Subaru Robin Power Products EH64 Spark Plug Maintenance and Replacement, Checking Batteries

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SPARK PLUG MAINTENANCE AND REPLACEMENT

Refer to the Specifications for spark plug type and gap specifications. Check and clean spark plugs every 200 hours. Replace plugs every 500 hours.

To prevent cross threading the spark plug, always thread it in by hand until it seats. If the spark plug is being reused, turn it with a wrench and additional 1/4 turn. If the spark plug is new, turn it an additional 3/8 to 1/2 turn. If you have a torque wrench, tighten a new spark plug to 11.8-14.7 N-m (120-150 Kg/cm) (8.7-10.9 ft/lb).

CHECKING BATTERIES

Every 50 hours or once a month check the fluid level of the battery. Refill with distilled water if levels are low.

To adjust the speed control solenoid:

1Run the engine with no load until the engine control times out (about 15 seconds) and energizes the solenoid.

2Adjust engine to 2200 RPM by loosening the two slotted screws retaining the solenoid.

3Slide solenoid forward to increase the speed, or backwards to decrease the speed.

4Retighten the two screws.

Following reassembly of either the carburetor or intake manifold, re- align the governor arm on the governor shaft BEFORE making speed adjustments to compensate for the slightly different alignment of parts.

!WARNING

!WARNING

Battery gas is explosive. Wear safety glasses and do not smoke while servicing batteries. Lead acid batteries give off a highly explosive hydrogen gas which can be ignited by flame, electrical arcing or smoking.

If the battery is to be replaced, disconnect the

Governor and Speed Control Assembly

1

2

3

negative cable first, and reconnect it last.

4

6

Adjustments

CARBURETOR ADJUSTMENTS

These engines have precision-manufactured carburetors which are not adjustable.

Engine Speed Solenoid (Optional)

Normally, the engine speed does not require any adjustment. These instructions are for the equipment manufacturer in setting up and adjusting the equipment.

The speed control solenoid monitors the rate of the load and automati- cally adjusts the engine to the appropriate idle speed.

5

7

1Speed Control Solenoid Adjust Screw (2) (Optional)

2Governor Adjust Screws

3Governor Lever

4Speed Control High Stop Adjust Screw

5Manual Throttle Control Link

6Low Idle Adjust Screw

7Choke Control Linkage

33

34

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Contents Instructions for USE Model EH64 Welder Application Warranty Periods General Safety PrecautionsBatteries Keep the Unit and Surrounding Area CleanProtect Against Moving Parts Fuel SystemsModel Identification IntroductionAbout this Manual Description FeaturesLocating InstallationFuel Fuel TankRecommendations Engine OILFilling and Change Interval Starting BatteriesWiring Battery CablesFlex Coupling Belt DriveStarting OperationPRE-START Checks Stopping HOT and Cold Weather PrecautionsEngine BREAK-IN Operating in Dusty ConditionsReturning the Engine to Service OUT-OF-SERVICE ProtectionDaily 8 Hour Maintenance Periodic MaintenanceChanging OIL and Filter Air Cleaner Element Replacement AIR Cleaner MaintenanceOuter Cover Foam FilterChecking Batteries Spark Plug Maintenance and ReplacementCarburetor Adjustments Troubleshooting Speed Control AdjustmentsEmission Control Information Important Information for California Engine UsersFederal Emissions Component Defect Warranty Limited Warranty HOW to File a Claim High Altitude Engine Operation How to remove the spark arrestorSpark Arrestor Optional Spark Arrestor ScreenIndustrial Products Division Finding the Robin Service Dealer to Meet Your NeedsRobin Distribution Method

EH64 specifications

The Subaru Robin Power Products EH64 is an advanced engine renowned for its reliability and efficiency, features that have made it a preferred choice in various applications, including industrial, agricultural, and commercial use. Designed to provide superior performance, the EH64 is equipped with a wide range of features that maximize its operational capabilities.

One of the standout characteristics of the EH64 is its lightweight design. Weighing in at just 64 pounds, this engine combines portability with powerful output, making it ideal for both mobile and stationary applications. The EH64 is powered by a high-performance 4-stroke, air-cooled engine that delivers a robust 6.4 horsepower. This output is sufficient for a variety of tasks, including powering equipment such as pumps, generators, and small machinery.

A key technology incorporated into the EH64 is Subaru’s advanced combustion technology. This engine employs a precision-engineered combustion chamber designed to enhance fuel efficiency while minimizing emissions. The result is a cleaner, more efficient burn that not only extends the engine's lifespan but also aligns with modern environmental standards. The engine operates smoothly across a range of speeds due to its excellent throttle response, providing consistency and control during operation.

Moreover, the EH64 features a dual-balanced crankshaft design that significantly reduces vibration. This design not only enhances comfort during operation but also increases the durability of the engine by minimizing wear and tear on internal components.

The Subaru Robin EH64 is also designed with user-friendliness in mind. It features an easy-start recoil mechanism, allowing for quick and reliable ignition, even in cold weather conditions. Furthermore, the engine includes a durable aluminum alloy cylinder, which provides increased heat dissipation and reduces the risk of overheating during extended use.

Maintenance is simplified with the EH64, thanks to its accessible layout, making routine checks and servicing straightforward. The engine's durable construction ensures that it can withstand the rigors of demanding environments, providing users with years of reliable service.

In summary, the Subaru Robin Power Products EH64 stands out in the market for its combination of lightweight design, powerful performance, advanced technologies, and user-friendly features. Whether for commercial usage or personal projects, the EH64 exemplifies quality and reliability, making it a preferred choice among engine options.
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