Ryobi ZR51950A - Manual (Page 14)

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Converting From Brushcutter To
Trimmer
Model No. ZR51990A
To convert from the brushcutter to the trimmer, remove the
blade, remove the brushcutter guard, attach the grass deflec-
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 flanged washer with the slot in the
gear head.
2. Place the head locking tool through the slot in the
flanged 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 flanged 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 Deflector”
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 flanged washer with the slot in the
gear head.
2. Insert the head locking tool through the flanged 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.
Figure 7
Figure 9
Assembly
Head
Locking
Tool
Figure 8
Slot
Gear Head
Brushcutter
Guard
Flanged
Washer
Blade
Blade Nut
Slot
Cupped
Washer
Gear
Head Trimmer
Head
Assembly
Drive
Shaft
Flanged
Washer