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20" Self Starter 

Mulching Push Lawn 

Mower 

M

ODEL

 106D

Operator’s Manual

IMPORTANT: 

Read safety rules and instructions carefully before operating equipment.

PRINTED IN U.S.A.

Warning: 

This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brush-

covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if 
any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required 
by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark 
arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 
Cleveland, Ohio 44136-0019.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

FORM NO. 

769-00008A.fm

(3/2003)

Summary of Contents for 106D

Page 1: ... spark arrester meeting applicable local or state laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark arrester for the muffler is available through your near...

Page 2: ... below For future reference please copy the model number and the serial number of the equipment in the space below ENGINE INFORMATION The engine manufacturer is responsible for all engine related issues with regards to performance power rating specifications warranty and service Please refer to the engine manufacturer s Owner s Operator s Manual packed separately with your unit for more informatio...

Page 3: ... 75 feet from the machine while it is in operation Stop machine if anyone enters the area 6 Always wear safety glasses or safety goggles during operation and while performing an adjustment or repair to protect your eyes Thrown objects which ricochet can cause serious injury to the eyes 7 Wear sturdy rough soled work shoes and close fitting slacks and shirts Shirts and pants that cover the arms and...

Page 4: ...ould read and understand the operation instructions and safety rules in this manual and should be trained and supervised by a parent Service Safe Handling Of Gasoline 1 To avoid personal injury or property damage use extreme care in handling gasoline Gasoline is extremely flammable and the vapors are explosive Serious personal injury can occur when gasoline is spilled on yourself or your clothes w...

Page 5: ... to performing any maintenance or service to the engine and or mower Follow instructions both in manual and on the engine and or machine to de energize starter Your Responsibility Restrict the use of this power machine to persons who read understand and follow the warnings and instructions in this manual and on the machine TO START Prime Engine 1 Turn Key To Run Position 2 Push and Hold Starter Bu...

Page 6: ...ELY Do not mow on inclines with a slope in excess of 15 degrees a rise of approximately 2 1 2 feet every 10 feet A riding mower could overturn and cause serious injury If operating a walk behind mower on such a slope it is extremely difficult to maintain your footing and you could slip resulting in serious injury Operate RIDING mowers up and down slopes never across the face of slopes Operate WALK...

Page 7: ...ndle in the higher height position If you wish to lower the height of the handle refer to the instructions for handle height adjustment on page 11 Figure 1 Remove the hairpin clips from the outer holes in the weld pins on the handle mounting brackets Using a pair of pliers squeeze one leg of the lower handle against the handle mounting bracket Insert the hairpin clip into the inner hole on the wel...

Page 8: ...gure 6 The safety key is a safety device used to activate and deactivate the self starter system The self starter system will not work without the key in it s proper position See engine manual for further information pertaining to the safety key NOTE The safety key must be in the run position to start the mower for both systems either the self starter or recoil starter Mulching Plug The mulching p...

Page 9: ...e lawn mower on a level surface outdoors 2 Remove clear plastic packaging under fuel cap 3 Check oil level 4 Add fuel 5 Open shut off valve if equipped 1 4 turn 6 Push spark plug wire firmly on spark plug 7 Turn safety key 1 4 turn clockwise to RUN position 8 Firmly push primer bulb 3 times 9 While standing in the operating position depress the starter control button fully with the thumb of your r...

Page 10: ...y maintenance or repairs to the self starter NEVER assume starter is de energize even if key is in LOCK AND REMOVE position and or removed from engine BEFORE removing grass or other debris from under mower deck BEFORE changing oil air filter or spark plug BEFORE removing blade for servicing BEFORE performing any other service to engine or mower BEFORE transporting mower ALWAYS DE ENERGIZE SELF STA...

Page 11: ... mower Turn the lower handle around so the notches on the bottom of the lower handle are facing forward as shown in Figure 8 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 ...

Page 12: ...RNING When removing the cutting blade for sharpening or replacement protect hands by using heavy gloves or a rag to grasp the cutting blade To remove blade Remove the bolt and blade bell support which hold the blade and adapter to the engine crankshaft See Figure 11 Remove the blade and the adapter from the crankshaft WARNING Periodically inspect the blade adapter for cracks especially if you stri...

Page 13: ... blower housing area cleaned to permit proper air circulation which is essential to engine performance and life Make sure to remove all grass dirt and combustible debris from muffler area SECTION 8 OFF SEASON STORAGE The following steps should be taken to prepare lawn mower for storage WARNING Be sure to disconnect the spark plug wire and DE ENERGIZE starter before performing any repairs or mainte...

Page 14: ...ne fill tank with fresh gasoline 3 Clear vent 4 Drain fuel tank Refill with fresh fuel 5 Clean air cleaner 6 Adjust carburetor Engine overheats 1 Engine oil level low 2 Air flow restricted 3 Carburetor not adjusted properly 1 Fill crankcase with proper oil 2 Remove blower housing and clean 3 Adjust carburetor Occasional skip hesitates at high speed 1 Spark plug gap too close 1 Adjust gap to 030 Id...

Page 15: ...15 NOTES ...

Page 16: ...10 PARTS LIST MODEL 106D 8 9 11 12 8 15 18 19 20 21 22 23 24 25 26 27 28 29 30 32 33 34 33 36 37 38 39 40 27 21 26 19 22 23 24 25 41 42 43 44 20 35 46 45 38 6 1 57 55 56 53 52 13 47 46 49 10 7 54 48 51 50 31 16 17 ...

Page 17: ...er Hd TT Screw 35 710 0654A TT Sems Screw 36 731 1409 Chute Deflector 37 682 7002 Mulching Plug Assembly 38 712 0431 Hex Lock Nut 39 15261A Height Adjustment Plate 40 731 1933 Cover Front End 41 748 0376C Blade Adapter 753 0588 Blade Adapter Kit for service 42 742 0740 20 Mulching Blade 43 736 0524A Blade Bell Support 44 710 1044 Hex Bolt 45 747 0710 Hinge Pin 46 736 0451 Saddle Washer 47 710 0501...

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Page 19: ...19 ...

Page 20: ... such as lubricants filters blade sharpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d MTD LLC does not extend any warranty for products sold or exported outside of the United States its possessions and territories except those sold through MTD LLC s authorized channels of export distribution e Parts that...

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