MAINTENANCE AND REPAIR

CAUTION:

Do not at any time let brake fluids, gasoline, petroleum based products, penetrating oils, etc., come in contact with plastic parts. They contain chemicals that may damage, weaken, or destroy plastics.

CUTTING LINE REPLACEMENT

The cutting line may be replaced by either rewinding the existing spool or installing a convenient prewound spool.

REWINDING THE EXISTING SPOOL

See Figure 13.

•Remove the battery pack from the string trimmer.

•Press in the tabs on each side of the spool cap.

•Remove the spool cap and spool. Discard any remaining line on the spool.

NOTE: If the spring falls off the spool housing during this procedure, reinstall the spring before installing the spool and spool cap.

•Inspect the string head for damaged or worn parts and clean thoroughly.

•Using approximately 10 feet (3 m) of new cutting line, insert one end of the line into the slot on the spool. Ensure the end of the line is pushed all the way towards the inner side of slot.

NOTE: No more than 1/8 in. of the line is to protrude from the slot.

•Wind the line, in even and tight layers, onto the spool. Line should be wound in the direction of the arrow indicated on the spool.

•Unwind approximately 4 in. (102 mm) of the line from the spool. Hold the line and spool firmly to keep it from unwinding then place the spool cap onto the spool.

•Holding the spool cap and spool by the bump knob, place into the spool housing and insert cutting line into the opening in spool housing.

NOTE: Tabs on the spool cap should be aligned with the slots in the spool housing.

•While pressing in the tabs, push down the spool cap and spool to lock in place.

•Completely assembled string head should appear as shown. See Figure 14.

SPOOL

CAP

BUMP KNOB

TABS

W

E

R

SPOOL

R

 

I

E

E

L N

 

 

W IN D

 

 

SPRING

SPOOL HOUSING

SLOT SLOT

ON SPOOL

OPENING IN

SPOOLHOUSING

SPOOL

HOUSING

Fig. 13

WARNING:

Use only 0.065 in (1.65 mm) diameter genuine Homelite replacement line. Never use metal- reinforced line, wire, or rope, etc. These can break off and become a dangerous projectile. Do not use any other attachment on this unit.

Page 13

Page 12 Page 14
Page 13
Image 13
Homelite UT31810 manual Maintenance and Repair, Cutting Line Replacement, Rewinding the Existing Spool
Page 12 Page 14

UT31810 specifications

The Homelite UT31810 is a powerful, efficient, and user-friendly gas chain saw designed primarily for homeowners and light-duty professional use. With its robust 18-inch bar and chain, this model excels in cutting through trees, limbs, and thick branches, making it a practical tool for yard maintenance, firewood preparation, and storm cleanup.

At the core of the UT31810 is its reliable 42cc 2-cycle engine. This air-cooled engine combines power and performance, delivering a strong cutting capability while maintaining efficiency. The engine is easy to start thanks to the QuickStart technology, which reduces the effort required to pull the starter cord, making it manageable for users of all skill levels.

One of the standout features of the UT31810 is its automatic chain lubrication system. This ensures that the bar and chain are continuously supplied with oil during operation, keeping them well-lubricated for smoother cuts and prolonged life. The system is designed to minimize oil consumption while maximizing protection, which means users can focus on their tasks without worrying about constant maintenance.

Safety is also a priority in the design of the Homelite UT31810. It includes a chain brake feature that helps prevent accidental starting and provides an additional layer of safety by stopping the chain quickly in case of kickback. The integrated hand guard and low kickback chain further enhance user protection, ensuring a safer cutting experience.

The tool features an easy-to-use tensioning system for the chain, allowing adjustments without the need for additional tools. This feature enhances usability, making it quick and simple to maintain the optimal tension for efficient cutting.

Weighing in at approximately 11 lbs, the UT31810 strikes a good balance between power and portability. It is equipped with comfortable rubber grips that reduce vibration, allowing users to work longer without fatigue.

Overall, the Homelite UT31810 is an excellent choice for those who need a reliable, effective, and safe chain saw. With its combination of powerful engine performance, user-friendly features, and safety technologies, it stands out in its category, making outdoor projects easier and more efficient for both novice and experienced users.
Top Page Image Contents