MTD Yard Machines Y2900EC Manual De Propietario Y Operador página 6

REMOVE THE CUTTING ATTACHMENT AND INSTALL THE
CUTTING BLADE
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.
NOTE: To make cutting blade removal and installation easier,
place the unit on the ground or on a work bench.
Remove the Cutting Attachment Shield
See Remove and Install the Cutting Attachment Shield.
Remove the Cutting Attachment
1. Align the shaft bushing hole with the locking rod slot and insert
the locking rod into the shaft bushing hole (Fig. 10).
Shaft Bushing Hole
Locking Rod Slot
Locking Rod
2. Hold the locking rod in
place by grasping it next
to the boom of the unit
(Fig. 11).
3. While holding the locking
rod, remove the cutting
attachment by turning it
clockwise off of the output
shaft (Fig. 12). Store the
cutting attachment for
future use.
NOTE: The blade retainer
under the cutting attach-
ment will be used when installing the cutting blade.
Cutting Attachment
Locking Rod
Slot
Locking Rod
Install the Cutting Blade
WARNING:
To avoid serious personal injury,
always wear gloves while handling or installing the
blade.
ASSEMBLY INSTRUCTIONS
Output
Shaft
Output Shaft
Bushing
Fig. 10
Fig. 11
Fig. 12
4. Place the cutting blade on the output shaft bushing (Fig. 13).
Blade Retainer
Pilot Hole
Output Shaft
Bushing
Locking Rod
5. Make sure that the cutting blade is centered on the pilot step
and sitting flat against the output shaft bushing (Fig. 14).
WARNING:
unit will vibrate and the blade may fly off, causing
possible serious personal injury.
Pilot Step
6. Align the shaft bushing hole with the locking rod slot and
insert the locking rod into the bushing hole (Fig. 10 ).
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 13 mm socket, tighten to:
37 - 38 N•m, 325 - 335 in•lb, 27 - 28 ft.•lb.
• Without a torque wrench, use a 13 mm 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. 15).
9. Remove the locking rod from the locking rod slot.
6
Nut
Fig. 13
If the cutting blade is off-center, the
Fig. 14
Cutting
Blade
Shield
Mount