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10
ASSEMBLY INSTRUCTIONS
Fig. 15
Fig. 12
Pilot Step
CC4090 ONLY: REMOVE CUTTING BLADE
& INSTALL THE CUTTING ATTACHMENT
Remove the Cutting Blade
1. Align the shaft bushing hole with the locking rod slot
and insert the locking rod into the bushing hole (Fig. 8).
2. Hold the locking rod in place by grasping it next to
the boom of the unit (Fig. 14).
3. While holding the locking rod, loosen the nut on the
blade by turning it clockwise with a 5/8 inch closed-
end or socket wrench (Fig. 14).
Fig. 13
9. Remove the locking rod from the locking rod slot.
1/4-1/2 turn
Counterclockwise
6. Align the shaft bushing hole with the locking rod
slot and insert the locking rod into the bushing hole
(Fig. 8).
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 an 5/8 inch socket tighten
to: 325 - 335 in•lb, 27 - 28 ft.•lb, 37 - 38 N•m.
•Without a torque wrench, use a 5/8 inch closed-end or
socket wrench, turning the nut until the blade retainer
is snug against 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. 13).
Cutting Attachment
Locking Rod
Clockwise
6. Remove the locking rod.
7. Install the cutting attachment shield. Refer to Remove
and Install the Cutting Attachment Shield.
Blade Retainer
Output Shaft
Bushing
Fig. 14
5. Make sure that the cutting blade is centered on the
pilot step and sitting flat against the output shaft
bushing (Fig. 12).
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. 8).
Place the blade retainer on the output shaft with the flat
surface against the output shaft bushing (Fig. 15). Screw
the cutting attachment counterclockwise onto the output
shaft. Tighten securely.
NOTE: The blade retainer must be installed on the output
shaft in the position shown for the cutting
attachment to work correctly.
If the cutting blade
is off-center, the
unit will vibrate and the blade may fly off,
causing possible serious personal injury.
WARNING:
To avoid serious
personal injury,
always wear gloves while handling or
installing the blade.
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.
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:
To avoid serious
personal injury, the
cutting attachment shield MUST be in place at
all times while operating the unit as a trimmer.
WARNING: