GreenWorks CU800 - Page 96

MOTOR AND DRIVING SYSTEM CU800 Service Manual
89
4
Driving mileage
decreased after full
electricity charged.
1. Check the battery.
Contact after-sales service or
re-match the battery.
2. Check the controller.
Change the damaged
controller.
3. Check the motor armature
winding for partial short circuit.
Change the damaged motor.
4. Check the cables.
Repair.
S/N
Failure
Inspection
Solution
5
Cannot run while
accelerating.
1. Check the power of the battery.
Charge the battery.
2. Check cables, whether the
function of acceleration
protection is broken or not.
Repair the cable or change the
damaged throttle sensor.
3. Check the connecting wires
between the batteries if
loose.
Fasten the fixing bolt of
conductor terminal.
4. Check the sensor socket of
motor if properly connected.
Reinsert the plug and socket,
to ensure good contact.
5. Check the motor armature
winding for turnoff.
Change the damaged motor.
6. Check the motor's field
winding for turnoff.
Change the damaged motor.
7. Check the controller for
damage.
Change the damaged
controller.
8. Check the sensor of
acceleration.
Change the damaged throttle
sensor.
9. Check the “forward / reverse”
switch for water penetration.
Remove the water form the
switch.
10.Check the switch of
“Forward/Reverse”.
Change the damaged switch.
6
Cannot reverse.
1. Check the switch of
“Forward/Reverse”
Change the damaged switch.
2. Check the controller.
Change the damaged
controller.
7
When the motor
rotate it makes noise.
1. Check the motor bearing for
damage.
Change the damaged bearing.
2. Check the spline of motor
output shaft for damage.
Change the damaged spline.