6-22
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TROUBLESHOOTING
"Blade motor blocked" MESSAGE
"Outside loop" MESSAGE
No continuity
Replace the main wire harness.
Blade motor trouble.
Replace the blade motor (page 9-2).
Measure the resistance between the blade
motor 8P connector
terminals.
Blade motor winding: 0.6 - 1.8
Ω
·No.5 terminal (Black) - No.6 terminal (White)
·No.5 terminal (Black) - No.7 terminal (Red)
·No.6 terminal (White) - No.7 terminal (Red)
Check for continuity between the main ECU
30P connector
and display 8P
connector
of main wire harness.
·30P connector
No.18 terminal (Brown)
- 2P connector
No.8 terminal (Brown)
Continuity
Main ECU trouble.
Replace the main ECU (page 10-7).
Normal
Abnormal
Yes
Change the station (pulse signal) type in the
set up (page 3-13).
Move HRM300/500 in the mowing zone, and
then recheck the warning message in the
display.
Normal
Abnormal
Temporary failure.
Other lawnmowers are near the mowing zone.
No
Check whether the boundary wire terminal is
correctly connected to the station (page 3-12).
Abnormal
Connect the boundary wire terminal to the
station correctly.
Normal
Check for continuity the boundary wire.
Abnormal
Repair the boundary wire.
Normal
Main ECU trouble.
Replace the main ECU (page 10-7).
Содержание HRM300
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