When a certain gear of the mine loader does not move or moves slowly, the main drive shaft rotates rapidly and powerfully. When the engine speed is increased, the increase of the speed of the main drive shaft is obviously out of proportion to the front and rear drive shafts. What is the reason? What are the solutions?

空檔及其余檔位變速油壓正常，掛該擋后壓力明顯下降。

The transmission oil pressure in neutral and other gears is normal, and the pressure drops significantly after engaging this gear.

故障原因：

Cause of failure:

1)軸承蓋或尼龍環(huán)嚴(yán)重磨損。

1) The bearing cover or nylon ring is severely worn.

2)如軸承蓋或尼龍環(huán)良好或磨損輕微，則確認(rèn)該檔離合器內(nèi)外封環(huán)密封不良。

2) If the bearing cover or nylon ring is in good condition or slightly worn, confirm that the inner and outer sealing rings of the clutch are poorly sealed.

措施：

Solution:

更換相應(yīng)損壞零件即軸承蓋或尼龍環(huán)、內(nèi)外封封環(huán)，重新調(diào)整軸套與軸承蓋間隙。

Replace the corresponding damaged parts, i.e. bearing cover or nylon ring, inner and outer sealing ring, and readjust the clearance between shaft sleeve and bearing cover.

故障分析：礦用裝載機(jī)某一檔位掛擋行走無力或不行走，可排除變矩器、行走泵、減壓閥等各檔公用油路和部件的問題，故障發(fā)生的部位只能在變速控制閥之后到該檔離合器活塞之間的油路上。

Fault analysis: if a certain gear of the mine loader is unable to move or cannot move in gear, the problems of the common oil circuit and components of each gear such as torque converter, travel pump and pressure reducing valve can be eliminated. The fault can only occur in the oil circuit between the clutch piston of this gear after the variable speed control valve.

軸承蓋、尼龍環(huán)、內(nèi)外封封環(huán)等薄弱部件磨損后，供往離合器活塞腔的油液從磨損部位大量泄漏，從而造成油壓降低。礦用裝載機(jī)掛空擋或其余檔位由于油液不流經(jīng)磨損部位

After the bearing cover, nylon ring, inner and outer sealing rings and other weak parts are worn, the oil supplied to the clutch piston cavity leaks a lot from the worn parts, resulting in the reduction of oil pressure. When the mine loader is in neutral gear or other gears, the oil does not flow through the worn parts