Yamaha JW-II Service Manual page 23

Service At Delivery
I Concept of the Power Assist System
<Outline of the Power Assist System>
•
With the , the system conditions in the various modes, such as the manual travel
mode, the stand-by mode, and the power assisted travel mode, vary depending on
whether the main switch is on or off, and on how the hand rims are operated. Also,
the is designed so that a braking function is activated if the main switch is on but
the hand rims are not operated for a certain period of time.
Manual travel
Power off
Brake function off
Switch off
Switch
on
Power assist off
Switch
Brake function on
off
Auto- power off condition
Power off
Brake function on
Outline of the Running Control System
NOTE:
•
Most of the wires are micro current signal
lines.
•
When handling them, be careful not to cut or
damage the wires.
•
Always remove the battery when disassem-
bling or performing maintenance.
•
Do not apply any lubrication oil to the connec-
tor portion.
Stand-by
Power on
Stop condition
maintained for
No hand rim
operation for 5
consecutive minutes
20
Power assisted travel
Hand rim
operation
Power on
Power assist on
10 seconds