2-050
Electric System
5-5. Description and operation of engine stopper
Description
• Operation of the starter switch alone starts
and stops the engine. The major compo-
nents of this device are the engine stopper
and engine stop relay.
BR
B
Starter switch
Diode
3
5
6
1
2
65A
E
Battery relay
Battery
Fusible link
B
P1
P2
AR
E
Terminal D starts rotating
A
B
M
C
D
A
B
M
C
D
Insulated part
(shaded area)
SW8002036
Engine stop relay
Terminal D stops rotating
Engine
stopper
Operation
When starting:
• Turning the starter switch ON connects
starter switch terminal B to terminal BR to
energize the engine stop relay. In the engine
stop relay, terminal 3 connects with terminal
5. The current flows as follows: Battery
→
Battery relay
→
Terminal A of engine stop-
per
→
Terminal B of engine stopper
→
Terminal (5) of engine stop relay
→
Terminal
(3) of engine stop relay
→
Plus (+) terminal
of motor in engine stopper.
The motor is driven. (The control cable is
extended.) Terminal D rotates with the motor.
When insulated part of terminal D reaches
terminal B, the circuit between terminal A
and terminal B is open to cut off the current
from the battery.
The motor continues running by inertia.
When the metal part of terminal D makes
contact with terminal B, both poles of the
motor are earthed to stop the motor.
• In this state, the control cable is extended
completely, allowing the injection pump stop
lever to stay in the operating position. The
engine runs.
When starting the engine:
Summary of Contents for SW800 Series
Page 1: ...CONFIDENTIAL SHOP MANUAL Series ...
Page 2: ......
Page 4: ......
Page 6: ......
Page 7: ...SPECIFICATIONS ...
Page 8: ......
Page 9: ...1 001 SPECIFICATIONS 1 External Views and Specifications 1 1 SW800 1 002 1 2 SW850 1 003 ...
Page 12: ...MEMO ...
Page 13: ...STRUCTURE OPERATION ...
Page 14: ......
Page 32: ...2 018 ...
Page 68: ...INSPECTION ADJUSTMENT ...
Page 69: ......
Page 73: ...3 101 ...
Page 88: ...TROUBLESHOOTING ...
Page 89: ......
Page 114: ...4 219 Troubleshooting for Electric System ...