Guardian Technologies 4451 & 4986, 4582 & 4987, 4583, 5308 manual IM1 SP1 IM2 SP2 RED Black Battery

Section 4

ENGINE DC CONTROL SYSTEM

11B

	11B
0	120/240V	22	22	22
120/240V
50A	30A		120V/30A	120V/30A
	TWISTLOK		TWISTLOK	TWISTLOK

120V	120V
DUPLEX	GFCI
TEST	RESET
TEST	RESET

0	44A	11A	0	44B	0	11D	0	44D	22	0	11C	22	0	44C
C.B.		22		C.B.		C.B.		C.B.			C.B.			C.B.
30A		C.B.		30A		30A		30A			20A			20A
	11	50A				11					11
	22					22					22
	0					0					0
	44					44					44

C2-12
0	0
C2-7		0
14	14
C2-5		FSS
86	86
	LOP	0
		0

86 0

	C2-2
	15		15
	C2-10
	15		15
	C2-4		15
	167		167
	C2-3		SW1
15	0	0	17	0
	C2-8		0
	17		17

LEGEND

BA - BRUSH ASSEMBLY

BCR1 - BATTERY CHARGE RECTIFIER, 10A BCR2 - BATTERY CHARGE RECTIFIER CB1 - 10AMP AUTO RESET BREAKER CB2 - 5AMP AUTO RESET BREAKER

D1 - 600V 12A DIODE

D2, D3 - ENGINE SHUTDOWN DIODE F1 - 10A FUSE

FSS - FUEL SHUT OFF SOLENOID GND - GROUND BAR

I.C.T. - IDLE CONTROL TRANSFORMER IM1 - IGNITION MODULE, CYL. 1

IM2 - IGNITION MODULE, CYL. 2

LOP - LOW OIL PRESSURE

R1 - 25 OHM, 25W RESISTOR

SC - STARTER CONTACTOR

SCR - STARTER CONTACTOR RELAY SM - STARTER MOTOR

SP1 - SPARK PLUG, CYL. 1

SP2 - SPARK PLUG, CYL. 2

	C2-1
18	18
17
	C2-6
13	13
15	C2-11
13	13

13

SCR		SC
	C2-9	16
17	16

D2

IM1

SP1

D3

IM2

SP2

RED

SC

SM

BLACK

BATTERY 12V

SSR - START / STOP RELAY SW1 - START-RUN-STOP SWITCH SW2 - IDLE CONTROL SWITCH TB1, TB2 - TERMINAL BLOCK

=12 VDC SUPPLY

=12 VDC CONTROL

=AC POWER

=GROUND

With the Start-Run-Stop Switch (SW1) held in the start position, Wire 15 is now connected to Wire 167. Wire 15 supplies fused battery power via Wire 167 to the Printed Circuit Board. This 12 VDC input signals the Printed Circuit Board to internally ground Wire 229 which is connected to the coil of the Start-Stop-Relay (SSR). This action allows current to flow and the SSR is energized. The normally open contacts close supplying battery power from Wire 15 to Wire 14. Wire 14 supplies power to the Fuel Shutoff Solenoid (FSS), it is energized and fuel is available to the engine. Wire 14 supplies power through Resistor (R1) and Diode (D1) to Wire 4, Wire 4 connects to the field or the Rotor assembly and is used as Field Boost. The second set of normally open contacts also close connecting Wire 15 12 VDC battery supply to Wire 15B. Wire 15B now supplies 12 VDC to the printed circuit board for use with the governor control system. The normally closed contacts now open, Wire 18 is no longer con- nected to Wire 0 and the magnetos are no longer grounded out and can produce spark.

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