Generac Power Systems Guardian 04389-2 Installation And Owner'S Manual Download Page 44

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Section 7 — Exploded Views and Parts Lists

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
GT-990/760 Engine – Drawing No. 0D8674-G Part 2

Summary of Contents for Guardian 04389-2

Page 1: ...ed Prepackaged Automatic Standby Generators Models 04389 2 6 kW NG 7 kW LP 04456 2 12 kW NG 12 kW LP 04390 2 13 kW NG 15 kW LP DEADLY EXHAUST FUMES OUTDOOR INSTALLATION ONLY DANGER Not intended for us...

Page 2: ...potential fire hazard This symbol points out potential electrical shock hazard The operator is responsible for proper and safe use of the equipment Generac strongly recommends that the operator read...

Page 3: ...or Tests Under Load 11 2 5 Checking Automatic Operation 11 2 6 Adjusting the Regulator Natural Gas Only 12 2 7 Engine Governor Adjustment 13 2 8 Voltage Regulator Adjustment 13 Section 3 Operation 14...

Page 4: ...y in strict compli ance with applicable codes and standards Following installation do nothing that might ren der the system unsafe or in noncompliance with such codes and standards Keep hands feet clo...

Page 5: ...talled in accordance with the manufacturer s instructions and recommendations Following proper installa tion do nothing that might alter a safe installation and render the unit in noncompliance with t...

Page 6: ...anel to noti fy personnel that one of these faults has occurred There is also a System Set LED that is lit when all of the conditions describe in Section 1 3 are true 1 3 NEC REQUIREMENT FOR ARC FAULT...

Page 7: ...Panel Battery Compartment Fuel Inlet Air Filter Exhaust Enclosure Oil Filter Data Decal Fuel Regulator Oil Check Fill Control Panel Air Filter Exhaust Enclosure Battery Compartment Fuel Inlet Oil Filt...

Page 8: ...tude engine power and condition etc Maximum power decreases about 3 5 percent for each 1 000 feet above sea level and also will decrease about 1 percent for each 6 C 10 F above 16 C 60 F ambient tempe...

Page 9: ...sure proper gas pressure 11 14 to the gen erator Low gas pressure can cause hard starting and could affect engine durability 1 8 FUEL CONSUMPTION Natural gas is in cubic feet per hour LP is in gallons...

Page 10: ...P fuel turn the adjuster screw that can be accessed from inside the front of the unit TURN CLOCKWISE This should now set the system for maximum power and best performance 14 It may be necessary to mak...

Page 11: ...battery installed and utility power source voltage available to the transfer switch the battery receives a trickle charge while the engine is not running to prevent self discharge The trickle charger...

Page 12: ...rn OFF the utility power supply to the transfer switch using the means provided such as the utility main line circuit breaker 4 Turn OFF all loads connected to the transfer switch terminals T1 and T2...

Page 13: ...e means provided such as a util ity main line circuit breaker Do not attempt manual transfer switch opera tion until all power voltage supplies to the transfer switch have been positively turned off F...

Page 14: ...enerator confirm that the No Load Frequency with the roof open and door off is set to 63 63 5 Hz Transfer load to emergency circuits 3 Turn on appliances lights pumps etc that are on the emergency cir...

Page 15: ...Engine Governor Adjustment 2 7 2 12 KW AND 15 KW UNITS 1 Loosen governor clamp bolt See Figure 2 3 2 Completely remove the idle spring 3 With governor arm at wide open throttle position rotate govern...

Page 16: ...ce the oil with synthetic oil as recommended in Section 4 3 Changing the Engine Oil 13 Reconnect the battery cables as outlined in General Hazards page 2 and insert the 5A and 15A fuses into the gener...

Page 17: ...tage has reached 50 percent of the nominal rated voltage transfer to standby can occur D Utility Voltage Pickup Sensor This sensor monitors utility power supply volt age When that voltage is restored...

Page 18: ...AUTO OFF MANUAL switch is set to AUTO 2 Hold down the Set Exercise Time switch until the generator starts approximately 10 seconds and then release 3 The generator will start and run for approximate...

Page 19: ...ap down and rotate counterclockwise Figure 4 1 Generator Control Panel 4 2 CHECKING THE ENGINE OIL LEVEL For oil capacities see Specifications Section 1 5 For engine oil recommendations see Section 4...

Page 20: ...e the engine oil filter as follows 1 With the oil drained remove the old oil filter by turning it counterclockwise 2 Apply a light coating of clean engine oil to the gas ket of the new filter See Sect...

Page 21: ...battery in a fire The battery is capable of exploding A battery presents a risk of electrical shock and high short circuit current The following precautions are to be observed when working on batteri...

Page 22: ...creen at the front of the engine to gain access to the flywheel nut Use a large socket and socket wrench to rotate the nut and hence the engine While watching the piston through the spark plug hole Th...

Page 23: ...ag to the engine indicating the viscosity and classification of the oil in the crankcase 8 Remove the spark plug s and spray fogging agent into the spark plug s threaded openings Reinstall and tighten...

Page 24: ...aler Y Yearly if Repair is Needed FUEL Fuel lines and connections X M LUBRICATION Oil level X M Oil X AFTER BREAK IN AND Y Oil filter X AFTER BREAK IN AND Y COOLING Enclosure louvers X X W BATTERY Rem...

Page 25: ...r plugged 1 Check replace air cleaner and runs rough or damaged 2 Defective spark plug s 2 Clean re gap or replace plug s 3 Fuel Regulator not set 3 Set Fuel Regulator 4 Fuel Pressure incorrect 4 Conf...

Page 26: ...O OFF MANUAL SWITCH LOP LOW OIL PRESSURE SWITCH IM2 IGNITION MODULE CYLINDER 2 IM1 IGNITION MODULE CYLINDER 1 SCR STARTER CONTACTOR RELAY FS FUEL SOLENOID SP1 SP2 SPARK PLUGS SC STARTER CONTACTOR IC I...

Page 27: ...7 VOLTAGE REGULATOR 15A 23 13 351 13 13 13A 13 13 0 0 N2 N1 351 0 66A 4 162 0 4 6 0 4 162 6 239 AUTO SW1 1 1b 1a SW2 CONNECTION CUSTOMER SWITCH CONTACTOR 240V GENERATOR 0 CB1 23 N1 N2 194 351 66A 55 7...

Page 28: ...CHARGE RELAY DIAGRAM KEY SC STARTER CONTACTER 2 1 5 3 4 J2 2 1 3 2 1 14 16 17 12 10 9 J1 7 5 3 2 1 F2 FUSE 5 AMP BA BRUSH ASSEMBLY CB2 CIRCUIT BREAKER ALT EXCITATION D DIODE SCR STARTER CONTACTOR RELA...

Page 29: ...IM1 0 194 17 15 23 15 239 SW1 194 15A 22 11 23 11 22 11 SP1 44 WINDING 120V 120V 33 NEUTRAL N2 N1 23 CUSTOMER CONNECTIONS 194 0 0 SC FS 16 14 BATTERY CUSTOMER SUPPLIED SM 12V SC N2 N1 13 TX 56VA 1VA C...

Page 30: ...TEMPERATURE SWITCH GRD CONTROL PANEL GROUND FS FUEL SOLENOID SW1 AUTO OFF MANUAL SWITCH LOP LOW OIL PRESSURE SWITCH IM IGNITION MODULE F2 FUSE 5 AMP F1 FUSE 15 AMP SP SPARK PLUG TB INSULATED TERMINAL...

Page 31: ...0 13 F1 13 351 14 N2 0 224 225 0 351 13 224 4 0 225 14 N2 N1 13A N1 VOLTAGE REGULATOR 0 66A 0 162 22 0 4 6 11 4 4 11 22 4 MANUAL AUTO 17 15 SW1 239 SW2 CONNECTION CUSTOMER 0 351 CB1 11 66 N1 194 0 23...

Page 32: ...STARTER CONTACTER SW2 SET EXERCISE SWITCH SM STARTER MOTOR LOP LOW OIL PRESSURE SWITCH D DIODE DIAGRAM KEY 2 1 10 17 16 15 12 11 13 J1 5 3 J2 4 6 8 3 5 4 1 3 1 2 2 1 DPE WINDING 0 VOLTAGE REGULATOR E...

Page 33: ...ITY COIL RELAY TRANSFER NEUTRAL 120V 240VAC CUSTOMER SUPPLIED 23 SW1 239 C1 6 0 15 17 0 18 C1 5 0 18 0 17 56 18 14 15A 17 0 15 0 C1 1 56 239 13 15 SC 14 15A 194 23 15 IM 0 D BLACK SP POWER WINDING STA...

Page 34: ...27 35 1 49 49 49 11 50 16 17 1 5 47 19 12 6 31 44 30 29 28 87 86 41 40 55 57 56 58 52 49 20 52 72 60 44 62 64 66 59 71 69 68 71 68 69 38 73 75 46 74 76 82 77 80 82 79 80 81 48 44 85 84 72 91 63 92 49...

Page 35: ...NO QTY DESCRIPTION 42 0D3037A 1 LATCH QUARTER TURN NON LOCKING 43 0A2115 4 WASHER NYLON 250 44 022097 9 WASHER LOCK M6 1 4 45 022473 4 WASHER FLAT ZINC 46 036261 14 RIVET POP 125 X 129 133 30 47 04741...

Page 36: ...10 13 15 35 17 49 14 15 5 16 23 38 45 48 2 29 21 17 16 4 6 7 49 23 27 42 12 45 44 20 40 11 1 43 15 35 14 3 41 24 45 47 47 45 31 33 14 13 Section 7 Exploded Views and Parts Lists Guardian Air cooled 7...

Page 37: ...40 1 SWITCH SPST ON ON N O 23 051714 4 NUT HEX M3 0 5 8 5KW 12KW 13KW ITEM PART NO QTY DESCRIPTION 051714 2 NUT HEX M3 0 5 7KW 24 0D8502 1 NEUTRAL CONNECTOR 26 0D8441 1 HARNESS CONTROL PANEL NOT SHOWN...

Page 38: ...9 22 22 21 16 23 24 10 31 7 9 17 18 6 11 5 3 2 33 20 36 19 25 15 4 32 34 34 35 12 26 14 8 13 3B 3A Section 7 Exploded Views and Parts Lists Guardian Air cooled 7 kW 12 kW and 15 kW Generators 7 kW GTS...

Page 39: ...8GP 16 022152 6 WASHER LOCK 10 17 087680 1 NUT WING M6 1 0 18 077441 1 HANDLE TRANSFER SWITCH HOME STANDBY 19 063378 4 HOLDER CABLE TIE 20 0A2110 4 SCREW SWAGE 1 4 20 X 1 2 ZINC 21 074138 2 LUG QUICK...

Page 40: ...1 16 23 24 10 31 7 9 17 18 6 11 5 3 2 39 26 36 19 25 15 38 33 32 34 34 20 37 12 14 8 13 3B 3A 38 Section 7 Exploded Views and Parts Lists Guardian Air cooled 7 kW 12 kW and 15 kW Generators 12 kW and...

Page 41: ...RANSFER SWITCH HOME STANDBY 19 063378 4 HOLDER CABLE TIE 20 0D3094 1 HARNESS GTS TO MAIN PANEL 21 074138 2 LUG QUICK DISCONNECT NI S 10X45 DEG BRASS TIN 22 036933 6 SCREW PPHM 10 32 X 3 8 23 077033 6...

Page 42: ...51 50 49 48 47 46 45 44 43 57 1 42 41 38 37 36 35 34 33 39 3 40 2 3 26 10 4 34 25 11 30 20 66 2 5 19 20 39 40 47 64 93 140 3 32 33 34 35 36 40 72 73 140 16A 16B 16A 54 53 56 Section 7 Exploded Views a...

Page 43: ...TUBE 33 0D1667 1 ARM GOVERNOR 34 0C2991 2 E RING GOVERNOR ARM 35 0C2988 1 THRUST WASHER GOVERNOR ITEM PART NO QTY DESCRIPTION 36 0C2992 1 BUSHING GOVERNOR LOWER 37 0C3971C 1 ASSEMBLY DIPSTICK WITH HA...

Page 44: ...83 84 82 81 130 99 118 126 94 79 78 76 77 75 74 122 125 123 125 119 120 137 136 134 133 132 127 29 135 113 101 110 121 112 128 124 24 80 87 98 97 138 139 11 116 141 Section 7 Exploded Views and Parts...

Page 45: ...8 107 0C3033 1 WASHER 25mm I D 108 0C3034 1 NUT HEX M24 ITEM PART NO QTY DESCRIPTION 109 0C8549 1 SNORKEL AIR INTAKE 110 0C3022A 1 HOUSING BLOWER NG COOLER 111 0D1131 1 GUARD FAN 112 045756 27 SCREW...

Page 46: ...31 31 12 5 22 14 20 38 15 30 24 26 32 10 19 16 28 27 17 10 1 28 31 32 17 32 31 33 28 13 39 18 40 28 34 35 34 44 48 30 45 46 34 36 47 52 Section 7 Exploded Views and Parts Lists Guardian Air cooled 7...

Page 47: ...8 X 1 2 23 049451 1 WASHER FLAT 406ID X 1 62OD 24 022237 4 WASHER LOCK 3 8 25 022511 4 BOLT HHC 3 8 16 X 1 1 4 G5 26 022131 4 WASHER FLAT 3 8 ZINC 27 039287 4 SCREW HHC M8 1 25 X 45 G8 8 28 022145 14...

Page 48: ...38 17 32 31 28 31 20 19 10 17 15 32 16 22 39 8 6 37 14 3 2 40 32 24 25 10 30 19 26 28 27 28 32 31 41 10 18 36 35 29 41 42 Section 7 Exploded Views and Parts Lists Guardian Air cooled 7 kW 12 kW and 1...

Page 49: ...BER MOUNT 18 0388050AD0 1 CABLE 6 48 BLACK BATTERY 19 0C2417A 1 EARTH STRAP 3 8X 3 8 20 082121C 1 CLIP J VYNL COAT 0 625 ID 21 066386 1 ASSEMBLY BRUSH HOLDER 22 029451 2 6 FT TAPE ELEC UL FOAM 1 8 X 1...

Page 50: ...3 39 18 19 20 23 32 44 48 24 46 11 22 29 28 31 30 17 52 1 14 13 26 38 25 25 40 41 12 16 6 1 2 4 42 10 5 7 3 8 9 49 51 50 54 Section 7 Exploded Views and Parts Lists Guardian Air cooled 7 kW 12 kW and...

Page 51: ...12 THK 26 0C7393 1 BALANCER 27 021714 1 ASSEMBLY CYLINDER HEAD SEATS GUIDES 28 086516 1 VALVE EXHAUST 29 086517 1 VALVE INTAKE 30 0D9853B 2 PUSH ROD 174 9 31 083897 2 TAPPET 32 077158 1 ASSEMBLY SCREE...

Page 52: ...0 28 3 39 40 41 43 44 2 4 6 5 12 7 8 9 10 13 14 1 16 18 11 6 37 36 35 27 17 18 34 33 34 18 29 30 31 38 6 45 Section 7 Exploded Views and Parts Lists Guardian Air cooled 7 kW 12 kW and 15 kW Generators...

Page 53: ...25 X 30 G12 9 22 099236 1 SWITCH OIL 8 0 PSI 23 070185 1 FILTER OIL DIA 69 X 64 LG 24 082774 1 KEY WOODRFF 4 X 19D 25 091222E 1 FLYWHEEL WITH RING GEAR 32DEG 26 067198N 1 WASHER BELV 20 X 2 2 27 06789...

Page 54: ...22 0C6731 2 RIVET POP 118 X 125 23 0C6067 2 SUPPORT DIAPHRAGM 24 0C4706 2 DIAPHRAGM TWIN REGULATOR 25 0C6068 2 CAP DIAPHRAGM SUPPORT 26 0C4643A 2 INLET TWIN REGULATOR 11 11 DIA 27 026073 1 PLUG STANDA...

Page 55: ...AIR NTAKE IF SUPPLIED DO NOT LIFT BY THE ROOF LIFTING HOLES 4 CORNERS 30 2mm 1 19 ROUNDING LUG 3 4 NPT FUEL INLET GAS PRESSURE OF 11 14 WATER COLUMN REQUIRED ALL DIMENSIONS IN MILLIMETERS INCHES 76 2m...

Page 56: ...54 Generac Power Systems Inc Section 9 Notes Guardian Air cooled 7 kW 12 kW and 15 kW Generators...

Page 57: ...Generac Power Systems Inc 55 Section 9 Notes Guardian Air cooled 7 kW 12 kW and 15 kW Generators...

Page 58: ...eglect improper maintenance or unap proved modifications or the use of counterfeit and or grey market parts not made supplied or approved by Generac You are responsible for contacting a Generac Author...

Page 59: ...ction 4 below Any such emissions related part repaired or replaced under the ECS Warranty shall be warranted for the remainder of the ECS Warranty Period prior to the first scheduled replacement point...

Page 60: ...use abuse negligence or improper installation As with all mechanical devices the Generac engines need periodic part s service and replacement to perform well This warranty will not cover repair when n...

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