Idle Speed Adjustment (Fig. 9)

When the idle speed is adjusted properly, the engine will run smoothly, without pressing the THROTTLE LEVER.

If adjustment is required:

1.Start the engine.

2.Using a long, Philips head screwdriver gently close (clockwise) the T-screw until the Powerboard starts to move forward.

3.Then open (counter-clockwise) the screw until the Powerboard stops.

4.You have reached the correct idle speed when the engine runs smoothly below the RPM when the Powerboard starts to move.

Note: Standard idle RPM is about 2500- 3000 RPM.

WARNING!

When the engine is idling, under no circumstances should your powerboard be moving. If the unit continues to move after idle speed adjustment, contact your local Tanaka Dealer.

Cleaning the Air Filter

It is a good idea to occasionally clean the air filter to insure optimum performance.

To clean the air filter:

1.Using a Philips head screwdriver, remove the carburetor cover by turning the cover screw counter clockwise. (Fig. 10)

2.Rinse it in warm soap suds.

3.Check that the filter is dry before reassembly.

4.Put the air filter back into its original position (fig. 11) and replace the cover.

NOTE: An air filter that has been used for some time cannot be cleaned completely. Therefore, it must regularly be replaced with a new one. A damaged filter must always be replaced.

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Tanaka TPB-400GX, TPB-350GX owner manual Idle Speed Adjustment Fig
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TPB-350GX, TPB-400GX specifications

The Tanaka TPB-400GX and TPB-350GX are renowned portable brushcutters designed for both professional landscapers and home gardening enthusiasts. These high-performance tools are engineered to tackle a variety of tough cutting tasks with ease, making them popular choices among users seeking reliability and efficiency.

One of the key features of the TPB-400GX is its robust 40.2cc two-stroke engine, delivering exceptional power and torque. This engine allows the machine to cut through dense vegetation and grass with minimal effort, making it ideal for clearing larger areas or maintaining overgrown landscapes. In contrast, the TPB-350GX is equipped with a smaller yet capable 34.4cc engine, which strikes a balance between power and lightweight design, catering to users who prefer a more manageable tool for lighter tasks.

Both models are designed with user comfort in mind. They feature anti-vibration technology, which minimizes hand fatigue during extended use, allowing operators to work longer without discomfort. The adjustable harness provided with each unit ensures that weight distribution is optimized, enhancing user stability and control.

In terms of cutting technology, both the TPB-400GX and TPB-350GX come equipped with a semi-automatic trimmer head, which simplifies line feed while maximizing efficiency. The dual-line cutting system effectively increases coverage while reducing the time spent on trimming tasks. Moreover, the straight shaft design on both models enhances reach and accessibility, particularly in hard-to-reach areas such as under fences or shrubs.

Durability is a hallmark of the Tanaka brand, and these brushcutters are no exception. Constructed from high-quality materials, both models are resistant to wear and tear, ensuring longevity even in demanding conditions. The TPB-400GX and TPB-350GX also feature an easy-start mechanism, allowing for quick ignition without the frustrating pull starts commonly associated with traditional two-stroke engines.

Overall, the Tanaka TPB-400GX and TPB-350GX are excellent choices for users seeking powerful, versatile, and durable brushcutters. With their combination of advanced technology, user-friendly features, and reliable performance, these models stand out in the competitive landscape of outdoor power equipment. Whether you are a professional landscaper or a dedicated gardener, these tools are sure to enhance your productivity and maintain the health of your outdoor spaces.
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