What Are The Major Tips For Installing The Oil Pressure Switch?

- Oct 27, 2017 -

What are the major tips for installing the Oil Pressure Switch?
Hydraulic switchgear several key are as follows:
First, the pressure of connecting rod copper sets. Device connecting rod copper sleeve is best to use the press, but also by virtue of the vise, should not hammer with a hammer; Oil Pressure Switch copper sleeve on the oil hole or groove and connecting rod on the oil hole to be aligned to ensure its smooth; After the copper sleeve is pressed, the ends of the two ends of the connecting rod should be flat.
Second, the installation of hydraulic switches and Oil Pressure Switch connecting rod. When installing hydraulic switches and connecting rods, observe their relative orientation and direction. The big end of the connecting rod is cut flat, the vortex groove of the piston should be the same side of the big end of the connecting rod; the big end of the connecting rod is cut oblique, and the vortex groove at the top of the piston should Oil Pressure Switch be cut with the same side, Piston top with a pointed end, should be to the fuel pump side.
Third, clever installed piston pin. Piston pin and pin hole for the interference cooperation. Device, the piston should be placed in water or oil evenly heated to 90 ℃ ~ 100 ℃, remove, put the rod on the piston pin hole between the appropriate position, and then coated with oil piston pin in the specified direction installed Into the piston pin hole and connecting rod copper sleeve. Together, to push the piston pin, while the activities of connecting rod, with the thumb or palm into the pin hole and connecting rods small head copper sleeve, and can move in it, then clarify the cooperation between the two appropriate. To make the piston pin end and the two piston pin ring interval is flat, fitted with retaining ring.
Fourth, the Oil Pressure Switch device. When installing the Oil Pressure Switch, pay attention to each ring azimuth and order. The first air ring on the piston, usually chrome ring. Second, the third ring mostly to change the ring, there are conical ring. In the case of a cut ring, cut off to the bottom; if the cone ring, engraved with "on" the word side or cone angle should be facing up. The opening of the first air ring can not be on the piston pin hole and the top of the piston vortex groove; adjacent ring of the opening position should be staggered 90 ~ 120 degrees, to avoid the cylinder Inside the gas leakage, in order to facilitate the seal. After the Oil Pressure Switch is loaded, check its opening clearance (end clearance) and side clearance. The gap is too large, easy to cause leakage, the gap is too small, will occur stuck phenomenon; edge clearance is the oil switch and ring groove in the height of the gap, it makes the ring in the ring groove can be free to move, not stuck , This gap should not be too large, otherwise, when the piston moves up and down in the cylinder, the gas ring will produce pump oil effect, smooth oil into the combustion chamber to speed up the consumption of smooth oil and the formation of severe carbon deposition.
The performance of the car Oil Pressure Switch has a decisive effect on the quality and efficiency of the engine, since the Oil Pressure Switch is one of the important parts of the engine. In summary, the plug ring leakage and closed gap detection of the importance and decisiveness. Ring is a mass production, requiring a high efficiency, accuracy and reliability.
The working surface of the Oil Pressure Switch shall not be scored, scratched, peeled off, the outer cylindrical surface and the upper and lower end faces shall have a fixed finish, the curvature deviation shall not be greater than 0.02-0.04 mm, and the standard sinking in the tank shall not be More than 0.15- 0.25 mm, the oil pressure of the switch, the gap is in line with the provisions. In addition, the Oil Pressure Switch should also check the leakage, that is, the hydraulic switch flat on the cylinder, put a small lamp underneath, put a shading board, and then observe the Oil Pressure Switch and the gap between the cylinder wall gap, It is clear that the contact is good.