This comprehensive guide is intended to provide detailed, systematic safety and operational specifications for the repair and maintenance of electric forklifts. Compliance with the recommendations and regulations contained therein, whether by professional maintenance technicians or by personnel who use forklifts on a daily basis, will help to ensure the safe and stable operation of the forklift and to effectively extend its useful life。
Pre-maintenance preparation
Preparation of tools and spare parts
Tool readiness: ensure that the tools required, such as screwdrivers, wrenches, jacks and measuring tools, are in full and good condition. Check the integrity and functionality of the tool to avoid problems affecting maintenance progress。
Spare parts readiness: in accordance with vehicle maintenance requirements, spare parts such as screws, bearings, filters and light bulbs are prepared in advance. Ensure that spare parts match vehicle models and specifications, and check the quality of spare parts to avoid the use of secondary items。
Workspace readiness
Clean-up of working areas: keep working areas clean and remove miscellaneous items and obstacles, especially oil and water stains on the ground, to prevent slippage or damage to tools。
Warning signs: set up warning signs around maintenance areas to alert others not to enter and ensure maintenance safety。
Safety isolation: safe isolation of vehicles for maintenance, using such measures as security locks or blockages to prevent accidental start-up or movement of vehicles。
Vehicle status confirmed
Awareness of malfunctions: mastery of current malfunctions, failure codes and maintenance history of vehicles in order to make a preliminary determination of cause of failure。
Preparation of maintenance plans: a detailed maintenance plan based on vehicle failure and maintenance requirements, specifying maintenance steps, time required and spare parts, etc。
Comprehensive vehicle inspection: a thorough and detailed vehicle inspection is performed prior to maintenance to ascertain the overall condition of the vehicle in order to identify and resolve potential problems in a timely manner。
Risk assessment
Identification of risk points: depending on the maintenance plan and the vehicle's state, predetermine possible risk points such as electrocution, fire, explosion and high altitude crashes。
(b) development of preventive measures: for identified risk points, appropriate preventive measures, such as wearing protective gear, insulation tools and safety nets。
Emergency preparedness: develop contingency plans and prepare the necessary emergency equipment and medicines to respond to potential emergencies。
Forklift maintenance and inspection checklist
The maintenance of electric forklifts must carefully follow the maintenance content of the frequencies inspected. This will not only ensure that the forklift remains in good condition before and after day-to-day use, but will also ensure its long-term stability through thorough monthly, quarterly, semi-annual and annual inspections to fully detect the performance and safety of its systems and components。
Basic maintenance is the starting point for the maintenance of electric forklifts and covers all aspects of day-to-day operations, such as external cleaning, tyre pressure monitoring, hydraulic system status checks, and safety device integrity confirmation. These measures are designed to ensure the safety of forklifts in their daily use。
With the passage of time, we need more in-depth monthly inspections. At this stage, we will explore in depth the core parts of the forklift, such as the electrolytic state of the battery, the lubricant condition of the driver's bridge, the extent of wear and tear of the brake system's piping and drum making. These inspections are aimed at early identification and resolution of potential problems and at preventing failures。
Quarterly inspections are more focused on the state of key components. We will focus on the cleaning of the batteries, leakage of the driver's lubricant and the details of the brake system. These checks are intended to maintain the optimal state of the components, thereby reducing the failure rate and ensuring the stable operation of the forklift。
The six-monthly comprehensive assessment was a major review of the overall performance of the forklift. It includes not only the examination of appearance injuries, the testing of brake distances, but also the development of targeted maintenance plans to ensure that forklifts remain in good condition for subsequent use。
The annual inspection is a comprehensive review of the safety of the forklift. It covers measurements of insulation resistance, state checks of cooling systems, confirmation of the integrity of the total and subpumps of the brake system, and adjustments to the tightness of the chain. These measures are designed to ensure the safe and stable operation of the forklift in the long term。
Safety provisions for maintenance
Security of personnel
The safety of personnel is a primary consideration in the maintenance and repair of electric forklifts. The following are key security measures:
Security upgrades and fixes
During maintenance, it is essential to ensure the safe upgrade and fixation of electric forklifts. The following are some key measures:
Cleaning operations
Cleaning operations are also essential during maintenance. However, as this part of the material is not specified in the original material, it cannot be directly rewrited to connect to [ref. 1]. However, it may be inferred from the context that cleaning may involve cleaning, lubricating and cleaning of forklift components。
Electrical systems operational security
Accident prevention
The operation of the electrical system must be carried out by specialized technicians trained in electrical technology to ensure the professionalism and safety of the operation。
Prepare for operation
Before commencing operations, technicians must take all necessary safety precautions to prevent electrical accidents。
Battery connection disconnected
In order to ensure safety, it should be ensured that the bottle connection is completely disconnected (i. E. The bottle plug has been removed)。
Power safety concerns
All repair and maintenance work involving electrical equipment must be carried out with complete power cuts. Prior to the commencement of such work, it will be necessary to make careful confirmation that the forklift has been safely parked, that the emergency parking switch has been pressed and the bottle connection has been broken, and that the operator will be required to remove items such as rings, metal watches and the like to prevent accidental electrical contact。
Welding is of particular concern
If welding is required, the electrical and electronic components of the forklift must first be removed to protect them from the welding process。
Set value check
When repairing or replacing hydraulic, electrical and electronic components, the specified parameters of the forklift must be carefully checked to ensure that the replacement or repaired components are fully compatible with the original parameters of the forklift。
Forklift tyres
The choice and replacement of forklift tyres is essential to ensure the stability and driving performance of the equipment. The use of non-conforming wheels would pose a serious threat to operational safety。
The quality of the wheel is essential for the stability of the forklift, which directly determines the overall driving capacity of the forklift. The stability of the forklift will be significantly compromised in the event of uneven wear and tearing of tyres, while the extended brake distance increases the risk of accidents. When changing wheels, we must be extremely careful to ensure that forklifts remain stable and avoid tilts, thus preventing accidents. In addition, in order to maintain balance and stability in the movement of forklifts, the wheel must be replaced in pairs and not separately on one side. At the same time, the maintenance of the ascending chain should not be overlooked, and it must be kept clean and fully lubricated to ensure its safe operation。
Cleaning methods
: the use of paraffin hydrocarbon derivatives, such as gasoline, oil or diesel, is recommended for thorough clean-up to effectively remove all types of stains。
Disable cleaning
Cleaning methods such as high pressure steam cleaning equipment, cold washing or chemical washing agents are strictly prohibited for use in lifting chains to avoid damage to them。
Dry and lubricants
: upon completion of cleaning, the lifting chain shall be dryed with compressed air and fully lubricated with specialized chain spray. Note that lubricant may only be added in a loadless lifting chain。
Focused lubricants area
: in the lubricants process, special attention should be paid to the shift to the ascending chain within the wheel to ensure that the region is properly and adequately lubricated。
Hydraulic hose maintenance for hydraulic systems
Life expectancy and timing of replacement of high pressure hoses
: the maximum useful life of high pressure hoses is six years. Once this deadline is reached, it must be replaced in a timely manner to ensure stability and reliability of performance。
Safety standards for hydraulic hoses
: all hydraulic hoses must meet zh 1/74 safety standards to ensure safety during use。
Hydraulic pipe road sealing maintenance
If the hydraulic pipe is unsealed or damaged, it should be detected and reported in a timely manner, while marking and stopping the damaged forklift. The forklift can be restarted only after troubleshooting and confirming safety. In addition, immediate measures should be taken to remove and properly treat hydraulic fluids spilled or released to prevent environmental pollution。
Small crack protection for hydraulic piping
: if a small hole or small crack is found on the hydraulic pipe road, medical treatment should be provided immediately in order to prevent serious damage to the skin from infiltration of hydraulic fluids. At the same time, during the operation, touch hydraulic piping should be avoided to prevent accidental occurrence. As soon as such problems are detected, they should be reported to the higher authorities and the damaged forklift marked and stopped。
Forklift parking and storage
If the forklift is required to be stopped for more than two months, it should be placed in an unfrozen dry environment and followed detailed operating guidelines before, during and after storage to ensure the safety and security of the forklift。
Prepare for storage
Full cleaning: completely clear the dirt and dust inside and outside the forklift and ensure that it is fresh。
Brake system check: verify the reliability of the brake system and ensure that it can be activated at any time during storage。
Hydraulic oil inspection and replenishment: look closely at hydraulic fluid levels and, if necessary, add appropriate quantities to ensure their adequacy。
Lubrication protection: a thin oil or lubricant coating of all surface-treated mechanical components to prevent erosion。
System lubrication: nuanced lubrication of various forklift lubrication points to ensure smooth operation。
(b) maintenance of bottles: adequate electricity for the cylinders and cleaning of the poles. At the same time, specialized grease is painted on electrode bolts, following the operating guidelines of the bottle manufacturer。
Head-to-head protection: appropriate head-to-head protection agents are sprayed on all exposed head-to-head surfaces to enhance their protective performance。
Management of storage period (every two months)
(c) periodic charge of a bottle: it is charged to prevent its performance from being reduced or damaged by prolonged self-charge. In particular, forklifts driven by vials are essential for regular charging to avoid the sulfurization of bottles。
Enable ready after storage
Recleaning: full cleaning of forklifts before commissioning to ensure their initial state of cleanliness。
System lubricants: the forklift is systematically re- lubricants to ensure smooth operation of its various components。
(b) electrical bottling: cleaning the vials and repainting the specialized grease on the electrode bolt, then installing and charging the poles。
Liquid inspection and replacement: careful examination of whether condensed water is mixed in gear oils and hydraulic fluids and, if necessary, replacement to ensure their purity。
Start and test: once the forklift has been activated, the driver should test the brake performance several times to ensure its safety and reliability. For bottle-driven forklifts, if the electrical system switch is difficult to operate, head spray can be sprayed and multiple operations switches can be operated to remove the oxidation layer。
