What are the wrong maintenance methods for aerial platform work vehicles?

What are the wrong maintenance methods for aerial work vehicles?
 
Too much oil - failure

When the oil in the engine oil sump is insufficient, the friction between the bearing and the journal will be poorly lubricated due to the small amount of oil, which will aggravate the degree of wear and even cause a burnt shaft accident. However, if there is too much oil, the crankshaft shank and the big end of the connecting rod will produce severe agitation when the engine is working, which not only increases the internal power loss of the engine, but also increases the oil splashed on the cylinder wall and causes the burning oil to malfunction. . Therefore, with the crane, the oil in the engine oil sump of the aerial work vehicle should be controlled between the upper and lower engraved lines of the oil dipstick.

Bolt too tight - permanent deformation

With the crane, there are many fasteners connected with bolts and nuts on the aerial work vehicle. It should be ensured that it has sufficient pre-tightening force, but it cannot be tightened too tightly. If it is tightened too much, on the one hand, the connecting piece will be permanently deformed under the action of external force; on the other hand, the bolt will be stretched and permanently deformed, and the pre-tightening force will be decreased, and even the buckle or the broken phenomenon will be caused.

 New battery is not charging - shorten life

The first charge of the battery is called the first charge, and the initial charge has a great impact on the battery life. If it is not charged, it will be directly used by adding "water". The capacity of the battery will not be high and the life will be shortened. If it is directly charged, the life will be shortened. Usually, the initial charge of the battery is charged after charging the electrolyte for about 1 hour.