21560065

nylon line head instructions

contents
1 - High Capacity Manual Trimmer Head
w/Standard 10 mm x 1.25 Mounting Arbor
1 - 7 mm x 1.00 X 10 mm x 1.25 Mounting Stud (Bronze)
1 - 8 mm x 1.25 X 10 mm x 1.25 Mounting Stud (Silver)
1 - 10 mm x 1.25 X 10 mm x 1.25 Mounting Stud (Black)
1 - Husqvarna Line Head Arbor (Smooth - 15 mm dia.
recess & 10 mm x 1.25 Threaded hole.)
1 - Stihl Line Head Arbor (2 Notches - 12 mm dia. recess
&10 mm x 1.0 Threaded hole.)
installation
caution
Wear Gloves or personal injury may result:
• Cutoff knife is sharp.
• Gearcase and surrounding area may be hot.
1. Remove existing cutting attachment from unit
following manufacturer’s instructions.
iMPoRtant:
Remove old trimmer head adapters from power
output shaft before installing new line head.
DO NOT remove upper adapter plate from gearcase.
2. Seet-upchart(page7)toidentifythreadedstudandmounting
arbor required for your brand and model trimmer.
3. Install new line head on unit:

Units requiring threaded stud to mount line head (7,8,10 mm):

1. Lock gearcase power output shaft according to trimmer manufacturer’s instructions.
2. Usingcolorcode,selectthreadedstudlistedont-upchartforyourbrandandmodel
trimmer.
3. Thread small end of threaded stud into gearcase output shaft by turning counterclockwise.
4. Thread line head onto threaded mounting stud, turning counterclockwise. Hand tighten.
5. Remove locking tool from gearcase.

Units that use line head with standard 10mm arbor (STD):

1. Lock gearcase power output shaft according to trimmer manufacturer’s instructions.
2. Thread line head onto power output shaft, turning counterclockwise. Hand tighten.
3. Remove locking tool from gearcase.

Units requiring new mounting arbor (S), (H):

1. Holddrum(A)rmly,andturnknob(B)clockwise.Removeknobandspring(C).
2. Pull spool (D) from drum (A).
3. Remove old mounting arbor (E).
4. Selectandinstallnewarbor(F)listedint-upchartforyourbrandandmodel
trimmer.
5. Install spool in drum as shown in line loading instructions.
6. Place spring (C) over mounting shaft, and secure spool with knob (B). Turn knob
counterclockwise to tighten.
7. Lock gear case power output shaft according to manufacturer’s instructions.
8. Thread line head onto power output shaft, turning counterclockwise. Hand tighten.
9. Remove locking tool from gear case.

99922201518

06/13