting the gear, indicating that the clutch or brake is skidding and the automatic transmission should be decomposed to carry out maintenance.
電子控制自動(dòng)變速箱如果出現(xiàn)換擋沖擊故障，應(yīng)檢查油壓電磁閥的線路以及油壓電磁閥工作是否正常、電腦是否在換擋瞬間向油壓電磁閥發(fā)出控制信號(hào)，如線路故障，應(yīng)修復(fù);如果電磁閥損壞，應(yīng)更換電磁閥。
If there is a shift impact failure in the electronic control automatic transmission, check the line of the hydraulic pressure solenoid valve and the normal work of the oil pressure solenoid valve, whether the computer will send out the control signal to the oil pressure solenoid valve at the moment of shift, such as the fault of the line, if the solenoid valve is damaged, the solenoid valve should be replaced.
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