ADJUSTING THE HEAD UNIT

The head unit will should come adjusted from the factory. However, riding on rough terrain and general use may cause the head unit to become loose over time. It may be necessary to adjust the head unit from time to time.

To adjust the head unit:

1.Rotate the handle bar as far right as it will go to expose the HEAD UNIT.

2.The head unit bearings are held in place by two 40mm nuts on the underside. These nuts are separated by a spacer. The top nut provides the adjustment, while the lower nut is a jamb-nut intended to hold the adjustment nut in place.

3.Loosen the lower nut 3-4 turns (fig. 14)

4.Tighten the top adjuster nut to the desired amount, and then re-tighten the lower jamb-nut.

DO NOT over tighten as it will make it difficult to steer and may damage the bearings.

ADJUSTING THE BELTS

The belts will come adjusted from the factory. However, it may be necessary to adjust the pulleys from time to time. The belts must be well aligned onto the pulleys otherwise they may start to rub and chafe, which will result in shortened belt life.

How tight should the belt be?

If the belt is skipping or jumping on the pulley teeth, this is too loose and may be harmful.

If the belt is making a humming sound when the wheel is turning, this is too tight and may cause the belt to snap.

(continued on next page.)

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Tanaka TPB-350GX, TPB-400GX owner manual Adjusting the Head Unit, Adjusting the Belts, On next, To adjust the head unit
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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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