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Products
Cummins diesel engine oil pump


Detailed Description:

Cummins diesel engine oil pump physical map and parameter models are for reference only: For specific price models, please contact our sales online customer service,

Rixing Power Technology direct sales Cummins KTA19-G2, KTA19-G3, KTA19-G4, KTAA19-G6A, KTA19-G8, NTA855-G1, NTA855-G2, NTA855-G3, NTA855-G2A, NTA855-G4, NT855- GA, KTA38-G2, KTA38-G3, KTA38-G5, KTA50-G1, KTA50-G2, KTA50-G3, KTA50-G9A, KTA50-GS8, MTA11-G3, MTAA11-G3, 6CTA8.3-G2, 6CTAA8. 3G2, 6LTAA8.9G2, 6BTAA5.9G2, 6BTA5.9G2, 6BT5.9G2, 4BTA3.9G2, 4BT3.9G2, 4B3.9G2, VTA28G5, VTA28G6, QSZ13-G2, QSZ13-G3, QSK38-G5, QSL19G5, QSX15G6 QSX15G8, QSK23G3, QST30G3, QST30G4, QSK60G3, QSK60G4, QSK19G3; QSK78 Dongfeng Cummins diesel oil pump, Chongqing Cummins diesel oil pump, American Cummins diesel oil pump,

Cummins diesel engine oil pump: Cummins oil pump assembly 4003950, Cummins oil pump 3042378, Cummins 3803369 oil pump, Cummins NTA855-GENDR (465) oil pump 3609833,

Cummins 3068460 oil pump, Cummins NTA855-P425 oil pump 3821579, Cummins 5258153 high pressure oil pump, Cummins 4941011 high pressure oil pump, Cummins 4900567 oil pump, A2300 oil pump,

Cummins oil pump 3634640, Cummins oil pump 3047549, Cummins NTA855-GENDR (465) oil pump 3609829, Cummins L10-260 oil pump 3895756, Cummins KTA38-G2 oil pump AR12387,

Cummins L10G3.GEN.DR (330) oil pump 4003950, Cummins NT855-C280 oil pump 3042378, Cummins NT855-C280 oil pump AR9835, Cummins NTA855-P425 oil pump 3821578,

Cummins ISX-450ST oil pump 4026691, Dongfeng truck engine parts oil pump AR12387, KT38M Cummins oil pump cover gasket 205532, Cummins generator oil pump 3821579,

Chongqing Cummins oil pump 4003950, Cummins accessories NTA855M350 oil pump, bulldozer accessories Cummins diesel oil pump 4939587, bulldozer Cummins diesel oil pump 3941742,

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Cummins Crane Parts Diesel Engine Oil Pump 3918212, Cummins Crane Parts Diesel Engine Oil Pump 3914006, Cummins Traction Motor Grader Diesel Engine Oil Pump 3901175,

Cummins large truck parts engine oil pump 4939585, Cummins truck engine oil pump 3937027, Cummins city bus engine oil pump 3930336,

Cummins engine oil pump 3926202 for Dongfeng trucks, Cummins engine oil pump 3924719 for Red Rock car parts, Cummins engine oil pump 3918211 for Dongfeng dump trucks, Cummins engine oil pump 3914005 for m11 passenger cars,

Cummins Zhongtong bus parts engine oil pump 3904413, Cummins oil pump price M11 oil pump 3803379, Chongqing Cummins diesel engine parts M11 oil pump 3803330,

M11 Cummins large-scale diesel engine maintenance oil pump 3401186, Beijing Cummins Automotive Engine Oil Pump Gear 205055, Cummins Engine Oil Pump AR10588, Cummins Engine Oil Pump Assembly Gear 3014965,

Chongqing Cummins diesel engine oil pump gear 3014292, imported Cummins diesel engine oil pump oil seal 3042759, Cummins oil pump diesel engine 3047549 oil pump, Cummins bulldozer NT855 diesel engine oil pump 3042378,

Cummins generator 3634640 diesel engine oil pump, Cummins engine oil pump 4941464, Cummins diesel engine oil pump 3966840, Cummins oil pump cover gasket 3014778, Cummins oil pump gasket 203145,

Cummins parts 205061 oil pump, marine Cummins diesel oil pump drive gear 204832, grader KTA19 Cummins oil pump gear 3049543, excavator Cummins parts oil pump gasket 3031434,

Cummins oil pump gear 3045622, 6c8.3 Cummins accessories 3800828 oil pump, Cummins NTA855 diesel oil pump 360983, Cummins diesel oil pump 206771, Komatsu Cummins oil pump 212767,

Imported Cummins diesel engine parts marine oil pump 3895756, Cummins diesel generator 500kw gasket 177422, Chongqing Cummins engine parts oil pump 3280510, American Cummins oil pump 3901384, Chongqing Cummins automobile 207252 diesel engine parts oil pump, Cummins NTA855 oil pump parts 3928870,

Cummins diesel engine oil pump repair after repair

1. Repair of Cummins diesel gear oil pump main shaft and bushing after wear

Due to the weight of the main gear of the oil pump and the radial thrust generated when the passive gear meshes, it is easy to cause eccentric wear of the shaft and the bushing hole, and the gap is increased. Therefore, the oil will leak due to the increase of the gap during work, and the oil supply will decrease.

After the main shaft and the bush are worn, the journal or bushing can be used to restore the fit clearance. When the journal wear is slight, it is only necessary to press out the old bushing and replace it with a new bushing, and the shaft is generally not repaired, so that the fit clearance can be restored to the allowable range. When the shaft and the bush are very worn, and the mating clearance increases greatly, not only the bushing must be replaced, but the shaft should also be chrome-plated or vibration surfacing to increase the diameter, and then ground to the standard size to restore the journal and Matching requirements of bushings.

2. Repair of pump casing inner cavity and gear teeth after wear

After the inner cavity of the pump casing and the gear teeth are worn, it has a great impact on the amount of pump oil. When the shaft and the bushing or the shaft hole are severely worn, the tooth top and the surface of the inner cavity of the pump housing will have an undesired contact during work. Because the pressure of the oil outlet cavity is higher than the pressure of the oil inlet cavity, under the pressure difference, the top of the tooth contacts the oil inlet cavity of the pump casing more. Therefore, the inner cavity of the pump casing wears more here, which makes the inner cavity and the teeth The top gap increases. As a result, the pressure difference between the oil pump inlet and outlet chambers is reduced, the gear tooth scraping and oil pressure reduction is reduced, the oil supply pressure is reduced, and the pump oil volume is reduced. The wear of the inner cavity of the pump casing is generally repaired by the inner cavity insert method.

Secondly, due to the wear of the gear teeth in the tooth thickness direction, the meshing gap between the main and passive gears is increased. Its wear feature is heavy unilateral wear, so it can be used by turning the gear 180 degrees.

3. Repair after the wear of gear end face and pump cover

There is a certain gap between the end face of the gear and the inner plane of the pump cover, which is called the end face gap. The wear of the contact surface between the gear end face and the inner surface of the pump cover during work will increase the gap between the end faces. When the limit is exceeded, it will have a significant impact on the amount of pump oil.

When the end face of the gear is worn, the end face can be ground and the disintegrated surface of the oil pump casing can be ground at the same time to ensure that the end face clearance of the pump is within the required range.

The main components of the lubrication system

1. Oil pump: Gear pumps are used on Cummins engines to provide pressure to the lubrication system

The N engine oil pump is installed at the front end of the body of the PT pump. It is a single-stage gear pump equipped with a high-pressure bypass valve. The oil pump is driven by the engine transmission gear train.

The K6 and M11 engine oil pumps are installed in the gear room at the front of the body. The K6 oil pump is equipped with a pressure regulating valve and is driven by the engine transmission gear train.

The KV engine oil pump is installed in the oil pan at the lower part of the body, and is a two-pole gear pump driven by a ring gear embedded in the rear section of the crankshaft.

K6 engine pressure regulator: installed on the oil pump.

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