The loader is an indispensable equipment in the construction process, so it should be well maintained to prevent problems from causing hidden dangers. Here we learn about the next problem -- the causes and measures of the tension and wear of the loader cylinder liner.
Loader cylinder liner strain
The main manifestations of cylinder liner strain are: the piston in the cylinder makes a knocking sound; Diesel engine power decreases; When the oil burns, the tail gas is blue or white; The oil becomes thinner and the pressure drops.
(1) The causes of cylinder failure are:
① The cooling system is faulty, the machine is overheated, and the piston is heated and expanded too much;
② Insufficient oil, deterioration or impurities, resulting in poor lubrication;
③ The clearance between piston and cylinder wall is too small (mostly seen in new engines or diesel engines that have just been overhauled)
④ The piston ring is broken or stuck;
⑤ The piston pin circlip fails, causing the piston pin to move.
Wear of loader cylinder liner
In order to reduce the wear of cylinder liner, in addition to taking anti-corrosion and wear-resistant measures in design and manufacture, the following points should also be paid attention to in use and maintenance engineering:
(1) correct startup and startup.
After the cold start, the bike should be warmed up for 3 ~ 5 minutes under the condition of low throttle before starting.
Work under load for a period of time, and then work under heavy load after the temperature rises.
(2) Maintain the normal temperature of the engine.
The temperature of the diesel engine is too low to maintain good lubrication, which will increase the friction of the cylinder wall; Too high temperature will reduce the strength of the cylinder and intensify wear. 80 ℃ ~ 90 ℃. When the temperature exceeds 95 ℃, reduce the load or shut down for cooling.
(3) keep good lubrication.
Regularly check and keep the oil quality good and the oil level moderate, and replace it regularly according to the season. Use oil with proper viscosity to ensure good lubrication.
(4) strengthen the maintenance of three filters (air filter, oil filter and diesel filter).
This is the main measure to prevent mechanical impurities from entering the cylinder, reduce cylinder wall wear and prolong the service life of the engine, which is particularly important for the diesel engine used on the loader, because the dust content of the loader is often very high.
(5) improve the quality of maintenance.
Jinan loader leasing personnel remind you to carry out maintenance and repair operations in strict accordance with the technical standards specified in the diesel engine operation and maintenance manual. Adjust and control the fitting clearance (opening clearance) to prevent accelerated wear of piston and cylinder wall due to improper maintenance.
The above is the relevant content of the question and answer. I hope it can help you. If you have any questions about this issue, you are welcome to follow our website http://www.ycgjglcl.com And consult our staff, who will serve you wholeheartedly.