BAFANG MM G510.750.C User manual

1
DEALER MANUAL FOR MOTOR
BF-DM-C-MM G510-EN November 2019
6.1 Introduction 
6.2 Specifications 3
6.2.1 Outline and geometric size 3
6.2.2 Surface 4
6.2.3 Storage Information 4
6.3 Drive Unit Installation 5
6.3.1 List of Tools to be used 5
6.3.2 Motor Installation 5
6.3.3 Cabling 7
6.3.4 Motor Cover Installation 9
6.3.5 Chain Wheel Installation 10
6.3.6 Crank Installation 10
6.3.7 External Speed Sensor Installation 11
6.4 Maintenance 12
CONTENT
6 DEALER MANUAL FOR M620
(MM G510.750/1000/1300.C)

2BF-DM-C-MM G510-EN November 2019
6.1 INTRODUCTION
•Product Model
MM G510.750.C
MM G510.1000.C
MM G510.1300.C
•Scope
Applies only to electrically powered pedelecs
developed or licensed by Bafang. It is suitable
for speed and cargo bikes, which have been
developed for road use. The engine is not
suitable for sport competitions.
•Identification
The following graphic, is the identification
numbers of the product, which are shown on
the housing:
Note: Content in the label is important informa-
tion about this product. Please do not remove
the information from the motor.

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DEALER MANUAL FOR MOTOR
BF-DM-C-MM G510-EN November 2019
6.2 SPECIFICATIONS
Motor model: MM G510 .750 / 1000 / 1300.C
Rated power (W) 750 / 1000 / 1300
Rated voltage (V) 48 / 52
Waterproof IP65
Certification CE / ROHS / EN14766
Outdoor Temperatures -20℃~45℃
6.2.1 Outline and geometric size

4BF-DM-C-MM G510-EN November 2019
Chain line(CL): 48 / 70mm
Shaft standard: ISIS
6.2.2 Surface
Shockproof black coating
6.2.3 Storage Information
The pedelec should be stored in a ventilated dry room. Avoid storing the pedelec near strong magnetic
objects.

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DEALER MANUAL FOR MOTOR
BF-DM-C-MM G510-EN November 2019
6.3 DRIVE UNIT INSTALLATION
6.3.1 List of Tools to be used
Use of the Tools Tools
To fasten bolts onto the frame adapter and the drive unit Internal hex wrench
To fasten nuts onto the frame adapter and the drive unit Socket spanner
To fasten screws on the motor cover and cable cover Cross screwdriver
To fasten or remove lock nuts on the chain wheel Special tools
To fasten M15 nuts onto the cranks Internal hex wrench
6.3.2 Motor Installation
1) Mount the motor on the frame.

6BF-DM-C-MM G510-EN November 2019
2) Align the three mounting holes of the drive unit with the mounting holes in the bike frame. From the
right of the bike frame insert three special M8 bolts (A) into the mounting holes in the bike frame and the
drive unit.
M8 Special bolts
M8 Flat washer-A
M8 Locknuts
Standard tool
A
B
C
D
3) From the left, fasten the three M8 Lock-nuts with a flat washer on the bike frame.
Tightening torque: 35 N.m.

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DEALER MANUAL FOR MOTOR
BF-DM-C-MM G510-EN November 2019
6.3.3 Cabling
Note: Please attention and make sure that the cable cannot be squeezed by the motor and frame.
6.3.3.1 Connection of the battery cables to the motor
The male connector (red/
positive) from the battery
The male connector (red/
positive) from the motor
The female connector (black/
negative) from the battery
The female connector (black/
negative) from the motor
A
B
a
b
Please connect the connectors from the motor and battery together.
6.3.3.2 Connection of the speed sensor to the motor
The female connector from
the motor
The male connector from the
speed sensor
E
e
Please connect the connectors from the motor and the speed sensor together.

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6.3.3.3 Connection of the EB-BUS to the motor
The male connector from
the motor
The female connector from
the EB-BUS cable
A
a
Please connect the connectors from the motor and EB-BUS cable together.
6.3.3.4 Connection of the headlight cable to the motor
The male connector from the
motor
The female connector from
the headlight cable
A
a
Please connect the connectors from the motor and the headlight cable together.
6.3.3.5 Connection of the taillight cable to the motor
The female connector from
the motor
The male connector from the
taillight cable
A
a
Please connect the connectors from the motor and the taillight cable together.

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DEALER MANUAL FOR MOTOR
BF-DM-C-MM G510-EN November 2019
6.3.3.6 Connection of the communication to the motor
The female connector from
the battery BMS
The male connector from the
motor
A
a
Please connect the connectors from the motor and the battery BMS together.
6.3.4 Motor Cover Installation
Motor cover
M3*8 star socket screws
A
B
Fasten the motor-cover with three screws M3*8 into in the frame adapter.
The torque requirement:1.5 N.m.

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6.3.5 Chain Wheel Installation
Chain wheel
Lock nut
Special tool
A
B
C
Put the chain wheel onto the spline shaft of the drive unit. Use a special tool to fasten the lock nut onto
the spline shaft. Torque: 35 Nm.
An impact wrench cannot be used.
6.3.6 Crank Installation
M15 inner hexagon screws
Right crank
Left crank
A
B
C
Mount the crank (B,C) on the axel, tighten M15 inner hexagon screws at both sides of the motor. (torque
requirement: 45-50N.m)

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DEALER MANUAL FOR MOTOR
BF-DM-C-MM G510-EN November 2019
6.3.7 External Speed Sensor Installation
Speed sensor
Magnet for the speed sensor
A
B
Fasten the mounting screws through the speed sensor and with a cross screwdriver. Tightening the
speed sensor onto the frame. Then place the rubber seal on the speed sensor hiding the screw. Torque
requirement: 1.5-2 N.m.
(Note: Please make sure the gap between the speed sensor and the magnetic unit is between 10 and 20
mm. When the magnet is not the correct distance, this can cause Error 21)
Now place the magnet on the spoke of the wheel ensuring it is aligned to the middle of the speed
sensor. And with a star key tighten the magnet in place. Torque requirement: 1.5-2 N.m.

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6.4 MAINTENANCE
• Maintenance must be carried out by autho-
rized 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 com-
ponents protected.
• Avoid using high-pressure cleaning jets.
• For prolonged storage, turn off the battery
and avoid storing near heat sources.