Guardian 5240 User Manual

MODELS:
5240, 5280 (7 kW NG, 6 kW LP)
5241, 5281 (9 kW NG, 10 kW LP)
5242, 5282 (13 kW NG, 13 kW LP)
5243, 5283 (15 kW NG, 16 kW LP)
5244, 5284 (15 kW NG, 16 kW LP)
DIAGNOSTIC
REPAIR MANUAL
AUTOMATIC STANDBY GENERATORS
www.guardiangenerators.com
DIAGNOSTIC
REPAIR MANUAL
AIR-COOLED

Guardian 5240 Specifications

General

Engine Displacement	224 cc
Engine Type	4-Stroke OHV
Displacement	224 cc
Fuel Tank Capacity	4.7 gallons
Run Time at 50% Load	12 hours
Noise Level	68 dB
AC Output	120V / 240V
DC Output	12V
Outlets	120/240V 30A

Summary

PART 1 - GENERAL INFORMATION

Prepackaged Installation Basics

Covers essential installation requirements for prepackaged standby systems, including location, grounding, and wiring.

Testing, Cleaning, and Drying Procedures

Engine-Generator Protective Devices

Explains various safety devices that protect the engine from damage during operation.

Operating Instructions Guide

PART 2 AC GENERATORS

AC Generator Troubleshooting Flow Charts

Provides visual flow charts to diagnose common AC generator problems like zero voltage or low voltage.

AC Generator Diagnostic Tests

Lists and describes tests for troubleshooting AC generator issues, including voltage and resistance checks.

PART 3 “V-TYPE” PREPACKAGED TRANSFER SWITCHES

Transfer Switch Troubleshooting Flow Charts

Offers flow charts to diagnose transfer switch problems like no transfer or incorrect retransfer.

Transfer Switch Diagnostic Tests

Provides specific tests for checking voltages, continuity, fuses, and switch components.

PART 4 DC CONTROL

DC Control Troubleshooting Flow Charts

Guides users through diagnosing DC control system issues such as engine not cranking or not starting.

DC Control System Diagnostic Tests

Lists specific tests for components like switches, fuses, batteries, and sensors within the DC control system.

PART 5 OPERATIONAL TESTS

System Functional Tests Procedures

Outlines procedures for testing manual transfer switch operation, voltage, generator under load, and automatic operation.