Introduction of intermediate repair of dragon loader

We usually introduce lonking for maintenance of loader parts, through these methods can generally avoid accident of serious wear, but still can not use for a long time, that part of the natural wear is the working performance days and months multiplying, and economy of the base table must be decreased by repair recovery. Repairs are generally divided into medium repair and major repair, and emergency repairs are necessary. The middle repair mainly solves the contradiction of the uneven assembly of the loader's assembly, and makes thorough disintegration, inspection and repair of the wearing parts. But the main structural parts (such as rack, etc.) are basically not repaired. The diesel engine, steering system and braking system must be overhauled and repaired, and other parts, such as chassis, shall be inspected and repaired. Generally only weld the weld seam. After the repair, parts and the whole machine should be tested for no-load and load.

The specific technical requirements of medium maintenance are:

(1) the disintegration of the engine, the general need to replace the cylinder liner, piston, valve, valve sleeve, piston ring and other parts, in order to restore the compression of the cylinder. It should replace the plunger pair even parts, valve parts, injection head, the timing and quantitative recovery of the fuel supply system to the combustion chamber spraying good diesel, diesel engine to ensure normal work, namely to restore power and economic indicators.

(2) disassemble, check, clean and adjust torque converter and transmission. Replace the sealing elements of each part. Check transmission gear, pull fork, spline and bearing when necessary. Check the degree of wear of the clutch friction plate and replace it over the regulations.

(3) the bridge shall be cleaned and adjusted before and after dismantling, and the rotation shall be flexible without loosening or leaking.

(4) replace all lubricating oil and hydraulic oil to ensure the cleanliness of the hydraulic system. Check the working unit, the pressure box of the hydraulic pump, the transmission pressure, and readjust to the specified value. Check and clean the filter of the hydraulic system and replace the filter if necessary.

(5) dismantling, adjustment, multi-channel reversing valve and variable speed control valve, the valve should not exceed the allowable value of the discharge, the reset spring should ensure that the slide valve in the external force disappeared, the rapid recovery to the middle closed position, and shall not be outside the oil spill.

(6) dismantling, cleaning and cleaning the oil pipeline, requiring the tubing to be free of cracks, oil leakage, tight interfaces and smooth flow of oil.

(7) the electrical part includes disassembling generator, starting motor, checking regulator, all kinds of instrument and sensor, all kinds of lights and whole vehicle circuit.

(8) check the use of tyre alignment.

(9) repair the cushion and backrest of the driver to get comfortable and well.

(10) full machine spray painting, color requirements according to regulations.