Husqvarna 80792 manual Pro-Matic and Bump ‘N’ Cut Trimmer Heads

INSTALLATION INSTRUCTIONS

Pro-Matic and Bump ‘N’ Cut Trimmer Heads

Pro-Matic

Bump ‘N’ Cut

NOTE: Operating with trimmer line of uneven length will cause excessive vibration. Always make sure the line is wound evenly and trimmed to equal lengths from the eyelets.

UN32-7L

Fits LT18, T18, T20, C20, LT20, T230, C230, 22T

UN32-8L

Fits F20, T25, C25, T27, C27, BP35, TC250, T270, C270, T260, C260

UN32-10L

Fits C35, C350, RC45, B45, B450

UN34-7L

Fits LT18, T18, LT20, T20, C20, T230, C230, 22T

UN34-8R

Fits F18, F21, F230, 22F

Line Chart

UN32-7L

UN32-8L

UN32-10L Shipped with

18 feet of .080 line.

Maximum fill– 40 feet of .080 28 feet of .095 26 feet of .105

UN34-8R

Shipped with

21 feet of .080 line.

Maximum fill– 33 feet of .080 16 feet of .095 14 feet of .105

1 2 3

Depress the tab on the lower housing and twist the cover counterclockwise (clockwise on UN34-8R) to align arrows. Remove the cover and button.

Remove the spool and spring (the spring is located under the spool).

Clean the spool, housing and eyelets. Inspect for wear and damage. Replace damaged components.

4 5 6

Inspect the arbor bolt and replace it if damaged. Re-attach the eyelets if they were removed or replaced.

Never operate a trimmer head without eyelets!

Replace the line by threading it through the eyelet in the spool until line lengths are equal. Refer to the Line Chart (above) for the proper amount of line.

With line saver slots facing you, wind the line clockwise in the spool using a finger to keep the two lines separate (UN34-8R: Wind the line counterclockwise).

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