Troy-Bilt 643B - Manuel (Page 6)

6
3. There are three height adjustment holes in the two
handlebar support brackets (E and F, Fig. 2-2).
Use a setting that will position the handlebars at
approximately waist level when the tines are 3”-4”
into the soil. Loosely attach the support brackets to
the outside of the handlebar assembly (I) using two
5/16”-18 x 1-1/2” screws (G), 5/16” split lock washers
(D) and 5/16”-18 hex nuts (G). NOTE: If a support
bracket will not move, loosen attaching screw (H)
and nut.
4. Tighten all handlebar mounting hardware securely.
STEP 3: MOVE TILLER OFF CRATE
To roll the tiller off the shipping platform, put the wheels
in freewheel, as follows:
1. Place a sturdy block under the transmission to raise
one wheel about 1” off the ground.
2. Remove the Klik Pin (J, Fig. 2-3) from the wheel hub
(K) and wheel shaft (L).
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3. Slide the wheel fully inward on the wheel shaft (N,
Fig. 2-3). Reinstall the Klik pin (J) through the wheel
shaft (L) only (not through the wheel hub). The wheel
should now spin freely (freewheel) on the wheel shaft.
Repeat with the other wheel.
4. Use the handlebar to roll the tiller to a flat area.
Fig. 2.2: Attach handlebar.
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Fig. 2.3: Wheel in FREEWHEEL position (wheel drive pin
through wheel shaft only).
2
Assembly
IMPORTANT: The
support brackets must
be assembled to the
outside of the handle-
bar assembly.
IMPORTANT: Before
starting the engine, the
wheels must be placed
in the WHEEL DRIVE
position (pins through
wheel hubs and wheel
shaft). This procedure
is described in Wheel
Drive Pins on page 10.