Generac Power Systems NP-40G User Manual
Service manual, Computer controlled variable speed rv generators
Advertising
This manual is related to the following products:
Table of contents
Document Outline
- SAFETY
- NOTICE TO USERS OF THIS MANUAL
- REPLACEMENT PARTS
- SERVICE
- MANUAL
- Part 1 THE AC GENERATOR
- Magnetism
- Electromagnetic Fields
- Electromagnetic induction
- Alternating Current
- Alternating Current (Continued)
- Electrical Units
- Ohm’s Law
- Reactance in AC Circuits
- Why Variable
- Speed Control?
- Introduction
- Upper Fan Housing
- Upper Cooling Fan
- Permanent Magnet Rotor
- Rotor Hub
- Stator Retaining Ring
- Stator Assembly
- Stator Adapter
- Lower Fan & Flywheel
- Engine
- Stepper Motor
- The Genistor
- The CCG Circuit Board
- The CCG
- Dirt and Moisture
- Insuiation Resistance Testers
- Stator Leads
- Preparation for Tests
- Test Aii Stator Windings to Ground
- Test All Stator Windings to Ground (Continued)
- Test for Shorts Between Windings
- Results of Tests
- Cleaning the Generator
- Drying the Generator
- Introduction
- Stator Assembly
- Genistor
- Testing the Battery Charge Circuit
- Testing the Battery Charge Circuit (Continued)
- Testing the CCG Circuit Board
- Construction
- Components
- General
- Parts List for Exploded View of Sheet Metal
- Part 2 ENGINE MECHANICAL
- Introduction
- 4-Cycle Engine Theory
- Recommended Fuels
- Recommended Engine Oil
- Storage Instructions
- Engine Tuneup
- Exploded View of Engine Long Block
- Valve Components Removal
- Valve Components Removal (Continued)
- Valve Service
- Valve Service (Continued)
- Valve Components Installation
- Valve Components Installation (Continued)
- Adjusting Valve Clearance
- Rocker Arm Cover installation
- Section 2.3- PISTON, RINGS, CONNECTING ROD
- Section 2,3- PISTON, RINGS, CONNECTING ROD
- Piston (Continued)
- Connecting Rod
- Assembly and Installation
- Cylinder Service (Continued)
- General
- Crankcase Cover Removal
- Camshaft Removal
- Crankshaft Removal
- Camshaft Inspection
- Camshaft Inspection (Continued)
- Crankshaft Inspection:
- Compression Release Mechanism
- Installing the Crankshaft
- Installing the Camshaft
- Installing the Camshaft (Continued)
- General
- Recommended Fuel
- Evaporation Control Systems
- Air Cleaner
- Air Intake
- Fuel Filter
- General Information
- Description
- Carburetor Disassembiy
- Carburetor Disassembly (Continued)
- Cleaning and Inspection
- Adjustment
- Engine Speed
- Throttle Linkage Adjustment
- Carburetor Removal
- General
- Description
- Operational Check and Adjustment
- General
- CCG Circuit Board
- Stepper Motor
- Testing the CCG Circuit Board
- Stepper Motor Probiems
- Testing the Stepper Motor
- General Information
- Advantages of Gaseous Fuels
- Fuel System Components
- Vapor Withdrawal
- Important Considerations
- Important Considerations (Continued)
- Fuei Suppiy Lines
- Excess Fiow Vaive
- Gaseous Carburetion
- Leakage Testing
- General
- Parts List for Figure 1
- Adjustments
- The LP Gas Regulator
- Testing the Fuel Lockoff Solenoid
- Testing the Fuel Lockoff Solenoid (Continued)
- General
- Carburetion
- Carburetor Adjustment
- Carburetor Removal
- Disassembly and Reassembly
- Part 5
- ENGINE OIL & COOLING SYSTEM
- Introduction to Oil System
- Oil Flow
- Oil Pickup Screen
- Oil Pump
- Oil Pump (Continued)
- Crankshaft Oil Seals
- Pressure Relief Valve
- Breather Assembly
- Oil Sump
- Oil Filter Support
- General
- Generator Air Flow
- Air Flow into Generator Compartment
- Compensating for Restrictions
- Compensating for Restrictions (Continued)
- General
- How it Works
- General
- Circuit Board Connections
- Receptacle J1
- Receptacle J2
- Receptacle J3
- Introduction
- Battery (Continued)
- Start-Run-Stop Switch (SW1)
- Starter Contactor
- Introduction
- Ignition Cage Assembly
- Ignition Sensor
- ignition Moduie
- Ignition Module (Continued)
- Ignition Coii
- Summary of Operation
- Ignition Timing
- Testing the System
- General
- Oil Pressure Switch
- Oil Temperature Switch
- Oil Temperature Switch (Continued)
- General
- Remote Panel Cables
- Description
- Wiring Connections
- Part 7 TROUBLESHOOTING
- Problem 1- Priming Function Does Not Work
- Problem 2- Engine Will Not Crank
- Problem 3- Engine Cranks But Will Not Start
- Section 7,2- ENGINE DC CONTROL SYSTEM
- Section 7.2- ENGINE DC CONTROL SYSTEM
- Problem 5- Engine Starts Then Shuts Down After a Few Seconds
- Test 1- Check 15 Amp Fuse
- Test 3- Check Power to Fuel Pump
- Test 2- Check Power to Switch
- Test 4- Check Battery/Battery Circuit
- Test 5- Test Fuei Pump
- Test 6- Test Primer Switch
- Test 7- Check Wire 14A to Fuei Pump
- Test 8- Check Power Suppiy to Starter Motor
- Section 7,2- ENGINE DC CONTROL SYSTEM
- Test 8- Check Power Supply to Starter Motor (Continued)
- Test 9- Check Wire 56 Power to Starter Contactor
- Test 10- Check Engine Controlier Board Power Supply
- Test 11- Test Starter Contactor
- Test 13- Check Fuel Supply
- Test 12- Test Start-Stop Switch
- Test 14- Check Fuel Filter
- Test 15- Check Ignition Spark
- Test 16- Check Spark Plug
- Test 17- Check ignition Power Suppiy
- Test 18- Check ignition Sensor
- Test 19- Check ignition Coii
- Test 20- Test ignition Moduie
- Test 21- Check Engine Controiier Board Output to Wire 14
- Test 22-Test Automatic Choke
- Test 23- Check Carburetion
- Test 24- Check Engine
- Test 25- Isolate the CCG System
- Test 26- Test Oil Pressure Switch
- Test 27- Test CCG System
- Section 7,2- ENGINE DC CONTROL SYSTEM
- Part 8
- SPECIFICATIONS AND CHARTS