MTD 21A-450 Series Operating Your Tiller, Clutch Control Bail, Depth Stake, Handle Adjustment

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CLUTCH CONTROL BAIL

CLUTCH CONTROL BAIL

The clutch control bail is located below the handle. See Figure 7. Lifting the clutch control bail against the handle engages the wheel and tine drive mechanisms.

NOTE: Never engage clutch lever while shifting.

DEPTH STAKE

The depth bar controls the tilling depth. Refer to SECTION 5: OPERATING YOUR TILLER on this page.

HANDLE ADJUSTMENT

The handle may be adjusted to be raised or lowered in line with the tiller. To adjust the handle position loosen the handle height adjustment crank a few turns. Pivot handle up or down to desired position. Tighten crank.

SECTION 5: OPERATING YOUR TILLER

NOTE: Engine is shipped without oil.

WARNING: Use the reverse tine drive when tilling virgin ground, sod or hard soil. Use the forward tine drive when cultivating or tilling soft ground.

BEFORE STARTING

Service engine with oil as instructed in the separate engine manual packed with your unit.

Fill fuel tank with clean, fresh, lead-free, low-lead or regular grade leaded gasoline.

NOTE: After starting engine and prior to using the tiller, be certain to check the clutch adjustment as described in “Checking the Clutch Adjustment” section of Assembly Instructions.

TO STOP ENGINE

Move throttle control to the STOP position.

Disconnect spark plug wire and ground to prevent accidentally starting while equipment is unattended.

NOTE: After the first ten hours of operation, recheck the clutch adjustment. Refer to “Checking the Clutch Adjustment” section of the Assembly Instructions.

TO START ENGINE

WARNING: Be sure no one is standing in front of the tiller while the engine is running or being started.

Place the throttle control lever in the FAST (rabbit) position.

Move choke lever to CHOKE position.

NOTE: A warm engine may not require choking.

Stand at side of tiller. Grasp the starter handle with your right hand and pull out slowly, until it pulls slightly harder. Place your left hand on the lower portion of the upper handle.

Pull starter handle rapidly. Do not allow handle to snap back. Allow it to rewind slowly while keeping a firm hold on the starter handle.

Repeat steps 3 and 4 until engine starts.

As engine warms up and begins to operate evenly, move choke lever gradually to RUN position. If engine falters, return to choke position, then slowly move to RUN position.

Refer to engine manual for additional engine information.

WARNING: When operating the tiller for the first time, use the depth stake setting that gives 1 inch of tilling depth (second hole from the top). See Figure 8.

Tilling depth is controlled by the depth stake which can be adjusted to five different settings. See Figure 8. Adjust the side shields as shown in Figure 9, as you adjust the depth stake. Be certain spark plug wire is disconnected and grounded against the engine.

When using the tiller for the first time, use the second adjustment hole from the top (1" of tilling depth). See Figure 8.

When breaking up sod and for shallow cultivation, use the setting which gives 1" of tilling depth (second hole from the top). Place the side shields in their lowest position. For further depth, raise the depth stake and side shields and make one or two more passes over the area.

When tilling loose soil, depth stake may be raised to its highest position (use bottom adjustment hole) to give the deepest tilling depth. Raise the side shields to their highest position.

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Contents Operator’s Manual Rear Tine Tiller 21A-450 SeriesMTD PRODUCTS INC P.O. BOX 368022 CLEVELAND, OHIO FINDING MODEL NUMBER TABLE OF CONTENTSCALLING CUSTOMER SUPPORT MTD PRODUCTS INCGENERAL OPERATION SECTION 1 IMPORTANT SAFE OPERATION PRACTICESSERVICE CHILDRENFigure 1 Safety labels found on your unit SECTION 2 LOOSE PARTS NOTE Cable tie not shownHandle Assembly Depth ControlStake RodAssembly ATTACHING THE HANDLE ASSEMBLY ATTACHING DEPTH STAKE ASSEMBLYSECTION 3 ASSEMBLING YOUR TILLER TO REMOVE UNIT FROM CARTONATTACHING THE CLUTCH CABLE CHECKING THE CLUTCH ADJUSTMENTATTACHING THE CONTROL ROD NOTE Do not put fingers under the belt coverSECTION 4 KNOW YOUR TILLER TIRE PRESSURECHOKE LEVER GEAR SELECTION HANDLESECTION 5 OPERATING YOUR TILLER HANDLE ADJUSTMENTCLUTCH CONTROL BAIL DEPTH STAKESECTION 6 MAKING ADJUSTMENTS BELT TENSION ADJUSTMENTTO OPERATE THE TILLER CARBURETOR ADJUSTMENT SECTION 7 SERVICESECTION 8 MAINTAINING YOUR TILLER ENGINECLEANING THE TINE AREA BELT REPLACEMENTTIRES SECTION 9 OFF-SEASON STORAGE SECTION 10 TROUBLE SHOOTING GUIDESECTION 11 PARTS LIST FOR MODEL 450 SERIES MODEL 450 SERIES 2630 4449Labels MODEL 450 SERIES DESCRIPTION MANUFACTURER’S LIMITED WARRANTY