BAR and Chain Combinations, Troubleshooting

MAINTENANCE

STORING THE CHAINSAW (1 MONTH OR LONGER)

1.Drain all fuel from tank into a container approved for petrol.

2.Run the engine until it stops. This will remove all fuel-oil mix that could become stale and leave varnish and gum in the fuel system.

3.Drain all bar and chain oil from tank into a container approved for oil.

4.Clean all foreign material from the saw.

5.Store it in a well-ventilated place that is inaccessible to children.

NOTE: Keep away from corrosive agents such as garden chemicals and de-icing salts.

Abide by all government and local regulations for the safe storage and handling of petrol. Excess fuel should be used in other 2-cycle engine powered equipment.

BAR AND CHAIN COMBINATIONS

RECOMMENDED BAR AND CHAIN COMBINATIONS FOR .375 LOW PROFILE .050 GAUGE

Length of Bar	Guide Bar Part Number	Chain Part Number
356 mm (14 in.)	PS06331	H1N7252A4
406 mm (16 in.)	PS06338	PS06285

TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

SOLUTION

Engine will not start.	1.	No spark.
(Make sure ignition switch
is in start position “I”.)
	2.	Flooded engine.

1.Check spark. Remove air filter cover. Remove sparking plug from cylinder. Reattach the sparking plug wire and lay sparking plug on top of cylinder with the metal part of plug touching the cylinder. Pull the starter rope and watch for spark at sparking plug tip. If there is no spark, repeat test with a new sparking plug.

2.With the ignition switch off, remove sparking plug. Move choke lever to run position (pushed in completely) and pull starter cord 15 to 20 times. This will clear excess fuel from engine. Clean and reinstall sparking plug. Set ignition switch to run (I) position. Push and fully release primer bulb 7 times. Pull starter three times with choke lever at run. If engine does not start, move choke lever to choke and repeat normal starting procedure. If engine still fails to start, repeat procedure with a new sparking plug.

Engine starts but will not	Carburettor requires “L” (Low jet)	Contact a Homelite service dealer for carburettor adjustment.
accelerate properly.	adjustment.

Engine starts but will not	Carburettor requires “H” (High jet)	Contact a Homelite service dealer for carburettor adjustment.
run properly at high	adjustment.
speed.

Engine does not reach full speed and/or emits excessive smoke.

1.Check oil fuel mixture.

2.Air filter dirty.

3.Spark arrester screen dirty.

4.Carburettor requires “H” (High jet) adjustment.

1.Use fresh fuel and the correct 2-cycle oil mix ratio.

2.Clean air filter. Refer to “Maintenance – Cleaning the Air Filter” earlier in this manual.

3.Clean spark arrester screen. Refer to “Maintenance – Cleaning the Spark Arresting Silencer” earlier in this manual.

4.Contact a Homelite service dealer for carburettor adjustment.

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UT74121D specifications

The Homelite UT74121D is a versatile and efficient string trimmer designed for homeowners and gardening enthusiasts who seek an effective solution for lawn maintenance. This machine excels at tackling overgrown grass, weeds, and edging tasks, offering performance and convenience.

One of the standout features of the Homelite UT74121D is its powerful 14-amp electric motor. This robust motor delivers consistent performance and ample cutting power, making it suitable for various landscaping tasks. Unlike gas-powered trimmers, the electric motor ensures quieter operation with zero emissions, making it an environmentally friendly choice.

The trimmer is equipped with a 17-inch cutting width, providing an expansive area for trimming, thus reducing the time needed to complete yard work. Featuring a dual-line feed system, the UT74121D allows for efficient cutting. The automatic line advance ensures that users can focus on their trimming without frequent interruptions to replace the line.

The lightweight design of the Homelite UT74121D contributes to its user-friendliness. Weighing in at just over 10 lbs, it is easy to maneuver, making it suitable for both large yards and tight spaces. The balanced design helps reduce user fatigue, allowing for longer periods of use without strain.

Another key characteristic of the UT74121D is the adjustable telescopic shaft. It can be extended or shortened to accommodate users of different heights, enhancing comfort and control during operation. This customizable feature enables better ergonomics and reduces the risk of back strain.

The Homelite UT74121D also incorporates a convenient pivoting head that allows for versatile trimming positions. This feature is particularly useful for edging alongside sidewalks and driveways, as well as for accessing hard-to-reach areas, making it a multi-functional tool for comprehensive yard work.

Moreover, the trimmer comes with a safety guard to protect the user from flying debris, promoting a safer mowing experience. The straightforward assembly and operation further appeal to users, with easy-to-follow instructions that make setup a breeze.

In conclusion, the Homelite UT74121D string trimmer is a practical and efficient tool for homeowners looking to maintain their lawns effectively. With its powerful motor, expansive cutting width, lightweight design, adjustable shaft, and safety features, this trimmer checks all the boxes for a reliable gardening companion. Whether you’re edging, trimming, or maintaining your yard, the UT74121D is designed to meet your landscaping needs with ease and efficiency.