How should bicycles be maintained and maintained
Bicycle maintenance and maintenance:
In order to successfully complete each trip plan, it is necessary to strengthen maintenance and keep your car in a sensitive and reliable good condition all-weather. In addition, you must also learn some necessary repair techniques to deal with what happens during the trip. Some of the faults.
1. Let me talk about maintenance first. In general, as long as it is an active place, it must be maintained and inspected frequently. But the focus is on the transmission system, braking system and three axles (ie, front and rear middle axles).
(1) The maintenance of the transmission system: mainly lubrication. The effective method is to add lubricating oil. What I want to remind everyone is that the chain should always be kept lubricated and sensitive, especially after wading and raining, refueling in time. The moving parts of the front and rear transmissions should also be frequently filled with oil. The oil used in the chain and transmission is a special anti-rust lubricating oil for bicycles. Ordinary engine oil can also be used, but the effect is poor.
(2) The maintenance of the brake system: The brake system is particularly important because it is related to the personal safety of traveling. In addition to maintaining the sensitivity and reliability of each movable part, it is necessary to frequently check the stroke clearance and wear of the brake block. Both sides of the stroke gap of the brake shoe should be kept within the range of 2-3 mm. If the gap is too large, the free stroke value of the brake block will be increased, which will reduce the sensitivity of the brake. If the gap is too small, the brake lever may appear, increasing the riding strength and wasting physical strength. There are more than two grooves on the surface of each brake block. If these grooves are going to be ground or have been ground, they should be replaced in time to ensure braking sensitivity and driving safety.
(3) Maintenance of the three-axis shaft: There are several kinds of three-axis shaft. It can be divided into ordinary shafts, sealed shafts, bearing shafts, etc. But no matter what kind of shaft it is, it must be maintained regularly. The timing is five thousand kilometers per year, which means that if you run five thousand kilometers, no matter if it is less than a year, you should perform a maintenance of changing the butter. If you run enough for a year, no matter it is less than five thousand kilometers. , But also a maintenance of replacing the butter. At the same time, check the degree of wear of the steel ball and shaft gear and other parts, and replace it in time. Note that do not use engine oil for lubrication of each shaft.
(Iv) Maintenance of brake cables and shift cables: general brake cables and shift cables have motion tubes. Both ends of these tubes will inevitably enter some dust and moisture, and some rain water will enter in rainy days, which is easy to cause the line If it is corroded, the thread should be pulled out, buttered around the thread, and then inserted and installed. And every year, no more than two years will have another butter.
