Troy-Bilt 644H Enginecontrols, DepthRegulatorLever, HandlebarHeightAdjustment, Anti-ReverseStake

Section3: FeaturesandControls

DepthRegulatorLever

This lever (G, Figure 3-5) controls the tilling depth of the tines. Pull the lever straight backand slide it up or down to engagethe notched height settings.

The highest notch (lever all the way down) raisesthe tines approximately 1-

1/2" off the ground. This "travel" setting allows the tiller to be movedwithout the

tines digging into the ground. Also use this setting when starting the engine.

Movethe lever upward to increasethe tilling depth. The lowest notch allows a tilling depth of approximately 6"-8", dependingon soil conditions.

For best results, begin tilling at the deepestdepth possiblewithout causing the tiller to bog down. Increasethe tilling depth from one pass over the soil to the next.

HandlebarHeightAdjustment

The handlebarheight is adjustableto three different settings (see Figure 3-6). As a general rule, adjust the handlebars

so they areat waist level when the tines are3"-4" into the soil.

To Adjustthe Handlebars:

1.Stop the engine, disconnect the spark plug wire from the spark plug and allow the engineto cool.

2.Removethe screws, Iockwashersand

nuts, reposition the handlebars,and reinstall the hardware.

Anti-ReverseStake

This stake is locatedat the rear of the transmission, under the tine hood (see H, Figure 3-7). Its purpose is to automati- cally help preventthe counter-rotating tines from letting the tiller backup in the direction of the operator if the tiller wheels had beeninadvertently left in the FREEWHEELposition. In this situation, the Anti-ReverseStakewill beforced down into the ground, lifting the tines upward out of the soil and helping prevent backward motion of the tiller.

TheAnti-ReverseStakerequires no adjust- ment, but should be inspected before each tiller use to verify that it swivels freely. Removeany clogged materials (dirt, roots, rocks, etc.) that preventthe Anti-ReverseStakefrom swinging freely.

Travel

Position

Figure3-6."Handlebarheightadjustment.

Figure3-5."Depthregulatorlever,

WARNING

•Place the Depth Regulator Lever in the "travel" position before starting the

engine. This position prevents the tines from touching the ground until you are ready to begin tilling.

Failure to follow this warning could result in personal injury or property damage.

H

Figure3-7:Anti-ReverseStake.

ENGINECONTROLS

Referto the engine manufacturer'sEngine Owner'sManual (included in the tiller lit- erature package)to identify the controls on your engine.

IMPORTANT:The control for stopping the engine is located on the engine.

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