SERVICE AND ADJUSTMENTS

FORWARD MOTION (INSIDE) V-BELT

ENGINE PULLEY

TRANSMISSION

BELT GUIDE

PULLEY

 

REVERSE

IDLER PULLEY

BELT GUIDE

FORWARD

 

IDLER PULLEY

 

 

REVERSE (OUTSIDE) V-BELT

REVERSE

IDLER

PULLEY

ENGINE PUL-

LEYFORWARD

IDLER PULLEY

FRONT VIEW REFERENCE

REVERSE

IDLER

IDLER PULLEY

ARM PIN

ENGINE

PULLEY

ENGINE

TO ADJUST CARBURETOR

The carburetor has been preset at the factory and adjustment should not be necessary. However, engine performance can be affected by differences in fuel, temperature, altitude or load. If the carburetor does need adjustment, contact your nearest authorized service center/department

IMPORTANT:NEVERTAMPERWITHTHEENGINEGOVERNOR, WHICH IS FACTORY SET FOR PROPER ENGINE SPEED. OVERSPEEDING THE ENGINE ABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS. IF YOU THINK THE ENGINE-GOVERNED HIGH SPEED NEEDS ADJUSTING, CONTACTYOUR NEAREST AUTHORIZED SERVICE CENTER/ DEPARTMENT, WHICH HAS THE PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS.

FIG. 21

REVERSEREVERSE (OUTSIDE)

REVERSEIDLER ARMV-BELTIDLER PULLEY

IDLER

ARM PINBELT GUARD BOLT

FORWARD MOTION (INSIDE) V-BELT

ENGINE PULLEY

TRANSMISSION

PULLEY

BELT

GUIDE

FORWARD IDLER

PULLEY

FIG. 22

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Poulan HDF550L owner manual Engine, To Adjust Carburetor

HDF550L specifications

The Poulan HDF550L is a versatile and powerful handheld string trimmer designed for homeowners and professional landscapers alike. Engineered for efficiency and usability, this tool combines advanced technology with user-friendly features, making yard maintenance a breeze.

One of the standout features of the HDF550L is its robust 50cc, 2-cycle engine. This powerful engine provides ample torque and speed, enabling users to tackle thick grass, weeds, and overgrown areas with ease. The engine's design prioritizes fuel efficiency and reduced emissions, adhering to environmental standards while allowing for extended use without frequent refueling.

The HDF550L is equipped with a dual-line bump feed head, which allows for quick line adjustments during operation. This feature eliminates the need for complex line replacement procedures, saving users valuable time. The trimmer's .095-inch line thickness ensures optimal performance, cutting through tough vegetation smoothly and effectively.

Another significant characteristic of the Poulan HDF550L is its lightweight construction, weighing in at just under 12 pounds. This design enhances maneuverability, allowing users to navigate around garden beds, trees, and other obstacles effortlessly. The adjustable straight shaft provides additional reach and comfort, making it suitable for both tall and short users.

To enhance user experience, the HDF550L incorporates an ergonomic handle with a soft grip. This reduces fatigue during prolonged use, ensuring that users can maintain their trimming tasks without discomfort. Moreover, the integrated anti-vibration technology minimizes vibrations transmitted to the operator's arms, making extended operation smoother and more enjoyable.

The Poulan HDF550L also features easy-start technology, which simplifies the ignition process. With just a few pulls, users can get the trimmer up and running, reducing frustration during those busy lawn care days. This technology is especially beneficial for novice users who may struggle with starting traditional 2-cycle engines.

In summary, the Poulan HDF550L is a powerful and efficient string trimmer, ideal for tackling a wide range of landscaping tasks. Its combination of a powerful engine, user-friendly features, and lightweight design makes it a top choice for anyone looking to maintain their yard in pristine condition. Whether you're battling overgrown weeds or maintaining perfectly trimmed borders, the HDF550L provides the reliability and performance needed to get the job done efficiently.