AirMan SDG100S-6A6 - User Manual

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INSTRUCTIONAL MANUAL

MOBILE GENERATORS

SDG25S-6A7, SDG45S-6A6,

SDG65S-6A6, SDG100S-6A6

MMD Equipment Inc.

121 High Hill Road

Swedesboro, NJ 08085

Tel: (800) 433-1382

Fax: (856) 467-5235

www.mmdequipment.com

Questions and Answers

C
Christina JenkinsAug 16, 2025
What to do if AirMan Portable Generator starter rotates but engine won't start?
- S
  Susan WilliamsAug 16, 2025
  If the starter rotates but the engine doesn't start, several issues could be the cause. Check for a clogged fuel filter, and if so, disassemble, clean, and change it. Also, the filter of the fuel air-bleeding electric pump might be clogged and needs changing. A malfunctioning fuel shut-off solenoid could be the issue, so check the fuse. Ensure there's diesel fuel oil and replenish if needed. Finally, air might be mixing in the fuel pipings, requiring you to bleed the air.
B
brianmontoyaAug 19, 2025
Why does the engine oil pressure drop warning lamp glow on my AirMan SDG100S-6A6?
- S
  susansmithAug 19, 2025
  The engine oil pressure drop warning lamp may illuminate for several reasons. The engine oil level may be low, requiring you to replenish it. The engine oil filter could be clogged and needs changing. There could be an oil pressure switch malfunction that needs checking or repairing. Also, check for loosened or disconnected wiring or connectors and repair them as necessary.
M
Mr. Wayne Heath Jr.Aug 22, 2025
How to fix coolant temperature rise warning lamp on AirMan SDG100S-6A6?
- H
  hollyhardinAug 22, 2025
  If the coolant temperature rise warning lamp is glowing, it could be due to several reasons. The radiator might be clogged and needs cleaning. A faulty thermostat or coolant temperature switch may need changing. Ensure there's enough coolant and replenish if there is a shortage. The fan belt may be slipping, requiring tension adjustment. Also, check for looseness or disconnection of wiring or connectors and repair them.
G
gestradaAug 28, 2025
What to do if AirMan SDG100S-6A6 Portable Generator generates too high voltage?
- D
  danielperkinsAug 28, 2025
  If your generator is generating too high voltage, even when the voltage regulator knob is turned, there might be a few reasons. Check for loosened or disconnected wiring or connectors to the AVR and repair them. The AVR itself could be faulty and may need to be checked or changed. Additionally, there could be a broken wire or poor contact of the AVR variable resistor, which would require repair or replacement.
D
Dustin WoodAug 31, 2025
Why does AirMan SDG100S-6A6 Portable Generator have unstable voltage generation?
- T
  Teresa RothAug 31, 2025
  Unstable voltage generation can stem from a few potential issues. Begin by inspecting all terminals for poor tightening and correct as needed. A faulty AVR could also be the culprit, necessitating a check or replacement. Lastly, verify that the function circuit protector (CP) for AVR protection hasn't been tripped, and reset if required.
T
Tracey FrancoSep 3, 2025
What does it mean if the leakage warning lamp glows on AirMan SDG100S-6A6 Portable Generator?
- J
  Jacob ClarkSep 3, 2025
  If the leakage warning lamp is glowing, it indicates a leakage issue. This could be due to leakage on the generator side, the load side, or the connecting cable. Alternatively, the leakage relay may be defective. In any case, check and repair the source of the leakage.
K
Kirk MartinezSep 6, 2025
How to troubleshoot a starter that won't rotate on AirMan SDG100S-6A6?
- P
  Patricia JonesSep 6, 2025
  If the starter does not rotate or has a low revolution speed, it may be due to a battery malfunction. Check the battery and charge or change it as needed.
M
Michael BentonSep 9, 2025
Why is the recharging warning lamp glowing on my AirMan Portable Generator?
- R
  Ryan GallagherSep 9, 2025
  If the recharging warning lamp is glowing, it could indicate an alternator problem, which would need to be checked or changed. Alternatively, there might be looseness or disconnection of wiring or connectors, which should be checked and repaired.
L
Lisa MorrisSep 12, 2025
What causes the air filter clogging warning lamp to flicker on AirMan SDG100S-6A6?
- M
  Matthew VillanuevaSep 12, 2025
  The flickering of the air filter clogging warning lamp is caused by air filter clogging. Clean the air filter.
J
Julie OwensNov 24, 2025
Why is my AirMan SDG100S-6A6 Portable Generator generating no voltage or too low voltage?
- C
  Chad JohnsonNov 24, 2025
  If your generator produces no voltage or too low voltage even when operated at a rated speed, several factors could be responsible. The voltmeter may be faulty and needs checking or changing. Check for poor tightening of terminals and repair them. There might be a broken or short-circuited winding of the generator main unit, requiring inspection and repair. The AVR could be faulty and needs checking or changing. A faulty silicon rectifier or exciter may also be the cause, requiring inspection and replacement if necessary. Check for a broken or short-circuited circuit to the exciter field winding and repair it. Verify that the AVR frequency selection switch is set correctly for the operating frequency. Finally, the function circuit protector (CP) for AVR protection might be activated, requi...

Summary

Preface

Safety

Caution before Operation

Precautions to follow before starting the generator unit.

Caution during Operation

Safety measures to observe while the generator is running.

Cautions during Inspection and Maintenance

Safety guidelines for inspection and maintenance tasks.

Safety Warning Labels

Identification of safety warning labels on the machine.

Part Names

Unit Appearance and Part Names

Identifies external parts of the generator unit with a diagram.

Internal Components

Details the internal components of the generator unit.

Installation

Transporting Unit

Guidelines and warnings related to moving and transporting the generator.

Place and Conditions of Unit Installation

Guidelines for selecting an appropriate installation location and conditions.

Selecting Cable

Guidance on choosing the correct electrical cables based on current and distance.

Connecting Load

Procedures and warnings for connecting electrical loads to the generator.

Grounding Method

Explains the proper methods for grounding the generator and its connections.

Selector Valve of Fuel Pipe

Information on the fuel selector valve and its operation for fuel supply.

Operation

Instrument panel

Overview and identification of the generator's instrument panel components.

Protection device

Details on the generator's safety and protection systems and indicators.

Check before Starting the Unit

Essential pre-operation checks for engine oil, coolant, fuel, and belts.

Unit Operation

Procedures for starting, operating, and monitoring the generator.

Stopping Procedures

Steps for safely shutting down the generator unit.

Adjustment of frequency

How to adjust and set the generator's operating frequency.

Emergency Stop

How to use the emergency stop button and reset the system.

Air Bleeding

Procedure for bleeding air from the fuel system if the engine stops.

Periodic Inspection;Maintenance

Important Items at Periodic Inspection and Maintenance or after Maintenance

Key considerations and precautions for inspection and maintenance tasks.

Daily Inspection and Keeping Operation Log

Daily checks and importance of maintaining an operation log for performance.

Periodic Inspection List

A checklist of inspection and maintenance items with intervals and remarks.

Periodic Replacement of Parts

List of parts requiring periodic replacement and their part numbers.

Maintenance Procedures

Detailed procedures for routine maintenance tasks like oil, filter, and coolant changes.

Maintenance;Adjustment

Maintenance of Battery

Battery maintenance, charging, and handling.

Troubleshooting

Identifies common symptoms, causes, and counter-measures for generator issues.

Storage of the Unit

Preparation for Long-term Storage

Procedures for preparing the generator for extended periods of non-use.

Specifications

Specifications

Technical data for generator models including electrical and physical data.

Outline drawing

Dimensional drawings and physical layout of the generator units.

Wiring Diagram

Generator Wiring Diagram

Electrical wiring schematics for the generator's main system components.

Engine Wiring Diagram

Electrical wiring schematics specific to the generator's engine control systems.

AirMan SDG100S-6A6 Specifications

General

Model	SDG100S-6A6
Fuel Type	Gasoline
Starting System	Recoil Start
Maximum Output	1000W
Engine Type	4-Stroke OHV
Noise Level	65 dB
AC Output	230V

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