Yard-Man 21A-458B401 Operator's Manual

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Operator’s Manual

Rear Tine

21A-458B401

Tiller RT65

IMPORTANT: Read safety rules and instructions carefully before operating equipment.

Warning:

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 368022 Cleveland, Ohio 44136-9722.

PRINTED IN U.S.A.

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

MTD PRODUCTS INC P.O. BOX 368022 CLEVELAND, OHIO 44136-9722

FORM NO.

770-10085C.fm

(9/99)

TABLE OF CONTENTS

Content Page

Important Safe Operation Practices................................................................... 3, 4

Loose Parts ...................................................................................................... 5

Assembling Your Tiller....................................................................................... 6

Know Your Tiller................................................................................................. 8

Operating Your Tiller ..........................................................................................9

Making Adjustments .......................................................................................... 10

Maintaining Your Tiller ....................................................................................... 11

Service............................................................................................................... 11

Off-Season Storage ........................................................................................... 13

Troubleshooting ................................................................................................. 13

Parts List............................................................................................................ 14

FINDING MODEL NUMBER

This Operator’s Manual is an important part of your new Tiller. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says.

Before you start assembling your new equipment, please locate the model plate on the equipment and copy the information from it in the space provided below. The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer.

• You can locate the model number by standing in the operating position behind the unit and looking down at the center of the rear tine cover. A sample model plate is explained below. For future reference, please copy the model number and the serial number of the equipment in the space below.

Copy the model number here:

Copy the serial number here:

MTD PRODUCTS INC

P.O. BOX 368022

CLEVELAND, OHIO 44136

CALLING CUSTOMER SUPPORT

If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, please call the Customer Support Department.

Call 1-(800)-800-7310 or 1-(330) 220-4MTD to reach a Customer Support representative. Please have your unit’s model number and serial number ready when you call. See previous section to locate this information. You will be asked to enter the serial number in order to process your call.

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT

FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE YOUR TILLER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL— HEED ITS WARNING.

WARNING: The Engine Exhaust from this product contains chemicals known to the State of

California to cause cancer, birth defects or other reproductive harm.

DANGER: Your tiller was built to be operated according to the rules for safe operation in this manual.

As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This tiller is capable of amputating hands and feet. Failure to observe the following safety instructions could result in serious injury or death.

GENERAL OPERATION

• Read this operator’s manual carefully in its entirety before attempting to assemble this machine. Read, understand, and follow all instructions on the machine and in the manual(s) before operation. Be completely familiar with the controls and the proper use of the machine before operating it. Keep this manual in a safe place for future and regular reference and for ordering replacement parts.

• Your tiller is a powerful tool, not a plaything. Therefore, exercise extreme caution at all times. Your unit has been designed to perform one job: to till soil. Do not use it for any other purpose.

• Never allow children under age 14 to operate the unit. Children 14 years and older should only operate the unit under close parental supervision. Only responsible individuals who are familiar with these rules of safe operation should be allowed to use your unit.

• Do not operate tiller while under the influence of alcohol or drugs.

• Keep the area of operation clear of all persons, particularly small children and pets. Stop the engine when they are in the vicinity of your tiller.

• Wear sturdy, rough-soled work shoes and close fitting slacks and shirt. Shirt and slacks that cover the arms and legs and steel-toed shoes are recommended. Do not wear loose fitting clothes or jewelry and secure hair so it is above shoulder length. They can be caught in moving parts. Never operate a unit in bare feet, sandals or sneakers.

• Operate tiller only in daylight or good artificial light.

• Do not start tiller unless the shift lever (if provided) is in the neutral (N) position.

• Do not allow anyone to stand or walk in front of tiller when starting or running engine.

• Do not place feet or hands on or near the tines when starting the engine or while the engine is running.

• Never attempt to make depth bar, tine width, cable, handle, or wheel adjustments while the engine is running.

• Do not leave the tiller unattended with the engine running.

• Before attempting to remove rocks, bricks and other objects from tines, stop the engine and be sure the tines have stopped completely. Disconnect the spark plug wire and move it away from the spark plug.

• If your machine should start making an unusual noise or vibration, immediately stop the engine and allow the machine to come to a complete stop. Disconnect the spark plug wire and move it away from the spark plug. Take the following steps:

• Inspect for damage.

• Repair or replace any damaged parts.

• Check for any loose parts and tighten to assure continued safe operation.

• Muffler and engine become hot and can cause a burn. Do not touch.

• Keep all shields, guards and safety devices in place and operating properly.

• Use caution when tilling near fences, buildings and underground utilities. Rotating tines can cause damage or injury.

• Do not operate engine if air cleaner or cover over carburetor air intake is removed, except for adjustment. Removal of such parts could create a fire hazard.

• Only use accessories approved for this machine by the manufacturer. Read, understand, and follow all instructions provided with the approved accessory.

• If situations occur which are not covered by this manual, use care and good judgment. Contact your dealer for assistance.

CHILDREN

• Tragic accidents can occur if the operator is not alert to the presence of small children. Children are often attracted to the tilling activity. Never assume that children will remain where you last saw them.

• Keep children out of the work area and under the watchful eye of a responsible adult other than the operator.

• Be alert and turn the unit off if a child enters the area.

• Never allow children under the age of 14 to operate the tiller.

SERVICE

• Use extreme care in handling gasoline and other fuels. They are extremely flammable and the vapors are explosive.

• Store fuel and oil in approved containers, away from heat and open flame, and out of the reach of children. Check and add fuel before starting the engine. Never remove gas cap or add fuel while the engine is running. Allow engine to cool at least two minutes before refueling.

• Replace gasoline cap securely and wipe off any spilled gasoline before starting the engine as it may cause a fire or explosion.

• Extinguish all cigarettes, cigars, pipes and other sources of ignition.

• Never refuel unit indoors because flammable vapors will accumulate in the area.

• Never store the machine or fuel container inside where there is an open flame or spark such as a gas hot water heater, space heater, clothes dryer or furnace.

• Never run your machine in an enclosed area as the exhaust from the engine contains carbon monoxide, which is a odorless, tasteless and deadly poisonous gas.

• To reduce fire hazard, keep engine and muffler free of leaves, grass, and other debris build-up. Clean up fuel and oil spillage. Allow unit to cool at least 5 minutes before storing.

• Before cleaning, repairing, or inspecting, make certain the tines and all moving parts have stopped. Disconnect the spark plug wire and keep wire away from spark plug to prevent accidental starting. Do not use flammable solutions to clean air filter.

• We do not recommend the use of pressure washers to clean your unit. They may cause damage to electric components, spindles, pulleys, bearings or the engine. The use of pressure washers will result in shortened life and reduce serviceability.

• Keep all nuts, bolts, and screws tight to be sure the equipment is in safe working condition.

• Never tamper with safety devices. Check their proper operation regularly.

• Do not alter or tamper with the engine’s governor setting. The governor controls the maximum safe operating speed of the engine. Overspeeding the engine is dangerous and will cause damage to the engine and to other moving parts of the machine.

WARNING — 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.

Figure 1 Safety labels found on your unit

SECTION 2: LOOSE PARTS

Handle

Assembly

Control

Rod

Depth

Stake

Assembly

NOTE: Cable tie not shown.

SECTION 3: ASSEMBLING YOUR TILLER

IMPORTANT:

GASOLINE or OIL. After assembly, see separate engine manual for proper fuel and engine oil recommendations.

NOTE: Left and right is determined from the operator’s position, standing behind the tiller.

The Engine is shipped WITHOUT

TOOLS REQUIRED FOR ASSEMBLY

Adjustable Wrenches

Pair of Pliers

Screw Driver

TO REMOVE UNIT FROM CARTON

• Remove staples, break glue on top flaps, or cut tape at carton end and peel along top flap to open carton.

• Remove loose parts included with unit (i.e., operator’s manual, bottle of oil,etc.).

• Cut corners and lay carton down flat.

• Remove packing material.

• Roll or slide unit out of carton. Check carton thoroughly for loose parts.

• Extend control cable and lay on the floor. Be careful not to bend or kink control cable.

ATTACHING DEPTH STAKE ASSEMBLY

• Tip the tiller forward so it rests on front counterweight.

• Raise the tine shield hinge flap assembly. Remove "T" knob, flat washer and hex bolt from depth stake. Insert the depth stake assembly in front of spacer (under the tine shield) and up through the tine shield assembly as shown in Figure 2.

• Insert clevis pin through the tine shield and the second hole from top of the depth stake. Secure with hairpin clip.

• Insert hex bolt into the top hole of the depth stake assembly. Place flat washer on hex bolt and thread “T” knob onto the hex bolt. See Figure 2. Tighten securely.

• Tip the tiller back down so it rests on the depth stake (transport position).

ATTACHING THE HANDLE ASSEMBLY

Remove

Handle

Ass’y

T-Knob Hex Bolt

Depth

Washer

Depth Stake

StakeStake

Figure 2

T-Knob

Hex Bolt

Washer

Handle Bracket

Clevis Pin

Hairpin Clip

Figure 3

• Remove top two bolts and flange lock nuts from handle mounting brackets as shown in Figure 3. Do not remove the bottom bolt and nut.

• Place handle assembly in position between the handle mounting brackets. See Figure 3.

• Line up holes in handle with holes in handle mounting brackets. Secure with hardware removed in step 1.

ot Head Screw,

Nut, Flat Washers

Internally Threaded

Tube

Plastic Fitting

Figure 4

ATTACHING THE CLUTCH CABLE

Attach the clutch cable to the handle as follows (be careful not to kink the cable).

• Remove threaded eyebolt and nut from the end of the cable.

• Route the clutch cable to the right side of the handle mounting brackets and underneath the handle.

• Push the cable through the hole in the center of the handle and snap in the plastic fitting. See Figure 4.

• Remove slot head screw, nut and two flat washers from the clutch bail.

• Fasten the threaded eyebolt onto bail as shown in Figure 5. The parts go together from top to bottom as follows: Slot Head Screw, Flat Washer, Clip, Eyebolt, Flat Washer and 1/4” Nut.

• Thread eyebolt and #10 nut, removed in step 1, into the internally threaded tube at the end of the cable. Thread engagement should be about 3/4”. Tighten nut against tube at end of cable. See Figure 5.

Clutch Bail

Threaded Eyebolt

#10 Nut

Slot Head Screw

”

Internally Threaded Tube

Flat Washers

1/4” Nut

NOTE: Do not overtighten clutch cable. Too much

tension may cause it to break.

WARNING: Be certain to check the

clutch cable adjustment as instructed on this page before operating the tiller.

Secure clutch cable to handle using cable tie. Refer to Figure 7. Cut off excess end of cable tie.

ATTACHING THE CONTROL ROD

• Remove hairpin clips from control rod, (rubber washers to remain on control rod).

• Insert the shorter, (angled), end of the control rod through the indicator bracket on the shift cover and secure with hairpin clip that was removed in step 1. See Figure 6.

• Insert the longer end of the control rod through the hole in the gear selector handle and secure with hairpin clip.See Figure 7.

Control Rod

Rubber

Washer Idler Pulley Rod

Figure 6

Indicator Bracket

Hairpin

Clip

CHECKING THE CLUTCH ADJUSTMENT

IMPORTANT:

before checking this adjustment. Refer to the separate engine manual packed with your tiller for proper fuel and engine oil recommendations.

Position the tiller so the front counterweight is against a solid object, such as a wall. With the gear selection lever in NEUTRAL, start the engine. Refer to the separate engine manual.

Standing on the right side of the tiller, examine the belt (inside the belt cover). It should not be turning.

NOTE: Do not put fingers under the belt cover.

If the belt turns without bail engaged, adjust by

unthreading the internally threaded tube at the end of the cable a few turns clockwise (when standing in operator’s position), and then retighten the nut against the tube.

Service the engine with oil and gasoline

Figure 5

Now move the shift lever to FORWARD (Wheels Forward) position. Carefully engage the clutch by lifting the clutch control bail against the handle. The wheels should spin.

If the wheels do not spin with the unit in forward,

adjust by unthreading the tube at the end of the cable a few turns counter-clockwise, (when standing in operator’s position), and then retighten the nut against the tube.

Recheck both adjustments, and readjust as necessary.

SECTION 4: KNOW YOUR TILLER

NOTE: A secondary cable adjustment is available if you reach the point that additional adjustment is needed. Remove the belt cover and move the hex nuts at the other end of the cable towards the end of the casing. Then readjust the hex nuts at the handle.

TIRE PRESSURE

The tires on your unit may be over-inflated for shipping purposes. Reduce the tire pressure before operating the unit. Recommended operating tire pressure is approximately 20 p.s.i. (check sidewall of tire for tire manufacturer’s recommended pressure).

WARNING: Maximum tire pressure

under any circumstances is 30 p.s.i. Equal tire pressure should be maintained on both tires.

Clutch

Gear Selection Handle

Height Adjustment Lever

Control Rod

Clutch Cable

Cable Tie

Figure 7

Control Bail

THROTTLE CONTROL

The throttle control lever is located on the engine. It controls the engine speed and stops the engine. See Engine manual for further information.

CHOKE LEVER

The choke lever is located to the left of the throttle. It is used to enrich the fuel mixture in the carburetor when starting a cold engine. See Engine manual for further information.

GEAR SELECTION HANDLE

The gear selection handle is located in the center of the handle on the tiller. It is used to select NEUTRAL, REVERSE, or one of the FORWARD modes (see below). Pull or push the handle so that the indicator on top of shift cover points to the operating mode desired. See Figure 7.

NEUTRAL—Transmission is in neutral.

REVERSE—Reverse wheel drive.

FORWARD Modes:

Wheels Forward— Forward wheel drive only.

Tines Reverse— Forward wheel drive and reverse tine drive.

Tines Forward— Forward wheel and tine drive.

WARNING: Make certain unit is in

NEUTRAL when starting the engine.

NOTE: If difficulty is encountered in moving the gear selection handle, move the tiller forward or backward slightly to allow the gears to synchronize.

CLUTCH CONTROL BAIL

The clutch control bail is located below the handle. See Figure 7. Lifting the clutch control bail against the handle engages the wheel and tine drive mechanisms.

NOTE: Never engage clutch lever while shifting.

SECTION 5: OPERATING YOUR TILLER

DEPTH STAKE

The depth bar controls the tilling depth. Refer to SECTION 5: OPERATING YOUR TILLER on this page.

HANDLE ADJUSTMENT

The handle may be adjusted to be raised or lowered in line with the tiller. To adjust the handle position loosen the handle height adjustment crank a few turns. Pivot handle up or down to desired position. Tighten crank.

NOTE: Engine is shipped without oil.

WARNING: Use the reverse tine drive

when tilling virgin ground, sod or hard soil. Use the forward tine drive when cultivating or tilling soft ground.

BEFORE STARTING

• Service engine with oil as instructed in the separate engine manual packed with your unit.

• Fill fuel tank with clean, fresh, lead-free, low-lead or regular grade leaded gasoline.

TO START ENGINE

WARNING: Be sure no one is standing

in front of the tiller while the engine is running or being started.

• Place the throttle control lever in the FAST (rabbit) position.

• Move choke lever to CHOKE position.

NOTE: A warm engine may not require choking.

• Stand at side of tiller. Grasp the starter handle with your right hand and pull out slowly, until it pulls slightly harder. Place your left hand on the lower portion of the upper handle.

• Pull starter handle rapidly. Do not allow handle to snap back. Allow it to rewind slowly while keeping a firm hold on the starter handle.

• Repeat steps 3 and 4 until engine starts.

• As engine warms up and begins to operate evenly, move choke lever gradually to RUN position. If engine falters, return to choke position, then slowly move to RUN position.

• Refer to engine manual for additional engine information.

NOTE: After starting engine and prior to using the tiller, be certain to check the clutch adjustment as described in “Checking the Clutch Adjustment” section of Assembly Instructions.

TO STOP ENGINE

• Move throttle control to the STOP position.

• Disconnect spark plug wire and ground to prevent accidentally starting while equipment is unattended.

NOTE: After the first ten hours of operation, recheck the clutch adjustment. Refer to “Checking the Clutch Adjustment” section of the Assembly Instructions.

WARNING: When operating the tiller for

the first time, use the depth stake setting that gives 1 inch of tilling depth (second hole from the top). See Figure 8.

Tilling depth is controlled by the depth stake which can be adjusted to five different settings. See Figure 8. Adjust the side shields as shown in Figure 9, as you adjust the depth stake. Be certain spark plug wire is disconnected and grounded against the engine.

• When using the tiller for the first time, use the second adjustment hole from the top (1" of tilling depth). See Figure 8.

• When breaking up sod and for shallow cultivation, use the setting which gives 1" of tilling depth (second hole from the top). Place the side shields in their lowest position. For further depth, raise the depth stake and side shields and make one or two more passes over the area.

• When tilling loose soil, depth stake may be raised to its highest position (use bottom adjustment hole) to give the deepest tilling depth. Raise the side shields to their highest position.

Use This Position First Time

Clevis Pin

Transport Position

TO OPERATE THE TILLER:

• Select the depth stake setting.

• Start engine as instructed on page 9.

• Move gear selection handle to one of the forward

modes or reverse.

Use the reverse tine drive when tilling virgin ground, sod or hard soil. Use the forward tine drive when cultivating or tilling soft ground.

IMPORTANT:

the depth stake (use a shallower tilling depth) to make certain the tines do not run across the ground.

When using the forward tine drive, lower

Hairpin Clip

Figure 8

• To transport tiller, lower the depth stake (use top adjustment hole).

• To adjust the depth stake, remove the clevis pin and hairpin clip. See Figure 8. Move the depth stake to the desired setting.

• To adjust the side shields, remove the front wing nut and loosen the rear wing nut. See Figure 9. Place side shield in position desired. Replace wing nuts and tighten securely.

Use This

Hole for

Lowest (Shallowest)

Position

Front Wing Nut

Side

Shields

Rear Wing Nut

WARNING: Do not move the gear

selection handle with the wheels or tines engaged. Make certain the unit is stopped completely before changing the gear selection.

• Squeeze the clutch control bail against the handle to engage the wheels and tines.

NOTE: Make certain the gear selection indicator is correctly positioned before engaging the clutch handle. If it is between gears, the engine will stall.

To transport tiller, do not engage the tines. Select the wheel drive only.

WARNING: Do not push down on the

handles so that the wheels are lifted off the ground while using the reverse tine drive, or the tiller could move backward and cause personal injury.

For best results, it is recommended the garden be tilled twice (lengthwise, then widthwise) to pulverize the soil.

Use This Hole for

Highest (Deepest)

Position

Figure 9

SECTION 6: MAKING ADJUSTMENTS

HANDLE ADJUSTMENT

The handle height may be adjusted. Refer to the Know Your Tiller section for details of handle adjustment.

BELT TENSION ADJUSTMENT

Periodic adjustment of the belt tension may be required due to normal stretch and wear on the belt. Adjustment is needed if the tines or wheels seem to hesitate while turning, but the engine maintains the same speed.

To adjust the tension on the belt, refer to clutch adjustment information in “Checking the Clutch Adjustment” section of the Assembly Instructions. After belt tension has been adjusted, if the belt is excessively stretched, you may need to adjust the idler pulley rod. This can easily be checked. With the engine off and the clutch control bail disengaged, shift the gear selection handle to each forward mode. If the indicator bracket touches the idler pulley rod, (with the clutch control bail disengaged), then an adjustment is necessary.

• Disconnect and ground out spark plug wire against the engine.

• Remove the belt cover as described in the belt replacement section on page 12.

• Remove the hairpin clip and spring washer from the idler pulley rod. See Figure 11.

• Move the idler pulley rod to the lower hole in the idler bracket. See Figure 11.

• Replace the spring washer and hairpin clip.

• Check clearance of the idler pulley rod to the indicator bracket by shifting to each forward mode, as before.

SECTION 7: SERVICE

Transmission—The transmission is pre-lubricated and sealed at the factory. It requires no checking unless the transmission is disassembled. To fill with grease, lay the right half of the transmission on its side. Add 30 ounces of Benalene 920 grease. Apply a bead of RTV or silicone sealant to the right half of the transmission, all the way around the gear compartment. Assemble the left half to it. This grease can be obtained at your nearest authorized dealer. Order part number 737-

0300.

CARBURETOR ADJUSTMENT

WARNING: If any adjustments are made

to the engine while the engine is running, (e.g. carburetor), disengage all clutches and tines. Keep clear of all moving parts. Be careful of heated surfaces and muffler.

Never make unnecessary adjustments. The factory settings are correct for most applications. If adjustments are needed, refer to the separate engine manual packed with your tiller.

Clutch Bail—Lubricate the pivot point on the clutch bail and the cable at least once a season with light oil. The control must operate freely in both directions.

Pivot Points—Lubricate all pivot points and linkages at least once a season with light oil.

Tine Shaft—Remove tines at least once a season and lubricate with oil.

Wheel Axle—Remove the wheel assemblies at least once a season and lubricate with oil.

SECTION 8: MAINTAINING YOUR TILLER

WARNING: Disconnect the spark plug

wire and ground it against the engine before performing any repairs or maintenance.

ENGINE

Refer to the separate engine manual for engine maintenance instructions.

Your engine is equipped with a oil drain pipe and cap located on the bottom right side of the engine which will help in draining the oil from the engine. Always drain oil when it is warm. To drain oil, remove cap and drain oil into a suitable container. Dispose of oil properly.

Maintain engine oil as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully.

Service air cleaner every ten hours under normal conditions. Clean every hour under extremely dusty conditions. Poor engine performance and flooding usually indicates that the air cleaner should be serviced. To service the air cleaner, refer to the separate engine manual packed with your unit.

IMPORTANT:

completely assembled.

The spark plug should be cleaned and the gap reset every 25 hours of engine operation. Spark plug replacement is recommended at the start of each tiller season; check engine manual for correct plug type and gap specification.

Clean the engine regularly with a cloth or brush. Keep the cooling system (blower housing area) clean to permit proper air circulation which is essential to engine performance and life. Be certain to remove all dirt and combustible debris from muffler area.

Never run your engine without air cleaner

CLEANING THE TINE AREA

Clean the underside of the tine shield after each use. The dirt washes off the tines easier if washed off immediately instead of after it dries.

We do not recommend the use of pressure washers to clean your unit. They may cause damage to electric components, spindles, pulleys, bearings, or the engine. The use of pressure washers will result in shortened life and reduce serviceability.

BELT REPLACEMENT

CAUTION: Do not use an off-the-shelf

belt.

Self Tap

Screw

Torx Screws

Figure 10

Belt Cover

Hex Cap Nut

Flat Washer

Your tiller has been engineered with a belt made of special material (Kevlar Tensile) for longer life and better performance. It should not be replaced with an off-the-shelf belt.

If belt replacement is required, order belt by part number from your nearest authorized dealer.

Part No. 754-0434—‘‘V’’ Belt

• Disconnect and ground the spark plug wire against the engine.

• Remove the belt cover from the left side of the tiller as follows: See Figure 10.Remove two torx screws from the top of belt cover.

• Remove the hex cap nut and flat washer from the side of the belt cover. Remove the self tap screw at the bottom of the front of the cover.

• Remove the belt keeper bracket located behind the engine pulley by removing two hex bolts and lock washers. See Figure 11.

• Remove belt. Reassemble new belt, following instructions in reverse order.

Upon reassembly, make certain the belt is routed over the idler pulley and inside of belt keepers by engine pulley. See Figure 11.

Idler Pulley Rod

Engine Pulley

Belt Keeper Brkt.

Figure 11

Idler Brkt.

TIRES

Recommended operating tire pressure is approximately 20 p.s.i. (check sidewall of tire for tire manufacturer’s recommended pressure). Maximum tire pressure under any circumstances is 30 p.s.i. Equal tire pressure should be maintained on both tires.

When installing a tire to the rim, be certain rim is clean and free of rust. Lubricate both the tire and rim generously. Never inflate to over 30 p.s.i. to seat beads.

WARNING: Excessive pressure (over 30

p.s.i.) when seating beads may cause tire/ rim assembly to burst with force sufficient to cause serious injury.

SECTION 9: OFF-SEASON STORAGE

If the tiller will not be used for a period longer than 30 days, the following steps should be taken to prepare the tiller for storage.

• Clean the exterior of engine and the entire tiller thoroughly. Lubricate the tiller as described in the lubrication instructions.

SECTION 10: TROUBLE SHOOTING GUIDE

Trouble Possible Cause(s) Corrective Action

Engine fails to start

Engine runs erratic

Engine overheats

Tines do not engage

Tines skip over ground Wheels do not engage

Fuel tank empty, or stale fuel.

Throttle control lever not in correct starting position (if so equipped). Blocked fuel line. Dirty aircleaner. Choke not in ON position. Spark plug wire disconnected. Faulty spark plug. Engine flooded. Unit running on CHOKE. Spark plug wire loose. Blocked fuel line or stale fuel.

Vent in gas cap plugged. Water or dirt in fuel system. Dirty air cleaner. Carburetor out of adjustment. Engine oil level low. Dirty air cleaner. Air flow restricted. Carburetor not adjusted properly. Foreign object lodged in tines. Tine clevis pin(s) missing. Pulley and idler not in correct adjustment. Not shifting properly.

Control cable not adjusted properly. Belt worn and/or stretched. Improper rotation. Forward rotation should only be used on soil that has

Clevis pin missing. Tiller is not being shifted properly.

Control cable not adjusted properly. Belt worn and/or stretched.

• Refer to the engine manual for correct engine storage instructions.

• Wipe tines with oiled rag to prevent rust.

• Store tiller in a clean, dry area. Do not store next to

corrosive materials, such as fertilizer.

NOTE: When storing any type of power equipment in an unventilated or metal storage shed, care should be taken to rustproof the equipment. Using a light oil or silicone, coat the equipment, especially any springs, bearings and cables.

Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Move throttle lever to start position.

Clean fuel line. Refer to the engine manual packed with your unit. Move switch to ON position. Connect wire to spark plug. Clean, adjust gap or replace. Refer to the engine manual packed with your unit. Move choke lever to OFF position. Connect and tighten spark plug wire. Clean fuel line; fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Clear vent. Drain fuel tank. Refill with fresh fuel. Refer to the engine manual packed with your unit. Refer to the engine manual packed with your unit. Fill crankcase with proper oil. Refer to the engine manual packed with your unit. Refer to the engine manual packed with your unit. Adjust carburetor as instructed in separate engine manual. Dislodge foreign object. Replace tine clevis pin(s). Take unit to authorized service dealer.

Refer to Controls section of operator’s manual for proper shifting procedures. Adjust control cable (see assembly instructions). Replace belt.

already been tilled, not on virgin soil. Replace clevis pin. Refer to Controls section of operator’s manual for proper shifting procedures. Adjust control cable (see assembly instructions). Replace belt.

NOTE: For repairs beyond the minor adjustments above, contact your local authorized service dealer.

SECTION 11: PARTS LIST FOR MODEL 458

MODEL 458

REF.

NO. PART NO. DESCRIPTION

1 611-0020 Wheel Shaft Ass’y: 33T

2 611-0021 Tine Shaft Ass’y: 18T 3 611-0128 Jack Shaft Ass’y 4 611-0129 Input Shaft Ass’y 5 617-0058 Rev. Idler Gear Ass’y: 30T 6 617-0059 Ftine Idler Gear Ass’y: 30T

7 617-0060 Tine Input Sprocket Ass’y: 9T 8 617-0061 Wheel Input Sprocket Ass’y: 10T 9 617-0062 Gear Ass’y: 11T 10 686-0108 R.H. Housing Ass’y 11 710-0376 Hex Bolt 5/16-18 x 1" Lg.

12 710-0599 Hex S-Tap Scr. 1/4- 20 x .5" 13 710-0604 Hex S-Tap Scr. 5/16-18 x .625" 14 710-3008 Hex Bolt 5/16-18 x .75" 15 711-1349 Input Shaft 16 712-0378 Hex Nut 7/16-20

17 712-3004A Flange Nut 5/16-18 18 713-0367 #420 Chain 1/2 Pitch x 50 Links 19 713-0484 #50 Chain 5/8 Pitch x 54 Links 20 716-0865 Snap Ring 21 717-0853 Shifting Fork

22 717-1582 Spur Gear 44T 23 717-1583 Spur Gear 30T 24 717-1584 Spur Gear 30T 25 717-1585 Spur Gear 44T 26 717-1587 Spur Gear 44T

27 717-1594 Spur Gear 16T

REF.

NO. PART NO. DESCRIPTION

28 721-0378 Seal 1.0 Shaft

29 721-0379 Seal .75 Shaft 31 726-0277 Taper Cap Ring 32 732-0496 Compression Spring .50" Lg. 33 736-0163 Thrust Wash. 1.03" I.D. x 1.62" O.D. 34 736-0351 Fl-Wash .76" I.D. x 1.5" O.D.

35 736-0407 Bell-Wash .45" I.D. x 1.0" 36 736-0518 Thrust Wash. .445 x 1.92 x .060 37 736-3088 Fl-Wash. .635" I.D. x 1.59 O.D. 40 738-0645 Detent Shaft 1/2" Dia. 41 738-0648 Jack Shaft .625 x 2.385

42 738-1013 Jack Shaft .625 x 5.0 43 741-0124 Ball Bearing 44 741-0420 Flange Bearing 1.0 x 2.5 x 1.38 45 741-0421 Flange Bearing .75 x 2.5 x 1.38 46 741-0563 Ball Bearing . 6692 x 5745 x .466

47 741-0862 Detent Ball .250 48 750-0258 Spacer .315 49 750-0570 Spacer 1.0 I.D x 2.0 O.D. x .440 50 750-0664 Spacer .505 I.D. x .88 O.D. x .440 51 750-0671 Spacer .75 x 2.0 x .50

52 786-0171 L.H. Chain Case Ass’y 53 786-0238 Gear Positioner Bracket

- 737-0300 Benelene 920 Grease

- 737-0288 Never Seez Grease

- 686-0107 Gear Case Assembly Complete

NOTE: For painted parts, please refer to the list of color codes below. Please add the applicable color code, wherever needed, to the part number to order a replacement part. For instance, if a part numbered 700-xxxx is painted Yard-Man Green, the part number to order would be 700-xxxx-0665.

Yard-Man Green: 0665

Yard-Man Yellow: 0674

Powder Black: 0637

MODEL 458

REF.

NO. PART NO. DESCRIPTION

1 747-1152 Shift Rod 2 649-0041 Upper Handle Ass’y 3 649-0034 Lower Handle Ass’y 4 710-3005 Hex Screw 3/8-16 x 1.25 5 710-3056 Hex Screw 5/16-18 x 3.25 6 711-0415 Clevis Pin 3/8-1.62 7 712-0379 Flange Lock Nut 3/8-24 8 712-0429 Hex Lock Nut 5/16-18 9 714-0147 Cotter Pin 10 720-0313 Grip 11 720-0210A T-Knob 12 720-0278A Foam Grip 14 726-0317 Cable Tie 15 735-0246 Plug 16 736-0117 Flat Washer 3/8 x .620 x .033 17 736-0242 Bell Wash. .340 I.D. x .872 O.D. 18 738-0958 Shoulder Spacer 19 784-0190 Handle Adjustment Crank 20 784-0191 Hex Nut Ret. Bracket

21 786-0120 Depth Stake 22 747-1219 Bail Clutch 23 786-0181 Shift Lever Rod 24 686-0044A Tine Shield Cover Ass’y 25 710-0176 Hex Cap Screw 5/16-18 x 2.75 26 710-3008 Hex Cap Screw 5/16-18 x .750 27 710-3097 Carriage Bolt 3/8-16 x 1.0 28 712-0421 Wing Nut 29 736-0169 Lock Washer 3/8 30 712-3004A Flange Nut 5/16-18 31 726-0106 Cap Nut

32 738-0849 Hex Screw 5/16-18 x .75" Lg. 33 747-0432 Rod

REF.

NO. PART NO. DESCRIPTION

34 750-0885 Spacer .435 O.D. x .322 I.D. 35 786-0090 Shoulder 36 786-0113 Tine Shield Hinge Flap 37 786-0176 R.H. Handle Brkt. 38 786-0177 L.H. Handle Brkt. 39 786-0178 Tine Shield 40 786-0179 Tine Shield Brkt. 41 786-0180 Shoulder Spacer Brkt. 42 686-0109 Shift Crank Ass’y 44 710-1017 Screw 1/4-14 x .625 46 715-0120 Spirol Pin 3/16 x 1.00 49 784-0208C Shift Cover 50 711-0415 Clevis Pin 51 712-3054 Hex Nut 3/8-24 Thd. 53 742-0305 13" Dia. Articulating Tine 54 738-0689 Shld. Bolt 1/2" DIa. x .175 55 736-0208 Fl-Wash. .51" I.D. x 1.50" 56 736-0253 Bell-Wash. .515" I.D. x 1.14" 57 738-0688 Shld. Bolt 1/2" Dia x .320 58 784-0160 Tine Adapter Ass’y 18" 59 714-0149B Internal Cotter Pin 60 735-0127 Rubber Washer 61 714-0104 Cotter Pin 62 710-3022 Hex Screw 3/8-16 x 2.75" Lg. 63 736-0204 Flat Washer 64 712-0431 Flange Nut .344 I.D. x .62 O.D. 65 736-0169 Lock Washer 66 712-0798 Hex Nut 3/8-16 67 710-0946 Truss Screw 1/4-20 x .65 68 712-0324 Hex Lock Nut 1/4-20 Gr. 8 69 726-0273 Battery Hose Clamp 5/16 70 736-3090 Flat Washer .260 x .720 x .060

Labels

Ref.

No.

N/I 777S30037 Model Plate N/I 777I20283 Shift Plate Facing Operator N/I 777D02311 Engine Spinner N/I 777D01294 YM, Side of Belt Guard N/I 777I20358 Place Hand Here on Handle N/I 777I20457 Gear Selection on Handle N/I 777D01159 Front Counterweight

Part No. Code Description

MODEL 458

REF.

NO. PART NO. DESCRIPTION

1 686-0111 Belt Cover Brkt. Ass’y 2 710-0237 Hex Bolt 5/16-24 x .62" Lg. 3 710-0412 Hex Bolt 1/4-28 x .75" Lg. 4 710-0502A Hex Wash.TT-Sems Screw 3/8-16 x

1.250" Lg. 5 710-0591 Hex Bolt 3/8-24 x 1.00 6 710-0599 Hex Wash. Hd. S-Tap Scr. 7 710-0723 Hex Cap Screw 3/8-16 x 1.25 8 712-0266 Ctr. Lock Jam Nut 3/8-16 9 712-0267 Hex Nut 5/16-18 10 714-0104 Internal Cotter Pin 11 736-0104 Hairpin Clip 12 736-0119 L-Wash. 5/16" I.D. 13 736-0176 Fl-Wash. 1/4 I.D. x .93 O.D. 14 736-0271 Spring-Wash. .317 x .625 O.D. x .099 15 736-0329 L-Wash. 1/4" I.D. 16 736-0452 Bell-Wash. .396 x 1.140 x .095 17 738-0876 Shld. Nut 7/16-20 18 746-1117 Clutch Cable 19 747-1159 Idler Pulley Rod 20 754-0434 Belt: 4L x 58.16 Lg. 21 756-0405 Fl-Idler w/Flange 3.75" O.D. 22 756-0971 Outer Engine Pulley Half 23 756-0972 Inner Engine Pulley Half 24 756-1162 Input Pulley 25 786-0064A Idler Bracket

REF.

NO. PART NO. DESCRIPTION

26 786-0186 Belt Keeper Brkt. 27 786-0187 Shift Cover Brkt. 28 786-0193 Idler Belt Keeper 29 634-0106 RH Wheel Ass’y Comp. 16.0 x 4.0 634-0107 LH Wheel Ass’y Comp. 16.0 x 4.0

734-0808 Tire Only 16.0 x 4.0 30 634-0108 Wheel Rim Ass’y Comp. 31 734-0255 Air Valve 32 711-1017 Clevis Pin 33 714-0104 Internal Cotter Pin 34 710-0506 Hex Bolt 1/2-13 x 5.00" Lg. 35 712-3066 Hex Nut 1/2-13 Thd. 36 731-1595 Counterweight 37 736-0179 Fl-Wash. .510" I.D. x 1.0" O.D. 38 736-0921 L-Wash. 1/2" Lg. 39 710-0653 Hex Screw 1/4-20 x .375" Lg. 40 710-1017 Screw 1/4-14 x .625" Lg. 41 712-0392 Acorn Lock Nut 42 736-0463 Fl-Washer 1/4 x .620" Lg. 43 784-0158A Belt Cover 44 710-0805 Hex Bolt 5/16-18 x 1.50" Lg. 45 736-0242 Bell-Wash. .340 I.D. x .872 O.D. 46 712-3010 Nut:Hex 5/16-18

737-0298 Oil Drain Tube (Not Shown)

737-0132 End Cap (Not Shown)

Yard-Man Green: 0665

Yard-Man Yellow: 0674

Powder Black: 0637

MANUFACTURER’S LIMITED WARRANTY FOR:

The limited warranty set forth below is given by MTD PRODUCTS INC (“MTD”) with respect to new merchandise purchased and used in the United States, its possessions and territories.

MTD warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in material or workmanship. This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator’s Manual furnished with the product, and has not been subject to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natural disaster. Damage resulting from the installation or use of any accessory or attachment not approved by MTD Products Inc. for use with the product(s) covered by this manual will void your warranty as to any resulting damages.

Normal wear parts or components thereof are subject to separate terms as follows: All normal wear part or component failures will be covered on the product for a period of 90 days regardless of cause. After 90 days, but within the two year period, normal wear part failures will be covered ONLY IF caused by defects in material or workmanship of OTHER component parts. Normal wear parts and components include, but are not limited to, belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow thrower skid shoes, shave plates and tires. Batteries are covered by a 90-day limited replacement warranty.

HOW TO OBTAIN SERVICE: Warranty service is available, WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER. To locate the dealer in your area, please check for a listing in the Yellow Pages or contact the Customer Service Department of MTD PRODUCTS INC by calling 1-800-800-7310 or writing to P.O. Box 368022, Cleveland, Ohio 44136-9722.

This limited warranty does not provide coverage in the following cases:

a. The engine or component parts thereof. These items

carry a separate manufacturer’s warranty. Please refer to the applicable manufacturer’s warranty on these items.

b. Log splitter pumps, valves and cylinders have a sepa-

rate one year warranty.

c. Routine maintenance items such as lubricants, filters,

blade sharpening and tune-ups, or adjustments such as brake adjustments, clutch adjustments or deck adjustments; and normal deterioration of the exterior finish due to use or exposure.

d. MTD does not extend any warranty for products sold

or exported outside of the United States of America, its possessions and territories, except those sold through MTD’s authorized channels of export distribution.

No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified. No other express warranty or guaranty, whether written or oral, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind MTD. During the period of the Warranty, the exclusive remedy is repair or replacement of the product as set forth above. (Some states do not

allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

The provisions as set forth in this Warranty provide the sole and exclusive remedy arising from the sales. MTD shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute or replacement lawn care services, for transportation or for related expenses, or for rental expenses to temporarily replace a warranted product. (Some states do not allow the exclusion or limita-

tion of incidental or consequential damages, so the above exclusion or limitation may not apply to you.)

In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold. Alteration of the safety features of the product shall void this Warranty. You assume the risk and liability for loss, damage, or injury to you and your property and/or to others and their property arising out of the use or misuse or inability to use the product.

This limited warranty shall not extend to anyone other than the original purchaser, original lessee or the person for whom it was purchased as a gift.

How State Law Relates to this Warranty: This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Yard-Man 21A-458B401 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual