Generac Power Systems MLT6SMD

Questions and Answers

C
Cory RussellJul 31, 2025
How to troubleshoot Generac Power Systems Lighting Equipment that cranks but won't start?
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  yphillipsJul 31, 2025
  If your Generac Power Systems Lighting Equipment cranks but doesn't start, it could be due to several reasons. First, check the fuel level in the tank. An obstructed fuel flow could also be the culprit, so inspect the fuel pump operation, the fuel supply hose from the tank to the fuel filter for any cracks or abrasions, and check for gelled fuel in the fuel system, especially at the fuel filter during cold weather. Air in the fuel system can also prevent starting, so purge any air from the system. Additionally, inspect the air filter for any blockages. If the glow plug(s) are inoperable, refer to the OEM engine operator’s manual for additional information.
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Laura GoodmanAug 4, 2025
Why does my Generac Power Systems Lighting Equipment start, but then stumbles and dies?
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  Raymond MontgomeryAug 5, 2025
  If your Generac Power Systems Lighting Equipment starts but then stumbles and dies, consider these potential causes. First, verify if the ambient temperature is within the unit's limits. Also, inspect the engine air inlet heater functionality. Finally, purge air from the fuel lines.
J
John FloresAug 9, 2025
What to do if Generac Power Systems Lighting Equipment has a high coolant temperature shutdown?
- D
  Dr. Renee KingAug 9, 2025
  If your Generac Power Systems Lighting Equipment experiences a high coolant temperature shutdown, take the following steps. Allow the engine to cool, then check the coolant level in the radiator and add coolant if needed. Inspect the radiator surroundings for any blockage and remove any foreign matter. Check for visible coolant leaks and inspect the tension of the water pump drive belt. If the cooling fan is inoperable, remove the load on the generator and restart the engine. Also, check the coolant temperature and shut the engine down immediately if it starts to overheat.
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Eric WoodsAug 13, 2025
Why does Generac Power Systems Lighting Equipment stall when using export power?
- K
  Kelsey MartinezAug 13, 2025
  If your Generac Power Systems Lighting Equipment stalls when export power is used, it may be due to the load exceeding the unit's rating. Turn the outlet breaker ON and the load sense switch OFF, then confirm that the generator output is 60 Hz ± 2 Hz before reapplying the load.
R
Raymond BellAug 17, 2025
What causes one or more lights to not turn on in Generac Power Systems Lighting Equipment?
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  Larry HarrisonAug 18, 2025
  If one or more lights on your Generac Power Systems Lighting Equipment do not turn on, inspect the light breakers. Also, check the electronic control to see if the lights are on, and turn them on if they are not.
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Benjamin HarrisAug 22, 2025
Why are the lights flashing on my Generac Power Systems Lighting Equipment?
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  Hannah MontesAug 22, 2025
  If the lights on your Generac Power Systems Lighting Equipment are flashing, it could be due to a few reasons. You may need to adjust the dusk-to-dawn sensor. Another possible cause is a low generator frequency, so verify that the AC frequency is greater than 40 Hz.
C
Christopher MonroeAug 26, 2025
What to do if Generac Power Systems Lighting Equipment has a low oil pressure shutdown?
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  Amber WeaverAug 26, 2025
  If your Generac Power Systems Lighting Equipment experiences a low oil pressure shutdown, check the oil level and add oil if necessary. If the oil level is sufficient, the oil pump may be inoperable, in which case you should contact a GMP ASD.

Summary

Introduction and Safety

Read This Manual Thoroughly

Emphasizes the importance of reading and understanding the entire manual before operating the equipment.

Safety Rules

Provides essential safety guidelines and warnings for operating the light tower, covering general and specific hazards.

General Hazards

Explosion and Fire Hazards

Electrical Hazards

Battery Hazards

Fuel Hazards

Engine Safety

Operating Safety

General safety precautions for operating the unit, including positioning, starting, and environmental conditions.

Raising and Lowering the Mast

Service Safety

Towing Safety

General Information

Specifications

Detailed technical specifications for the light tower, including engine, generator, lighting, and trailer.

Control Panel

Overview of the unit's control panel, showing the layout of buttons, indicators, and displays.

Control Panel Features and Functions

Detailed explanation of each button, switch, and receptacle on the control panel.

ECOSpeed Engine

Information on the ECOSpeed engine technology and its variable speed operation based on load.

PowerZone-DLA

Description of the PowerZone-DLA auto start controller, its functions, and monitoring capabilities.

Operator Screens

Operation

Light Tower Setup

Step-by-step instructions for setting up the light tower, including positioning, leveling, and outriggers.

Prestart Checklist

A comprehensive checklist of essential checks to perform before starting the unit.

Raising the Mast-Manual Winch

Procedure for safely raising the mast using the manual winch system.

Raising the Mast-Electric Winch (If Equipped)

Procedure for safely raising the mast using the electric winch system.

Manually Starting the Unit

Step-by-step guide for starting the generator in manual mode using the control panel.

Light Operation

Shutting Down the Unit

Procedure for safely shutting down the unit, including load removal and switch sequences.

Automatic Shutdown

Lowering the Mast-Manual Winch

Procedure for safely lowering the mast using the manual winch system.

Lowering the Mast-Electric Winch (If Equipped)

Procedure for safely lowering the mast using the electric winch system.

Towing the Unit

Comprehensive steps for preparing the unit for towing, including jack and hitch adjustments.

Maintenance

Daily Walk-Around Inspection

Essential daily inspection checklist to ensure unit safety and prevent damage.

General Maintenance

Importance of regular maintenance for safety, performance, and longevity of the equipment.

Inspecting the Unit

Basic Maintenance Schedule

A schedule outlining recommended intervals for routine maintenance tasks and inspections.

Troubleshooting

General Troubleshooting

General warnings and guidance for troubleshooting, emphasizing safety and seeking qualified assistance.

Troubleshooting Table

A table listing common problems, their possible causes, and recommended solutions.

Generac Power Systems MLT6SMD Specifications

General

Model	MLT6SMD
Type	Mobile Light Tower
Light Source	LED
Number of Lights	4
Fuel Type	Diesel
Luminaire Type	LED
Number of Lamps	4
Power Output	6 kW
Voltage	120/240V
Frequency	60 Hz
Starting System	Electric
Operating Hours	105 hours
Genset Engine Type	Kubota D1005BG
Engine Type	Kubota D1005BG
Noise Level	67 dBA at 23 ft (7 m)