Fig. 7

ASSEMBLY INSTRUCTIONS

WARNING: The gear housing gets hot with use. It can result in injury to the operator. The housing remains hot for a short time even after the unit is turned off. Do not touch the gear housing until it has cooled.

Remove the Cutting Attachment

1.Align the shaft

bushing hole

Shaft Bushing

Output Shaft

with the locking

Hole

Output

rod slot and

 

insert the locking

Locking

Shaft

Bushing

rod into the shaft

Rod Slot

 

bushing hole

Locking

 

(Fig. 7).

 

Rod

 

 

 

2.Hold the locking

rod in place by grasping it next

to the boom of the unit (Fig. 8).

3. While holding the locking rod, remove the cutting attachment by turning it clockwise off of the output shaft (Fig. 9). Store the cutting attachment for future use.

NOTE: The blade retainer under the

Fig. 8

cutting attachment will be

used when installing the cutting blade.

 

Cutting

 

Attachment

 

 

Locking

 

Rod

Locking

 

Rod Slot

 

Fig. 9

 

WARNING: To avoid serious personal injury, always wear gloves while handling or installing the blade.

Install the Cutting Blade

4.Place the

cutting blade

Blade

Nut

on the output

Retainer

Cutting

 

shaft bushing

Pilot

Blade

(Fig. 10).

Hole

Shield

5. Make sure that

 

Output

Mount

the cutting

 

Shaft

 

blade is

 

Bushing

 

centered on the

 

pilot step and

Locking

 

sitting flat

Rod

 

against the

 

Fig. 10

output shaft

 

 

 

bushing (Fig. 10).

 

 

WARNING: If the cutting blade is off-center, the unit will vibrate and the blade may fly off, causing possible serious personal injury.

6.Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 7).

7.Put the blade retainer and nut on the output shaft. Make sure that the blade is installed correctly.

8.Tighten nut counterclockwise against the blade while holding the locking rod:

• If using a torque wrench and a

Pilot Step

13 mm socket tighten to: 325 -

 

335 in•lb, 27 - 28 ft.•lb, 37 - 38

 

N•m.

 

• Without a torque wrench, use a

 

13 mm closed-end or socket

 

wrench, turning the nut until the

 

blade retainer is snug against

Fig. 11

the shaft bushing. Make sure

 

that the blade is installed

 

correctly, then rotate the nut

 

an additional 1/4 to 1/2 turn

 

counterclockwise (Fig. 12).

 

9. Remove the locking rod

 

from the locking rod slot.

Fig. 12

WARNING: To avoid serious personal injury or damage to the unit, do not start or operate this unit with the locking rod in the locking rod slot.

WARNING: Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury. Replace the blade.

REMOVE THE CUTTING BLADE AND INSTALL THE CUTTING

ATTACHMENT

WARNING: To avoid serious personal injury, always wear gloves while handling or installing the blade.

Remove the Cutting Blade

 

1.

Align the shaft bushing hole

Clockwise

 

with the locking rod slot and

 

 

 

insert the locking rod into the

 

 

bushing hole (Fig. 7).

 

2.

Hold the locking rod in place

 

 

by grasping it next to the

 

 

boom of the unit (Fig. 13).

 

3.

While holding the locking

 

 

rod, loosen the nut on the

Fig. 13

 

blade by turning it clockwise

 

 

with a 13 mm closed-end or socket wrench (Fig. 13).

4.Remove the nut, blade retainer and blade. Store the nut and blade together for future use in a secure place. Store out of children’s reach.

Install the Cutting Attachment

5.Align the shaft bushing hole with the locking rod slot and insert the locking rod into the shaft bushing hole (Fig. 7).

Place the blade

Cutting Attachment

retainer on the

 

output shaft with the

Blade

flat surface against

Retainer

the output shaft

Output

bushing (Fig. 14).

Screw the cutting

Shaft

attachment

Bushing

counterclockwise

Locking

onto the output

Rod

shaft. Tighten

 

securely.

Fig. 14

NOTE: The blade retainer must be installed on the output shaft in the position shown for the cutting attachment to work correctly.

6.Remove the locking rod.

7.Install the cutting attachment shield. Refer to Remove and Install the Cutting Attachment Shield.

5