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News Center -GSGT Mall A Comprehensive Analysis of Maintenance Tips for Forklift Lead-Acid Battery Terminals

A Comprehensive Analysis of Maintenance Tips for Forklift Lead-Acid Battery Terminals

Time:2025-07-05 10:43:29

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Therefore, mastering the maintenance skills of lead-acid battery terminals for forklifts is of great significance for ensuring the efficient and safe operation of forklifts.

In the daily operation of forklifts, lead-acid batteries serve as the core power source, and the stability of their performance is of vital importance. As the key connection point between the battery and the electrical system of the forklift, the terminal post, once it has a problem, will directly affect the start-up and operation of the forklift, and may even cause safety hazards. Therefore, mastering the maintenance skills of lead-acid battery terminals for forklifts is of great significance for ensuring the efficient and safe operation of forklifts.
1. Common Problems and Causes of Terminal Posts
The most common problems with terminal posts during long-term use are corrosion and loosening. Corrosion is often manifested as the appearance of white, green or blue powder-like substances on the surface of the terminal posts. This is mainly due to the chemical reaction between the sulfuric acid vapor in the battery electrolyte and the metal of the terminal posts, generating metal salts. The loosening of the terminal posts is due to the continuous vibration of the forklift during operation, which causes the nuts and bolts that fix the terminal posts to gradually loosen. If these problems are not dealt with in time, corrosion will aggravate the damage of the terminal posts, and loosening may lead to poor contact, causing difficulties in starting the forklift, reduced power, and in severe cases, may even cause a fire.
2. Terminal Maintenance Tips
(1) Daily cleaning
Regular cleaning of the terminal posts is the basic work of maintenance. It is recommended to clean at least once a week. When cleaning, disconnect the negative terminal connection of the battery first, and then the positive terminal connection to prevent short circuits. Use a dedicated battery terminal cleaner, spray it on the surface of the terminal posts and terminals, and wait for a few minutes to allow the cleaner to fully dissolve the corrosion. Then gently scrub with a clean brush until the surface of the terminal posts regains its metallic luster. Finally, wipe it clean with a damp cloth to ensure there is no detergent residue.
(2) Anti-corrosion treatment
After cleaning is completed, anti-corrosion treatment should be carried out. A layer of special battery anti-corrosion protective agent or vaseline can be applied to the surface of the terminal posts and terminals. These substances can form a protective film on the metal surface, isolating air and electrolyte vapor, effectively preventing the terminals from being corroded again. When applying, cover evenly to ensure that every corner is protected.
(3) Fastening inspection
Each time the cleaning and anti-corrosion treatment are carried out, the tightness of the terminal posts should be checked. Use the appropriate wrench to tighten the nuts and bolts to the specified torque. The torque for tightening the terminal posts of different models of forklifts may vary. Generally, it is clearly stated in the forklift's user manual. If no relevant data is found, you can consult the forklift manufacturer or professional maintenance personnel. When tightening, be careful not to apply excessive force to avoid damaging the terminal posts or terminals.
(4) Regular inspection
In addition to daily maintenance, a comprehensive inspection of the battery terminals should also be carried out regularly. Conduct a thorough inspection at least once a month to check if there are any cracks, deformations or other conditions on the terminal posts. At the same time, check whether the connection between the terminal posts and the cable is tight and whether there is any heating phenomenon. If an abnormal increase in the temperature of the terminal post is found, it is very likely caused by poor contact and needs to be dealt with promptly.
3. Frequently Asked Questions and Answers
(1) How to determine if the terminals are loose?
It can be judged through the following several methods. First, observe whether there is a gap between the terminal post and the terminal block. Under normal circumstances, they should fit tightly. Secondly, during the start-up and operation of the forklift, listen carefully for any "sizzling" sound of current. If there is, it is very likely caused by loose terminals leading to poor contact. Finally, gently shake the terminal post by hand. If you feel it is obviously loose, it needs to be tightened.
(2) Can severely corroded terminal posts still be repaired?
If the corrosion of the terminal posts is not too severe, normal use can generally be restored through the above-mentioned cleaning and anti-corrosion treatment methods. However, if the corrosion is extremely severe, resulting in extensive damage, deformation, or even destruction of the internal structure of the terminal posts, it is usually impossible to repair them and new terminal posts need to be replaced in a timely manner. When replacing, select the terminals that match the battery model and have them operated by professionals to ensure correct installation and firm connection.
(3) What serious consequences will not maintaining the terminal posts cause to forklifts?
As mentioned earlier, failure to maintain the terminal posts will lead to accelerated corrosion and severe loosening. Corrosion will increase the contact resistance, preventing the battery's electrical energy from being effectively transmitted. As a result, forklifts may encounter problems such as difficult starting, insufficient power, and shortened driving range. Loosening may lead to poor contact, causing electric sparks. This not only damages the terminals and cables but also may ignite the flammable and explosive gases around the battery, causing fires or even explosions, posing a serious threat to the safety of operators and equipment.
4. Summary
The maintenance of lead-acid battery terminals for forklifts may seem simple, but it is an indispensable part to ensure the normal operation of forklifts. Through daily cleaning, anti-corrosion treatment, fastening checks and regular inspections, as well as timely handling of emerging problems, the service life of the terminal posts can be effectively prolonged, the performance of the battery can be improved, and the safe and efficient operation of the forklift can be ensured. In actual operation, operators must attach great importance to the maintenance of terminal posts and operate strictly in accordance with the norms to avoid losing the big picture for small gains and causing unnecessary losses.

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