Ryobi ZR51950A Manuel d'utilisateur télécharger pdf (Page 15)

Converting From Trimmer To Brushcutter

Model No. ZR51990A

To convert from the trimmer to the brushcutter, remove the

trimmer head assembly, remove the grass deector, attach

the brushcutter guard, and install the blade.

To Remove the Trimmer Head Assembly and Grass

Deflector

See Figures 10 and 11.

Follow these steps to remove the trimmer head assembly

and grass deector.

1. Align the slot in the anged washer with the slot in the

gear head.

2. Insert the head locking tool through the anged washer

and gear head.

3. Remove the drive shaft and trimmer head assembly by

turning the drive shaft clockwise (left-handed threads).

4. Remove the anged washer and retain it for the blade

installation.

5. Remove the screw securing the grass deector.

6. Remove the grass deector.

Note: Store the trimmer head assembly parts together

for future use.

To Attach the Brushcutter Guard

See Figure 12.

Note: To protect the operator, always be sure to attach the

brushcutter guard.

Follow these steps to attach the brushcutter guard.

1. Place the guard onto the gear head as shown.

2. Insert the three hex head screws from the bottom

through the guard into the gear head.

3. Tighten the screws securely and torque to 40-50 in.lb.

To Install the Blade

See Figure 13.

Follow these steps to install the blade.

1. Place anged washer over the gear shaft with the

hollow side toward the brushcutter guard.

2. Center the blade on the anged washer, making sure the

blade ts at and the raised hub goes through the hole

in the blade.

3. Install the cupped washer with the raised center away

from the blade.

4. Place the blade nut onto the gear shaft.

5. Insert the head locking tool through the anged washer

and gear head.

6. Install the blade nut by turning it counterclockwise

(left-handed threads).

7. Tighten the blade nut and torque to 120 in.lb. minimum

(nger tight plus 1/2 turn).

Figure 10

Figure 11

Figure 12

Figure 13

Assembly

Head

Locking

Tool

Gear

Head

Trimmer

Head

Assembly

Drive

Shaft

Flanged

Washer

Straight Shaft

Grass Deflector

Slot

Gear Head

Brushcutter

Guard

Hex Head

Screw

Brushcutter

Guard

Flanged

Washer

Blade

Blade Nut

Cupped

Washer

Gear Shaft

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 27 28

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Ryobi ZR51950A Manuel d'utilisateur Page 15

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