Generac Power Systems 55, 75, 65 manual Generator Specifications

Page 87

 

 

 

 

 

Section 10

 

 

 

 

SPECIFICATIONS & CHARTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GENERATOR SPECIFICATIONS

 

 

 

 

 

 

 

 

 

TYPE

QUIETPACT 55

QUIETPACT 65

QUIETPACT 75

 

 

 

 

 

 

 

 

MODEL

4702/4703

4704/4705

4706/4707

 

 

 

 

 

 

 

 

WEIGHT

326/329 pounds

328/331 pounds

330/333 pounds

 

 

 

 

 

 

 

 

TYPE OF ROTOR

Two-pole

Two-pole

Two-pole

 

 

 

 

 

 

 

 

RATED WATTS

5500

6500

7500

 

 

 

 

 

 

 

 

RATED VOLTS

120

120

120

 

 

 

 

 

 

 

 

PHASE

1-Phase

1-Phase

1-Phase

 

 

 

 

 

 

 

 

RATED MAXIMUM

45.8

54.2

62.5

 

 

LOAD AMPERES

 

 

 

 

 

 

 

 

 

 

 

RATED FREQUENCY

60 Hz

60 Hz

60 Hz

 

 

 

 

 

 

 

 

OPERATING SPEED

2200 rpm

2571 rpm

2571 rpm

 

 

 

 

 

 

 

 

ENGINE MODEL

GTV-760

GTV-760

GTV-760

 

 

 

 

 

 

 

 

TYPE OF ENGINE

Vertical Shaft

Vertical Shaft

Vertical Shaft

 

 

 

 

 

 

 

 

FUEL SYSTEM

Gasoline/LP

Gasoline/LP

Gasoline/LP

 

 

 

 

 

 

 

 

COOLING SYSTEM

Air-Cooled

Air-Cooled

Air-Cooled

 

 

 

 

 

 

 

 

OIL SYSTEM

Pressurized with Filter

Pressurized with Filter

Pressurized with Filter

 

 

 

 

 

 

 

 

OIL PUMP

Trochoid Type

Trochoid Type

Trochoid Type

 

 

 

 

 

 

 

 

AIR CLEANER

Paper element

Paper element

Paper element

 

 

 

w/foam pre-cleaner

w/foam pre-cleaner

w/foam pre-cleaner

 

 

 

 

 

 

 

 

STARTER

12 VDC electric

12 VDC electric

12 VDC electric

 

 

 

 

 

 

 

 

IGNITION SYSTEM

Solid State

Solid State

Solid State

 

 

 

 

 

 

 

 

SPARK PLUG

Champion RC12YC

Champion RC12YC

Champion RC12YC

 

 

 

(or equivalent)

(or equivalent)

(or equivalent)

 

 

 

 

 

 

 

 

SPARK PLUG GAP

0.030 inch

0.030 inch

0.030 inch

 

 

 

(0.76mm)

(0.76mm)

(0.76mm)

 

 

 

 

 

 

 

 

NOMINAL RESISTANCES OF GENERATOR WINDINGS AT 68°F

 

 

 

 

 

 

 

 

TYPE

QUIETPACT 55

QUIETPACT 65

QUIETPACT 75

 

 

 

 

 

 

 

 

MODEL

4702/4703

4704/4705

4706/4707

 

 

 

 

 

 

 

 

Power Windings

 

 

 

 

 

Lead 11 to 22

0.280 - 0.320 ohms

0.209 - 0.242 ohms

0.157 - 0.182 ohms

 

 

Lead 11S to 22S

 

 

 

 

 

Lead 33 to 44

 

 

 

 

 

 

 

 

 

 

 

Excitation "DPE" Winding

 

 

 

 

 

Lead 2 to 6

1.41 - 1.63 ohms

1.59 - 1.84 ohms

1.12 - 1.30 ohms

 

 

 

 

 

 

 

 

Battery Charge Windings

 

 

 

 

 

Lead 55 to 66

0.100 - 0.116 ohms

0.104 - 0.107 ohms

0.092 - 0.107 ohms

 

 

Lead 55 to 77

0.100 - 0.116 ohms

0.087 - 0.101 ohms

0.076 - 0.088 ohms

 

 

 

 

 

 

 

 

Rotor Winding

 

 

 

 

 

Slip Ring to Slip Ring

14.88 ohms

10.81ohms

14.50 - 16.0 ohms

 

 

 

 

 

 

Page 85

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Contents Diagnostic Repair Manual Replacement Parts SafetyTable of Contents Section Exploded Views / Part Numbers Section Specifications & ChartsMagnetism Electromagnetic FieldsElectromagnetic Induction More Sophisticated AC Generator Simple AC GeneratorGenerator Operating Diagram Field Boost Generator AC Connection SystemLine Breakers 120 Volts only Reconnection for Dual Voltage Output Connection for 120 Volts OnlyStator Assembly Rotor AssemblyGeneral Battery Charge ComponentsBrush Holder Excitation Circuit ComponentsDescription Adjustment ProcedureCrankcase Breather Voltage RegulatorCheck Breather Install BreatherInstall oil vapor collector and retainer Control Panel Component IdentificationDrying the Generator Cleaning the GeneratorEffects of Dirt and Moisture Insulation Resistance TestersStator SHORT-TO-GROUND Tests Brushing and Vacuum CleaningStator Insulation Resistance Cloth or Compressed AIRMegohmmeter Testing Rotor InsulationTesting Stator Insulation Testing Rotor InsulationMeasuring DC Voltage MetersVOM Measuring AC VoltageMeasuring AC Frequency Measuring CurrentMeasuring Resistance Volt Electrical UnitsOhms LAW AmpereIntroduction Operational AnalysisCircuit CONDITION- Rest Circuit CONDITION- Priming Circuit CONDITION- Cranking Choke Heater CH Circuit CONDITION-RUNNINGCircuit CONDITION- Shutdown Sure Switch LOP Circuit CONDITION- Fault ShutdownEngine Controller Circuit Board BatteryRecommended Battery Battery CablesFuel Primer Switch START-STOP SwitchAMP Fuse Starter Contactor Relay Starter Motor Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Troubleshooting Flowcharts Discussion ProcedureTest 1- Check NO-LOAD Voltage Frequency Test 2- Check Engine GovernorIf continuity was indicated, go to Test Governor AdjustmentTest 3- Test Excitation Circuit Breaker Test 4- Fixed Excitation TEST/ROTOR AMP DrawSet a VOM to its Rx1 scale Test 5- Wire ContinuityRe-connect Wire 11 and Wire 22 to the Voltage Regulator Set the VOM to measure AC voltageTest 6- Check Field Boost Test 7 Test Stator DPE WindingIf field boost checks good, replace the Voltage Regulator Model Ohms Test 8- Check Sensing Leads / Power WindingsAcross Wires Ohms 11S 22STest 10 Check Brushes & Slip Rings Test 9- Check Brush LeadsReplace the Rotor if it fails the test Test 11- Check Rotor AssemblyTance Tests Procedure Test 12 Check Main Circuit BreakerTest 13- Check Load Voltage Frequency Test 15 Check Battery Charge OutputTest 16 Check Battery Charge Rectifier Battery Charge Rectifier BCR is a full wave rectifierShort to Ground 10. Battery Charge RectifierTest 18 TRY Cranking the Engine Test 19- Test Primer SwitchSet a VOM to read battery voltage 12 VDC Also see Fuel Primer Switch,13. The LPG Fuel Solenoid FS Test 20- Check Fuel PumpTest 22- Check Battery & Cables Test 23- Check Power Supply to Circuit BoardTest 21- Check 7.5 AMP Fuse 17. Start-Stop Switch Test 24 Check START-STOP SwitchSet a VOM to measure DC voltage 12 VDC Test 26- Check Starter Contactor RelayTest 26A Check Starter Contactor Test 27 Check Starter MotorConditions Affecting Starter Motor Performance Tachometer Checking the PinionTools for Starter Performance Test Measuring CurrentRemove Starter Motor Testing Starter MotorTest 28- Check Fuel Supply Test BracketDiscussion LPG Models 28 LP Gas Carburetion DiagramCrank the engine. The meter should indicate battery voltage Test 29 Check Wire 14 Power SupplyTest 30 Check Wire Battery voltage is not measured, proceed to StepTest 32 Check Ignition Spark Test 31 Check Fuel Solenoid Gasoline ModelsConclusion No cylinder is weakest of the two cylinders Cylinder Balance TestTest 33 Check Spark Plugs Test 34 Check and Adjust Ignition Magnetos37. Setting Ignition Magneto Armature Air Gap Flywheel KEY Test 35 Check Valve AdjustmentAdjusting Valve Clearance Checking Flywheel MagnetInstall Rocker ARM Cover Test 36 Check CarburetionTest 37 Check Choke Solenoid 43. Connector Check Compression Adjust the regulated pressure on the gauge to 80 psiDown Test / Compression Test Repeat Steps 1 through 8 on remaining cylinderTest 39 Check OIL Pressure Switch Test 40 Test OIL Temperature SwitchIf all steps check GOOD, go to Test Test 41 Test Choke Heater Test 42 Check LPG Fuel SolenoidShort to Ground 49. Fuel Solenoid Rotor Removal Major DisassemblyENCLOSURE/PANEL Removal Stator RemovalBelt Tensioning Engine RemovalStarter Removal FLYWHEEL/MAGNETO Removal Page Section Exploded Views / Part Numbers Part NO. QTY Description Enclosure Drawing No E1011-B QTY Description Sheet Metal Drawing No E1012-E Flywheel Assy GT-990 QTY DescriptionControl Panel Drawing No E1013-A PANEL, TOP Control Wire ASM GRD STD ConnSwitch Spdt ON-MOM-ON Switch 6A Spdt Not ShownTwin Engine Drawing No E1014-B ASSEMBLY, OIL Fill CAP ASSEMBLY, Crankcase RVASSEMBLY, Breather ASSEMBLY, Head #1LP Regulator Drawing No E1530 SPRING-SOLENOID Plunger CASTING, Twin Regulator HousingWasher Flat M4 SOLENOID, Twin RegulatorSpecifications & Charts Nominal Resistances of Generator Windings AT 68F Generator SpecificationsEngine Speeds and Voltage Specifications Page Electrical Data Electrical Data PO BOX 297 WHITEWATER, WI

65, 75, 55 specifications

Generac Power Systems has established itself as a leader in power generation, offering a range of high-performance generators suited for residential and commercial applications. Among its lineup, the Generac 55, 65, and 75 kW generators stand out for their reliability, efficiency, and advanced features.

The Generac 55 kW generator is designed to provide a powerful backup solution for medium to large homes or small businesses. It features a robust engine that delivers dependable performance while maintaining fuel efficiency. One of its key characteristics is the True Power Technology, which produces clean and stable power, ensuring that sensitive electronic devices run smoothly without risk of damage. This generator is equipped with a fully automatic transfer switch, allowing for seamless power transition during outages, with minimal disruption.

Moving to the 65 kW model, it offers increased capacity while retaining the fundamental qualities of the 55 kW version. This unit is particularly suited for larger homes or commercial applications that require greater power demands. The 65 kW generator utilizes Generac’s G-Force engine, known for its durability and reduced maintenance needs. Advanced features such as remote monitoring capabilities allow users to check the generator's status from anywhere, providing peace of mind and convenience.

The 75 kW generator takes performance to the next level, making it ideal for even more significant power needs. It is engineered for both quiet operation and enhanced performance, accommodating a wide range of requirements from residential to larger commercial operations. The 75 kW model includes a full-load voltage regulation system that maintains stable power output under varying loads, safeguarding appliances and equipment.

All three models incorporate advanced air-cooled technology, which enhances their efficiency and operational lifespan. Additionally, their corrosion-resistant enclosures ensure durability even in harsh weather conditions, making them suitable for diverse environments. The intuitive LCD display on each unit provides critical information, including runtime hours and maintenance reminders, empowering users with easy access to the generator's performance data.

Overall, Generac Power Systems' 55, 65, and 75 kW generators represent a commitment to quality, reliability, and innovation in backup power solutions. They are designed to meet the demands of modern power consumption while ensuring peace of mind through robust engineering and advanced technology. Whether for home use or commercial applications, these generators provide an effective means to stay prepared for unexpected power outages.