SERVICE AND ADJUSTMENTS

TINE OPERATION CHECK (See Fig. 19)

WARNING: Disconnect spark plug wire from spark plug to prevent starting while checking tine operation.

For proper tine operation, forward tine control lever must be against control body and all slack removed from inner wire of control cable when control is in the “OFF” (up) position.

If lever and cable are loose, loosen cable clip at lower end of cable. Pull up on cable to remove slack, without extending spring on end of cable, and retighten cable clip.

FINAL CHECK “OFF” POSITION

With tine control “OFF” (up), push down on handle to raise tines off the ground.

Slowly pull recoil starter handle while observing tines. Tines should not rotate.

If tines rotate, inner wire of control cable is too tight which is extending lower spring and engaging tines. Loosen cable clip and push down on cable only enough to relieve spring tension. Tighten cable clip.

Recheck in “OFF” position and adjust if necessary.

FINAL CHECK “ON” POSITION

With tine control “ON” (held down to handle) push down on handle to raise tines off the ground.

Slowly pull recoil starter handle while observing tines. Tines should rotate forward.

If tines do not rotate, inner wire of control cable is too loose. Loosen cable clip and pull cable up to remove slack and retighten clip.

Recheck in “ON” position and adjust if necessary. NOTE: If “ON” position check required adjustment, recheck “OFF” position adjustment to insure tines do not rotate when control is “OFF” (up).

 

FORWARD TINE

 

CONTROL IN “OFF”

 

(UP) POSITION

 

TINE CONTROL

BODY

“ON” POSITION

 

CABLE

TINE

CLIP

 

CONTROL

 

CABLE

FIG. 19

 

TO REMOVE BELT GUARD (See Fig. 20)

Remove two (2) cap nuts and washers from side of belt guard.

Loosen (do not remove) tine shield nut on underside of tine shield.

Pull belt guard out and away from unit.

Replace belt guard by reversing above procedure. Be sure slot in bottom of belt guard is under head of tine shield bolt and all nuts are tightened securely.

CAP NUTS

AND WASHERS

BELT

GUARD

TINE

SHIELD

NUT

FIG. 20

TO REPLACE V-BELTS (See Figs. 21 and 22)

Replace V-belts if they have stretched considerably or if they show cracks or frayed edges. There are two (2) V-belts - forward (inside) and reverse (outside).

Belt guard must be removed to service belts. See “TO REMOVE BELT GUARD” in this section of manual.

NOTE: Observe carefully routing of both belts and location of all belt guides before removing belts.

BELT REMOVAL

Remove reverse idler pulley from idler arm.

Remove reverse (outside) V-belt.

Remove forward (inside)V-belt from transmission pulley first and then from engine pulley.

BELT REPLACEMENT

Install new forward (inside) V-belt to engine pulley first then to transmission pulley. Be sure belt is positioned on inside groove of both pulleys, inside all belt guides and rests on idler pulley.

Before installing reverse (outside)V-belt, turn belt“inside out”. Twist so wide, flat surface of belt is to inside.

WrapV-belt around reverse idler pulley and reassemble idler to idler arm. Tighten securely. Be sure belt is between reverse idler pulley and idler arm pin.

Install belt to outside groove of transmission pulley. Be sure belt is inside all belt guides and rests on outside groove of engine pulley.

CHECK TINE OPERATION

See “TINE OPERATION CHECK” in this section of manual.

REPLACE BELT GUARD

14

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Image 14
Poulan HDF550L owner manual Tine Operation Check See Fig, To Remove Belt Guard See Fig, To Replace V-BELTS See Figs

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.