Shindaiwa 78890-40000 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 - 12 mm dia. recess &
10 mm x 1.25 Threaded hole.)
1 - Stihl Line Head Arbor (2 Notches - 15 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 fit-up chart 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:
1. Lock gearcase power output shaft according to trimmer manufacturer's instructions.
2. Using color code, select threaded stud listed on fit-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.
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:
1. Hold drum (A) firmly, and turn knob (B) clockwise. Remove knob and spring (C).
2. Pull spool (D) from drum (A).
3. Remove old mounting arbor (E).
99922201519
10/12
78890-40000
nylon line head instructions
A
A
D
C
B
E