Guardian Technologies 4583, 4582 & 4987, 4451 & 4986, 5308 manual Circuit Condition RUN

Section 4

ENGINE DC CONTROL SYSTEM

POWER WINDING	DPE WINDING	BA
BATTERY CHARGE WINDING		FIELD

	77A											66A
										55A												2	6	4	0
C1-5													C1-4			44S	44	22		11	11S
							C1-3														C1-1	C1-6	C1-7	C1-11	C1-12
			10A BATTERY CHARGE WINDING													C1-2			I.C.
		77										66
																		RED
	C1-10											C1-9
										55						44S					11S	2	6	4	0
																				I.C.T.
															66A
							C1-8
77A
																		I.C.T.
																								11
														66										22
																		BLK						0
77
																		44						44
																		66A				0
																				15
																	77A	BCR1
																			BCR2	12Vdc
																	66	CB1							0
																		13A	15A		0
				77													77
																BLK						2
							1			0										0			15
																		CB2
																								4	14
							2		162									162		2
																							6
ELECTRONIC							3		11S											11S		0		D1	R1
	VOLTAGE
REGULATOR							4			4								4						4	14
							5		44S					44S
							6			6											6
																		15					15
															86									86
											0									0
86										15B
0											229							167						167
	15B
		229																83			0
			167															SW2
																							15
				83
																									14
							TB1				TB2							18							18
																		14						14
																								15	13
																				15					F1
																15									15
																									GOVERNOR
												18		14		229									ACTUATOR
												0	15B					15
		44S			86		167		TR1		15B					14
11S				229		TR2		0		83		4	6	5		SSR
12	11	10	9	8	7	6	5	4	3	2	1	12		10	9
J2						CONTROL							15			13
					PRINTED CIRCUIT							0		15		15
J1							BOARD

CIRCUIT CONDITION - RUN:

Once the engine has started the Start-Run-Stop Switch (SW1) is released and will be in the run position, at this point SW1 is not activated. This action will de-energize the Starter Contactor Relay (SCR) causing the Starter Motor to disengage.

Printed circuit board action keeps Wire 229 held to ground this action holds the Start-Stop Relay (SSR) energized. With the SSR energized Wire 14 maintains 12 VDC to the Fuel Shutoff Solenoid. Once the Voltage Regulator starts functioning the field boost circuit is no longer a factor in operation. With the SSR energized Wire 15B main- tains 12 VDC to the printed circuit board. With the SSR energized Wire 18 is not grounded and the magnetos con- tinue to produce spark.

The two independent battery charge windings are now producing AC voltage and supplying this to BCR1 and BCR2. The AC voltage is rectified through BCR1 and used to supply DC voltage to the 12 VDC accessory outlet. The AC voltage is rectified through BCR2 and used to supply DC voltage to the battery for battery charging.

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