
Key Switch
Use the key switch to start, operate, or stop the
engine.
Switching the electrical circuits in 4 stages
allows control of various electrical components.
Key Position and Device Operation
ON (Run)
When the key position is "ON," each part is
energized via the fuse from the battery,
which makes them operable.
51ealk-002
STOP
START
GLOW
ON
OFF
ON (Run)_001
Glow (Thermo-Start)
When the ignition key is kept in the "GLOW"
position, the glow plug is generating heat
and the thermo-start lamp is turned on.
The lamp turns off at the specified time.
However, the lamp turning off is not related
to the glow plug generating heat, and the
plug is kept heated as long as the key is in
"GLOW" position even after the lamp is
turned off.
The glow lamp will stay illuminated for five
seconds.
The glow plug is located on the engine head
of each cylinder and is connected by a
power cable and the plate.
The negative is the engine block.
STOP
START
GLOW
ON
OFF
6raejy-004
Glow (Thermo-Start)_001
■
■
START
The engine starts by rotating the starter
motor, when the magnet switch of the starter
motor is energized with the key at "START"
position.
The electrical circuit of the starter motor is
such that it does not turn unless the engine
activation conditions of the interlock system
are satisfied.
"Interlock System Operation Requirements"
(Page 5-12)
pff35r-002
STOP
START
GLOW
ON
OFF
START_001
Inspection of Key Switch
The key switch can be determined to be good
or faulty by measuring its continuity using a
circuit tester.
Remove the key switch from the main
vehicle.
Use a circuit tester to measure the
continuity between the terminals when
changing the key switch and check that it is
in the following condition.
OFF: no continuity between all terminals.
ON: continuity between B and AC, no
continuity elsewhere.
GLOW: continuity between B and AC and
19, no continuity between 50 and
elsewhere.
START: continuity between all terminals.
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1.
2.
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LM551
Electrical System
Page 5-26
About The Electrical Components
Содержание LM551
Страница 1: ...5 Unit Reel Mower Service Manual Serial No LM551 10001 Ver 1 0 ...
Страница 4: ...LM551 Introduction ...
Страница 6: ...LM551 Contents ...
Страница 12: ...LM551 Safety Page 1 6 Safety Signs and Instruction Signs ...
Страница 38: ...LM551 Maintenance Standards and Maintenance Page 3 24 Greasing ...
Страница 86: ...LM551 Hydraulic System Page 4 48 Measurement ...
Страница 144: ...LM551 Electrical System Page 5 58 About The Electrical Components ...
Страница 200: ...LM551 Troubleshooting Page 7 10 Mower Unit Related ...
Страница 201: ...Specifications Page 8 2 Maintenance Schedule Page 8 4 List of Consumables Page 8 9 Reference LM551 Reference Page 8 1 ...
Страница 212: ...LM551 Reference Page 8 12 List of Consumables ...