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User’s Handbook, TSL 4186E, Issue 2 17
4012/16 Diesel
4012 engine wiring diagram (twin starters and electronic governor)
(1) To operate only in conjunction with overspeed fault.
Notes:
z All switches are shown with the engine at rest.
z The diagram refers to standard engine wiring on engines fitted with a terminal box.
Item Description Item Description
A1 Engine fitted terminal box A13 Overspeed
A2 Oil pressure switch A14 'A' bank engine fault switches
A3 Starter motor 1 A15 'B' bank engine fault switches
A4 Starter motor 2 A16 Water temperature
A5 Battery charging alternator A17 Water temperature
A6 Start inhibit relay A18 Oil pressure
A7 Emergency stop switch A19 Oil pressure
A8 Starter relay A20 Magnetic pick-ups
A9
Two air shutoff solenoid valves energise to
stop
(1)
. Must be manually reset after operating
A21 Engine flywheel
A22 Electronic governor control box
A10 Fuel stop solenoids energised to run A23 Electronic governor actuator
A11 Two switch speed unit A24 Typical linking box to controller
A12 Speed ref.
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