Ryobi GD125, Operator'S Manual

Page: 51 / 172

51 - English
MAINTENANCE
REPLACING THE HALL SENSORS
See Figure 93.
 Lower the power head and disconnect the rail assembly.

Remove the light cover.

Disconnect the LED board and button board wires from
the circuit board.

Set the light cover aside.
 Place the power head on a flat surface with the top of the
motor facing up.

Locate the old main and secondary hall sensors on top
of the motor.

Remove the old main hall sensor from the motor and
disconnect the main hall sensor wire from the circuit
board.

Connect the new main hall sensor to the motor and
connect the main hall sensor wire to the
main hall
connection on the circuit board, refer to schematic .

Remove the old secondary hall sensor from the motor
and disconnect the secondary hall sensor wire from the
circuit board.
 Connect the new secondary hall sensor to the motor and
connect the secondary hall sensor wire to the
secondary
hall connection
on the circuit board, refer to schematic .

Connect the LED board wire to the LED board connection
on the circuit board,
refer to schematic
.

Connect the button board wire to the key board
connection on the circuit board, refer to schematic .

Attach the light cover to the power head.
 Raise and mount the power head as described earlier.
REPLACING THE MOTOR
See Figures 93 and 94.

Lower the power head and disconnect the rail assembly.
 Remove the light cover.

Disconnect the LED board and button board wires from
the circuit board.

Set the light cover aside.

Place the power head on a flat surface with the top of the
motor facing up.

Disconnect the main and secondary hall sensor wires
from the circuit board.
 Disconnect the positive and negative leads for the motor
power cable from the circuit board.

Loosen and remove the motor bolts on the underside of
the motor.

Remove old motor and wires.

Place new motor in power head and secure with bolts.

Connect the main hall sensor wire to the
main hall
connection
on the circuit board, refer to schematic .

Connect the secondary hall sensor wire to the secondary
hall connection on the circuit board,
refer to schematic
.
Fig. 93
Fig. 94
Hall Sensor
(Secondary)
Motor Power
Cable
Hall Sensor
(Main)
Motor
Motor
Bolt
Motor
Bolt

Connect positive lead for the motor power cable to the
motor (+) connection and the negative lead to the motor
(-) connection on the circuit board,
refer to schematic
.

Connect the LED board wire to the LED board connection
on the circuit board,
refer to schematic
.

Connect the button board wire to the key board
connection on the circuit board, refer to schematic .

Attach the light cover to the power head.
 Raise and mount the power head as described earlier.