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常见问题
 Hubei Maihui Goldmill Machine co.,ltd.  all rights reserved   鄂ICP备08005228号 
SERVICE SUPPORT
Question

Battery maintenance

Answer
Do not over discharge. Do not charge the device until it cannot be moved, which will shorten the battery life. Once the battery charging signal appears, please charge it immediately. The battery cover must be kept dry and clean. The terminals and cable lugs must be kept tight and clean. A small amount of special grease should be applied. If the electrode of the battery is not insulated, the electrode must be covered with a non-slip insulating mat. Unplug the power cord before wiping the battery. Do not use a dry cloth or fabric to wipe the surface of the battery to prevent explosion caused by static electricity. Wipe with a damp cloth after twisting to avoid contact with the electrode. Wear goggles, rubber shoes and rubber gloves. The acid in the battery is toxic and corrosive. Do not disassemble the battery without permission. Absolutely avoid direct contact with battery acid.
Question

Common faults and solutions for all-electric stacker

Answer
Malfunction Cause analysis Troubleshooting
Lifting crawl Insufficient hydraulic fluid. There is air in the hydraulic system. Add enough hydraulic oil. Lift the cylinder to exhaust.
The fork does not rise No hydraulic oil; the oil is not clean; or there is debris. Add hydraulic oil, clean the hydraulic mechanism and re-add clean hydraulic oil to remove dirt or change cleaning oil.
The fork cannot slide naturally when it is empty There is debris and obstacle in the roller or bearing. The unloading oil line is blocked. Remove debris, apply grease or replace bearings. Clean the oil circuit.
The motor does not turn The power cord is disconnected. The battery voltage is too low. The motor carbon brush is damaged. Connect the power cord. Charge it. Replace the motor carbon brush.
Low battery voltage Insufficient charge; the electrolyte level is too low. The battery is damaged. Top-up electricity. Add distilled water. Replace the battery.
 
Question

Common faults and solutions of manual hydraulic truck

Answer
Mlfunction Cause analysis Troubleshooting
Lifting height does not meet the requirements Not enough working oil Remove the screw plug on the hydraulic unit, inject a small amount of filtered working oil, and reinstall the screw plug.
The lifting cylinder does not work, the fork does not rise, and the starting process is slow. 1. There are impurities in the working oil, and the valve in the hydraulic system is not tightly closed. Remove impurities or replace working oil
2. The ejector spring in the hydraulic system loses its working ability and is unable to restore the ejector lever to the working position. Replace the ejector spring
3. Due to the deformation of the pull rod, the coordination of three working procedures of the handle position and the oil distribution valve are lost. Adjust the adjusting nut under the oil valve switch plate to coordinate the handle position and the oil valve action.
4. The poor sealing performance and leakage of the oil pump or the lifting cylinder are caused by the aging or wear due to the long time use of sealing parts in the lifting cylinder and the sealing parts in the oil pump. Replace the seals
5. The O-ring seal on the outer circle of the combination valve is damaged or aged, so that the high and low pressure working oil can pass. Replace the O-ring
6. After the pump core is pressed, it cannot be lifted by itself, so that the oil pump cannot continue to work. If the return spring has no elastic force, replace the spring, and remove the pump core that pulls the cylinder to repair or replaces.
The car body cannot be left unloaded Due to the eccentric load and overload, the component is deformed, causing severe friction and malfunction during the movement of the component. Repair to make the components flexible.
 
Question

Common faults and solutions of all-electric trucks

Answer
Malfunction Cause Analysis Solution
Forklift can't drive The switch lock is in the off position, the battery is too low, the fuse is burned out, and the forklift is in the charging mode.   Put the switch lock in the starting position, check the battery charging status, charge when needed, check the safety device, and interrupt the charging process.
Unable to lift the goods Hydraulic oil level is too low, or overloaded Check hydraulic oil level to reduce weight to rated load
 
Question

Common troubles and solutions for aerial work platform series

Answer
Malfunction Cause analysis Troubleshooting
Pump station does not work Power failure, fuse blown Replace the fuse
The platform does not rise Hydraulic oil frozen Replace with antifreeze hydraulic oil
Lifting crawling or hydraulic system vibration Insufficient hydraulic oil, air inhaled Add enough hydraulic oil to remove air
Pipe and joint oil leakage The joint nut is loose; the O-ring seal is invalid; the pipe is aged and damaged. Tighten the joint nut. Replace the O-ring seal. Replace the damaged pipe.
Platform drops automatically The hydraulic system leaks oil; there is foreign matter in the solenoid valve; the solenoid valve body is worn; Check the oil leak and repair it. Clean the solenoid valve. Replace the solenoid valve.
The platform does not fall The scissor is stuck or there is a foreign object in the roller groove;Hydraulic oil frozen; Repair the card and clear the wheel slot. Replace with anti-hydraulic oil.