1. Look at the parts and specifications of forklift accessories.
Most forklift accessories have a specific part number and technical parameters. When purchasing electrical system accessories, attention should be paid to check whether the voltage and power of the replacement parts are consistent; when purchasing forklift engine transmission belt, attention should be paid to the type and length width.
2, see whether the logo of the outer package is complete.
The quality of forklift truck accessories is relatively good, and the writing on the box is clear, and the overprint color is bright. Some important components, such as generators, starters, hydraulic pumps, etc., are also equipped with instructions, certificates and inspector’s stamps to guide users to correctly use maintenance methods. Therefore, when purchasing, we should recognize them carefully so as not to buy fake and forklift truck accessories.
3. Look at the shape and size of forklift accessories.
Some forklift accessories are prone to deformation due to manufacturers’ manufacturing, logistics, transportation and improper storage. When checking, the axle parts can be rolled along the glass plate one circle to see if there is a leak of light between the parts and the glass plate to determine whether the bending; when purchasing forklift truck clutch driven disc steel sheet or forklift truck friction sheet, steel sheet and friction sheet can be held in front of the eyes to observe whether there is warping; when purchasing forklift truck oil seal and other sealing parts, with a skeleton The end face of the oil seal shall be in a regular circle, which can be fitted with flat glass without warping; the outer edge of the oil seal without skeleton shall be rectified and deformed by holding it in hand, and shall be restored to its original state after loosening. When choosing all kinds of liners, we should also pay attention to checking the geometric size and shape of accessories with professional measuring tools.
4, see whether the joint parts of forklift accessories are smooth.
In the process of handling and storage, or because of vibration and bump, forklift parts often produce burrs, indentation, damage or cracks in the joint, in order to affect the installation and use of forklift parts. This should be checked when purchasing or inspecting goods.
5, see whether there is rust on the surface of forklift accessories.
Qualified parts surface, both a certain degree of precision and glossy finish, the more important parts, the higher the accuracy, and the more rigorous anti-rust packaging. When purchasing or inspecting goods, attention should be paid to inspection. If rust spots, mildew spots, rubber cracks, loss of elasticity, or the surface of the journal has obvious knife lines, should be replaced.
6, see forklift accessories to protect the surface is intact.
Most accessories are coated with protective coating when they leave factory. For example, the piston pin and bush are usually protected by paraffin wax while the piston rings and cylinder liners of forklift trucks are coated with antirust oil and wrapped in wrapping paper. The antirust oil such as valves and pistons of forklift engine accessories are sealed with sealed plastic bags. If the seal sleeve of the sealing bag is damaged, the packing paper is lost, and the rust-proof oil or paraffin is lost, the goods should be returned or exchanged.
7, see whether there is loosening of adhesive fittings.
In the inspection of forklift truck parts made up of two or more parts, the parts are processed by pressing, gluing or welding, and no loosening is allowed between the parts, such as forklift pump plunger and adjusting arm are assembled by pressing; forklift clutch pressure plate and clutch plate are riveted. The friction plate of forklift truck is riveted or glued to the steel plate; the filter core skeleton of various filter elements is glued to the filter paper; the circuit and wire head of the electrical equipment are welded. If there is any loosening during purchase, it should be exchanged.
8, see whether the rotating parts are flexible.
When purchasing the assembly of rotating parts such as forklift oil pump, the pump shaft should be rotated by hand, which should be flexible and free from sticking. When purchasing needle roller bearings, one hand supports the inner ring of the bearing, the other hand turns the outer ring, and the outer ring should be able to rotate quickly and freely, and then stop gradually. If the rotating parts do not work properly, indicating that the internal corrosion or shape has been deformed, will affect the use, should be returned or replaced.
9, see whether there are any missing parts in each assembly.
High quality forklift truck assembly parts such as the clutch or transmission assembly of the forklift transmission system, the assembly must be fully equipped with spare parts, in order to ensure that the assembly can be smoothly assembled and normal operation. If some individual parts of assembly components are missing, assembly components will not work or even discard.
10, see whether the assembly marks of forklift accessories are clear.
In order to ensure that the assembly relationship of other fittings meets the technical requirements, assembly marks are engraved on the surface of some parts (such as timing gears). If there is no mark or the mark is fuzzy and unrecognizable, it will bring great difficulties to the assembly work, even directly wrong assembly.
11, see whether there is wear on the surface.
If there are wear marks on the surface of the fittings, or if the painted fittings open the surface of the paint and find the old paint, then mostly disguised as scrap car parts, can be directly required to replace.
12, see whether the surface hardness of forklift accessories is up to standard.
The surface hardness of each fittings has a prescribed requirement. After purchasing and negotiating with the merchant, the broken stubble of the saw blade can be used for trial-drawing. If the hardness is high, the hardness of the slightly shallow mark after scratching is higher; if there are obvious marks after scratching, the hardness is low, but it is necessary to pay attention not to damage the matching during scratching. Part of the work face.