Ptopowerunit - Troy-Bilt 12090 Owner's Manual

Section 4: Operation
PTOPOWERUNIT
Your tiller is a self-contained PTO(Power
Take-Off) Power Unit that was shipped
with a tine attachment installed. The fine
attachment can be quickly removed and
replaced with other optional attachments,
The following instructions will familiarize
you with your PTOPower Unit, Please
read thesepagescarefully.
Removing And Replacing The Tine Attachment
Wheel
Speed,
Lever \
\
\
\
Wheels/Tines/PTO
Drive Lever
Engine
Throttle Lever
\
\
Forward
Interlock Levers
/
Depth
Regulator
Lever
Figure 4-21: PTO Power Unit and tine
attachment.
Figure 4-22: PTO Power Unit controls.
Before operating your PTO Power
Unit for the first time, make sure that
you have:
• Read all the safety instructions in
Section 1 of this Manual and in the
Manual supplied with any attach-
ment.
• Read the controls information and
operating procedures for the tiller
and engine described in Sections 3
and 4 of this Manual and in the
EngineOwner'sManual.
• Read and understandthe assembly
instructions, controls information,
and operating procedures for the
attachment as described in the
Attachment Owner'sManual supplied
with the attachment.
The following steps explain how to
remove and replace the tine attachment.
You will need a 3/4" wrench (minimum
12" long for leverage).
Removing Tine Attachment
1. Move the tiller to levelground.
2. Be sure the engineis stopped,the
electricstart key is removed,and thespark
plug wireis disconnectedand moved away
from sparkplug.
TO AVOID PERSONAL INJURY OR
DAMAGE TO EQUIPMENT:
• Stop the engine, remove the electric
start key, disconnect the spark plug
wire and let the engine and muffler
cool before removing or installing any
attachment.
• Do not place hands, tools, or any
object near or inside the PTO access
area while the engine is running.
• When removingor replacing the tine
attachment, be careful of the sharp
edges on the tiller hood. Wear thick
glovesfor handprotection.
• When the fine attachment is
removed, always prop it up with a
block to prevent the attachment from
falling forward.
3. Place a sturdy support under the
engine to prevent the engine from tipping
forward when the fine attachment is
removed (Figure 4-23).
4. Placethe WheelslTineslPTO Drive Lever
into NEUTRAL (Figure4-22).
5. Place TineslPTOClutch Lever in
DISENGAGE (Figure 4-22).
Figure 4.23: Block up engine.
6. PlaceWheel Speed Lever into FREE
WHEEL(Figure 4-22).
7. Loosen the two swing-out bolts (Figure
4-24) that connect the power unit trans-
mission to the tine attachment and swing
out the bolts (Figure 4-25).
HINT: Loosening swing-out bolts can be
difficult. Use an extra-long wrench for
leverage.
8. Tip the PTOpower unit forward about
one inch with one hand while pulling the
tine attachment back (Figure 4-26). The
guide pin on the power unit will slide out
of the guide hole in the fine attachment
(Figure 4-27).
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