Section 4 — Maintenance

Liquid-cooled 15, 20 and 25 kW Generators

3.Install a new lower intake manifold gasket.

4.Position the lower intake manifold to the cylinder head.

5.Install retaining bolts/studs finger tight.

6.Tighten all bolts/studs to specifications in the tightening sequence shown:

•First pass = 7=10 N-m (5-7 lb-ft).

•Final pass = 26-38 N-m (19-28 lb-ft).

4.4CYLINDER HEAD PROCEDURE

1.Position head gasket on the block (Figure 4.2).

2.Position cylinder head to cylinder block.

3.Install 10 cylinder head bolts in numerical sequence. Tighten to 70 N-m (52 lb-ft) in sequence. Retighten to 70 N-m (52 lb-ft) in sequence. Then turn all head bolts an additional 90 - 100 degrees in sequence.

Figure 4.2 — Cylinder Head Installation

4.5COOLING SYSTEM

Air intake and outlet openings in the generator com- partment must be open and unobstructed for contin- ued proper operation. This includes such obstruc- tions as high grass, weeds, brush, leaves and snow.

Without sufficient cooling and ventilating air flow, the engine/generator quickly overheats, which causes it to shut down. (See the installation diagram.)

20

The exhaust system parts from this product get extremely hot and remains hot after shutdown. High grass, weeds, brush, leaves, etc. must remain clear of the exhaust. Such materials may ignite and burn from the heat of the exhaust system.

4.6OVERLOAD PROTECTION FOR

ENGINE DC ELECTRICAL SYSTEM

Engine cranking, start up and running are controlled by a solid state Engine Controller circuit board. Battery voltage is delivered to that circuit board via a 15 amp fuse. These overcurrent protection devices will open if the circuit is overloaded.

If a circuit breaker opens or a fuse element

!melts, find the cause of the overload before resetting the circuit breaker or replacing the fuse.

4.7CHECKING FLUID LEVELS

‹4.7.1 CHECK ENGINE OIL

Check engine crankcase oil level (Figure 4.3) at least every 20 hours of operation, or prior to use.

•Remove oil dipstick and wipe dry with a clean, lint-free cloth.

•Install oil dipstick, then remove again.

•Oil should be between FULL and ADD marks.

•If oil level is below the dipstick ADD mark, remove oil fill cap. Add the recommended oil to bring oil level up to the FULL mark. DO NOT FILL ABOVE THE “FULL” MARK. See “Engine Oil Recommen- dations” for recommended oils.

Figure 4.3 - Oil Dipstick and Oil Fill Cap

Oil Fill Cap

Engine

Air Cleaner

Oil Dipstick

Oil

Filter

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Generac 005031-0 (25kW) Cylinder Head Procedure, Cooling System, Overload Protection for Engine DC Electrical System
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005030-0 (15kW), 005031-0 (25kW) specifications

Generac has long been recognized as a leader in backup power solutions, and its 005031-0 (25kW) and 005030-0 (15kW) home standby generators exemplify the brand's commitment to reliability and performance. Designed for residential use, these generators provide peace of mind during outages, ensuring that homes remain powered even in the most challenging conditions.

One of the standout features of both models is their advanced Generac G-Force engine, which is engineered for longevity and impressive power output. The G-Force engine is built from the ground up for generator use, refined to handle the unique demands of continuous operation. This results in a highly durable system that requires little to no maintenance, making it a favored choice for homeowners looking for a reliable energy solution.

Another important characteristic is the True Power technology featured in both generators. This technology delivers clean, stable power that is safe for sensitive electronics and appliances. It ensures that devices such as computers and medical equipment operate smoothly without the risk of damage from power fluctuations. Additionally, the Generac 005031-0 and 005030-0 generators are equipped with the Quiet-Test mode, allowing them to run at lower RPMs during routine weekly self-tests. This innovation significantly reduces the noise produced during tests, making it less disruptive for residents.

Furthermore, these generators come with a user-friendly interface and a mobile link app, enabling homeowners to monitor their generator's performance remotely via a smartphone. This feature enhances convenience, allowing users to receive alerts and notifications about their generator's status, maintenance needs, and operation conditions right from their devices.

Both the 25kW and 15kW models are also designed with a robust transfer switch, which seamlessly shifts power from the grid to the generator in case of any outages. This automatic transfer feature ensures that homes maintain power without needing manual intervention, making them ideal for those who want uninterrupted electricity.

In terms of fuel source, both models operate on natural gas or propane, providing flexibility to homeowners regarding fuel availability and preferences. With excellent warranty options and Generac's reputation for quality, both the 005031-0 (25kW) and 005030-0 (15kW) generators stand as dependable choices for safeguarding homes from the unpredictability of power outages.
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