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Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty

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

PRINTED IN U.S.A

READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION

IMPORTANT

OPERATOR’S MANUAL

20” Mulching Push Lawn Mower — Model 105

11/2005

FORM NO. 769-01447A

Summary of Contents for 105

Page 1: ...ed 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...

Page 2: ...afe Operation Practices 4 Setup and Adjustment 6 Operating Your Lawn Mower 8 Maintaining Your Lawn Mower 10 Trouble Shooting 12 Tecumseh 2 Pull Promise 13 Parts List Safety Labels 14 DEALER LOCATOR PHONE NUMBER 800 949 4483 MTD LLC P O BOX 361131 CLEVELAND OH 44136 www whiteoutdoor com Customer Support If you have difficulty assembling this product or have any questions regarding the controls oper...

Page 3: ...alk 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 BEHIND mowers across the face of slopes never up and down slopes Use this page as a guide to determine slopes where you may not operate safely Do not operate your lawn mower on such s...

Page 4: ...d shirts Shirts and pants that cover the arms and legs and steel toed shoes are recommended Never operate this machine in bare feet sandals slippery or light weight e g canvas shoes 8 Do not put hands or feet near rotating parts or under cutting deck Contact with blade can amputate hands and feet 9 A missing or damaged discharge cover can cause blade contact or thrown object injuries 10 Many injur...

Page 5: ...el while engine is hot or running Allow engine to cool at least two minutes before refueling 10 Never over fill fuel tank Fill tank to no more than inch below bottom of filler neck to provide for fuel expansion 11 Replace gasoline cap and tighten securely 12 If gasoline is spilled wipe it off the engine and equipment Move unit to another area Wait 5 minutes before starting engine 13 Never store th...

Page 6: ...ndle to the lower handle 2 Locate hairpin clip in one hole on the weld pin on each side of lower handle a Remove hairpin clip from this hole Using a pair of pliers insert hairpin clip into the other hole on the weld pin Repeat on other side See Step 2 3 Rope guide Setup as follows in Step 3 a Hold the blade control handle against the upper handle Position A b Slowly pull starter rope out of the en...

Page 7: ...oles provided on the lower handle Pull cable tie tight and trim excess See Step 4 illustration Wheel Height Adjustment 5 Each wheel has a height adjustment lever to change the cutting height of the mower Depress height adjustment lever towards the wheel and slide lever to desired position for a change in cutting height See Step 5 illustration Converting To Side Discharge 6 Your mower has been ship...

Page 8: ...il starter is attached to the right upper handle Stand behind the unit and pull the recoil starter rope to start the unit Mulching Plug The mulching plug is used only for mulching purposes This process recirculates the clip pings back to the lawn Do not operate the mower if the mulching plug is not firmly situated on the unit Gas and Oil Fill Up 1 Check oil level and add oil if necessary Follow eng...

Page 9: ...control handle to stop the engine and the blade WARNING The blade continues to ro tate for a few seconds after the engine is shut off Do not touch the blade in any way while it is still rotating 2 Disconnect spark plug wire from spark plug and ground against the engine Using Your Lawn Mower Be sure the lawn is clear of stones sticks wire or other objects which could damage the lawn mower or the en...

Page 10: ...ce of plastic under the gas cap 2 Tip the mower so that it rests on the housing Keep the side with the air cleaner facing up Hold the mower firmly WARNING Never tip the mower more than 90 degrees in any directions and do not leave the mower tipped for any length of time Oil can drain into the upper part of the engine causing a starting problem 3 Scrape and clean the underside of the deck with a su...

Page 11: ...he blade marked Bottom or with part number faces ground when the mower is in the operating position Make sure that the blade is aligned and seated on blade adapter flanges 10 Place blade bell support on the blade Align notches on the blade bell support with small holes in blade 11 Replace hex bolt and tighten hex bolt to torque 450 in lbs min 600 in lbs max To ensure safe operation of your mower p...

Page 12: ...or out of adjustment Engine overheats 1 Fill crankcase with proper oil 2 Remove blower housing and clean 3 Refer to engine manual 1 Engine oil level low 2 Air flow restricted 3 Carburetor not adjusted properly Occasional skips hesitates at high speed 1 Adjust gap to 030 inch 2 Refer to engine manual 1 Spark plug gap too close 2 Carburetor idle mixture adjustment improperly set Idles poorly 1 Reset...

Page 13: ...13 7 Safety Labels WARNING DO NOT remove safety or any labels from mower for any reason ...

Page 14: ...14 28 40 3 4 36 18 6 9 35 17 13 1 23 7 10 16 39 12 27 26 19 22 25 20 37 22 26 38 5 29 31 37 21 24 19 20 25 15 11 8 14 32 33 34 ...

Page 15: ...Shoulder Bolt 26 687 02077A Pivot Arm Assembly RH Front Pivot Arm Assembly LH Rear 687 02076A Pivot Arm Assembly LH Front Pivot Arm Assembly RH Rear 27 687 02179 Handle Bracket Assembly RH 687 02180 Handle Bracket Assembly LH 28 748 04096 Blade Adapter 753 0588 Blade Adapter Kit for service 29 732 0731 Torsion Spring 30 687 02075A Height Adjust Assembly LH 687 02074A Height Adjust Assembly RH 31 7...

Page 16: ... the exterior finish due to use or exposure d Service completed by someone other than an authorized service dealer e MTD does not extend any warranty for products sold or exported outside of the United States its possessions and territories except those sold through MTD s authorized channels of export distribution f Replacement parts that are not genuine MTD parts g Transportation charges and serv...

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