Generac Power Systems 04758-2, 04759-2, 04760-2 Exploded Views and Parts Lists, Part No. Qty

Page 39
PART NO. QTY.

Section 7 — Exploded Views and Parts Lists

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators GT-990 Engine – Drawing No. 0E8774-J Part 1

ITEM

PART NO. QTY.

DESCRIPTION

1

0C5729

1

ASSEMBLY, CRANKCASE HOUSING WITH

 

 

 

SLEEVE

2

0E9843

1

SEAL, 38 I.D. CRANKSHAFT

3

090388

3

SCREW, TAPTITE M6-1.0 X 12 YC

4

0C5372

1

ASSEMBLY, BREATHER

5

0C3005

1

GASKET, BREATHER COVER

6

0E3372B

3

SEPARATOR, OIL BREATHER

7

0D8067A

1

ASSEMBLY, HEAD #1 G&S

8

071983

4

RETAINER, PISTON PIN 20

9

0C2981C

1

ROCKER, COVER NO OIL FILL

10

045761A

4

STUD M8-1.25/10MM X 30 G5 ZINC

11

0E2985

2

PISTON, HC

12

021533

2

SET, PISTON RING 90MM

13

0E1466

2

PIN PISTON

14

0D4041

1

ASSEMBLY, CAMSHAFT & GEAR

15

0C2983

1

SHAFT, GOVERNOR

16A

0C2985A

2

ROLLER BEARING, GOVERNOR PLATE

16B

0C2985B

1

ROLLER BEARING, GOVERNOR

17

0D4042

1

ASSEMBLY,GOVERNOR GEAR

18

0A7811

1

SPOOL, GOVERNOR MACHINED

19

0C2977

1

GASKET, CRANK CASE

20

0C5943

1

SEAL, OIL PASSAGE

21

0E4357E

1

ASSEMBLY, CRANKSHAFT HORIZONTAL

 

 

 

DIRECT DRIVE

22

0E3223

2

ASSEMBLY, CONNECTING ROD

23

0D2157

2

SCREW SHC M6-1.0 X 50 G8.8

24

0E6098

1

SCREEN, OIL PICKUP

25

0D4123A

1

ASSEMBLY, OIL PUMP

26

078699E

2

SLEEVE, SEAMED DOWEL 10 DIA.

27

0C3011

2

COVER, OIL RELIEF

28

0C3009

2

SPRING, OIL RELIEF

29

0C3010

2

BALL, 1/2D OIL RELIEF

30

093873

2

WASHER, LOCK RIB M6

31

0C5315

1

GEROTOR, OUTER

32

0C5998

1

CLAMP, OIL TUBE

33

0D1667

1

ARM, GOVERNOR

34

0C2991

2

E-RING, GOVERNOR ARM

35

0C2988

1

THRUST WASHER, GOVERNOR

36

0C2992

1

BUSHING, GOVERNOR LOWER

ITEM

PART NO. QTY.

DESCRIPTION

37

0C3971C

1

ASSEMBLY, DIPSTICK WITH HANDLE

38

0C5305

1

TUBE, DIPSTICK

39

0C3027

1

O-RING, OIL CLR 3/8 X 1/2

40

0E9842

1

SEAL, 42 I.D. CRANKSHAFT

41

0C5731

1

ASSEMBLY, HOUSING COVER WITH

 

 

 

SLEEVE

42

0C3006

9

SCREW, HHFC M10-1.5 X 55

43

080318

8

SCREW HHFC M6-1.0 X 25

44

093064

1

ASSEMBLY, OIL FILL CAP

45

0C8808

2

HOOK, LIFTING

46

0D2723B

1

ROCKER, COVER WITH OIL FILL

47

0C2979

2

GASKET, VALVE COVER

48

086515

8

KEEPER, VALVE SPRING

49

0D2274

4

RETAINER, VALVE SPRING

50

0D3867

4

SPRING, VALVE

51

078672

2

SEAL, VALVE STEM D7

52

0C5371

4

WASHER, VALVE SPRING

53

072694

4

STUD, ROCKER ARM PIVOT

54

0D3998

4

NUT HEX M8-1.0 G8 YEL CHR

55

0C3027

2

O-RING, 3/8" X 1/2"

56

0D5313

4

ROCKER ARM

57

0D6024

2

PLATE, PUSH ROD GUIDE

58

0C2976

12

SCREW HHFC M8-1.25 X 65

59

086516

2

VALVE, EXHAUST

60

0C2229

2

VALVE, INTAKE

61

083897

4

TAPPET, SOLID

62

0D8067B

1

ASSEMBLY, HEAD #2 G&S

63

0D9853D

4

PUSHROD, 147

64

0C2978

2

GASKET, HEAD

65

043790A

1

BARBED ELBOW 90 3/8NPT X 3/8 L0CKTITE

66

0D4010

1

KIT GASKET

67

0D4011

1

KIT PISTON & RINGS

68

0D4012

1

KIT BREATHER ASSEMBLY

69

0D4013

1

KIT GOVERNOR ASSEMBLY

70

0D8675A

1

KIT HEAD ASSEMBLY CYLINDER 1

71

0D8675B

1

KIT HEAD ASSEMBLY CYLINDER 2

72

0D4015

1

KIT OIL RELIEF

73

0D4016

1

KIT GEAR COVER

Generac® Power Systems, Inc. 37

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Page 38 Page 40
Contents Installation and Owner’s Manual Models 04758-2 6 kW NG, 7 kW LP 04759-2 12 kW NG, 12 kW LP04760-2 13 kW NG, 15 kW LP This manual should remain with the unitINTRODUCTION ‹ CONTENTS‹ OPERATION AND MAINTENANCE ‹ HOW TO OBTAIN SERVICEIntroduction during operation. Exercise care near running generators GENERAL HAZARDSDespite the safe design of this generator Parts of the generator are rotating and/or hot‹ STANDARDS INDEX ELECTRICAL HAZARDSFIRE HAZARDS EXPLOSION HAZARDSDANGER 1.1 UNPACKING/INSPECTION1.2 PROTECTION SYSTEMS 1.3 SYSTEM SET LED1.4 THE GENERATOR Figure 1.1 - 7 kW, Single Cylinder GH-410 EngineFigure 1.2 - 12 kW/15 kW, V-twin GT-990/760 Engine 1.5 SPECIFICATIONS ‹ 1.5.1 GENERATOR‹ 1.5.2 ENGINE DANGER 1.8 RECONFIGURING THE FUEL SYSTEM1.6 FUEL REQUIREMENTS AND RECOMMENDATIONS 1.7 FUEL CONSUMPTIONFigure 1.4 - Demand Regulator 1.9 LOCATION1.8.2 12KW AND 15KW, 990CC ENGINES 1.9.1 GENERATORFigure 1.5 - Battery Cable Connections 1.10 BATTERY INSTALLATION1.11 THE BATTERY 1.9.2 TRANSFER SWITCH 1.9.2.1 7 kW, 12 kW and 15 kW Units2.2 CHECK TRANSFER SWITCH OPERATION 2.1 BEFORE INITIAL START-UP2.3 ELECTRICAL CHECKS 2.5 CHECKING AUTOMATIC OPERATION 2.4 GENERATOR TESTS UNDER LOAD2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLY Figure 2.2 - Placement of RegulatorFigure 2.1 - Dual Fuel Regulators Figure 2.5 - V-twin Full Load Speed Adjust Screw 2.7 ENGINE GOVERNOR ADJUSTMENTFigure 2.4 - V-twin Engine Governor Adjustment Figure 2.3 - Single Cylinder Engine Governor AdjustmentFigure 2.6 - Voltage Adjustment Potentiometer 2.8 VOLTAGE REGULATOR ADJUSTMENT3.1 BREAK-IN PROCEDURE 3.2 USING THE AUTO/OFF/MANUAL SWITCH FIGURE‹ 3.5.1 TRANSFER TO GENERATOR POWER SOURCE 3.3 AUTOMATIC TRANSFER OPERATION3.5 MANUAL TRANSFER OPERATION 3.4 SEQUENCE OF AUTOMATIC OPERATIONFigure 3.2 - Manual Transfer Switch Operation ‹ 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE‹ 3.7.1 LOW OIL PRESSURE SWITCH ‹ 3.7.2 HIGH TEMPERATURE SWITCH‹ 3.7.3 OVERCRANK Figure 3.3 - Low Oil Pressure and High Temperature Switches4.2 CHECKING THE ENGINE OIL LEVEL 4.1 FUSE4.4 CHANGING THE OIL FILTER 4.5 CHANGING THE ENGINE AIR CLEANER‹ 4.3.2 OIL CHANGE PROCEDURE 4.3 CHANGING THE ENGINE OILFigure 4.8 - Setting the Spark Plug Gap 4.7 BATTERY MAINTENANCEFigure 4.6 - 7 kW, Engine Air Cleaner Location Figure 4.7 - 12 kW and 15 kW Engine Air Cleaner4.8 ADJUSTING VALVE CLEARANCE Figure 4.10 - Valve Clearance Adjustment4.9 COOLING SYSTEM 4.10 ATTENTION AFTER SUBMERSION 4.12 OUT OF SERVICE PROCEDURE‹ 4.12.2 RETURN TO SERVICE ‹ 4.12.1 REMOVAL FROM SERVICE4.13 SERVICE SCHEDULE CORRECTION 5.1 TROUBLESHOOTING GUIDEPROBLEM CAUSE24 Generac Power Systems, Inc ENGINE WIRINGSection 6 - Electrical Data CONTROL PANEL BOX CUSTOMERCONNECTION 26 Generac Power Systems, Inc Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-BSection 6 - Electrical Data Section 6 - Electrical Data 28 Generac Power Systems, IncCUSTOMER 30 Generac Power Systems, Inc 225A224A Electrical Schematic - 7 kW - Drawing No. 0D9014-C 32 Generac Power Systems, Inc Section 7 - Exploded Views and Parts ListsPART NO. QTY. DESCRIPTION 34 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists 36 Generac Power Systems, Inc 27, 2835, 36, 40 DESCRIPTION PART NO. QTY38 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists 14 20 40 Generac Power Systems, Inc1.25 FT 1.8 FT42 Generac Power Systems, Inc 2.6 FT 3 FT1.33 FT 44 Generac Power Systems, Inc DESCRIPTION 46 Generac Power Systems, Inc DESCRIPTION 48 Generac Power Systems, Inc DESCRIPTION Guardian Air-cooled 7 kW, 12 Drawing No. 0D3739-B 50 Generac Power Systems, IncALL DIMENSIONS IN MILLIMETERS INCHES Section 8 - MountingSection 9 - Notes CALIFORNIA AND FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONSMANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIESEMISSION RELATED PARTS INCLUDE THE FOLLOWING EMISSION CONTROL SYSTEM WARRANTYTHIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIANPREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS WARRANTY SCHEDULE
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