Table Of Contents - Generac Power Systems MGG155 Operating Manual

Section 1 - Safety
Safety Notes ....................................................................................................................................... 1
Operating Safety................................................................................................................................. 1
Engine Safety ..................................................................................................................................... 2
Service Safety .................................................................................................................................... 2
Towing Safety..................................................................................................................................... 3
Reporting Trailer Safety Defects ........................................................................................................ 3
Section 2 - General Information
Specifications ..................................................................................................................................... 5
Unit Dimensions .................................................................................................................... 6
Engine Oil Recommendations ............................................................................................... 6
Coolant Recommendation ..................................................................................................... 7
Unit Serial Number Locations............................................................................................................. 7
Component Locations......................................................................................................................... 8
Unit Set Up ....................................................................................................................................... 14
Well Site Approval ............................................................................................................... 14
Fuel Connections................................................................................................................. 14
LP Liquid Connections (Liquid Withdrawal System) ............................................................ 17
Valve and Fitting Pipe Equivalents ...................................................................................... 19
Electrical Connections ......................................................................................................... 19
Dual Fuel System ............................................................................................................................. 20
Natural Gas (Well Gas) Fuel System .................................................................................. 20
LP Liquid Withdrawal Fuel System ...................................................................................... 20
DC Fuses.......................................................................................................................................... 20
Generator and Load Compatibility.................................................................................................... 20
Engine/Generator Protective Devices .............................................................................................. 21
Digital Controller ............................................................................................................................... 21
Setting the Clock ................................................................................................................. 22
Section 3 - Operation
Prestart Checklist ............................................................................................................................. 23
Manually Starting the Unit ................................................................................................................ 23
Natural Gas (Well Gas) Start Up ......................................................................................... 23
LP Liquid Start Up ............................................................................................................... 24
Auto (Remote) Starting the Unit ....................................................................................................... 24
Parallel Setup and Operation ........................................................................................................... 24
Operation Checks............................................................................................................................. 25
Overcrank Shutdown ........................................................................................................................ 25
Derating for Altitude.......................................................................................................................... 26
Generator Output Connections......................................................................................................... 26
Customer Convenience Receptacles ............................................................................................... 27
Main Circuit Breaker ......................................................................................................................... 28
Frame Ground Connection .................................................................................................. 28
Battery Disconnect Switch ................................................................................................... 28
Shutting Down the Unit..................................................................................................................... 28
Emergency Stop Switch ................................................................................................................... 29
Towing the Trailer............................................................................................................................. 29
Section 4 - Maintenance
Emissions ......................................................................................................................................... 31
Maintenance Tasks .......................................................................................................................... 31
Daily Walk Around Inspection.............................................................................................. 31
Check Fuel System ............................................................................................................. 31
Check Engine Fluids............................................................................................................ 31
Changing the Oil.................................................................................................................. 32

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