TROUBLESHOOTING

Lamp Troubleshooting Guide

Use the following procedure and wiring diagram on the next page to determine which of the four lamps is not functioning:

Connections

1.Make sure that lamp #1 power cable is plugged into the J1 connector on the T-Bar assembly.

2.Make sure that lamp #2 power cable is plugged into the J2 connector on the T-Bar assembly.

3.Make sure that lamp #3 power cable is plugged into the J3 connector on the T-Bar assembly.

4.Make sure that lamp #4 power cable is plugged into the J4 connector on the T-Bar assembly.

5.With the voltmeter set to the AC position, connect the negative lead of the AC voltmeter to any (neutral) white wire on the junction terminal block.This block connects all the neutral wires (white) in the system.

6.Connect the positive lead of the voltmeter to the output side of CB1 and observe that 230 VAC is present. Make sure circuit breaker is ON.

7.Repeat step 1-6 for CB2 thru CB4.

8.If the correct output voltages are present for CB1 thru CB4 then it can be assumed that the generator is working correctly and the correct voltage (230 VAC) are being supplied to the ballast.

Starting

1.Start the generator and verify that there are no abnormal sounds.

2.Turn CB1 thru CB4 circuit breakers to the ON position.

3.Wait a few minutes and determine which lamp is not igniting.

4.If one of the lamps is OFF, disconnect its power cable and plug it into a receptacle that is known to be working. DO NOT unplug a power cable from the T-Bar while power is being supplied by the generator. Always turn the circuit breaker OFF before unplugging a power cable.

5.If the lamp still does not ignite after plugging it into a working receptacle (380-440 VAC present to ignite the arc tube), then it can be assumed that the ballast for that lamp is defective. Replace ballast.

Ballast Removal:

1.Remove the power cable from the generator, and make sure that no voltage is being supplied to the ballast compartment.

2.Remove the four screws securing the ballast cover, and remove cover.

3.Make sure to discharge the ballast capacitor.

4.Remove the defective ballast, taking care to guard against electrical shock when coming in contact with the ballast and capacitor. The capacitor is known to store an electrical charge, that when discharged could result in a harmful shock. Make sure to discharge capacitor.

LT12Dab LIGHT TOWER • operation manual — rev. #0 (06/03/11) — page 41

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Multiquip LT12DAB Lamp Troubleshooting Guide, Connections, Starting, Ballast Removal, Repeat -6 for CB2 thru CB4

LT12DAB specifications

The Multiquip LT12DAB is an innovative and reliable light tower designed to deliver efficient lighting solutions for various outdoor applications. Known for its robust construction and user-friendly features, the LT12DAB is ideal for construction sites, events, and emergency situations, providing flexibility and performance in a compact package.

One of the standout features of the LT12DAB is its powerful lighting system. It is equipped with four high-intensity LED lights, each delivering up to 12,000 lumens, ensuring ample illumination for expansive areas. The LED technology not only enhances visibility but also offers advantages in power consumption, resulting in reduced energy costs and longer operational life. The tower can be raised up to 30 feet, enabling it to cast a broad beam of light across large outdoor spaces.

The LT12DAB is built with advanced mobility in mind. It features a durable, weather-resistant frame that can withstand various environmental conditions, making it suitable for use in diverse locations. The all-terrain wheels provide enhanced maneuverability, allowing operators to transport the unit easily across job sites or uneven terrains. Additionally, the lightweight design ensures that it can be easily handled by a small crew.

Powering the LT12DAB is a reliable and fuel-efficient diesel generator that provides extended run times without frequent refueling. This generator not only supports the lighting system but can also power additional tools and equipment, adding versatility to its functionality. The unit is designed with low noise emissions, making it ideal for operation in noise-sensitive areas.

Ease of use is paramount in the design of the LT12DAB. The intuitive control panel allows users to operate the lights and generator effortlessly. The telescopic mast can be raised or lowered quickly, with safety features in place to prevent accidental collapse. Moreover, the integrated sensors monitor the oil levels and engine temperature, providing alerts for maintenance needs.

In summary, the Multiquip LT12DAB combines powerful lighting capabilities with robust construction and user-friendly features. Its mobility, energy efficiency, and reliability make it a valuable tool for any outdoor project, ensuring that worksites remain well-lit and safe, regardless of the conditions. Whether for construction, events, or emergencies, the LT12DAB stands out for its performance and adaptability, meeting the demands of today’s professional environments.