Section 3 — Maintenance

Residential Portable Generator System

Figure 21 - Spark Arrestor

When valve clearance is correct, hold the pivot ball stud in place

 

with the allen wrench and tighten the rocker arm jam nut. Tighten

 

the jam nut to 174 in/lbs. torque. After tightening the jam nut,

 

recheck valve clearance to make sure it did not change.

 

Figure 22 - Valve Clearance Adjustment

3.6 ADJUSTING VALVE CLEARANCE

After the first 50 hours of operation, you should adjust the valve clearance in the engine.

Important: If you feel uncomfortable about doing this procedure or you don't have the proper tools, please take your generator in to the nearest service center to have the valve clearance adjusted. This is a very important step to insure longest life for your engine.

To adjust valve clearance:

•Make sure the engine is at room temperature (60° - 80° F).

•Make sure that the spark plug wire is removed from the spark plug and out of the way.

•Remove the four screws attaching the valve cover with a #2 or #3 phillips screwdriver.

•Make sure the piston is at Top Dead Center (TDC) of its compression stroke (both valves closed). To get the piston at TDC, remove the intake screen at the front of the engine to gain access to the flywheel nut. Use a large socket and socket wrench to rotate the nut and hence the engine. While watching the piston through the spark plug hole. The piston should move up and down. The piston is at TDC when it is up as high as it can go.

•Loosen the rocker jam nut. Use an 10mm allen wrench to turn the pivot ball stud while checking clearance between the rocker arm and the valve stem with a feeler gauge. Correct clearance is 0.002-0.004 inch (0.05-0.1 mm).

•Install new valve cover gasket.

•Re-attach the valve cover.

NOTE: Start all four screws before tightening or you will not be able to get all the screws in place. Make sure the valve cover gasket is in place.

•Re-attach the spark plug wire to the spark plug.

•Repeat the process for the other cylinder.

NOTE: You must hold the rocker arm jam nut in place as you turn the pivot ball stud.

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Image 19
Generac 004583-0 owner manual Adjusting Valve Clearance, To adjust valve clearance
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004583-0 specifications

Generac 004583-0 is a powerful and efficient home standby generator designed to provide reliable backup power during outages. This unit is specifically engineered to ensure that homeowners never have to worry about the disruption caused by power loss, keeping essential appliances and systems running smoothly, regardless of external conditions.

At the heart of the Generac 004583-0 is its robust engine, which delivers a peak output of 22 kW and is capable of running on either propane or natural gas. This fuel flexibility makes it an ideal choice for a variety of households, allowing users to select the fuel source that best fits their needs. The generator employs a high-performance, air-cooled engine featuring a durable construction that ensures long-lasting operation, and this reliability translates into peace of mind for homeowners.

One of the standout features of the Generac 004583-0 is its advanced Automatic Transfer Switch (ATS). The ATS seamlessly detects power outages and automatically switches the home’s electrical supply to the generator within seconds. This quick response is crucial for maintaining comfort and safety, especially during extreme weather conditions. The ATS also offers customizable settings, allowing homeowners to prioritize which circuits they want to power during an outage.

In addition to its seamless operation, the Generac 004583-0 integrates innovative technologies such as Mobile Link. This feature enables users to monitor the generator remotely via a smartphone app, providing real-time updates on the system’s status and maintenance needs. This connectivity enhances user experience and simplifies the management of the generator.

The generator is designed with a noise-reduction enclosure, ensuring that it operates quietly without disturbing daily life or neighborhood peace. Furthermore, the unit is built to withstand various weather conditions, featuring corrosion-resistant materials that ensure durability and a long service life.

Safety is paramount, and the Generac 004583-0 incorporates various safety features such as low oil and high-temperature shut-off sensors. These safeguards protect the engine and enhance the overall reliability of the device.

In summary, the Generac 004583-0 is a top-tier standby generator that combines power, efficiency, and advanced technology. With its robust engine, seamless automatic transfer capabilities, remote monitoring, and focus on safety and durability, it stands out as an excellent solution for homeowners seeking reliable backup power.
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