V1.0.0
4
Maintenance Rules
1. Metric tools should be made as available as possible in the maintenance of the scooter. Use of improper
tools may damage the scooter.
2 Clean off the dirt outside parts or assemblies of the chassis or braking system before guard removal from
the scooter or opening for maintenance.
3 Please clean parts and blow them with an air compressor after removal and before measurement of the
wearing value.
4 Rubber parts that have become aged or deteriorated are very easy to be damaged by the solvent or oil.
They should be checked or replaced if necessary before reassembly.
5. Multiple assemblies should be loosened in the sequence from outside to inside and beginning with small
ones.
6. Complex assemblies should be stored in a proper installation sequence for further assembling.
7 Extra attention should be paid to important fitting positions before disassembling. Parts that are no longer
to be used should be replaced before disassembly.
8 The bolt or screw length varies with assemblies and guards. Bolts or screws must be installed at correct
positions. A bolt can be placed into a bolt hole for fitness in case of confusion.
Important notes
1
．
Please use original parts made by Niu. Use of components that are not in compliance with design
specifications by Niu Company may cause damages to the scooter.
2
．
Maintenance operations can be performed only with metric tools. The metric bolts, nuts and screws can
not be interchanged with British fasteners.
3
．
The replacement with new washers, O rings, split pins and lock shims should be made for reassembly.
4
．
Bolts or nuts should be tightened by beginning with large-diameter bolts or inward bolts and then
gradually tightening to specified torques diagonally, unless otherwise indicated.
5
．
Clean components that have been removed with the detergent solution. All the sliding faces should be
lubricated before assembling.
6
．
Check all components for the proper installation and operating after assembly.
7
．
Remove the dirt and oil stains before measurement. Apply recommended lubricants to sections to be
lubricated during assembly.
8
．
Apply the lubricant to part surfaces to avoid rusting and dust accumulation, if the engine and transmission
systems need to be stored for a long time after disassembling.
Cable connector inspection
•
Loose cables constitute a risk to electric safety. Cables should be checked after their clamping to ensure
electric safety.
•
Bending of cable clamps towards welding points is not allowed.
•
Cables are bound at designated positions.
•
Cable placement at the scooter frame end or a sharp angle is not allowed.
•
Cable placement at the bolt or screw end is not allowed.
•
Cable placement should be made away from thermal sources or positions where cables may be stuck in
moving.
•
The cable placement along stem handles should not be made too tight or loose and should not interfere
with adjacent parts at any steering positions.
•
Cables should be placed smoothly without being twisted or tied.
•
Verify whether the connector shroud is damaged or the connector is excessively open before connecting.
•
Please protect the cable at a sharp angle or turning position with adhesive tapes or a hose.
•
Cables should be bound reliably with adhesive tapes after reparation.
•
Controlling cables should not be bent or twisted. The controlling would not be flexible if controlling cables
were damaged.
Summary of Contents for Kick Scooter KQi3
Page 1: ...V1 0 0 1 Kick Scooter KQi3 Service Manual Jiangsu Niu Electric Technology Co Ltd...
Page 20: ...V1 0 0 20 headlamp Section 4...
Page 25: ...V1 0 0 25 handlebar Section 5...
Page 27: ...V1 0 0 27 handlebar Section 5...
Page 34: ...V1 0 0 34 controller and battery pack Section 7 controller...
Page 35: ...V1 0 0 35 Lithium battery pro version sport version...
Page 42: ...V1 0 0 42 rear wheel and rear wheel fender Section 8 controller...
Page 49: ...V1 0 0 49 rear wheel and rear wheel fender Section 8 controller...
Page 59: ...V1 0 0 59 Wiring Diagram...
Page 60: ...V1 0 0 60 Fault Codes Dashboard Display and Screen Display in the Event of a Vehicle Fault...
Page 62: ...V1 0 0 62...
