SECTION 6: MAKING ADJUSTMENTS

WARNING: Do not at any time make any adjustment to your lawn mower without first stopping the engine and disconnecting the spark plug wire.

Handle Height

Your mower is shipped with the handle in the higher height position.To lower the handle height for your convenience, proceed as follows.

Lower

 

Handle

Notch

 

Figure 9

Remove the starter rope from the rope guide.

Remove the upper handle by removing the hand knobs and carriage bolts. Lay the upper handle out of the way, being careful not to bend or kink cables.

Remove the hairpin clips from the weld pins on the handle brackets. Press outward on the legs of the lower handle, and remove it from the mower.

Turn the lower handle around so the notches on the bottom of the lower handle are facing forward as shown in Figure 9. Reassemble, placing the bottom holes in the handle over the weld pins in the handle mounting bracket.

Reassemble the upper handle.

Place the hairpin clips in the inner holes in the weld pins. Reattach the starter rope.

Carburetor

WARNING: If any adjustments are made to the engine while the engine is running (e.g. carburetor), keep clear of all moving parts and heated surfaces (e.g. muffler).

Minor carburetor adjustments may be required to compensate for differences in fuel, temperature, altitude and load. To adjust carburetor, refer to the engine manual.

NOTE: A dirty air cleaner will cause an engine to run rough. Make sure air cleaner is clean and attached to the carburetor before adjusting carburetor.

Cutting Height

An adjusting plate and thumb lever at each wheel position provides cutting height adjustment. Each adjusting plate has nine height positions. Height of cut will be changed when the thumb lever is moved from one hole to another.

Simply depress the lever towards wheel and move wheel and lever assembly to desired position. All wheels must be placed in the same relative position. See Figure 10.

Height

Adjustment

Lever

Figure 10

10

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Image 10
MTD 109 manual Handle Height, Carburetor, Cutting Height