MAINTENANCE AND REPAIR INSTRUCTIONS

OILING THE CHAIN

The pole saw chain is self-lubricating. Oil is dispersed onto the chain as the unit is used. Keep an adequate amount of oil in the oil tank. Use the bar-chain oil provided in the hardware pack. Always use bar-chain and sprocket oil or similar chain saw oil.

GUIDE BAR MAINTENANCE

Ensure that the unit WARNING: is off and the spark

plug is disconnected (gas powerheads) before performing any maintenance on your saw.

NOTE: Proper maintenance of the guide bar is essential to the performance of your pole saw. Proper guide bar maintenance will keep your saw in good working order.

Most guide bar problems can be prevented merely by keeping the chain saw well maintained.

Incorrect filing and non-uniform cutter and depth gauge settings cause most guide bar problems, primarily resulting in uneven bar wear. As the bar wears unevenly, the rails widen, which may cause chain clatter and difficulty in making straight cuts.

Insufficient guide bar lubrication and operating the saw with a chain that is too tight will contribute to rapid bar wear. Refer to Saw Chain Tension Adjustment.

To help minimize bar wear, the following guide bar maintenance is recommended:

Bar Wear

Turn guide bar frequently at regular intervals (for example, after 5 hours of use), to ensure even wear on top and bottom of bar.

Bar Grooves

Bar grooves (or rails which support and carry the chain) should be cleaned if the saw has been heavily used or if the saw chain appears dirty. Rails should always be cleaned every time the saw chain is removed.

To clean guide bar rails:

1.Remove sprocket cover, bar and chain. Refer to Saw Chain Replacement / Installation.

2.Using a screwdriver, putty knife, wire brush or other similar instrument, clear residue from the rails on the guide bar (Fig. 14).

This will keep the oil passages open to provide proper lubrication to the bar and chain.

3.Reinstall the bar, chain and bar bolt retaining nuts. Refer to Saw Chain Replacement / Installation.

Fig. 14

Oil Passages

Oil passages at bar pad should be cleaned to insure proper lubrication of the bar and chain during operation. This can be done using a soft wire small enough to insert into the oil discharge hole.

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MTD PS720r manual Oiling the Chain, Guide BAR Maintenance, Bar Wear, Bar Grooves, Oil Passages

PS720r specifications

The MTD PS720R is a robust and versatile piece of outdoor power equipment designed for both professional landscapers and dedicated homeowners. This model excels in various gardening tasks, including pruning, trimming, and clearing tasks. It combines power and efficiency to deliver exceptional performance in yard maintenance.

One of the standout features of the PS720R is its powerful 25cc two-stroke engine. This engine is designed to provide reliable performance while maintaining a lightweight form factor, making it easy to handle during long hours of use. The power-to-weight ratio is optimized for effective cutting without causing excessive fatigue to the user.

The ergonomics of the MTD PS720R are also noteworthy. It features a padded double-handle design that not only enhances user comfort but also improves control during operation. This design minimizes vibrations, allowing for extended use without discomfort. The inclusion of a harness further redistributes weight, ensuring stability and reducing strain.

Another critical aspect of the PS720R is its advanced cutting technology. The trimmer head is equipped with a dual-line system that allows for efficient cutting of grass and weeds, significantly minimizing trimming time. The cutting swath is generous, enabling users to cover more ground in less time, making it ideal for larger yards or professional landscaping jobs.

Maintenance is straightforward with the MTD PS720R. The easy-access air filter and the fuel system allow for quick cleaning and refueling, ensuring that users can spend more time working and less time on upkeep. This emphasis on ease of use extends to the tool’s starter mechanism, which is designed for smooth and reliable starting, even after extended periods of storage.

The durability of the PS720R is another critical feature. Constructed with high-quality materials, this trimmer not only withstands the rigors of regular use but also resists wear from tough working conditions. This longevity makes it a wise investment for anyone looking to maintain their yard efficiently.

In summary, the MTD PS720R is a feature-rich, user-friendly, and durable outdoor trimmer. With its powerful engine, ergonomic design, advanced cutting technology, and easy maintenance, it represents an excellent choice for both residential and commercial applications. Whether tackling tough weeds or fine-tuning beautiful landscapes, the PS720R stands out as a reliable tool for achieving a well-manicured yard.