Section 4 — Maintenance

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators

NOTE:

If the fault is not repaired, the overcrank feature will continue to activate.

1.Start the generator by moving the Auto/ Off/Manual switch to the MANUAL position. Allow it to run for a short while and then shut it down by moving the switch to the OFF position.

3.7.3.1 Approximate Crank Cycle Times

•15 seconds ON

•7 seconds OFF

•7 seconds ON

•7 seconds OFF

•Repeat for 45 seconds Approximately 90 seconds total

‹3.7.4 OVERSPEED

This feature protects the generator from damage by shutting it down if it happens to run faster than the preset limit. This protection also prevents the gener- ator from supplying an output that could potentially damage appliances connected to the generator circuit. Contact the nearest Generac/Guardian Authorized Dealer if this failure occurs.

2.Remove the dipstick and wipe it dry with a clean cloth.

3.Install the dipstick; then, remove it again. The oil level should be at the dipstick “Full” mark. If nec- essary, add oil to the “Full” mark only. DO NOT FILL ABOVE THE “FULL” MARK.

Never operate the engine with the oil level

!below the “Add” mark on the dipstick. Doing this could damage the engine.

4.Install the dipstick.

5.Reset the Auto/Off/Manual switch to its original position.

Figure 4.2 — Oil Dipstick and Fill, 7 kW

4.1 FUSE

Oil Dipstick and Fill

The generator panel’s 15 amp fuse (Figure 4.1) pro-

 

tects the DC control circuit against overload. The fuse

 

is wired in series with the battery output lead to the

 

panel. If the fuse element has melted open, the engine

 

cannot crank or start. Replace the fuse using only an

 

identical 15-amp replacement.

 

The generator panel’s 5 amp fuse protects the battery charge circuit against overload. If the fuse element has melted open, there will not be battery charging capabilities. Replace the fuse using only an identical 5 amp replacement. To remove fuse, push cap down and rotate counterclockwise.

Figure 4.1 – Generator Control Panel

FUSE

Figure 4.3 — Oil Dipstick and Fill,

12 kW and 15 kW

L o c a t e y o u r n e a r e s t

d e a le r a t :

5A

OFF MAN.

AUTO

FUSE

 

15A

SET

 

EXERCISE

 

TIME

POWER SYSTEMS, INC.

SYSTEM SET

LOW OIL

HIGH TEMP.

OVER SPEED

OVER CRANK

F L A S H IN G G R E E N L E D =

N O U T IL IT Y S E N S E 4 F L A S H IN G R E D L E D S =

E X E R C IS E R N O T S E T

Oil Dipstick

Oil Fill

4.2 CHECKING THE ENGINE OIL LEVEL

For oil capacities, see “Specifications,” Section 1.5. For engine oil recommendations, see Section 4.3.1. To check the engine oil level, proceed as follows (Figures 4.2 and 4.3):

Generac® Power Systems, Inc. 17

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Image 19
Generac Power Systems 04456-1, 04390-1 Checking the Engine OIL Level, Approximate Crank Cycle Times, ‹ 3.7.4 Overspeed
Page 18 Page 20

04389-1, 04456-1, 04390-1 specifications

Generac Power Systems is synonymous with reliable and innovative power solutions for both residential and commercial applications. Among its diverse product lineup, the Generac 04390-1, 04456-1, and 04389-1 stand out due to their robust features, advanced technologies, and user-focused characteristics.

The Generac 04390-1 is a portable generator designed for versatility and efficiency. It is equipped with a powerful OHV engine that enables it to deliver up to 3500 running watts and 4375 starting watts, making it suitable for various applications, such as home backup during outages or powering tools on job sites. The generator features a built-in PowerRUSH technology, which provides a 40% more starting capacity than traditional models, allowing it to handle more demanding appliances and tools simultaneously. Additionally, its lightweight and compact design enhance portability, complemented by a sturdy handle and flat-free wheels.

Moving on to the Generac 04456-1, this model offers a greater output with 7500 running watts and 9400 starting watts. Ideal for larger homes or work environments, it is powered by a heavy-duty, 420cc engine and designed for optimal performance. The unit incorporates an electric start feature for easy operation and includes a low-oil shutdown system that protects the engine from damage, providing peace of mind to users. The reinforced roll-cage design ensures durability, while its quiet operation keeps noise levels to a minimum, making it suitable for more noise-sensitive environments.

Lastly, the Generac 04389-1 generator is particularly characterized by its dual-fuel capability, allowing users to run it on either gasoline or propane. This flexibility ensures seamless operation in various situations, with 5500 running watts on gasoline and 4950 running watts on propane. The model’s advanced engineering includes an easy-to-read fuel gauge, ensuring that users can monitor fuel levels without hassle. This generator is also equipped with a heavy-duty, full-wrap steel frame for resistance against impacts and wear, making it perfect for outdoor use.

Collectively, the Generac 04390-1, 04456-1, and 04389-1 models embody a commitment to quality and innovation. With their powerful engines, enhanced technologies, and user-friendly features, these generators provide peace of mind through reliable power solutions, catering to a multitude of needs for both residential and commercial users alike. Whether for emergency backup or regular use, Generac’s offerings ensure that power is always on hand when it’s needed the most.
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