104
Model
ROTARY MOWER
112-011 112-020
I M p o R TA N T
SAFE OPERATION PRACTICES - WALK BEHIND MOWERS
TRAINING
1. Read the Operating and Service Instruction Manual
carefully. Be thoroughly familiar with the controls and
proper use of the equipment.
2. Never allow children to operate a power mower.
3. Keep the area of operation clear of all persons,
particularly small children, and pets.
PREPARATION
1. Thoroughly inspect the area where the equipment is to
be used and remove all stones, sticks, wire, bones and
other foreign objects.
2. Do not operate equipment when barefoot or wearing
open sandals. Always wear substantial footwear.
3. Check fuel before starting engine. Do not fill gasoline
tank indoors, when engine is running, or while engine
is still hot. Wipe off any spilled gasoline before starting
engine.
4. Disengage self-propelled mechanism or drive clutch on
units so equipped before starting engine (motor).
5. Never attempt to make a wheel height adjustment while
engine (motor) is running.
6. Mow only in daylight or in good artificial light.
7. Never operate equipment in wet grass. Always be sure
of your footing; keep a firm hold on the handle and
walk; never run.
OPERATION
1. Do not change engine governor settings or overspeed
engine.
2. Do not put hands or feet near or under rotating parts.
Keep clear of discharge opening at all times.
3. Stop blade(s) when crossing gravel drive, walks or roads.
4. After striking a foreign object, stop the engine (motor),
remove wire from spark plug, thoroughly inspect the
mower for any damage, and repair the damage before
restarting and operating the mower.
5. If the equipment should start to vibrate abnormally,
stop the engine (motor) and check immediately for the
cause. Vibration is generally a warning of trouble.
6. Stop engine (motor) whenever you leave the equipment,
before cleaning mower housing, and when making any
repairs or inspections.
7. When cleaning, repairing or inspecting, make certain
blade and all moving parts have stopped. Disconnect
spark plug wire and keep wire away from plug to prevent
accidental starting.
8. Do not run engine: (motor) indoors.
9. Shut engine (motor) off and wait until blade comes to a
complete stop before removing grass catcher and/or
unclogging chute.
10. Mow across the Face of slopes, never up-and-down.
Exercise extreme caution when changing direction on
slopes. Do not mow excessively steep slopes.
11. Always disconnect electric mowers (line operated)
before cleaning, repairing, or adjusting.
12. Never operate mower without proper guards, plates or
other safety protective devices in place.
13. Keep washout ports and other mower housing service
openings closed when mowing.
MAINTENANCE AND STORAGE
1. Check blade and. engine mounting bolts at frequent
intervals for proper tightness.
2. Keep all nuts, bolts, and screws tight to be sure equip
ment is in safe working condition.
3. Never store equipment with gasoline in the tank inside
of a building where fumes may reach an open flame or
spark. Allow engine to cool before storing in any
enclosure.
4. To reduce fire hazard keep engine free of grass, leaves or
excessive grease.
5. Check grass catcher bags frequency for wear or deterio
ration. Replace with new bags for safety protection.
Nos.
MTD PRODUCTS INC
5389 WEST 130th STREET P. 0. BOX 2,741 CLEVELAND OHIO 44111
FORM NO. 770-3479
112- Oil
112-020
When ordering replacement parts, be sure to specify your mower model
number, part number, description of part, and the number of parts re
quired . . . Parts and service should be handled by your nearest author
ized service firm as recommended by your dealer. Request for parts
and service received at the factory will be forwarded to the appro
priate Central Service Distributor in your area for handling.
When ordering parts give the following information:
1. Model number
2. Part number
3. Part Name
4. Color of part
4-CYCLE ENGINE
Change oil after first 5 hours of op
eration while engine is warm. There
after change oil every 25 hours of
operation while engine is warm.
Engine may be drained through oil
filler opening. Be sure to replace
drain plug and oil filler cap.
PARTS LIST FOR MODELS No. 112-011 and 112-020
Ref. No.
PART NO.
112-011
PART NO.
112-020
DESCRIPTION
1 2-cycle
2 None
4-cycle
Engine
710-158 Hex Head Cap Screw 5/16-24x1-1/4” long *
3 726-106 726-106 Push-on Flange Palnut
4 11144
5
6
11401 11402
736-119
11144
736-119
7 712-123 712-123
8
711-555
711-555
9 710-198 None
10
11
10769
736-105 736-105 Belleville Washer 3/8” Screw
12 714-365
13
14
15
748-189 748-189 Blade Adapter
312-7713
736-217
10769 Blade Adapter Kit
714-365
312-7713 Blade - 18 inch
736-217 Spring Lockwasher - 3/8” Heavy Duty Screw
16 710-459 710-459
17
18
19
20 512-9392
710-117 710-117
305-7006
738-213
305-7006
738-213 Axle Bolt
512-9392
Rear Hinge Rod
Deck Assembly - complete
Spring Lockwasher 5/16 Screw*
Hex Nut 5/16-24 Thread *
Pivot Pin
SEMS Cap Screw 5/16-18x3/4” long *
Hi-Pro Key No. 505*
Hex Head Cap Screw 3/8-24xl'/2” long, heat treated
Hex Head Cap Screw 5/16-24x1” long, heat treated
Fortiflex Bearing
Wheel Assembly - complete
21 11148 11148 Chute Deflector
22
23
11130
11130 Adapter Plate
732-253 732-253 Torsion Spring
24 714-507 714-507 Cotter Pin 3/4” long*
25 11160
26 312-7008 312-7008
27 712-107 712-107
28
29
710-106
312-7584 312-7584
30 347-7092
11160
Protective Shield
Lower Handle
Hex Center Locknut 1/4-20 Thread
710-106 Hex Head Cap Screw 1/4-20x1-1/4” long *
Upper Handle
None
Reinforcement Plate
* For faster service, obtain standard nuts, bolts, and washers locally. If these items cannot be obtained
locally, order by part number and size as shown on parts list.
437 - Flag Red ) V/hen ordering parts if color or finish is important, use the appropriate color code
312- White ) shown at left. (e.g. Flag Red Finish- 11144 (437)).
NOTE: This instruction manual covers various models and all accessories shown do
not necessarily apply to your model mower.
The engine is not under warranty by the mower manufacturer. If repairs or service is
needed on the engine, please contact your nearest authorized engine service outlet.
Check the “Yellow Pages” of your telephone book under “Engines-Gasoline.”
Find us fast in the
ASSEMBLY
Your new mower is shipped preassembled with the exception
of the handle.
1. Remove lawn mower and all parts from the carton. Make
certain that all loose parts and literature have been
removed before the carton is discarded.
2. If mower is equipped with throttle control (two cycle en
gines are constant speed engines and require no throttle
control) extend throttle control assembly which is attached
to engine at the rear of the mower and place on the floor.
CAUTION; Do not bend or kink control wires.
3. Assemble the upper and lower handle parts with cap
screws and locknuts provided in parts bag. On mower
Model 112-020 use the longer (yellow) screw to attach
throttle control.
4. Holes at the bottom of the lower handle are to be fitted
over studs located in front of each rear wheel mounting
position.
5. Secure throttle control wire to lower right handle with
cable clips.
6. Check blade bolts for proper tightness.
OPERATION
For shipping purposes, the wheels on your mower are general
ly set in the upper mounting holes. Relocating the wheels to
the second holes from the bottom will give better mowing
results in most cases. When changing wheel positions, be
sure Belleville washers ate assembled properly. (See cutting
height instructions.)
1. Service engine with gas and oil. See engine manual packed
with lawn mower for complete instructions for the care and
maintenance of engine. READ DIRECTIONS CAREFULLY.
2. When ready to start engine, place throttle control lever on
handle in “START” position and start engine in accord
ance with instructions in engine manual. After engine
starts, move throttle control lever on handle to desired
engine speed. The engine is stopped by placing control
lever on handle in the “STOP” position.
Two cycle engines are constant speed engines. No throttle
control is required. The engine
is stopped by moving the spark
plug shorting lever against the
tip of the spark plug. Be sure this
is moved away before starting
_____________
the engine. ''
------
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3. Be sure that lawn is cleat of stones, sticks, wire or other
objects which could damage lawn mower or engine. For
best results and to insure more even grass distribution, do
not mow when lawn is excessively wet.
ADJUSTMENTS
CAUTION:Do not at any time make any adjustment to lawn
mower without first stopping engine and disconnecting spark
plug wire.
CUTTING HEIGHT
Adjustment may be made by removing and moving wheel studs
to desired position. Cutting heights will be raised as wheel
studs are moved to a lower hole and lowered as wheel studs
are moved to a higher hole in the deck. All wheel studs must
be mounted in a relative position to the deck.
LUBRICATION
IMPORTANT: Always stop engine and disconnect spark plug
wire before cleaning, lubricating or doing any kind of work
on lawn mower.
WHEELS - Wheel bearings are of lifetime Fortiflex. They
require no lubrication.
PROTECTIVE SHIELD - The pivot points on the protective
shield should be lubricated periodically with light oil to
prevent any rust or binding.
CHUTE DEFLECTOR - The torsion spring and pivot point
should be lubricated periodically with light oil to prevent
any rust or binding. Deflector must work freely.
ENGINE - Follow engine manual for lubrication instructions.
MAINTENANCE
CUTTING BLADE: The blade may easily be removed for
grinding or replacement as follows:
1. Remove bolt and lock washer holding blade and blade
adapter to engine crankshaft.
2. Remove blade and blade adapter from engine crankshaft.
3. Remove two bolts, lock washers and nuts holding blade
to the adapter (if necessary).
When sharpening blade, follow the original angle of grind as
a guide. It is extremely important that each cutting edge
receives an equal amount of grindingto preventan unbalanced
blade. An unbalanced blade will cause excessive vibration
when rotating at high speeds and may cause damage to
the mower.
Upon reassembly, make certain all parts are assembled
properly and tightened securely.
DECK - The underside of mower deck should be cleaned
after each period of use as grass clippings, leaves, dirt and
other matter will accumulate. This accumulation of grass
clippings, etc., is undesirable as it will invite rust and
corrosion and may cause an uneven discharge of grass
clippings at the next cutting.
The deck may be cleaned by tilting the mower forward or on
its left side and scraping clean with a suitable tool or by
washingwith a stream of water froma gardenhose. CAUTION;
Do not direct the stream of water at a hot engine as damage
to the engine may result.
STORAGE - The following steps should be taken to prepare
lawn mower for storage.
1. Clean and lubricate mower thoroughly as described in
the preceding instructions.
2. Refer to engine manual for correct engine storage
instructions.
3. Coat mower’s cutting bladewith chassis grease to prevent
rusting.
4. Place blocks under deck to raise tires clear of floor.
5. Store mower in a dry, clean area.
USING YOUR ROTARY MOWER
For the best results do not cut wet grass because it tends to
stick to the underside of the mower, thus preventing proper
discharge of grass clippings. If wet grass must be cut, reduce
engine speed and walking speed to help distribute the clip
pings more effectively.
New grass should be treated as wet grass, otherwise a normal
walking speed is about the right pace for efficient mowing.
The best mowing pattern is one that allows the clippings to
discharge towards the uncut part of the lawn. This permits
recutting of the clippings to further pulverize them. When
cutting high weeds, discharge towards cut portion then recut
at right angles to first direction.
Lawn should be cut in the fall as long as there is growth.
GRASS CATCHER Model No. 192-003 is available as optional
equipment for the mowers shown in this manual.
WARNING:
1. The mower should not be operated without the entire grass
catcher or chute deflector in place.
2. The mower should not be operated without the protective
shield on the rear of the deck in place.
NOTE:
Under normal usage the bag material is subject to deterioration and
wear and should be checked for replacement. Be sure that any re
placement bag complies with the original manufacturer's specifica
tion.
For replacement bags, use only factory authorized replacement bag
No. 764-119.
WARRANTY
For one year from date of purchase, MTD Products Inc will replace for the original purchaser, free of charge,
F.O.B. factory or authorized service firm, any part or parts found to be defective in material or workmanship. All
transportation charges on parts submitted for replacement under this warranty must be paid by the purchaser.
This warranty does not include replacement of parts which become inoperative through misuse, excessive use,
accident, neglect, improper maintenance or alterations by unauthorized persons. This warranty does not include
the engine, motor, battery, battery charger or any component parts thereof. For service on these units refer to
the applicable manufacturer's warranty.
The above warranty will apply only to the original owner and will be effective only if the warranty card has
been properly processed. It will not apply where the unit has been used commercially.
Warranty service is available through your local authorized service dealer or distributor. UNDER NO CIRCUM
STANCES WILL THE RETURN OF A COMPLETE UNIT BE ACCEPTED BY THE FACTORY UNLESS
PRIOR WRITTEN PERMISSION HAS BEEN EXTENDED.
PARTS INFORMATION
MOWER, TILLER, SNOW THROWER AND TRACTOR
PARTS
Mower, tiller, snow thrower and tractor parts are available
through the authorized service firms listed below. All orders
should specify the model number of your unit, parts
numbers, description of parts and the quantity of each part
required.
A 1 Engine & Mower Co.
327 East 9th Street
Salt Lake City, Utah 84102
American Electric Ignition Co.
124 N. W. 8th Street
Oklahoma City, Oklahoma 73102
Auto Electric & Carburetor Co.
2625 4th Avenue, S.
P. O. Box 1948
Birmingham, Alabama 35233
Automotive Equipment Service Co.
3117 Holmes Street
Kansas City, Missouri 64109
Bailey's Rebuild Inc.
1325 E. Madison Street
Seattle, Washington 98102
Brown Equipment Distributor Inc.
110 Beech Street
Corydon, Indiana 47112
Bullard Supply
2409 Commerce Street
Houston, Texas 77003
Center Supply Company
6867 New Hampshire Avenue
Takoma Park, Maryland 20012
R. T. Clapp Co.
2016 Magnolia Ave., N. E.
Knoxville, Tennessee 37917
W. B. Clements
400 Salem Avenue
Roanoke, Virginia 24016
Morton B. Collins Co.
300 Birnie Avenue
Springfield, Massachusetts 01107
Dixie Sales Company
P. O. Box 1408
327 Battleground Avenue
Greensboro, North Carolina 27402
East Point Cycle & Key Shop
1617 Whiteway
East Point, Georgia 30044
Gamble Distributors
West End Avenue
Carthage, New York 13619
Garden Equipment Co., Inc.
6600 Cherry Avenue
Long Beach, California 90805
Henzier, Inc.
2015 Lemay Ferry Road
St. Louis, Missouri 63125
Frank E. Ives & Son
1101 Lincoln Avenue
Prospect Park, Pennsylvania 19076
J. W. Jewett Co.
981 Folsom Street
San Francisco, California 94107
Kenton Supply
8216 North Denver Avenue
Portland, Oregon 97217
Kimber's Inc.
615 W, Genesee Street
Syracuse, New Y ork 13204
Marr Brothers
423 E. Jefferson
Dallas, Texas 75203
Mathews Auto Electric Co.
420 East 2nd Street
Tulsa, Oklahoma 74120
McClure Lawn & Garden Supply
1114 Lexington Avenue
Mansfield, Ohio 44907
Memphis Cycle & Supply Co.
421 Monroe Avenue
Memphis, Tennessee 38103
ENGINE PARTS AND SERVICE
Engine parts and service should be handled by your nearest
authorized engine service firm. Check the yellow pages of
your telephone directory under the listing Engines —
Gasoline, Briggs and Stratton or Tecumseh Lauson — Power
Products.
Moz-AII of Florida, Inc.
365 Greco Avenue
Coral Gables, Florida 33146
National Central, Div. of
Joe Sterling, Inc.
Drawer "D" 687 Seville Rd.
Wadsworth, Ohio 44281
Power Equipment Distributor
36463 So. Gratiot Avenue
Mt. Clemens, Michigan 48043
Parts & Sales Inc.
335 West St. Charles Road
Villa Park, Illinois 60181
Power Lawn & Garden Equip. Co.
2551-2571 J. F. Kennedy Road
Dubuque, Iowa 52001
Raub Supply Company
James & Mulberry Sts.
Lancaster, Pennsylvania 17604
Radco Distributors
2403 Market Street
P. O. Box 3216
Jacksonville, Florida 32206
Richmond Battery & Ignition
P. O. Box 25369 - 957 Myers St.
Richmond, Virginia 23260
Smith Hardware Company
515 N. George Street
Goldsboro, North Carolina 27530
South Denver Lawn Equip. Co.
527 West Evans
Denver, Colorado 80223
Suhren Engine
8330 Earhart Blvd.
New Orleans, Louisiana 70118
Sutton's Lawn Mower Shop
Route 4, Box 343
North Little Rock, Arkansas 72117
Warner Equipment
7520 Lyndale Avenue, So.
Minneapolis, Minnesota 55423
FORM NO. 770-3479
PRINTED IN U.S.A.
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