![background image](http://html1.mh-extra.com/html/troy-bilt/182826-tb4000/182826-tb4000_owners-operators-manual_1173462011.webp)
11
Assembly (continued)
Fig. 3-8
Remove the Cutting Attachment
The gear housing gets hot with use and can
result in injury to the operator. When the unit is
turned off it remains hot for a short time. Do not
touch the gear housing until it has cooled.
1. Align the shaft bushing hole with the locking rod
slot and insert the locking rod into the shaft bush-
ing hole (Fig. 3-8).
2. Hold the locking rod in place by grasping it next to
the boom of the unit (Fig. 3-9).
3. While holding the locking rod, remove the cutting
attachment by turning it
clockwise
off of the out-
put shaft (Fig. 3-10). Store the cutting attachment
for future use.
NOTE: The blade retainer under the cutting attach-
ment will be used when installing the cutting blade.
Install the Cutting Blade
To avoid serious personal injury, always wear
gloves while handling or installing the blade.
4. Place the cutting blade on the output shaft bushing
(Fig. 3-11).
5. Make sure that the cutting blade is centered on the
pilot step and sitting flat against the output shaft
bushing (Fig. 3-12).
If the cutting blade is off-center, the unit will
vibrate, and the blade may fly off, which can
cause serious personal injury.
Cutting Attachment
Locking
Rod Slot
Locking Rod
Shaft Bushing Hole
Locking Rod Slot
Output Shaft
Bushing
Locking Rod
Output Shaft
Shield
Mount
Locking Rod
Cutting
Blade
Blade Retainer
Nut
Output Shaft
Bushing
Pilot Hole
Pilot Step
Fig. 3-9
Fig. 3-10
Fig. 3-11
Fig. 3-12