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Converting From Brushcutter To
Trimmer
Model No. 51990
To convert from the brushcutter to the trimmer, remove the
blade, remove the brushcutter guard, attach the grass defl ec-
tor, and install the trimmer head assembly.
To Remove the Blade and Brushcutter Guard
See Figure 7 and Figure 8.
Follow these steps to remove the blade and brushcutter
guard.
1. Align the slot in the fl anged washer with the slot in the
gear head.
2. Place the head locking tool through the slot in the
fl anged washer and gear head.
3. Remove the blade nut by turning it clockwise (left-
handed threads).
4. Remove the cupped washer and the blade.
WARNING:
Be careful when handling the blade. It is sharp.
Failure to heed this warning can result in serious
personal injury.
5. Remove the fl anged washer from the gear shaft and
retain it for the trimmer head assembly installation.
6. Remove the three screws securing the brushcutter
guard.
7. Remove the brushcutter guard.
Note: Store the brushcutter parts together for future
use.
To Attach the Grass Deflector
Refer to "To Attach the Straight Shaft Grass Defl ector"
earlier in this manual.
To Install the Trimmer Head Assembly
See Figure 9.
Follow these steps to install the trimmer head assembly.
1. Align the slot in the fl anged washer with the slot in the
gear head.
2. Insert the head locking tool through the fl anged washer
and gear head.
3. Install the drive shaft and trimmer head assembly onto
the gear shaft by turning the drive shaft counterclock-
wise (left-handed threads).
4. Tighten the drive shaft securely.
Assembly
Head
Locking
Tool
Gear Head
Slot
Brushcutter
Guard
Flanged
Washer
Gear
Head
Figure 7
Flanged
Washer
Blade
Slot
Cupped
Washer
Blade Nut
Figure 8
Trimmer
Drive
Head
Shaft
Assembly
Figure 9
15
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