Cub Cadet 421R User Manual

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Page 1

Operator’s Manual

Single Stage

Snow Thrower

Model 421R

IMPORTANT: Read safety rules and instructions carefully

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 effe c tive 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 368023 Cleveland, Ohio 44136-9722.

CUB CADET CORP. P.O. BOX 368023 CLEVELAND, OHIO 44136-9722

PRINTED IN U.S.A.

ECO No. 1405

FORM NO.

770-10005B.fm

(6/2000)

Page 2

TABLE OF CONTENTS

Content Page

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

Assembling Your Snow Thrower....................................................................... 5

Know Your Snow Thrower................................................................................. 7

Operating Your Snow Thrower.......................................................................... 8

Making Adjustments.......................................................................................... 9

Maintaining Your Snow Thrower....................................................................... 10

Off-Season Storage .......................................................................................... 11

Troubleshooting................................................................................................ 12

Parts List........................................................................................................... 13

FINDING MODEL NUMBER

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

Before you start assembling your new snow thr ower, ple ase locate t he model pl ate 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 behind the unit in the operating position and looking down at the dash panel . 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.

(Model Number)

(Serial Number)

Copy the model number here:

Copy the serial number here:

CUB CADET CORP.

P.O. BOX 368023

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 Cub Cadet Customer Dealer Referral Line at 1-(800)-528-

1009. Please have your unit’s model number and serial number ready when you call. See previous section to locate this information. By having the model and serial numbers ready, you help your Cub Cadet dealer give you faster service.

For more details about your machine, visit our website at www.cubcadet.com

Page 3

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 this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol— heed its war ning.

WARNING: Engine Exhaust, some of its cons tit uen ts, and certain vehicle components c ontain or emit chemicals

known to State o f Calif ornia to c ause c ancer and bi rth defec ts or othe r reproduct ive harm.

DANGER: This m achine wa s built t o be opera ted acco rding to t he rule s for saf e operatio n in this m anual. As with

any type of power equipmen t, carele ssness or e rror on the part of th e operator can re sult in seri ous inju ry. This machine is capab le of am putating h ands and feet and throwing objects . Failure to observe t he foll owing saf ety instructions co uld resul t in seri ous inju ry or death .

Training

1. Read, understand, a nd follow all in struction s on the

machine and in the manual(s ) before a ttempting to assemble and o perate. Keep this ma nual in a safe pl ace for future and regular re ference a nd for orde ring replacement parts.

2. Be familiar with pro per operat ion of al l controls . Know

how to stop the machine and dis engage c ontrols q uickly.

3. Never allow childre n under 14 y ears to o perate thi s

machine. Children 14 years and ove r should read and understand the op eration in struction s and sa fety rules i n this manual and should be trained and sup ervised b y a parent.

4. Never allow adults to operate this machine without

proper instruction.

5. Thrown objects can cause seriou s personal injury . Plan

your snow throwin g pattern to avoid di scharge of mat erial toward roads, bystanders and the like.

6. Keep bystanders, hel pers, pets and chi ldren at l east 75

feet from the machin e while it is in operatio n. Stop machine if anyo ne enters the area.

7. Exercise caution to avoid s lipping o r falli ng, espe cially

when operating in reverse.

Preparation

1. Thoroughly inspect the area wh ere the eq uipment i s to

be used. Remove all door mat s, newspa pers, sle ds, boards, wires and o ther foreig n object s which c ould be tripped over or throw n by the auger/imp eller.

2. Always wear safet y glasses or eye s hields d uring

operation and while performing an adjustment or repair to protect your eyes. T hrown ob jects whi ch ricochet can cause serious inj ury to the eyes.

3. Do not operate wit hout wearing adequate winter outer

garments. Do not wear jewelry, long scarves or other loose clothing which cou ld becom e entang led in m oving parts. Wear footwear w hich wi ll improve footing on slippery surfaces.

4. Use a grounded three wire ex tension cord and receptac le

for all units with electric start engi nes.

5. Adjust collector housing height to clear gravel or crushed

rock surfaces.

6. Disengage all cl utch levers before st arting the engin e.

7. Never attempt to ma ke any adjustme nts whi le engin e is

running, except where spec ifically recomm ended in the operator’s manual.

8. Let engine and m achine adju st to outd oor tem perature before starting to clear snow.

9. To avoid personal injury or pro perty damage use extre me care in handling gasolin e. Gasol ine is e xtremely flammable and the v apors are explosiv e. Serious personal injury c an occur w hen gas oline is spilled o n yourself or your c lothes which c an ignit e. Wash y our skin and change clot hes immedi ately.

a. Use only an approved gasoline container. b. Extinguish all cigarettes, cig ars, pipes and other

sources of ignition. c. Never fuel machine indoo rs. d. Never remove gas cap or add fue l whil e the

engine is hot or running. e. Allow engine to cool at leas t two minu tes before

refueling. f. Never over fill fuel tank. Fil l tank to no more tha n

½ inch below bottom of fill er neck to provide space

for fuel expansi on. g. Replace gasoli ne cap an d tighten secu rely. h. If gasoline is sp illed, wip e it off th e engine and

equipment. Move machine to another area . Wait 5

minutes before start ing the e ngine. i. Never store the machine or fuel containe r inside

where there is an o pen flam e, spark or pilot l ight

(e.g. furnace, water heater, space heate r, clothes

dryer etc.). j. Allow machine to cool at least 5 mi nutes bef ore

storing.

Operation

1. Do not put hands o r feet near rotating p arts, in the a uger/ impeller housing o r disc harge chu te. Cont act wit h the rotating parts can am putate ha nds and feet.

2. The auger/impelle r clutch lev er is a safety de vice. Nev er bypass its operati on. Doing so, makes the ma chine unsafe and may cause p ersonal i njury.

3. The clutch leve rs must o perate eas ily in both d irections , and automatical ly return to the disengaged pos ition when released.

4. Never operate with a miss ing or da maged di scharge chute. Keep all safe ty devic es in pl ace and working.

5. Never run an engine indoors or in a poorly ven tilated area. Engine exhau st conta ins carb on monox ide, an odorless and dea dly gas .

Page 4

6. Do not operate mac hine while under the influenc e of alcohol or drugs.

7. Muffler and engine beco me hot and can cause a burn. Do not touch.

8. Exercise extreme ca ution when operating on or cro ssing gravel surfaces. Stay alert for hidden hazards or traffic.

9. Exercise caution w hen changi ng directi on and w hile operating on slop es.

10. Plan your snow t hrowing pat tern to av oid disc harge towards windows, wa lls, cars e tc. To avoid prope rty damage or personal injury caus ed by a ricochet.

11. Never direct disc harge at c hildren, b ystander s and pet s or allow anyone in front of t he machi ne.

12. Do not overload machine capa city by attemptin g to clear snow at too fast of a rate.

13. Never operate this machine without good vi sibility or light. Always be s ure of yo ur footing and keep a firm hold on the handles. W alk, never r un.

14. Disengage power to t he aug er/impeller w hen transporting or not in use.

15. Never operate mach ine at hi gh transp ort speeds on slippery surfaces. Look down and b ehind an d use ca re when in reverse.

16. If the machine sh ould start to vi brate abnormally , stop the engine, disconnect the spark plug an d grou nd it agai nst the engine. Inspect thoroughly for dam age. Repair any damage before starting and ope rating.

17. Disengage all cl utch lev ers and st op engin e before y ou leave the operating position (be hind the handles). Wai t until the auger/im peller come s to a complete stop befo re unclogging the d ischarge chute, m aking an y adjustments, or inspecti ons.

18. Never put your hand in the d ischarge or colle ctor openings. Always use a cl earing to ol to unc log the discharge opening.

19. Use only attach ments a nd acce ssories approved by the manufacturer (e.g. wheel weigh ts, tire c hains, cabs etc.) .

20. If situations occur which are not covered in this manua l, use care and good judgment. Cont act your dealer or telephone 1-800-528-10 09 for assistance and the name of your nearest s ervicing dealer.

Maintenance And Storage

1. Never tamper with sa fety devic es. Check their prop er operation regularly.

2. Disengage all cl utch lev ers and stop engine. Wait u ntil the auger/impelle r come to a complet e stop . Disconn ect the spark plug wir e and ground aga inst the engine to prevent unintended s tarting before cleaning, r epairing, or inspecting.

3. Check bolts, and sc rews for pro per tightn ess at fre quent intervals to keep the machine in sa fe working conditio n. Also, visually inspect mach ine for an y damage .

4. Do not change the engine governo r setting or over-speed the engine. The go vernor co ntrols th e maxim um safe operating speed o f the engi ne.

5. Snow thrower shave plate s and skid shoe s are subjec t to wear and damage. F or your sa fety prote ction, fre quently check all compon ents a nd replace with orig inal equipment manuf acturer’s (O.E.M. ) parts on ly. “Us e of parts which do not meet the original equipment specifications ma y lead t o imprope r performan ce and compromise safety!”

6. Check clutch controls periodically to verify they engage and disengage proper ly and adjust, if necessary. Re fer to the adjustment sec tion in th is opera tor’s manual for instructions.

7. Maintain or replace safety and instruction labels, as necessary.

8. Observe proper disp osal laws and regu lations for gas, oil, etc. to protect t he enviro nment.

9. Prior to storing, run machine a few minutes to clear snow from machine an d prevent freeze up of auger/i mpeller.

10. Never store the machine or fuel cont ainer inside whe re there is an open flame, s park or pilot light such as a water heater, furnace ,cloth es dryer etc.

11. Always refer to the o perator’s manual f or prope r instructions on off-sea son storage.

Your Responsibility:

• Restrict the use of this powe r machine to persons who read, understand a nd follow the warning s and instructions in this ma nual and on the ma chine .

Page 5

SECTION 2: ASSEMBLING YOUR SNOW THROWER

Unpacking From Carton

• Cut along corners of the carton and lay it down flat. See Figure 1. Remove packing material.

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

• Roll unit out of carton. Check carton thoroughly for any remaining loose part.

Remove loose parts

Roll unit out

Figure 1

Hardware Pack

1. Ignition Keys* (2)

*One key may be in the switch on snow thrower.

(Items 2 to 5 are illustrated in Figure 2.)

2. Eyebolt

3. Saddle Washer 5/16" I.D.

4. Hex Nuts 5/16-18 Thread (2)

5. Cotter Pin

Eye Bolt

Saddle Wash er

Hex Nut

Cotter Pin

Before Assembly

WARNING: Disconnect the sp ark plug wire

and ground it against the engine to prevent unintended starting.

Raising Upper Handle

• Loosen the hand knob on each side of the handle. Remove packing material, if any.

Raise handle to here

Hand Knob

Figure 3

• Raise the upper handle in the direction shown in Figure 3 till it clicks into the operating position. Make sure not to pinch or crimp the cable.

• Tighten the hand knobs.

Attaching Control Cable

The control cable may already be attached to the control handle. If not attached, complete the following steps to attach it to the snow thrower housing.

• Route the control cable over the lower handle. Insert the end of the cable into the hole in the control housing as shown in Figure 4. Push the plastic fitting until it locks into the control housing.

Figure 2: Hardware Pack

Items Required F or Assembly

1. Pair of pliers (not necessary, but helpful)

2. Two cycle engine oil (included)

3. Fresh gasoline

NOTE: All refere nces to left or right side of the snow thrower is from the operating position only.

Bottom Hole In Control Handle

Control Housing

“Z” End of Cable

Figure 4

Plastic Fitting

Page 6

• Lift the control handle up, and hook the “Z” end of the contro l cable i nto th e bottom hole in the control handle, from the outside to the inside . If necessary, pull up on the end of the cable with a pair of pliers to obtain slac k in order to ho ok it into the control handle. Hold the “Z” fitting with the pliers, not the cable, to avoid damaging the cable.

NOTE: The upper hole in th e control handle provides for adjustment in belt tension. Refer to page 9 of this manual for instructions.

Installing Chute Crank

• Thread one 5/16” hex nut all the way onto the eyebolt. See Figure 5. All necessary hardware is included in the hardware pack shipped with your unit. See Figure 2 for more details.

• Slide the eyebolt onto the chute crank. Insert eyebolt into the hole in the lower handle.

Chute Crank

Eye Bolt

• Secure eyebolt with 5/16” saddle washer and hex nut. The cupped side of washer goes against the handle. Adjust lower hex nut until the eyebolt is positioned so that the chute crank turns freely (does not bind).

• Move upper hex nut down against the lower handle. Tighten lower hex nut securely.

Assembling Discharge Ch ute

The snow thrower has been shipped with the upper chute pivoted all the way down. Assemble as follows:

• Turn the chute crank until the chute faces straight to the front. See Figure 7.

Flat

Hand Knob

Front

Washer

Carriage

Bolt

Hex Nuts

Saddle Wash er

Figure 5

• Insert the chute crank into the coupler at the top right side of the snow thrower. See Figure 6.

• Rotate the crank to align holes, and insert the cotter pin. Bend ends of cotter pin in opposite directions to secure. See Figure 6.

Cotter Pin

Chute Crank

Coupler

Upper Chute

Figure 7

• Remove the hand knob, flat washer and carriage bolt from the upper chute. See Figure 7.

• Pivot the upper chute up so that there is no gap between the upper and the lower chute. See Figure

8. Secure with hardware just removed.

Gap

Pivot upper

chute

Figure 6

Figure 8

Page 7

SECTION 3: KNOW YOUR SNOW THROWER

Be familiar with all the controls and their proper operation. Know how to stop the machine and disengage them quickly.

• Compare Figure 9 with the controls on your snow thrower before starting the machine or trying to operate it.

Discharge Chute

Chute Crank

Shave Plate

Auger Control Handle

Auger

Upper Handle

Spark

Plug

Cover

Primer Button

Choke Lever Off

Ignition Key

Starter Handle

Figure 9

Choke Lever

Place choke lever in “ON” position to start a cold engine.

Primer Button

Used to inject fuel directly into the carburetor to insure fast starts in cold weather. Follow engine manual to prime engine.

Ignition Key

Used to start engine. Put key in “ON” position to start.

Starter Handle

Used to manually start the engine.

Spark Plug Cover

Spark plug located under the cover.

Auger Control Handle

Located on the upper handle, the auger control handle is used to engage and disengage the augers. The snow thrower is designed to be propelled by the rotation of the augers. Pull the control handle back against the

upper handle to engage the augers; release to disengage.

Chute Crank

Located on right side of dash panel, the chute crank determines the direction that snow will be discharged. Turn clockwise to discharge snow to the left; turn counterclockwise to discharge to the right.

Discharge Chute

The angle of the discharge chute controls the distance that the snow is thrown. Tilt the discharge chute up for greater distance; tilt down for less distance. Loosen the hand knob on the side of the discharge chute to adjust. Tilt the chute to the desired position, and tighten the knob.

Stopping Engine

• Turn ignition key to OFF position and remove it from the snow thrower.

Page 8

SECTION 4: OPERATING YOUR SNOW THROWER

Before Starting

WARNING: Read, understand, and follow

all instructions an d warnings on the machine and in this manual before operating.

• The spark plug wire was disconnected for safety purposes during assembly. Attach spark plug wire to spark plug before starting.

Fuel & Oil Mixture

WARNING: Use extreme care when

handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes and other sources of ignition.

Your snow thrower uses a two cycle engine that requires a mixture of gasoline and two cycle engine oil. Refer to the engine operator’s manua l for proper oil and fuel recommendations.

• A plas tic cup was provided inside the fuel fill opening on the fuel tank. Remove and discard this cup before filling up the tank. Use the seperate fuel tank cap to close after fill-up.

Starting Engine

• To start the engine of your snow thrower, follow the engine manual.

Operating Snow Thrower

Hand Knob

Figure 10

• Adjust the upper discharge chute up or down as shown in Figure 10. Then use the chute crank to position the discharge chute in order to discharge snow with the wind.

Upper Discharge Chute

• After making sure no bystanders or obstacles are in front of the unit, engage the auger control handle. See Figure 11. As the snow thrower starts to move, maintain a firm hold on the handle, and guide the snow thrower along the path to be cleared.

• Release the auger control handle to stop the snow throwing action and the forward motion.

Press auger control handle to engage auger

Turn handle to change discharge direction

Figure 11

Stopping Engine

• Run the engine for a few minutes before stopping to help dry any moisture on the engine.

• To stop engine: Turn ignition key to OFF position and remove it from the snow thrower.

IMPORT ANT :

Engine will not start without it.

• Wipe all snow and moisture from the unit. Move the choke lever back and forth several times and leave it in the ON position.

Keep the ignition key in a safe place.

Operating Tips

• Discharge snow downwind whenever possible. Slightly overlap each previously cleared path.

• Lifting up on the handle will allow the rubber on the augers to propel the snow thrower forward. Pushing downward on the handle will raise the augers off the ground and stop the forward motion.

NOTE: Excessive upward pressure on the handle will result in premature wear on the rubber auger blades which would not be covered by warranty.

• Run the engine for a few minutes before stopping to help dry any moisture on the engine.

• Clean the snow thrower thoroughly after each use.

WARNING: Muffler, engine and surrounding

areas become hot and ca n cause a burn. Do not touch.

Page 9

SECTION 5: MAKING ADJUSTMENTS

WARNING: NEVER attempt to make any

adjustments while the eng ine is running, except where specified i n the ope rator’s manual .

Shave Plate

• To check the adjustment of the shave plate, place the unit on a leve l surface. See Figure 12. The wheels, shave plate and augers should all contact level surface. Note that if the shave plate is adjusted too high, snow may blow under the housing. If the shave plate wears out excessively, or the unit will not self-propel, the shave plate may be adjusted too low.

NOTE: On new units or units with a new shave plate installed, the augers may be slightly off the ground.

Augers

• To adjust, tip the snow thrower back so that it rests on the handle. Loosen the lock nuts and bolts which secure the shave plate to the housing. See Figure

13. Move the shave plate to desired position and retighten the nuts and bolts. Make certain all nuts and bolts are tightened securely.

Shave Plate

Figure 12

Wheels

Belt Tension

Periodic adjustment of the belt tension may be required due to normal stretch and wear on the belt. If augers hesitate while turning although engine maintains same speed, adjust tension following instructions below.

• The upper hole in the control handle provides adjustment for belt tension. To adjust, disconnect the “Z” end of control cable from the bottom hole in the control handle. See Figure 14 . Hook the cable into the upper hole in control handle as shown here.

Upper

Hole

Clutch Cable

Control

Housing

Figure 14

If additional adjustment is required, follow steps below.

• Remove the belt cover by removing five hex screws that hold it in place. See Figure 16.

• There are three adjustment holes provided in the idler bracket assembly. See Figure 15. To adjust, move the extension spring on the end of the clutch cable to the next higher adjustment position on the idler bracket assembly. Reassemble belt cover.

High Position

Idler

Bracket

Middle Position

Spring on

End of Clutch

Auger

Pulley

Low Position

Cable

Nuts & Bolts

Figure 13

Figure 15

Carburetor

WARNING: If any adjustments need to be

made to the engine while the engine is running (e.g. carburetor), keep clear of all moving parts. Be careful of muffler, engine and other surrounding heated surfaces.

• Refer to the separate engine manual, packed with your unit, for carburetor adjustment information.

Page 10

SECTION 6: MAINTAINING YOUR SNOW THROWER

WARNING: Before servici ng, repairing, or

inspecting, disengage all clutch levers and stop engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it aga inst the engi ne to prevent unintended starting.

General Recommendations

• Always observe safety rules when performing any maintenance.

• All adjustments explained on page 9 should be checked at least once each season.

• Periodically check all fasteners and make sure these are t ight

• Follow the maintenance schedule given below to get quality performance from your snow thrower for a long time.

Replacing Belt

• Remove t he belt cover b y remo ving fi ve hex screws. See Figure 16.

Belt Cover

Figure 16

Hex

Screws

• Pull up on the idler pulley and slip the belt off the engine pulley.

• Push down on the idler pulley and slip the belt off the auger pulley.

• Reassemble new belt. See Figure 17.

• Reinstall the belt cover.

Idler Pull ey

Engine

Auger

Pulley

Belt

Figure 17

Replacing Sha ve Plate

The shave plate is subject to wear. It should be checked periodically. There are two wearing edges and the shave plate can be reversed. See Figure 13.

• Remove the four carriage bolts and hex lock nuts which attach it to the snow thrower housing.

• Install new shave plate, making sure the heads of the carriage bolts are on the inside of the housing.

• Adjust the shave plate according to procedure in the “Making Adjustments” section of this manu al.

• Tighten securely.

Customer Responsibilities

MAINTENANCE SCHEDULE

Lubricate pivot points

C U

Clean snow throwe r

D O

Check shave plate

R P

Check belt

E N

Clean engine

G N E

Check spark plug

SERVICE DATES

Page 11

Lubrication

• Lubricate pivot points on the control handle and the extension spring at the end of the clutch cable with a light oil once every season and before storage of the snow thrower at the end of the season.

SECTION 7: OFF-SEASON STORAGE

Engine

• Refer to the separate engine operator’s manual packed with your snow thrower for all engine maintenance procedures.

• Check engine and snow thrower frequently for loose hardware, and tighten as needed.

WARNING: Never store engine with fuel in

tank indoors or in enclos ed, poor ly ven tilated areas where fuel fumes may reach an open flame, spark or pilot light as on a furnace, water heater, clothes dryer, or other gas appliance.

• Clean snow thrower thoroughly.

• Lubricate as instructed above with a light oil.

• Follow “Storage” instructions in the Engine Manual.

• Store in a clean, dry area. Block the snow thrower

up so it is not resting on the rubber auger blades.

NOTE: When storing any type of power equipment in an poorly ventilated or metal storage shed, care should be taken to rustproof the equipment, especially springs, cables and all moving parts.

Page 12

SECTION 8: TROUBLESHOOTING GUIDE

Problem Cause Remedy

Engine fails to star t 1. Fuel tank empty, o r stale fuel

2. Blocked fuel lin e

3. Key not in ON position

4. Spark plug wire disconnected

5. Faulty spark plug

6. Gasoline and oil not mix ed corr ectly

Engine runs erratic 1. Unit running on choke

2. Fuel line blocked , or sta le fuel

3. Water or dirt in fuel system

4. Carburetor out of adjustment

Engine overheats 1. Gasoline and oil not mix ed correct ly

2. Carburetor out of adjustment

Loss of power 1. Spark plug wire loose

2. Vent in gas cap plu gged

3. Exhaust port plugged .

Excessive vibration 1. Loose parts or da maged au ger 1. Stop engine imme diately and disc onnect

Unit fails to self-p ropel 1. Drive cable out of ad justment

2. Drive belt loose or damage d

Unit fails to discharge snow

1. Discharge chute clogged

2. Foreign object lodged in aug er

3. Drive cable not adjusted properly

4. Drive belt loose or damage d

1. Fill tank with clean fresh gasoline/oil mixture as specif ied in th e engi ne manua l.

2. Clean fuel line

3. Insert key and turn to ON pos ition

4. Connect wire to spark plug.

5. Clean spark plug, readjust gap, or replace.

6. Refer to engine manual

1. Move choke lever to off position.

2. Clean fuel line and fill tank with fresh, clean gasoline.

3. Refer to engine manual o n remedy .

4. Refer to engine manual.

1. Drain fuel tank an d refill wi th proper fu el mixture.

2. Refer to engine manual.

1. Connect and tighten spark plug wire.

2. Clear vent.

3. Clean port.

spark plug wire. Check for possible damage. Tighten all bolts and nuts. Repair as needed. If the problem persists, take unit to an authori zed servic e dealer.

1. Adjust drive cabl e following instructi ons on snow thrower.

2. Replace drive cable follo wing instruct ions on snow thrower.

1. Stop engine imme diately and disc onnect spark plug wir e. Clean discharge chute and the auger housing.

2. Stop engine imme diately and disc onnect spark plug wire. Remove object .

3. Adjust drive cabl e following instructi ons on snow thrower.

4. Replace drive belt followin g instructions on snow thrower.

NOTE: For repairs beyond the minor adjustments listed above, call the Customer Dealer Line at 1-800-528-1009 for the dealer nearest you. Refer to separate engine manual, packed with your snow thrower, for engine information.

Page 13

SECTION 9: PARTS LIST FOR MODEL 421R

Ref. No. Part No. Description

710-0487 Carriage Screw

710-1270 Oval C-Sunk Machine Screw

712-0324 Hex Lock Nut

720-0284 Wing Nut

720-0295 Foam Grip: Handl e

725-0157 Cable Tie

736-0451 Saddle Washer

746-0883 Cable Housing w/o Throt tle

747-0956 Auger Bail: Gull Win g

749-0711A Upper Hand le: Gull Wing

10.

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 Cub Yellow , the part number to order would be 700-xxx x-0716.

Cub Yellow: 0716

Cub Beige: 0499

Cub Blue: 0685

Powder Black: 0637

Page 14

SECTION 10: Model 421R

4542

Page 15

Model 421R

Ref. No. Part No. Part Description

10.

11.

12.

13.

15.

16.

17.

18.

19.

20.

21.

22.

23.

710-0167 Carriage Bolt 710-0276 Carriage Bolt 710-0323 Pan Head Screw 710-0451 Carriage Bolt 710-0642 Hex Washer Screw 710-1005 Hex Washer Screw 710-0773 Hex Washer Screw 710-0896 Hex Washer Screw 710-3015 Hex Cap Screw

711-0848A Axle

712-0429 Hex Center Lock Nut 712-3010 Hex Nut 712-0116 Hex Lock Nut 712-3027 Hex Lock Flanged Nut

720-0284 Knob 731-0851A Chute Keeper 731-0915B Lower Chute

731-0921 Upper Chute

731-1033 Shave Plate 732-0357A Extension Spring

736-0108 Flat Washer

736-0119 Lock Washer

Ref. No. Part No. Part Description

25.

26.

27.

28.

30.

31.

32.

33.

34.

35.

36.

37.

38.

39.

40.

41.

42.

43.

44.

45.

46.

736-0176 Flat Washer 736-0159 Washer 736-0326 Flat Washer 736-0329 Lock Washer 741-0600 Ball Bearing

746-0910A Cable—Clutch

748-0234 Spacer 749-0796 Handle—Lower 756-0313 Flat Idler 784-5174 Bearing Cup 784-5176 Cover—Belt

784-5175B Idler/Brake Bracket

684-0114 Blower Housing 784-5485 Auger Ass’y. Comp. 753-0613 Auger Rubber Replacem ent 710-0352 Hex Washer Screw 784-5720 Crank Bracket 710-0451 Cap Screw 736-0242 Bell Washer 741-0475 Bushing 710-0191 Hex Screw

Ref. No. Part No. Description

1 734-1811 Wheel Assembly: 7 x 1.7”

NOTE: For painted part s, 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 Cub Yellow, the part number to order would be 700-xxxx-0716.

Cub Yellow: 0716

Cub Beige: 0499

Cub Blue: 0685

Powder Black: 0637

Page 16

Model 421R

21 26

Page 17

Model 421R

Ref. No. Part No. Part Description

684-0054A Dash Assembly

684-0126 Chute Crank Assembly

710-1003 Special Screw: 310-16 x 0.375”

710-1090 Hex Flange Screw 5/16-18 x 1.25”

710-1268 Special screw

710-1652 Self-Tapping Screw 1/4-20 x .625”

712-3010 Hex Nut 5/16-18

714-0104 Hairpin Clip

714-0507 Cotter Pin

715-0138 Roll Pin

10.

720-0201A Chute Crank Knob

11.

725-0201 Ignition Key

12.

725-1341B Ignition Key w/o Logo

13.

725-1346 Ignition Switch Nut

14.

725-1347 Ignition Switch Cap

15.

725-1425 Switch: Key, Recoil Start

16.

726-0100 Push Cap

17.

731-1089A Choke Cover

18.

731-1133B Spilling Cup

19.

731-2109 Shroud: 21” Beige

20.

735-0234 Rubber Grommet

21.

736-0119 Lock Washer

22.

736-0185 Flat Washer

23.

736-0225 Internal Lock Washer

24.

736-0451 Saddle Washer

25.

747-0697 Eyebolt

26.

747-0737 Upper Chute Crank

27.

750-0785 Spacer

28.

7510009636 Mitten Grip Handle

29.

Cub Yellow: 0716

Cub Beige: 0499

Cub Blue: 0685

Powder Black: 0637

Page 18

Model 421R

Ref. No Part No. Description

705-5139A Support Bracket: Gas Tank

710-0157 Hex Bolt 5/16-24 x .75”

710-1652 Self-Tapping Screw

710-3013 Hex Screw 1/4-20 x .50”

710-3025 Hex Screw

726-0205 Hose Clamp

731-2113A Cup

736-0119 Lock Washer

736-0242 Beleville Washer

736-0329 Lock Washer

10.

741-0475 Plastic Bushing

11.

751-0535 Fuel Line Hose

12.

751-0540A Fuel Tank: 2 Quart

13.

751-0800 Fuel Cap

14.

754-0101A V-Belt

15.

756-0416B V-Pulley Half

16.

756-0475 V-Pulley Half

17.

Cub Yellow: 0716

Cub Beige: 0499

Cub Blue: 0685

Powder Black: 0637

Page 19

Model 421R

Page 20

MANUFACTURER’S LIMITED WARRANTY FOR:

TWO-YEAR RESIDENTIAL ONE-YEAR COMMERCIAL

Proper maintenance of your Cub Cad et equi pm ent is the own er’s responsibility. Follow the instructions in your operator’s manual for correct lubricants and maintenance schedule. Your Cub Cadet dealer carries a complete line of quality lubricants and filters for your equipment’s engine, transmission, chassis and attachments.

Riding mowers, lawn tractors, garden tractors, Cub Cadet

attachments and home maintenance products

This limited warra nty for residential users, covers a ny defect in mater ials or workmansh ip in your Cub Cadet equipment for two years from the dat e of purchase for the firs t user purchase r. We will replace or repa ir any part or parts without charge through your authorized Cub Cadet dealer.

Batteries have a one-year prorated limited warranty with 100% replacement during the first three months. V-belts for either the traction drive or any attachments are covered for one year only. Cub Cadet equipment used commercially is warranted for one year only. (Commercial use is defined as either having hired operators or used for income producing purposes.)

Items not covered

The warranty doe s not c over rout ine ma intena nce i tems suc h as lubri cants, f ilt ers (o il, fue l, air a nd h ydraul ic), cleaning, tune-ups, br ake and/or clutch inspection, a djustments made as part of normal maintenance, blade sharpening, set-up, a bus e, a ccid ent s and normal wear. It doe s n ot c over in ci den tal cos ts suc h as trans po rti ng your equipment to and from the dealer, telephone charges or renting a product temporarily to replace a warranted product.

There is no other express warranty.

How to obtain service

Contact your autho riz ed Cub Ca det s ervi cing de ale r who s old you your Cub Ca det eq uip men t. I f th is d eal er i s not available, see the Consumer Yellow Pages under “lawn mowers” for the name of a dealer near you.

If you need further assistance in finding an authorized Cub Cadet servicing dealer, contact:

Cub Cadet Corporation Post Office Box 368023

Cleveland, Ohio 44136

How does state law apply?

This limited warranty gi ves y ou spec ific lega l rig hts, and you m ay als o have ot her right s which va ry from s tate to state.