Generac Power Systems 04389-1, 04456-1, 04390-1 owner manual BUSHING, Governor Lower

Section 7 — Exploded Views and Parts Lists

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators

GT-990 Engine – Drawing No. 0D8674-E Part 1

ITEM	PART NO.	QTY.	DESCRIPTION		ITEM	PART NO.	QTY.	DESCRIPTION
1	0C5729	1	ASSEMBLY, CRANKCASE HOUSING WITH	36		0C2992	1	BUSHING, GOVERNOR LOWER
			SLEEVE	37		0C3971C	1	ASSEMBLY, DIPSTICK WITH HANDLE
2	0C3008	1	SEAL, 38 I.D. CRANKSHAFT	38		0C5305	1	TUBE, DIPSTICK
3	090388	8	SCREW, TAPTITE M6-1.0 X 12 YC	39		0C3027	1	O-RING, OIL CLR 3/8 X 1/2
4	0C5372	1	ASSEMBLY, BREATHER	40		0C3007	1	SEAL, 42 I.D. CRANKSHAFT
5	0C3005	1	GASKET, BREATHER COVER	41		0C5731	1	ASSEMBLY, HOUSING COVER WITH
6	0E1684	3	SEPARATOR, OIL BREATHER					SLEEVE
7	0D8067A	1	ASSEMBLY, HEAD #1 G&S	42		0C3006	9	SCREW, HHFC M10-1.5 X 55
8	071983	4	RETAINER, PISTON PIN 20	43		080318	8	SCREW HHFC M6-1.0 X 25
9	0C2981C	1	ROCKER, COVER NO OIL FILL	44		093064	1	ASSEMBLY, OIL FILL CAP
10	045761A	4	STUD M8-1.25/10MM X 30 G5 ZINC	45		0C8808	2	HOOK, LIFTING
11	0C5848	2	PISTON, HC	46		0D2723B	1	ROCKER, COVER WITH OIL FILL
12	021533	2	SET, PISTON RING 90MM	47		0C2979	2	GASKET, VALVE COVER
13	071980	2	PIN PISTON D20	48		086515	8	KEEPER, VALVE SPRING
14	0D4041	1	ASSEMBLY, CAMSHAFT & GEAR	49		0D2274	4	RETAINER, VALVE SPRING
15	0C2983	1	SHAFT, GOVERNOR	50		0D3867	4	SPRING, VALVE
16A	0C2985A	2	ROLLER BEARING, GOVERNOR PLATE	51		078672	2	SEAL, VALVE STEM D7
16B	0C2985B	1	ROLLER BEARING, GOVERNOR	52		0C5371	4	WASHER, VALVE SPRING
17	0D4042	1	ASSEMBLY,GOVERNOR GEAR	53		072694	4	STUD, ROCKER ARM PIVOT
18	0A7811	1	SPOOL, GOVERNOR MACHINED	54		0D3998	4	NUT HEX M8-1.0 G8 YEL CHR
19	0C2977	1	GASKET, CRANK CASE	55		0C3027	2	O-RING, 3/8" X 1/2"
20	0C5943	1	SEAL, OIL PASSAGE	56		0D5313	4	ROCKER ARM
21	0D4040E	1	ASSEMBLY, CRANKSHAFT HORIZONTAL	57		0D6024	2	PLATE, PUSH ROD GUIDE
			DIRECT DRIVE (GT-990)	58		0C2976	12	SCREW HHFC M8-1.25 X 65
	0D4122E	1	ASSEMBLY, CRANKSHAFT HORIZONTAL	59		086516	2	VALVE, EXHAUST
			DIRECT DRIVE (GT-760)	60		0C2229	2	VALVE, INTAKE
22	0C2969	2	ASSEMBLY, CONNECTING ROD (GT-990)	61		083897	4	TAPPET, SOLID
	0D3961	2	ASSEMBLY, CONNECTING ROD (GT-760)	62		0D8067B	1	ASSEMBLY, HEAD #2 G&S
23	0D2157	2	SCREW SHC M6-1.0 X 50 G8.8	63		0D9853D	4	PUSHROD, 147
24	0C5313	1	SCREEN, OIL PICKUP	64		0C2978	2	GASKET, HEAD
25	0D4123	1	ASSEMBLY, OIL PUMP	65		043790A	1	BARBED ELBOW 90 3/8NPT X 3/8
26	078699E	2	SLEEVE, SEAMED DOWEL 10 DIA.					L0CKTITE
27	0C3011	2	COVER, OIL RELIEF	66		0D4010	1	KIT GASKET
28	0C3009	2	SPRING, OIL RELIEF	67		0D4011	1	KIT PISTON & RINGS
29	0C3010	2	BALL, 1/2D OIL RELIEF	68		0D4012	1	KIT BREATHER ASSEMBLY
30	093873	2	WASHER, LOCK RIB M6	69		0D4013	1	KIT GOVERNOR ASSEMBLY
31	0C5315	1	GEROTOR, OUTER	70		0D8675A	1	KIT HEAD ASSEMBLY CYLINDER 1
32	0C5998	1	CLAMP, OIL TUBE	71		0D8675B	1	KIT HEAD ASSEMBLY CYLINDER 2
33	0D1667	1	ARM, GOVERNOR	72		0D4015	1	KIT OIL RELIEF
34	0C2991	2	E-RING, GOVERNOR ARM	73		0D4016	1	KIT GEAR COVER
35	0C2988	1	THRUST WASHER, GOVERNOR

Generac® Power Systems, Inc. 41