Cub Cadet BC280 Manual Del Operador página 15

REPLACING THE BLADE
WARNING:
To avoid serious personal injury, always
wear gloves when handling the blade.
WARNING:
Do not sharpen the blade. Sharpening the
blade can cause the blade tip to break off while in use.
This can result in severe personal injury.
Removing the Blade
1. Align the shaft bushing hole with the locking rod slot (Fig. 18).
Insert the locking rod into the locking rod slot and shaft bushing
hole (Fig. 18).
2. While holding the locking rod in place, loosen the nut by turning it
clockwise with a 13 mm closed-end or socket wrench (Fig. 19).
3. Remove the locking rod (Fig. 20).
4. Remove the nut, blade retainer and blade (Fig. 20).
Installing the Blade
1. Put the blade on the output shaft bushing (Fig. 20). Make sure
the blade is centered on the pilot step (Fig. 21). The blade
should sit flat against the output shaft bushing.
WARNING:
If the blade is off-center, the unit will vibrate
and the blade may fly off, possibly causing serious
personal injury.
2. Align the shaft bushing hole with the locking rod slot (Fig. 18).
Insert the locking rod into the locking rod slot and shaft bushing
hole (Fig. 18).
3. While holding the locking rod in place, put the blade retainer and
nut on the output shaft (Fig. 21).
4. While holding the locking rod in place, tighten the nut by turning
it counterclockwise:
• If you are using a torque wrench and an 13 mm socket, tighten
the nut 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. Turn the nut until the blade retainer is snug against
the shaft bushing. Make sure the blade is installed correctly,
then rotate the nut an additional 1/4 to 1/2 turn
counterclockwise (Fig. 22).
5. Remove the locking rod.
WARNING:
To avoid serious personal injury or damage
to the unit, do not start or operate the unit with the locking
rod inserted into the locking rod slot.
Shaft Bushing Hole
Locking Rod Slot
Locking Rod
Shaft Housing
Blade Retainer
Output Shaft
Bushing
Blade Retainer
Pilot Step
15
Output Shaft
Output Shaft
Bushing
Locking Rod
Fig. 18
Nut
Clockwise
Fig. 19
Nut
Blade
Locking Rod
Fig. 20
Nut
Blade
Fig. 21