Bafang H400 (FM G312.250.D) Dealer Manual
Model: FM G312.250.D
Content
6.1 Introduction
This manual applies only to electrically powered pedelecs developed or licensed by Bafang. It is suitable for city and trekking bikes, which have been developed for road use. The motor is not suitable for sport competitions.
Identification
The following graphic shows the identification numbers of the product, which are shown on the housing:
Note: Content in the label is important information about this product. Please do not remove the information from the motor.
Product Model: FM G312.250.D
[Image description: Two views of the Bafang motor, showing the front and rear with cables. One view highlights the product model and identification numbers on the motor housing.]
6.2 Specifications
| Motor model | FM G312.250.D |
| Rated power (W) | 250 |
| Rated voltage (V) | 36 |
| Waterproof | IPX5 |
| Certification | CE-EMC |
| Outdoor Temperatures | -20 °C~45 °C |
6.2.1 Outline and geometric size
[Image description: A technical drawing of the Bafang motor with dimensions indicated. Key dimensions include OLD: 100mm, Shaft length: 142mm, and Motor cable length: L=250mm (Optional). Various diameters and lengths are detailed.]
OLD: 100mm
Shaft length: 142mm
Motor cable length: L=250mm (Optional)
6.2.2 Surface
Shockproof black and silver coating.
6.2.3 Storage Information
The pedelec should be stored in a ventilated dry room. Avoid storing the pedelec near strong magnetic objects.
6.3 Drive Unit Installation
6.3.1 List of Tools to be used
| Use of the Tools | Tools |
|---|---|
| To fasten BC3/8 cap lock nuts | Open-end wrench [?] |
| To fasten the screws on disk brake | Internal hex wrench [⚙️] |
6.3.2 Motor Installation
- First, fix the disc brake on to the non-cable side of the motor and insert the stop pin on to the shaft. [Image description: Illustration showing the disc brake being attached to the motor's non-cable side and the stop pin inserted into the shaft.]
- Insert the motor into the frame. [Image description: Illustration showing the motor being placed into the bicycle frame.]
- Mount one 2mm washer on both sides of the frame. [Image description: Illustration showing 2mm washers being placed on either side of the frame where the motor will be mounted.]
- Fasten clockwise BC3/8 cap lock nut with an open-end wrench at both ends of the motor. Torque requirement: 30-36 N.m. [Image description: Illustration showing the BC3/8 cap lock nuts being tightened with an open-end wrench on both sides of the motor.]
6.4 Maintenance
- Maintenance must be carried out by authorized personnel with the correct equipment.
- Do not disassemble the motor.
- Do not use thinners or other solvents to clean the components. Such substances can damage the surfaces.
- Avoid water submerging, to keep the components protected.
- Avoid using high-pressure cleaning jets.
- For prolonged storage, turn off the battery and avoid storing near heat sources.
