Haosail Car Lift Equipment Technical Manual

1. Equipment Overview

Haosail car lift is a special equipment for the auto maintenance industry, which lifts vehicles (total weight ≤8T) to the specified height through hydraulic drive, providing a safe working space for vehicle maintenance, repair and inspection. The equipment is driven by hydraulic pressure, with the characteristics of stability, safety and strong bearing capacity.

1.1 Product Classification & Core Parameters

We provide a full range of car lift products to meet different maintenance scenarios:

1.2 Environmental Requirements

• Working temperature: -5℃ ~ +40℃
• Relative humidity: ≤80% at 30°C
• Storage temperature: -5℃ ~ +40℃ (scissor lift: -25℃ ~ 55℃)
• Altitude: ≤2000m
• Installation ground: Concrete strength ≥3000PSI (2.1KG/mm²), thickness ≥150mm (2 post/gantry lift ≥250mm), level error ≤5mm

2. Equipment Structure & Working Principle

2.1 Core Structure

• Bearing Structure: Column (2 post/gantry lift), Platform (4 post/scissor lift), Swing arm/Support arm (with lifting pad)
• Drive System: Power unit (motor, gear pump), hydraulic cylinder, hydraulic oil pipe
• Balance System: Steel wire rope (2 post/gantry lift), balance valve (scissor/4 post lift)
• Safety System: Safety lock (manual/electric/pneumatic), limit switch, anti-fall plate
• Control System: Button switch, contactor, solenoid valve

2.2 Working Principle

2.2.1 Hydraulic System

The motor drives the gear pump to extract hydraulic oil, which is transported to the hydraulic cylinder through the oil pipe. The pressure of the hydraulic oil pushes the piston rod to expand and contract, driving the bearing structure to rise. When descending, the safety lock is unlocked, the solenoid valve is controlled to make the hydraulic oil flow back to the oil tank, and the bearing structure descends smoothly under the action of gravity.

Recommended hydraulic oil: N32 / N46 (scissor lift can use L-HM32/L-HM46)

2.2.2 Electrical System

Press the control button, the contactor is energized, the motor starts to drive the hydraulic system. The limit switch monitors the lifting height, and cuts off the motor power when the upper limit is reached to prevent overload collision. The emergency stop button can quickly cut off the power to ensure safety in emergencies.

3. Standard Operating Procedures

3.1 Pre-operation Preparation

1. Environmental inspection: Clear obstacles, oil stains and garbage in the lifting area, ensure no personnel stay
2. Equipment inspection:
   • Power supply: Voltage meets the equipment requirements, wiring is firm
   • Hydraulic system: Hydraulic oil level is normal (15-30mm from the oil surface to the top of the oil tank), no leakage
   • Safety components: Safety lock and limit switch work normally, steel wire rope has no broken strands, swing arm positioning mechanism is intact
   • Connecting parts: Bolts (especially anchor bolts) are fastened without looseness
3. Personnel preparation: Wear work clothes, safety shoes, tie up long hair, do not wear loose clothes

3.2 Lifting Operation

1. Drive the vehicle slowly into the lifting area, make the center of gravity close to the center of the equipment
2. Adjust the angle and length of the swing arm/support arm, make the lifting pad align with the recommended lifting point of the vehicle, adjust the height to fit the chassis
3. Press the "UP" button, slowly lift the vehicle to 10-20cm above the ground, stop lifting
4. Check whether the contact is firm and the vehicle is stable, after confirmation, continue to lift to the required working height
5. Release the "UP" button, the safety lock is automatically engaged, and maintenance can be carried out only after confirming that the safety lock is locked

3.3 Descending Operation

1. After the maintenance is completed, clean up tools and debris, ensure no obstacles in the lifting area
2. Press the "UP" button, lift the equipment slightly to disengage the safety lock
3. Pull the unlock handle (manual unlock) or start the unlock device (electric/pneumatic unlock) to release the safety lock
4. Slowly press the "DOWN" button to make the equipment descend smoothly
5. After the vehicle is completely landed, retract the swing arm/support arm, and drive the vehicle out of the lifting area
6. Turn off the equipment power and clean the equipment surface

3.4 Emergency Descending Operation (Power Outage / Power Unit Failure)

1. Turn off the main power switch to prevent accidental startup
2. If the safety lock is engaged, use a hydraulic jack or emergency manual pump to lift the equipment slightly
3. Pull the safety lock unlocking steel wire ropes on both sides (2 post/gantry lift) or operate the emergency pressure relief valve (other types) to release the safety lock
4. Slowly release the hydraulic pressure to make the equipment descend smoothly

4. Routine Maintenance Plan

Long-term Storage Maintenance (More than 1 month without use)

• Disconnect the power supply and turn off the main switch
• Drain the hydraulic oil in the hydraulic oil tank and clean the oil tank
• Apply grease to all moving parts and metal surfaces to prevent rust
• Cover the equipment with a plastic cover to prevent dust and moisture

5. Common Fault Troubleshooting

6. Safety Specifications

6.1 Operation Qualification Requirements

• Only personnel who have received special training and passed the examination can operate the equipment. It is strictly forbidden for unqualified personnel to operate without permission.
• Electrical wiring and maintenance must be completed by a certified electrician.

6.2 Prohibited Behaviors

• It is strictly forbidden to overload the lift (the rated load of the equipment is marked on the nameplate)
• It is strictly forbidden to lift when there are people in the vehicle, and non-operators are not allowed to enter the lifting area during operation
• It is strictly forbidden to work under the vehicle before confirming that the safety lock is locked
• It is strictly forbidden to modify equipment parts or safety devices, and it is strictly forbidden to disable safety devices
• It is strictly forbidden to use the equipment in extreme temperature, humid, dusty or corrosive gas environment
• It is strictly forbidden to touch moving parts (such as swing arm, steel wire rope, oil cylinder) when the equipment is running
• It is strictly forbidden to use the equipment to lift personnel or heavy objects other than vehicles/motorcycles

6.3 Special Situation Handling

• When the equipment fails, stop using it immediately, hang a "No Use" sign, and contact the after-sales service
• In case of sudden power failure, use the manual emergency descending function, and it is forbidden to start the equipment forcibly
• If equipment parts are damaged (such as broken strands of steel wire rope, hydraulic leakage), stop using it immediately, and run it after replacing the original factory parts

7. Warranty Description

• The equipment warranty period is 12 months Main Structure from the date of the purchase invoice.
• The warranty scope does not include:
  1. Damage caused by improper manual operation and overload
  2. Wear caused by failure to maintain according to the manual
  3. Failure caused by unauthorized modification or use of non-original accessories
  4. Equipment problems caused by unqualified concrete foundation
• Warranty service requires providing equipment model, serial number and purchase certificate.