MTD BCR4 BCK - Manual (Page 10)

10
FIGURE 18
ASSEMBLY INSTRUCTIONS
WARNING: If the cutting blade is off-center,
the unit will vibrate, and the blade may fly
off, which can cause serious personal injury.
5. Put the blade retainer and nut on the output shaft.
Make sure that the blade is installed correctly.
6. Tighten nut counterclockwise against the blade
while holding the locking rod.
If using a torque wrench and a 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. See
Figure 18.
FIGURE 19
Clockwise
1/4-1/2 turn
Counterclockwise
7.Remove the locking rod from the locking rod slot.
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 with the locking rod
slot and insert the locking rod into the bushing
hole. See Figure 14.
2. Hold the locking rod in place by grasping it next to
the boom of the unit. See Figure 15.
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. See Figure 19.
4. Remove the nut, blade retainer and blade. Store
the nut and blade together for future use in a
secure place. Store out of reach of children.
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. See Figure 14. Place the blade
retainer on the output shaft with the flat surface
against the output shaft bushing as shown in
Figure 20. Screw the cutting attachment
counterclockwise onto the output shaft. Tighten
securely.
Cutting Attachment
Locking Rod
Blade Retainer
Output Shaft
Bushing
FIGURE 20
NOTE: The blade retainer must be installed on the
output shaft in the position shown for the
cutting attachment to work correctly.