AirMan SDG75S-3A2 - User Manual

Questions and Answers

M
Mary RodriguezAug 10, 2025
What to do if the engine oil pressure warning lamp turns on in my AirMan SDG75S-3A2 Inverter?
- T
  travis06Aug 10, 2025
  If the engine oil pressure warning lamp illuminates, it could be due to several reasons. First, check if there is an engine oil shortage and replenish the oil if needed. Other potential causes include a clogged engine oil filter (change it), a malfunctioning oil pressure switch (replace it), or loosened/disconnected wiring or connectors (check and fasten them).
B
Benjamin DominguezAug 17, 2025
Why does the over crank warning lamp go on in my AirMan SDG75S-3A2?
- J
  Jennifer SnyderAug 17, 2025
  The over crank warning lamp might activate due to several issues. It could be caused by a fuel filter clogging, in which case you should disassemble, clean, and change the filter. Another cause might be a filter clogging in the fuel air-bleeding electromagnetic pump (SDG45S/60S/75S), so change the filter. Also, a malfunctioning fuel cut off solenoid may be the reason, so replace the solenoid. The warning lamp can also indicate that there is no diesel fuel oil, so replenish the fuel. Finally, air mixing in fuel pipings may be the cause, so bleed the air.
K
kingsamuelAug 25, 2025
How to fix a coolant temperature warning lamp that turns on in AirMan Inverter?
- M
  Matthew MorganAug 25, 2025
  If the coolant temperature warning lamp turns on, consider the following potential causes: 1. Radiator clogging (clean it). 2. Faulty thermostat (change it). 3. Faulty coolant temperature switch (change it). 4. Shortage of coolant (replenish it). 5. Slip of fan belt (adjust tension). 6. Looseness or disconnection of wiring or connectors (check and fasten).
O
omatthewsAug 31, 2025
What causes the charge warning lamp to turn on in AirMan SDG75S-3A2?
- H
  holmesbrendanSep 1, 2025
  The charge warning lamp turning on may indicate an alternator problem (check or change it), a slipping fan belt (fasten or change it), or looseness/disconnection of wiring or connectors (check and fasten them).

Summary

Safety

Safety Message Classification

Explains DANGER, WARNING, CAUTION, and IMPORTANT safety message categories for user understanding.

Caution Before Operation

Details electrical safety and ventilation requirements before operating the generator unit.

Battery Handling Safety

Safety precautions for handling batteries, including explosion risks and chemical hazards.

Transportation and Installation Safety

Safety guidelines for transporting and installing the generator unit properly.

General Operational Safety

Covers safety around the unit, pre-operation checks, attire, equipment, and aids.

Caution During Operation

Warns about output terminals, control panels, rotating parts, and cooling fans during operation.

Operational Precautions

Advises against radiator cap removal, touching hot parts, and emphasizes fire prevention.

Prohibited Operations

Prohibits draining during operation and warns about load imbalance to prevent damage.

Inspection and Maintenance Safety

Safety steps for inspection, maintenance, and cleaning with compressed air.

Specific Safety Procedures

Covers lighting safety, radiator cap removal, and coolant drain valve safety.

Maintenance Safety Precautions

Details safety for oil handling, unit cleaning, and waste disposal procedures.

Names of Components

Unit Appearance and Part Names

Main Components Identification

Instrument Panel Layout

Warning and Emergency Display

GFCI Receptacles

Transportation

Installation

Site and Environmental Conditions

Cable Selection and Load Connection

Electrical Connection Details

Grounding Methods

Operation

Pre-Operation Checks

Outlines essential checks to perform before starting the generator unit.

Engine Oil Level Check

Details the procedure for checking the engine oil level and quality.

Coolant and Fuel Checks

Procedures for checking coolant level and fuel, including safety during fueling.

Fuel Tank and Sedimenter Draining

Steps for draining the fuel tank and checking the water sedimenter.

Component Condition Checks

Unit Operation Guidelines

General advice for operating the generator, including warm-up and load management.

Starting Procedures

Step-by-step instructions for manual and automatic engine starting.

Starting Sequence and Prevention

Meter and Indicator Lights

Stopping and Start Failure Troubleshooting

Procedures for stopping the generator and addressing start-up failures.

Frequency Adjustment

Emergency Stop and Air Bleeding

Periodic Inspection and Maintenance

Important Maintenance Precautions

Daily Inspection and Log Keeping

Component Inspection and Location

Initial 50-Hour Maintenance

Engine Oil Filter Replacement

250-Hour Maintenance Tasks

GFCI Receptacle Check

300-Hour Battery Check

500-Hour Maintenance Tasks

Fuel Filter and Pump Maintenance

1000-Hour Coolant Change

Radiator Cleaning

2000-Hour Cleaning Tasks

Comprehensive Inspection Checklist

Maintenance and Adjustment

Automatic Shut-Down and Battery

Troubleshooting Common Issues

Lists common symptoms, causes, and countermeasures for generator problems.

Advanced Troubleshooting

Covers troubleshooting for voltage generation and control system issues.

Specifications

Summary

Safety

Safety Message Classification

Explains DANGER, WARNING, CAUTION, and IMPORTANT safety message categories for user understanding.

Caution Before Operation

Details electrical safety and ventilation requirements before operating the generator unit.

Battery Handling Safety

Safety precautions for handling batteries, including explosion risks and chemical hazards.

Transportation and Installation Safety

Safety guidelines for transporting and installing the generator unit properly.

General Operational Safety

Covers safety around the unit, pre-operation checks, attire, equipment, and aids.

Caution During Operation

Warns about output terminals, control panels, rotating parts, and cooling fans during operation.

Operational Precautions

Advises against radiator cap removal, touching hot parts, and emphasizes fire prevention.

Prohibited Operations

Prohibits draining during operation and warns about load imbalance to prevent damage.

Inspection and Maintenance Safety

Safety steps for inspection, maintenance, and cleaning with compressed air.

Specific Safety Procedures

Covers lighting safety, radiator cap removal, and coolant drain valve safety.

Maintenance Safety Precautions

Details safety for oil handling, unit cleaning, and waste disposal procedures.

Names of Components

Unit Appearance and Part Names

Main Components Identification

Instrument Panel Layout

Warning and Emergency Display

GFCI Receptacles

Transportation

Installation

Site and Environmental Conditions

Cable Selection and Load Connection

Electrical Connection Details

Grounding Methods

Operation

Pre-Operation Checks

Outlines essential checks to perform before starting the generator unit.

Engine Oil Level Check

Details the procedure for checking the engine oil level and quality.

Coolant and Fuel Checks

Procedures for checking coolant level and fuel, including safety during fueling.

Fuel Tank and Sedimenter Draining

Steps for draining the fuel tank and checking the water sedimenter.

Component Condition Checks

Unit Operation Guidelines

General advice for operating the generator, including warm-up and load management.

Starting Procedures

Step-by-step instructions for manual and automatic engine starting.

Starting Sequence and Prevention

Meter and Indicator Lights

Stopping and Start Failure Troubleshooting

Procedures for stopping the generator and addressing start-up failures.

Frequency Adjustment

Emergency Stop and Air Bleeding

Periodic Inspection and Maintenance

Important Maintenance Precautions

Daily Inspection and Log Keeping

Component Inspection and Location

Initial 50-Hour Maintenance

Engine Oil Filter Replacement

250-Hour Maintenance Tasks

GFCI Receptacle Check

300-Hour Battery Check

500-Hour Maintenance Tasks

Fuel Filter and Pump Maintenance

1000-Hour Coolant Change

Radiator Cleaning

2000-Hour Cleaning Tasks

Comprehensive Inspection Checklist

Maintenance and Adjustment

Automatic Shut-Down and Battery

Troubleshooting Common Issues

Lists common symptoms, causes, and countermeasures for generator problems.

Advanced Troubleshooting

Covers troubleshooting for voltage generation and control system issues.

Specifications

AirMan SDG75S-3A2 Specifications

General

Brand	AirMan
Model	SDG75S-3A2
Category	Inverter
Language	English

Related product manuals

AirMan SDG75S-3A2 - User Manual

Table of Contents

Questions and Answers

Summary

Safety

Safety Message Classification

Caution Before Operation

Battery Handling Safety

Transportation and Installation Safety

General Operational Safety

Caution During Operation

Operational Precautions

Prohibited Operations

Inspection and Maintenance Safety

Specific Safety Procedures

Maintenance Safety Precautions

Names of Components

Unit Appearance and Part Names

Main Components Identification

Instrument Panel Layout

Warning and Emergency Display

GFCI Receptacles

Transportation

Installation

Site and Environmental Conditions

Cable Selection and Load Connection

Electrical Connection Details

Grounding Methods

Operation

Pre-Operation Checks

Engine Oil Level Check

Coolant and Fuel Checks

Fuel Tank and Sedimenter Draining

Component Condition Checks

Unit Operation Guidelines

Starting Procedures

Starting Sequence and Prevention

Meter and Indicator Lights

Stopping and Start Failure Troubleshooting

Frequency Adjustment

Emergency Stop and Air Bleeding

Periodic Inspection and Maintenance

Important Maintenance Precautions

Daily Inspection and Log Keeping

Component Inspection and Location

Initial 50-Hour Maintenance

Engine Oil Filter Replacement

250-Hour Maintenance Tasks

GFCI Receptacle Check

300-Hour Battery Check

500-Hour Maintenance Tasks

Fuel Filter and Pump Maintenance

1000-Hour Coolant Change

Radiator Cleaning

2000-Hour Cleaning Tasks

Comprehensive Inspection Checklist

Maintenance and Adjustment

Automatic Shut-Down and Battery

Troubleshooting Common Issues

Advanced Troubleshooting

Specifications

Summary

Safety

Safety Message Classification

Caution Before Operation

Battery Handling Safety

Transportation and Installation Safety

General Operational Safety

Caution During Operation

Operational Precautions

Prohibited Operations

Inspection and Maintenance Safety

Specific Safety Procedures

Maintenance Safety Precautions

Names of Components

Unit Appearance and Part Names

Main Components Identification

Instrument Panel Layout

Warning and Emergency Display

GFCI Receptacles