90556352 ST4500.qxd: chainsaw booklet new 10/20/09 8:03 AM Page 7

RELOADING LINE ST4500

USE ONLY .065 in. (1.65mm) DIAMETER NYLON MONOFILAMENT LINE. Heavier line will overload the motor and cause overheating. This line is available at your local dealer or authorized service center.

Do not use fishing line or other

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lines that are not recommended.

 

1. Unplug extension cord at trimmer.

2. Remove the bump cap by pulling up while depressing the two release tabs on the sides of the hub at the points shown in figure 11.

NOTE: It may be necessary to pull up on the cap while depressing the release tabs one side at a time.

3.Remove any broken cutting line, wrap the remaining line tight and reinsert spool into hub as

follows.12 a.Wind the line tight enough so

that it is all below the edges of the flanges on the spool. If it extends past the flanges, it wonʼt fit into the hub.

b.Place the loose end of the cutting line through the gap in the spool flange as shown in figure 12. (Either gap will do but try to leave yourself about 3 or 4 inches of line to work with.)

c. Holding the line in the gap,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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insert the end through the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

eyelet in the hub and slip the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

spool into the hub, as shown

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in figure 13.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Make sure the spring is still in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

place in the hub. If the spool

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

does not slip into the hub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

easily, press gently and pull

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

straight out on the cutting line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

that protrudes through the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

eyelet.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Once the spool drops into the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

hub, align the release tabs on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the shroud with the slots in the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

hub as shown in figure 14 and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

press the shroud into place. Be

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sure that both release tabs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

snap into place.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. To replace the line on a spool,

follow the steps below 15 a.Locate, on the empty spool,

one of the two small holes shown in figure 15.

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Black & Decker 90556352, ST7700 instruction manual Reloading Line ST4500
Page 6 Page 8

90556352, ST7700 specifications

The Black & Decker ST7700,90556352 is a versatile and powerful string trimmer designed to tackle tough landscaping tasks with ease and efficiency. With its robust design and cutting-edge features, this tool is perfect for both residential and commercial use, making lawn care a breeze.

One of the standout features of the ST7700 is its powerful 5 amp motor, which provides ample cutting power for trimming and edging tasks. This motor allows the trimmer to handle thick grass, weeds, and even light brush, ensuring that users can achieve a well-manicured lawn without the hassle of multiple passes. The trimmer’s cutting swath of 13 inches enhances productivity, allowing users to cover larger areas in shorter amounts of time.

The ST7700 employs a corded electric design, eliminating the need for gas and oil, which not only reduces environmental impact but also makes it easier to start and operate. This feature is particularly appealing for those looking to minimize maintenance and upkeep. Users simply plug in the trimmer and are ready to go, without worrying about fuel mixing or engine troubles.

In terms of comfort and usability, the Black & Decker ST7700 is designed with an adjustable handle that provides excellent ergonomics. The handle can be adjusted to different heights, accommodating users of various sizes and ensuring a comfortable grip during extended use. A lightweight design further enhances maneuverability, making it easy to navigate around flower beds, trees, and other obstacles.

Another notable technology in the ST7700 is its automatic feed spool, which helps to streamline the cutting process by ensuring a continuous supply of line without requiring manual adjustments. This allows users to focus on the task at hand without frequent interruptions, making the trimming process more efficient.

In summary, the Black & Decker ST7700,90556352 is a robust and user-friendly string trimmer ideal for homeowners and landscapers alike. With its powerful motor, efficient cutting swath, corded electric design, ergonomic handle, and automatic feed spool, it’s engineered to provide exceptional performance in maintaining tidy lawns. Whether trimming edges or tackling overgrown areas, this trimmer stands out for its reliability and ease of use, making it a valuable addition to any outdoor toolkit.
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