BYD Seagull / Dolphin Mini Drive Half Shaft User Manual

1. Bubuka

This manual provides essential information for the proper installation, operation, and maintenance of the BYD Seagull and Dolphin Mini Drive Half Shaft. The drive half shaft is a critical component of your vehicle's drivetrain, responsible for transmitting power from the transmission to the wheels. Proper handling and installation are crucial for vehicle safety and performance.

This product is an original car accessory designed for BYD Seagull and Dolphin Mini models from 2022 to 2025. Please ensure you have the correct part number for your specific vehicle side (left or right) before proceeding with installation.

Gambar 1: Leuwihview of the BYD Drive Half Shaft

2. Émbaran Kasalametan

• Always wear appropriate personal protective equipment (PPE) including safety glasses and gloves when working on your vehicle.
• Pastikeun kendaraan dirojong sacara aman dina stand jack sateuacan ngamimitian padamelan. Pernah ngandelkeun solely on jack a.
• Cabut batré kendaraan sateuacan ngalakukeun padamelan listrik naon waé.
• Refer to your vehicle's specific service manual for detailed torque specifications and additional safety procedures.
• Upami anjeun henteu yakin kana léngkah naon waé, konsultasi ka teknisi otomotif anu mumpuni.

3. Setup jeung Instalasi

Installation of a drive half shaft requires mechanical expertise and specialized tools. It is recommended that this procedure be performed by a certified mechanic.

3.1 Cék Pra-Pamasangan

1. Verify the part number on the half shaft matches the required part for your vehicle's specific side (driver or passenger). The part number is typically stamped on the shaft itself. For example, 'BYD EQEA-2203010' or 'BYD EQEA-2203010A'.


Figure 2: Close-up of the part number on the drive half shaft

2. Inspect the new half shaft for any signs of damage during shipping, such as torn boots or bent components.
3. Gather all necessary tools, including wrenches, sockets, a torque wrench, pry bar, and a drain pan for transmission fluid if applicable.

3.2 Removal of Old Half Shaft

1. Lift the vehicle and secure it on jack stands. Remove the wheel.
2. Remove the axle nut from the hub.
3. Separate the lower control arm or tie rod end to allow the steering knuckle to swing out, providing clearance for axle removal.
4. Carefully pry the inner CV joint out of the transmission/transaxle. Be prepared for transmission fluid to drain if the seal is broken.
5. Remove the old half shaft from the vehicle.

3.3 Installation of New Half Shaft

1. Clean the mating surfaces on the transmission/transaxle and the hub.
2. Carefully insert the new half shaft's inner CV joint into the transmission/transaxle, ensuring it seats fully. You may need to gently tap it into place with a rubber mallet.
3. Guide the outer CV joint through the steering knuckle and into the hub.
4. Reassemble the suspension components, ensuring all bolts are tightened to manufacturer specifications.
5. Install a new axle nut and torque it to the vehicle manufacturer's specifications.
6. Refill transmission fluid if necessary.
7. Pasang deui roda sareng turunkeun kendaraan.

Figure 3: Illustrative diagram of drive half shaft placement in a vehicle

4. Prinsip Operasi

The drive half shaft, also known as a CV (Constant Velocity) axle, is designed to transmit torque from the vehicle's transaxle or differential to the wheels at a constant speed, regardless of the angle of the wheel. This allows for smooth power delivery even when the suspension moves or the wheels are turned. It consists of an inner CV joint, an outer CV joint, and a connecting shaft, all protected by rubber boots filled with grease.

5. Pangropéa

Regular inspection of the drive half shaft is crucial for longevity and safe operation.

• Inspeksi Visual: Periodically check the rubber boots on both the inner and outer CV joints for cracks, tears, or signs of grease leakage. Damaged boots can lead to contamination and premature joint failure.
• Pariksa Noise: Listen for unusual noises, especially when turning or accelerating. Clicking or popping sounds during turns often indicate a failing outer CV joint, while vibrations during acceleration can point to an inner CV joint issue.
• Pamariksaan profésional: Have your vehicle's drivetrain components inspected by a qualified technician during routine service appointments.

6. Cara ngungkulan

If you experience any of the following symptoms, your drive half shaft may require attention:

Always address these symptoms promptly to prevent further damage to your vehicle's drivetrain.

7. Spésifikasi

8. Tips pamaké

• Verify Side Compatibility: Sateuacan meuliasing or installing, always confirm whether the specific part number (e.g., EQEA-2203010 or EQEA-2203010A) is for the left (driver's) or right (passenger's) side of your BYD Dolphin Mini or Seagull. This is a common inquiry among users.
• Pamasangan profésional: Given the critical role of the half shaft in vehicle safety and performance, professional installation is highly recommended.
• Hardware Anyar: Always use new axle nuts and cotter pins (if applicable) during installation to ensure proper torque and secure fastening.

9. Garansi jeung Rojongan

For warranty information, technical support, or assistance with part identification, please contact the seller or authorized BYD service center. Keep your purchase receipt as proof of purchase.