WARNING:

Before connecting this generator to any building’s electrical system, a licensed electrician must install an isolation (transfer) switch.

Serious injury or death may result without this transfer switch.

GA-6HZ FAMILIARIZATION

Generator

The Multiquip Model GA-6HZ generator has been designed as a portable lightweight power source for 60 Hz (single- phase) vibrators, lighting facilities, power tools, submersible pumps and other industrial and construction machinery.

This generator is powered by a HONDA gasoline engine. The alternator, a brushless revolving-field type, is permanently aligned to the engine through rigid coupling.

The generator is mounted on rubber vibration isolators that have a steel base backplate which is attached to the protective steel pipe carrying frame.The protective carrying frame is made of steel tubing and fully wraps around the generator to protect against damage.

This portable generator is supplied with a electrical control box. To reduce vibration caused by the engine, the control box is also placed on rubber isolators.

Control Box

The control box has the following: (all outputs are 60 Hz, single phase)

zOne 120V output receptacle.

zOne 240V output receptacle.

zOne 120V output receptacle (GFI protected).

zOne main 21 amp circuit breaker.

zAC Voltmeter

zIdle Control Switch

zFull Power Switch

zOperation Switch

GA-6HZ— GENERAL INFORMATION

Excitation System

All GA-series generators use a magnet attached to a flywheel to produce AC voltage from a lamp coil beneath the flywheel. As the magnet passes the coil it produces approximately 19-22 AC volts.

This voltage (19-22 VAC) is then sent to the control box that contains three rectifying diodes:

zExcitation (diode 1)

zBattery (diode 2)

zSlow Down (diode 3)

The AC voltage will pass through the excitation diode that converts the voltage to DC power.

This DC power is then sent to the excitation windings housed within the main windings commonly called the "stator".

This voltage is then transferred into the rotor through induction.The rotor contains two diodes within it which rectify the DC voltage and send it out through the main windings, as AC voltage.

Engine

The four-cycle air-cooled HONDA gasoline engine is designed to meet every performance requirement of this generator. Reference Table 1, page 8 for engine specifications.

Figure 1 (page 10) shows the basic controls and indicators for the GA-6HZ generator.

NOTE

In keeping with Multiquip's policy of constantly improving its products, the specifications quoted herein are subject to change without prior notice.

GA-6HZ A.C. GENERATOR — PARTS & OPERATION MANUAL — REV. #4 (10/08/04) — PAGE 9

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Multiquip operation manual GA-6HZ- General Information
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GA-6HZ specifications

The Multiquip GA-6HZ is a robust and versatile generator designed for reliability and efficiency in various applications. Known for its powerful performance, the GA-6HZ is widely used in construction, events, and other high-demand environments where a consistent power supply is crucial.

One of the standout features of the GA-6HZ is its impressive engine, powered by a reliable Honda GX390. This air-cooled engine boasts a powerful output, providing ample power for a wide range of tools and equipment. The sturdy construction of the generator ensures it can withstand harsh job site conditions while delivering exceptional performance.

The GA-6HZ is equipped with a 6 kW maximum output, making it suitable for powering multiple devices simultaneously. The generator features both 120V and 240V outlets, allowing for versatile applications. The inclusion of a duplex outlet and a twist-lock outlet further enhances its usability, making it capable of meeting various power demands.

In terms of technology, the GA-6HZ employs a sophisticated alternator design that minimizes voltage fluctuations, ensuring stable power delivery even under varying loads. The generator also features an automatic voltage regulator (AVR) that enhances the efficiency and consistency of operation. This technology contributes significantly to the generator’s reliability, as it protects sensitive electronics from fluctuations that could cause damage.

Portability is another key characteristic of the GA-6HZ. It is designed with a compact footprint and features built-in lifting handles, making transportation to and around job sites convenient. Additionally, the generator is equipped with a large fuel tank that allows for extended run times, further minimizing downtime during crucial projects.

Another notable characteristic is its user-friendly control panel. The GA-6HZ features clearly labeled controls and gauges, allowing operators to monitor performance easily. The generator also has multiple safety features, including a low oil shutdown, ensuring that it operates smoothly without risking damage or safety hazards.

In summary, the Multiquip GA-6HZ stands out as a highly reliable and efficient generator, suitable for various demanding applications. With a powerful engine, versatile output options, advanced technology, and user-friendly features, it remains a popular choice among professionals seeking dependable power solutions.
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