MTD 112-530A User Manual

OUTER’S MANUAL

22"HI-WHEEL

ROTARY

MOWER

.75

Model Number

112-530A

Important:

Read Safety Rules and

Instructions Carefully

Thank you for purchasing an

American built product.

PRINTED IN U.S.A.

FORM NO. 770-1775

INDEX

Safe Operation Practices........................................3

Assembly Instructions............................................4

Operation..................................................................7

Adjustments.............................................................8

Lubrication.............................................................10

LIMITED WARRANTY

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For one year from the date of original retail purchase, MTD PRODUCTS INC will either repair or replace, at its option, free of charge, F.O.B. factory or authorized service firm, any part or parts found to be defective in material or workmanship. Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the pur chaser. Transportation charges for any parts submitted for replacement under this warran ty must be paid by the purchaser unless such return is requested by MTD PRODUCTS INC.

This warranty will not apply to any part which has become inoperative due to misuse, ex cessive use, accident, neglect, improper maintenance, alterations, or unless the unit has been operated and maintained in accordance with the instructions furnished. This warran ty does not apply to the engine, motor, battery, battery chargeror component parts thereof. Please refer to the applicable manufacturer’s warranty on these items.

Maintenance ..........................................................10

Off-Season Storage...............................................12

Illustrated Parts...........................................15,16,18

Repair Parts List

Parts Information

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Back Cover

15,17,19

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The equipment which you have just purchased does not have a spark arrester. If this equipment is used on any forest covered land, brush covered land, or grass covered unimproved land in the State of California, before using on such land, the California law requires that a spark arrester be provided. In addition, spark arrester is required by law to be in effective working order. The spark arrester must be attached to the exhaust system and comply with Section 4442 of the California Public Resources Code.

This warranty will not apply where the unit has been used commercially. Warranty service is available through your local authorized service dealer or distributor. If

you do not know the dealer or distributor in your area, please write to the Customer Service Department of MTD.

The return of a complete unit will not be accepted by the factory unless prior written per mission has been extended by MTD.

This warranty gives you specific legal rights. You may also have other rights which vary from state to state.

} WARNING \

TO PURCHASERS

OF INTERNAL COMBUSTION ENGINE EQUIPPED

MACHINERY OR DEVICES IN THE STATE OF CALIFORNIA

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^ WARNING I

To reduce the potential for any injury, comply with the foiiowing safety instructions. Faiiure to comply with the instructions may resuit in personai injury.

SAFE OPERATION PRACTICES

TRAiNING

1. It is suggested that this manual be read in its entirety before attempting to assemble or operate this unit. Keep this manual in a safe place for future reference and for ordering replacement parts.

2. Your rotary mower is a precision piece of power equipment, not a plaything. Therefore, exercise extreme caution at all times.

3. Read this Owner’s Manual carefully. Be thoroughly familiar with the controls and the

proper use of the equipment.

4. Never allow children to operate a power

mower. Only persons well acquainted with

these rules of safe operation should be al lowed to use your mower.

5. Keep the area of operation clear of all per sons, particularly small children and pets. Stop engine when they are in the vicinity of your mower. Although the area of operation should be completely cleared of foreign ob jects, a small object may have been over

looked and could be accidently thrown by the mower in any direction and cause injury.

PREPARATION

1. Thoroughly inspect the area where the equip

ment is to be used. Remove all stones, sticks, wire, bones and other foreign objects which could be picked up and thrown by the mower

in any direction and cause injury.

2. Do not operate equipment when barefoot or wearing open sandals. Always wear substan tial footwear.

3. Do not wear loose fitting clothing that could get caught on the mower.

4. Check the fuel before starting the engine. Gasoline is an extremely flammable fuel. Do

not fill the gasoline tank indoors, while the

engine is running, or while the engine is still

hot. Wipe off any spilled gasoline before start ing the engine as it may cause a fire or explo sion.

5. Disengage the self-propelled mechanism or drive clutch on units so equipped before start

ing the engine.

6. Never attempt to make a wheel or cutting

height adjustment while the engine is run ning.

7. Mow only in daylight or in good artificial light.

8. Never operate the 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 the engine governor settings or overspeed the engine. Excessive engine speeds are dangerous.

2. Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at

all times as the rotating blade can cause in jury.

3. Stop the blade when crossing gravel drives, walks or roads. 3

FOR WALK-BEHIND MOWERS

4. After striking a foreign object, stop the engine, remove the wire from the spark plug,

and thoroughly inspect the mower for any damage. Repair the damage before restarting and operating the mower.

5. If the equipment should start to vibrate abnor

mally, stop the engine and check immediately for the cause. Vibration is generally a warning of trouble.

6. Stop the engine whenever you leave the

mower, before cleaning the mower housing, and when making any repairs or inspections.

7. When cleaning, repairing or inspecting, make

certain the blade and all moving parts have stopped. Disconnect the spark plug wire, and keep the wire away from the plug to prevent accidental starting.

8. Before attempting to unclog the mower or

discharge chute, stop the engine and be sure the blade has stopped completely. The cut ting blade continues to rotate for a few seconds after the engine is shut off. Never place any part of the body in the blade area un til you are sure the blade has stopped rotating. Disconnect the spark plug wire and keep the wire away from the plug to prevent accidental starting.

9. Do not run the engine indoors.

10. Shut the engine off and wait until the blade comes to a complete stop before removing the grass catcher or unclogging chute.

11. Mow across the face of slopes, never up-anddown. Exercise extreme caution when chang ing direction on slopes. Do not mow ex cessively steep slopes.

12. Always disconnect electric mowers (line operated) before cleaning, repairing or ad justing.

13. Never operate mower without proper guards, plates or other safety protective devices in place.

14. Keep washout ports and other mower-housing service openings closed when mowing.

MAINTENANCE AND STORAGE

1. Check the blade and engine mounting bolts at

frequent intervals for proper tightness.

2. Keep all nuts, bolts, and screws tight to be

sure the equipment is in safe working condi tion.

3. Never store the equipment with gasoline in the tank inside of a building where fumes may reach an open flame or spark. Allow the engine to cool before storing in any enclosure.

4. To reduce fire hazard, keep the engine free of grass, leaves, or excessive grease.

5. Check the grass catcher bag frequently for wear or deterioration. For safety protection, replace only with new bag meeting original equipment specifications.

0 0 00 0©

FIGURE 1.

Lower

Handle

FIGURE 2.

ASSEMBLY INSTRUCTIONS

NOTE

This unit is shipped WITHOUT GAS OLINE or OIL. After assembly, see operating section of this manual for proper fuel and engine oil recom mendations.

Loose Parts in Carton:

(1) Lower Handle (1) Lower Handle Support—Left Hand

Lower Handle Support—Right Hand

(1)

Upper Handle Assembly

(1)

Hardware Pack

(1)

Control Rod

(1)

Contents of Hardware Pack: (See Figure 1)

Hex Bolts V4-20 x 2.50" Long

(2)

Hex Center Lock Nuts V4-20 Thread

(6)

Cable Ties

(2)

Truss Machine Screws #10-24 x .38" Long

(2)

Speed Nuts #10-24

(2)

Hex Bolts V4-20 x 1.50" Long

(2)

External Lock Washers

(2)

Ferrule

(1)

Hex Bolts 3/8-16 X .62" Long

(2)

Q (2)

Remove the lawn mower, loose parts, hardware pack and literature from the carton. Make certain

all parts and literature have been removed before the carton is discarded.

Extend throttle control assembly which is at tached to the rear of the mower and place on the floor. Be careful not to bend or kink control wire.

HANDLE ASSEMBLY

1. Assemble lower handle to frame assembly by

Lock Washers 3/8" I.D.

(2)

Hex Nuts 3/8-16 Thread

(2)

Hex Bolt 1/4-28 X .75" Long

(1)

Flat Washer .510 I.D. x .750 O.D.

M (1)

Hex Center Lock Nut Va-ZS Thread

N (1)

Hex Bolt 1/4-20 X 1.25" Long

O (2)

Lockout Lever Assembly (Not Shown)

P (1)

Hand Grips (Not Shown)

lining up hole in lower handle with center hole in frame assembly. See figure 2. Secure using hex bolts (I), lock washers (J) and hex nuts (K)

on the inside of frame. Two 9/16" wrenches are required.

FIGURE 3.

2. Fasten bottom of left and right hand lower

------

handle supports to frame using hex bolts (A)

and hex lock nuts (B). See figure 3.

Hold upper handle assembly In position over lower handle. Select one of five holes in lower handle support. Fasten lower handle support to upper and lower handle using hex bolt (F), external lock washer (G) and hex lock nut (B).

-Do not tighten. See figure 4.

NOTE

The five holes in the lower

handle support allow handle height adjustment. See adjust

ment section.

NOTE

Figure 4 is shown with the handle panel removed for clarity only. It is

not necessary to remove the handle panel when assembling the handle.

Spee

Nuts (E)

4. Secure handle panel, upper handle and lower handle with hex bolts (O) and hex lock nuts (B)

as shown in figure 5.

5. Tighten securely all nuts and bolts used in

handle assembly.

6. Slip hand grips onto the ends of the upper handle. They will slip on more easily if you

first soak them in warm, soapy water.

THROTTLE CONTROL INSTALLATION

1. Slide speed nuts (E), flat side up, onto the

------

throttle control assembly. See figure 6.

FIGURE 6.

Screws (D)

FIGURE?.

Control

Rod

Throttle

Control

Ferrule (

2. Place throttle control up through slot provided

in handle panel. Secure with two screws (D).

— See figure 7.

3. Secure throttle control wire to handle using

cable ties (C).

CONTROL ROD INSTALLATION

1. Pull pivot bracket up as far as it will go. See

-----

figure 8. Place ferrule (H) through hole in pivot

bracket. Thread control rod into ferrule ap proximately one-half inch.

FIGURE 8.

FIGURES.

2. Hook control rod into hole provided in lockout lever assembly (O). Hold lockout lever in a

raised position as shown in figure 9. Thread control rod in or out of ferrule as necessary until hole in lockout lever lines up with hole in

— lockout bracket. See figure 9.

3. When correct adjustment is reached, secure lever to bracket using hex bolt (L), flat washer

(M) and hex lock nut (N).

NOTE

Check control rod adjustment. A slight pressure should be needed to operate lockout lever. Too much

pressure can break lever assembly

or control rod. Readjust control

rod if pressure is too great.

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