Generac Power Systems GN220H Manuals

Manuals and User Guides for Generac Power Systems GN220H. We have 1 Generac Power Systems GN220H manual available for free PDF download: Service And Repair Manual

Generac Power Systems GN220H Service And Repair Manual (62 pages)

Small Frame GN Engine

Brand: Generac Power Systems | Category: Engine | Size: 17.44 MB

Table of Contents
3
Dimensions and Features

5
4-Cycle Engine Theory

10
Section 1: General

11
- Purpose and Scope of Manual
  11
- Small Frame Engines
  11
- Long Block
  11
- Engine I.D. Number/Serial Number
  11
- Engine Care
  12
  - Recommended Fuels
    12
  - Recommended Engine Oil
    12
  - Change Oil Filter
    12
- Storage Instructions
  12
- Tune-Up Procedure
  12
- Oversize Parts
  14
Section 2: Air Cleaners and Carburetion

16
- Air Cleaner
  16
  - Servicing
    16
  - Foam Pre-Cleaner
    16
  - Paper Filter
    16
  - Air Cleaner Box Removal
    16
  - Air Cleaner Box Installation
    17
- Carburetion
  17
  - General
    17
  - Common Carburetor Problems
    17
  - Adjustable and Fixed Main Jet
    17
  - Carburetor Removal
    18
  - Carburetor Disassembly
    18
  - Cleaning and Inspection
    18
  - Carburetor Installation
    18
Section 3: Mechanical Governor

20
- Governor Operation
  20
- Governor Internal Parts
  20
- Governor External Parts
  20
  - Removal of Governor External Parts
    20
  - Installation of Governor External Parts
    21
- Governor Gear Shaft Replacement
  21
  - Inspection
    21
  - Removal
    21
  - Installation
    21
- Linkage Installation
  21
- Governor Adjustment
  21
  - Initial Adjustment
    21
  - Running Adjustment
    22
  - Section 3: Mechanical Governor
    22
Section 4: Optional Idle Control

24
- General
  24
- Operating Instructions
  24
  - Before Start-Up
    24
  - Engine Running
    24
- Circuit Operation
  24
- Idle Control Adjustment
  25
  - General
    25
  - Initial Adjustment
    25
  - Final Adjustment
    25
Section 5: Rewind Starters

26
- General
  26
- Rewind Assembly Removal
  26
- Disassembly (Old Style)
  27
- Reassembly
  27
- Disassembly (New Style)
  27
Section 6: Electric Starters and Batteries

28
- Introduction
  28
- Starter Contactor System
  28
- Heavy Duty Switch System
  28
- Starter Motor Operating Principles
  28
- The Bendix Drive
  28
- Starter Motor Repairs
  28
  - Starter Motor Removal
    28
  - Starter Motor Installation
    28
- Testing the Starter Motor
  29
- Battery Maintenance
  29
  - General
    29
  - Inspecting the Battery
    29
  - Electrolyte Level
    29
- Testing a Battery
  29
Section 7: Covers and Shrouds

31
- General
  31
  - Installation of Covers and Shrouds
    31
Section 8: Ignition System

32
- General
  32
- Major Components
  32
- Ignition Coil Assembly
  32
- Spark Plug
  32
- Flywheel
  32
  - Checking Flywheel Magnet
    32
  - Flywheel Key
    32
  - Flywheel Removal
    32
  - Flywheel Installation
    33
- Testing the Ignition System
  33
Section 9: Valve Train

34
- Major Components
  34
- Disassembly
  34
- Valve Service
  35
  - Valve
    35
  - Valve Seats
    35
  - Valve Guides
    36
  - Valve Tappets
    36
  - Valve Springs
    36
- Installation
  36
- Adjusting Valve Clearance
  38
- Install Rocker Arm Cover
  38
Section 10: Piston, Rings and Rod

40
- General
  40
- Removal
  40
- Piston
  40
  - Removal from Connecting Rod
    40
  - Check Piston for Wear
    40
- Piston Rings
  41
  - General
    41
  - Description
    41
  - Ring End Gap
    41
- Connecting Rod
  42
- Assembly and Installation
  42
  - Assembly
    42
  - Installation
    43
- Cylinder Service
  43
  - Inspection
    43
  - Reboring the Cylinder
    43
Section 11: Crankshaft and Camshaft

44
- Camshaft Removal
  44
  - Removal of Crankcase Cover
    44
- Crankshaft Removal
  44
- Camshaft Inspection
  45
- Crankshaft Inspection
  45
  - Crankshaft Proper
    45
  - Crankshaft Sleeve Bearing
    46
- Compression Release
  46
- Crankshaft Installation
  47
- Camshaft Installation
  47
- Section 11: Crankshaft and Camshaft
  47
Section 12: Lubrication

48
- General
  48
- Oil Flow
  48
- Oil Pickup Assembly
  48
  - Description
    48
  - Inspection
    48
- Oil Pump
  48
  - Inspection
    49
- Crankshaft Oil Seals
  49
- Pressure Relief Valve
  50
  - Description
    50
  - Inspection
    50
- Breather Assembly
  50
- Crankcase Cover
  50
  - Inspection
    51
  - Governor Gear Installation
    51
  - Crankcase Cover Installation
    51
- Optional Oil Filter
  52
- Low Oil Pressure System
  52
Section 13: Troubleshooting

54
- Section 13: Troubleshooting
  55
Specifications

56

Generac Power Systems Categories

Portable Generator Inverter Pressure Washer

Switch Lighting Equipment

More Generac Power Systems Manuals

Generac Power Systems GN220H Manuals

Generac Power Systems GN220H Service And Repair Manual (62 pages)

Table of Contents

Dimensions and Features

4-Cycle Engine Theory

Section 1: General

Section 2: Air Cleaners and Carburetion

Section 3: Mechanical Governor

Section 4: Optional Idle Control

Section 5: Rewind Starters

Section 6: Electric Starters and Batteries

Section 7: Covers and Shrouds

Section 8: Ignition System

Section 9: Valve Train

Section 10: Piston, Rings and Rod

Section 11: Crankshaft and Camshaft

Section 12: Lubrication

Section 13: Troubleshooting

Specifications

Related Products

Generac Power Systems Categories