Cub Cadet Snow Blower 721E User Manual

Operator’s Manual  
Single Stage  
Snow Thrower  
Model 721E  
IMPORTANT: Read safety rules and instructions carefully before operating equipment.  
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-  
covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting  
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.  
In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have  
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized  
service dealer or contact the service department, P.O. Box 368023 Cleveland, Ohio 44136-9722.  
CUB CADET CORP. P.O. BOX 368023 CLEVELAND, OHIO 44136-9722  
770-10542  
7/11/01  
PRINTED IN U.S.A.  
FORM NO.  
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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 warning.  
WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain or emit  
chemicals known to State of California to cause cancer and birth defects or other reproductive harm.  
DANGER: This machine 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 machine is capable  
of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in  
serious injury or death.  
6. Disengage all clutch levers before starting the engine.  
Training  
7. Never attempt to make any adjustments while engine is  
1. Read, understand, and follow all instructions on the  
running, except where specifically recommended in the  
machine and in the manual(s) before attempting to  
operator’s manual.  
assemble and operate. Keep this manual in a safe place  
8. Let engine and machine adjust to outdoor temperature  
for future and regular reference and for ordering  
replacement parts.  
2. Be familiar with all controls and their proper operation.  
before starting to clear snow.  
9. To avoid personal injury or property damage use extreme  
care in handling gasoline. Gasoline is extremely  
Know how to stop the machine and disengage them  
flammable and the vapors are explosive. Serious  
quickly.  
personal injury can occur when gasoline is spilled on  
3. Never allow children under 14 years old to operate this  
yourself or your clothes which can ignite. Wash your skin  
machine. Children 14 years old and over should read and  
and change clothes immediately.  
understand the operation instructions and safety rules in  
a. Use only an approved gasoline container.  
this manual and should be trained and supervised by a  
parent.  
4. Never allow adults to operate this machine without  
proper instruction.  
5. Thrown objects can cause serious personal injury. Plan  
b. Extinguish all cigarettes, cigars, pipes and other  
sources of ignition.  
c. Never fuel machine indoors.  
d. Never remove gas cap or add fuel while the  
engine is hot or running.  
your snow throwing pattern to avoid discharge of material  
e. Allow engine to cool at least two minutes before  
toward roads, bystanders and the like.  
refueling.  
6. Keep bystanders, helpers, pets and children at least 75  
f. Never over fill fuel tank. Fill tank to no more than  
feet from the machine while it is in operation. Stop  
½ inch below bottom of filler neck to provide space  
machine if anyone enters the area.  
for fuel expansion.  
7. Exercise caution to avoid slipping or falling, especially  
g. Replace gasoline cap and tighten securely.  
h. If gasoline is spilled, wipe it off the engine and  
when operating in reverse.  
equipment. Move machine to another area. Wait 5  
minutes before starting the engine.  
Preparation  
i. Never store the machine or fuel container inside  
1. Thoroughly inspect the area where the equipment is to  
where there is an open flame, spark or pilot light  
be used. Remove all door mats, newspapers, sleds,  
(e.g. furnace, water heater, space heater, clothes  
boards, wires and other objects which could be tripped  
dryer etc.).  
j. Allow machine to cool at least 5 minutes before  
2. Always wear safety glasses or eye shields during  
storing.  
over or thrown by the auger/impeller.  
operation and while performing an adjustment or repair to  
protect your eyes. Thrown objects which ricochet can  
Operation  
cause serious injury to the eyes.  
3. Do not operate without wearing adequate winter outer  
1. Do not put hands or feet near rotating parts, in the auger/  
garments. Do not wear jewelry, long scarves or other  
impeller housing or discharge chute. Contact with  
loose clothing which could become entangled in moving  
rotating parts can amputate hands and feet.  
parts. Wear footwear which will improve footing on  
slippery surfaces.  
2. The auger/impeller clutch lever is a safety device. Never  
bypass its operation. Doing so, makes the machine  
4. Use a grounded three wire extension cord and receptacle  
unsafe and may cause personal injury.  
for all units with electric start engines.  
5. Adjust collector housing height to clear gravel or crushed  
3. The clutch levers must operate easily in both directions  
and automatically return to the disengaged position when  
rock surfaces.  
released.  
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4. Never operate with a missing or damaged discharge  
chute. Keep all safety devices in place and working.  
5. Never run an engine indoors or in a poorly ventilated  
area. Engine exhaust contains carbon monoxide, an  
odorless and deadly gas.  
6. Do not operate machine while under the influence of  
alcohol or drugs.  
7. Muffler and engine become hot and can cause a burn. Do  
not touch.  
Maintenance And Storage  
1. Never tamper with safety devices. Check their proper  
operation regularly.  
2. Disengage all clutch levers and stop engine. Wait until  
the auger/impeller come to a complete stop. Disconnect  
the spark plug wire and ground against the engine to  
prevent unintended starting before cleaning, repairing, or  
inspecting.  
3. Check bolts, and screws for proper tightness at frequent  
intervals to keep the machine in safe working condition.  
Also, visually inspect machine for any damage.  
4. Do not change the engine governor setting or over-speed  
the engine. The governor controls the maximum safe  
operating speed of the engine.  
5. Snow thrower shave plates and skid shoes are subject to  
wear and damage. For your safety protection, frequently  
check all components and replace with original  
equipment manufacturer’s (O.E.M.) parts only. “Use of  
parts which do not meet the original equipment  
specifications may lead to improper performance and  
compromise safety!”  
6. Check clutch controls periodically to verify they engage  
and disengage properly and adjust, if necessary. Refer to  
the adjustment section in this operator’s manual for  
instructions.  
7. Maintain or replace safety and instruction labels, as  
necessary.  
8. Exercise extreme caution when operating on or crossing  
gravel surfaces. Stay alert for hidden hazards or traffic.  
9. Exercise caution when changing direction and while  
operating on slopes.  
10. Plan your snow throwing pattern to avoid discharge  
towards windows, walls, cars etc. To avoid property  
damage or personal injury caused by a ricochet.  
11. Never direct discharge at children, bystanders and pets  
or allow anyone in front of the machine.  
12. Do not overload machine capacity by attempting to clear  
snow at too fast of a rate.  
13. Never operate this machine without good visibility or  
light. Always be sure of your footing and keep a firm hold  
on the handles. Walk, never run.  
14. Disengage power to the auger/impeller when  
transporting or not in use.  
15. Never operate machine at high transport speeds on  
slippery surfaces. Look down and behind and use care  
when in reverse.  
16. If the machine should start to vibrate abnormally, stop the  
engine, disconnect the spark plug and ground it against  
the engine. Inspect thoroughly for damage. Repair any  
damage before starting and operating.  
17. Disengage all clutch levers and stop engine before you  
leave the operating position (behind the handles). Wait  
until the auger/impeller comes to a complete stop before  
unclogging the discharge chute, making any  
adjustments, or inspections.  
8. Observe proper disposal laws and regulations for gas,  
oil, etc. to protect the environment.  
9. Prior to storing, run machine a few minutes to clear snow  
from machine and prevent freeze up of auger/impeller.  
10. Never store the machine or fuel container inside where  
there is an open flame, spark or pilot light such as a water  
heater, furnace ,clothes dryer etc.  
11. Always refer to the operator’s manual for proper  
instructions on off-season storage.  
18. Never put your hand in the discharge or collector  
openings. Always use a clearing tool to unclog the  
discharge opening.  
Your Responsibility:  
19. Use only attachments and accessories approved by the  
manufacturer (e.g. wheel weights, tire chains, cabs etc.).  
20. If situations occur which are not covered in this manual,  
use care and good judgment. Contact your dealer or  
telephone 1-800-528-1009 for assistance and the name  
of your nearest servicing dealer.  
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.  
A N D C L O T H I N G A W A Y .  
K E E P H A N D S , F E E T  
R O T A T I N G A U G E R -  
A V O I D I N J U R Y F R O M  
DANGER  
1.  
KEEP AWAY FROM ROTATING AUGER  
CONTACT WITH AUGER CAN AMPUTATE  
HANDS AND FEET.  
2. DISENGAGE CLUTCH LEVERS, STOP ENGINE,  
AND REMAIN BEHIND HANDLES UNTIL ALL  
MOVING PARTS HAVE STOPPED BEFORE  
UNCLOGGING OR SERVICING MACHINE.  
3. TO AVOID THROWN OBJECTS INJURIES,  
NEVER DIRECT DISCHARGE AT BYSTANDERS.  
USE EXTRA CAUTION WHEN OPERATING ON  
GRAVEL SURFACES.  
NEVER PUT HAND IN CHUTE. CONTACT WITH  
ROTATING PARTS CAN AMPUTATE FINGERS  
AND HANDS.  
DO NOT UNCLOG DISCHARGE CHUTE WHILE  
ENGINE IS RUNNING.  
SHUT OFF ENGINE AND REMAIN BEHIND  
HANDLES UNTIL ALL MOVING PARTS HAVE  
STOPPED BEFORE UNCLOGGING.  
4. READ OPERATOR'S MANUAL.  
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SECTION 2: ASSEMBLING YOUR SNOW THROWER  
Remove the hairpin clip from the end of the lower  
chute crank.  
Insert the upper chute crank into the lower chute  
crank and align the holes.  
Re-insert the hairpin clip into the hole to secure the  
two chute cranks. See Figure 2.  
Unpacking From Carton  
Cut along corners of the carton and lay it down flat.  
Remove packing material.  
Remove any loose parts included with unit (i.e.,  
operators manual, etc.).  
Roll unit out of carton. Check carton thoroughly for  
any remaining loose part.  
Items Required For Assembly  
1. Pair of pliers  
2. Engine oil  
3. Fresh gasoline  
NOTE: All references to left or right side of the snow  
thrower is from the operating position only.  
Upper Chute  
Crank  
Hairpin Clip  
Before Assembly  
Lower Chute  
Crank  
WARNING: Disconnect the spark plug wire  
and ground it against the engine to prevent  
unintended starting. See Figure 1.  
NOTE: For clarity  
of viewing, the  
control handle is  
removed from the  
picture. Do not  
Raising Upper Handle  
remove it for the task.  
Loosen the hand knob on each side of the handle.  
Remove packing material, if any.  
Figure 2  
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 3. Push the  
plastic fitting until it locks into the control housing.  
Hand Knob  
Hand Knob  
“Z” End  
Bottom  
of Cable  
Hole In  
Spark Plug  
Access  
Control  
Handle  
Figure 1  
Control  
Raise the upper handle in the direction shown in  
Figure 1 until it clicks into the operating position.  
Make sure not to pinch or crimp the cable.  
Tighten the hand knobs.  
Plastic  
Fitting  
Housing  
Figure 3  
Attaching Chute Crank  
Lift the control handle up, and hook the Zend of  
the control cable into the 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 slack in order to hook it into the control  
The lower chute crank is already attached to your snow  
thrower at the factory. For shipping purposes, the upper  
chute crank is packaged as loose part. Attach it to the  
lower chute crank following instructions:  
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handle. Hold the Zfitting with the pliers, not the  
cable, to avoid damaging the cable.  
Lower Chute  
Nut  
NOTE: The upper hole in the control handle provides  
for adjustment in belt tension. Refer to page 9 of this  
manual for instructions.  
Carriage  
Bolt  
Flat  
Washer  
Flat  
Washer  
Assembling Discharge Chute  
Hex Bolt  
Turn the chute crank until the chute faces straight  
to the front. See Figure 4 .  
Remove the hand knob, flat washer and carriage  
bolt from the upper chute. See Figure 4.  
Pivot the upper chute up and over the lip of the  
lower chute. This will eliminate any gap between  
the upper and the lower chutes. Secure with  
hardware just removed.  
Upper  
Chute  
Hand  
Knob  
Figure 4  
SECTION 3: KNOW YOUR SNOW THROWER  
WARNING: Be familiar with all the controls on the snow thrower and their proper operation. Know how to  
stop the machine and disengage them quickly.  
Auger Control Handle  
Recoil Starter  
Chute Crank  
Primer  
Key  
Electric Starter  
Gasoline Cap  
Spark Plug Access  
Discharge Chute  
Oil Fill Plug  
Choke Lever  
Off  
On  
Auger  
Shave Plate  
Figure 5  
Chute Crank  
Auger Control Handle  
Located on the upper handle, the auger control handle  
is used to engage and disengage the auger. The snow  
thrower is designed to propell by the rotation of the  
auger. Pull the control handle back against the upper  
handle to engage the auger; release to disengage.  
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.  
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Discharge Chute  
Ignition Key  
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.  
Used to start engine. Put key in ONposition to start  
for both electric and recoil start engines. Follow starting  
instructions given in the next section.  
Recoil Starter  
Used to manually start the engine.  
Electric Starter  
Used to start engine with a 120V power source.  
Choke Lever  
Place choke lever in ONposition to start a cold  
engine. This lever is located near the throttle housing  
on the engine. See Figure 5 inset.  
Plug for Electric Start  
Requires use of a three-prong outdoor extension cord  
and a 120V power source.  
Primer Button  
Spark Plug Access  
Spark plug located under the access cover.  
Used to inject fuel directly into the carburetor to insure  
fast starts in cold weather. Follow engine manual to  
prime engine.  
SECTION 4: OPERATING YOUR SNOW THROWER  
Before Starting  
Press auger  
control handle  
to engage  
auger  
WARNING: Read, understand, and follow all  
instructions and warnings on the machine and  
in this manual before operating.  
Turn handle  
The spark plug wire was disconnected for safety.  
Attach spark plug wire to spark plug before starting.  
to change  
discharge  
direction  
Recoil  
Starter  
Primer  
Key  
Gas and Oil Fill-Up  
Check oil and gasoline level and add if necessary.  
Follow related instructions in the seperate engine  
manual packed with your snow thrower.  
Electric  
Starter  
Choke  
Lever  
WARNING: Use extreme care when  
handling gasoline. Gasoline is extremely  
flammable and the vapors are explosive. Never  
fuel the machine indoors or while the engine is  
hot or running. Extinguish cigarettes, cigars,  
pipes and other sources of ignition.  
Spark Plug Access  
Figure 6  
To Start Engine  
The electric starter is equipped with a grounded  
three-wire power cord and plug, and is designed to  
operate on 120 volt AC household current.  
Determine that your house wiring is a three-wire  
grounded system. Ask a licensed electrician if you  
are not certain.  
If your home wiring system is not a three-wire  
grounded system, do not use this electric starter  
under any conditions.  
If your home electrical system is grounded, but  
a three-hole receptacle is not available, one should  
be installed by a licensed electrician before using  
the electric starter.  
Insert ignition key into slot. Turn key to ON position.  
Now follow the instructions below as it pertains to  
your unit.  
Electric Starter  
WARNING: The electric starter must be  
used with a properly grounded three-prong  
receptacle at all times to avoid the possibility of  
electric shock. Follow all instructions carefully  
prior to operating the electric starter.  
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If you have a grounded three-prong receptacle,  
proceed as follows.  
Rotate choke lever to FULL position.  
Connect power cord to switch box on dash panel.  
Plug the other end of power cord into a three-prong  
120-volt, grounded, AC receptacle.  
Push starter button to crank engine. As you crank  
the engine, move choke lever to FULL choke  
position.  
When engine starts, release starter button, and  
move choke gradually to OFF. If engine falters,  
move choke immediately to FULL and then  
gradually to OFF.  
or four times. Pulling the starter rope will produce a  
loud clattering sound, which is not harmful to the  
engine or starter.  
Wipe all snow and moisture from the carburetor  
cover in the area of the control levers. Also, move  
control levers back and forth several times. Leave  
throttle control lever in the STOP or OFF position.  
Leave choke control in the FULL choke position.  
Remove ignition key and disconnect spark plug  
wire to prevent accidental starting.  
Operating the Snow Thrower  
Adjust the upper discharge chute up or down as  
shown in Figure 7. You will have to loosen the hand  
knob to adjust the upper chute, and then retighten  
after correct adjustment is reached.  
When disconnecting the power cord, always unplug  
from the three-prong receptacle first, and then from  
the snow thrower.  
Recoil Starter  
Use the chute crank to position the discharge chute  
in order to discharge snow with the wind.  
Rotate choke lever to FULL choke position (cold  
engine start).  
If engine is warm, place choke in OFF position  
instead of FULL.  
Push primer button two or three times for cold  
engine start.  
After making sure no bystanders or obstacles are in  
front of the unit, engage the auger control handle.  
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.  
If engine is warm, push primer button only once.  
Release the auger control handle to stop the snow  
throwing action and the forward motion.  
NOTE: Always cover vent hole in primer button when  
pushing. Additional priming may be necessary for first  
start if temperature is below 15 degrees Fahrenheit.  
Upper  
Discharge  
Chute  
Grasp starter handle and pull rope out slowly, until  
it pulls slightly harder. Let rope rewind slowly.  
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.  
As engine warms up and begins to operate evenly,  
rotate choke lever slowly to OFF position. If engine  
falters, return to FULL choke, then slowly move to  
OFF position.  
Hand  
Knob  
Figure 7  
To Stop Engine  
Operating Tips  
To stop engine, turn ignition key counter-clockwise.  
Disconnect the spark plug wire from the spark plug  
to prevent accidental starting while equipment is  
unattended.  
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 forward motion.  
To help prevent possible freeze-up of starter, proceed  
as follows:  
Run engine for a few minutes before stopping to  
help dry off any moisture on the engine.  
NOTE: Excessive upward pressure on the handle will  
result in premature wear on the rubber auger blades  
which would not be covered by warranty.  
Electric Starter: Connect power cord to switch box  
on engine, then to 120 volt AC receptacle. With the  
engine running, push starter button and spin the  
starter for several seconds. The unusual sound  
made by spinning the starter will not harm engine or  
starter. Disconnect the power cord from receptacle  
first, and then from switch box.  
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 can cause a burn. Do  
not touch.  
Recoil Starter: With engine running, pull starter  
rope with a rapid, continuous full arm stroke three  
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SECTION 5: MAKING ADJUSTMENTS  
Belt Tension  
WARNING: NEVER attempt to make any  
adjustments while the engine is running,  
except where specified in the snow thrower  
and/or engine operators manuals.  
Periodic adjustment of the belt tension may be required  
due to normal stretch and wear on the belt. Adjust the  
belt tension, following instructions below, if the augers  
seem to hesitate while turning although engine  
maintains the same speed.  
Shave Plate  
The upper hole in the control handle provides  
adjustment for belt tension. To adjust, disconnect  
the Zend of control cable from the bottom hole in  
the control handle. See Figure 10 . Hook the cable  
into the upper hole in control handle as shown.  
To check the adjustment of the shave plate, place  
the unit on a level surface. See Figure 8. 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 does not self-propel, the shave plate  
may be too low and needs to be adjusted.  
Upper  
Hole  
Clutch  
Cable  
NOTE: On new units or units with a new shave plate  
installed, the augers may be slightly off the ground.  
Control  
Housing  
Figure 10  
If additional adjustment is required, follow steps below.  
Remove the belt cover by removing five hex screws  
that hold it in place. See Figure 12.  
There are three adjustment holes provided in the  
idler bracket assembly. See Figure 11. 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.  
Augers  
Shave Plate  
Figure 8  
High Position  
Middle Position  
Idler  
Bracket  
To adjust, tip the snow thrower back so that it rests  
on the handle. Loosen the four lock nuts and bolts  
which secure the shave plate to the housing. See  
Figure 9. Move the shave plate to desired position  
and retighten the nuts and bolts securely.  
Low Position  
Auger  
Spring on  
Pulley  
End of Clutch  
Cable  
Figure 11  
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.  
Lock Nut & Carriage Bolt  
Figure 9  
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SECTION 6: MAINTAINING YOUR SNOW THROWER  
Replacing Shave Plate  
WARNING: Before servicing, 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 against the engine to prevent  
unintended starting.  
The shave plate is attached to the bottom of the auger  
housing and is subject to wear. It should be checked  
periodically. There are two wearing edges and the  
shave plate can be reversed. See Figure 14.  
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 instructions on  
page 9. Tighten securely.  
Replacing Belt  
Remove the belt cover by removing five hex  
screws. See Figure 12.  
Hex  
Screw  
Shave  
Plate  
Hex Screw  
Remove these hardware  
Belt Cover  
Figure 12  
Figure 14  
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.  
Engine  
Refer to the separate engine manual for all engine  
maintenance procedures.  
Reassemble new belt. See Figure 13.  
Reinstall the belt cover.  
Check engine and snow thrower frequently for  
loose hardware, and tighten as needed.  
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.  
Lubricate the flange keepers on the chute crank  
once a season with a light oil making sure the crank  
rod moves freely. Remove bolts holding the shroud  
to the housing, and lift shroud to access the chute  
crank bracket.  
Idler Pulley  
Engine  
Pulley  
Auger  
Drive  
Belt  
Pulley  
Figure 13  
10  
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SECTION 7: OFF-SEASON STORAGE  
Follow Storageinstructions 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.  
WARNING: Never store engine with fuel in  
tank indoors or in enclosed, poorly ventilated  
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.  
NOTE: When storing any type of power equipment in a  
poorly ventilated or metal storage shed, care should be  
taken to rustproof the equipment, especially springs,  
cables and all moving parts.  
Clean snow thrower thoroughly.  
Lubricate as instructed above with a light oil.  
SECTION 8: TROUBLESHOOTING GUIDE  
Problem  
Cause  
Remedy  
Engine fails to start  
1. Fuel tank empty, or stale fuel  
2. Blocked fuel line  
1. Fill tank with clean fresh gasoline.  
2. Clean fuel line  
3. Key not in ON position  
4. Spark plug wire disconnected  
5. Faulty spark plug  
3. Insert key and turn to ON position  
4. Connect wire to spark plug.  
5. Clean spark plug, readjust gap, or replace.  
6. Prime engine four times.  
6. Engine not primed  
7. Engine flooded with excessive priming  
7. Wait at least ten minutes before starting.  
Engine runs erratic  
1. Unit running on choke  
2. Fuel line blocked, or stale fuel  
1. Move choke lever to OFF position.  
2. Clean fuel line and fill tank with fresh,  
clean gasoline.  
3. Water or dirt in fuel system  
4. Carburetor out of adjustment  
3. Refer to engine manual for remedy.  
4. Refer to engine manual for remedy.  
Engine overheats  
Loss of power  
1. Carburetor out of adjustment  
1. Refer to engine manual for instruction.  
1. Spark plug wire loose  
2. Vent in gas cap plugged  
1. Connect and tighten spark plug wire.  
2. Clear vent.  
Excessive vibration  
1. Loose parts or damaged auger  
1. Stop engine immediately and disconnect  
spark plug wire. Check for possible  
damage. Tighten all bolts and nuts. Repair  
as needed. If the problem persists, take  
unit to an authorized service dealer.  
Unit fails to self-propel 1. Drive cable out of adjustment  
2. Drive belt loose or damaged  
1. Adjust drive cable following instructions on  
page 9 of this manual.  
2. Replace drive cable.  
Unit fails to discharge 1. Discharge chute clogged  
snow  
1. Stop engine immediately and disconnect  
spark plug wire. Clean discharge chute  
and the auger housing.  
2. Foreign object lodged in auger  
3. Drive cable not adjusted properly  
4. Drive belt loose or damaged  
2. Stop engine immediately and disconnect  
spark plug wire. Remove object .  
3. Adjust drive cable following instructions on  
page 9 of this manual.  
4. Replace drive belt.  
NOTE: For repairs beyond the minor adjustments listed above, call the White Outdoor Customer Dealer Line at  
1-(800)-949-4483 for the dealer nearest you. Refer to separate engine manual, packed with your snow  
thrower, for engine information.  
11  
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SECTION 9: PARTS LIST FOR MODEL 721E  
15  
9
6
21  
17  
14  
6
6
21  
24  
21  
23  
3
1
8
22  
13  
10  
4
2
20  
16  
25  
7
33  
42  
11  
57  
12  
35  
47  
45  
48  
32  
19  
18  
31  
44  
26  
58  
11  
35  
41  
53  
49  
60  
28  
42  
33  
36  
59  
37  
52  
5
5
27  
29  
5
54  
50  
51  
43  
49  
40  
35  
56  
53  
38  
34  
46  
55  
39  
30  
12  
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Model 721E  
Ref. No.  
Part No.  
Part Description  
Ref. No.  
Part No.  
710-0451  
Part Description  
Carriage Bolt  
684-0174  
684-0177  
684-0178  
684-0192  
710-0895  
710-1003  
710-1882  
710-3083  
712-0252  
712-0429  
712-3010  
714-0104  
714-0507  
720-0201A  
725-0201  
725-2018  
726-0100  
736-0119  
736-0185  
736-0225  
736-0400  
736-0451  
7519636  
Upper Chute Crank Assemby  
Lower Chute Crank Assembly  
Bracket Assembly: Mitten Grip  
Shroud:Black, 7 Hp. Electric  
TT Screw 1/4-15 x 0.75”  
B Screw #10-16 x 0.625”  
Hex Flange Screw  
Hex Bolt 5/16-18 x 1.375”  
Jam Nut  
1.  
31.  
32.  
33.  
34.  
35.  
36.  
37.  
38.  
39.  
40.  
41.  
42.  
43.  
44.  
45.  
46.  
47.  
48.  
49.  
50.  
51.  
52.  
53.  
54.  
55.  
56.  
57.  
58.  
59.  
60.  
710-0642  
710-0773  
710-0896  
710-1005  
711-0848A  
712-0116  
712-3010  
712-3027  
731-1033  
732-0357A  
736-0108  
736-0119  
736-0176  
736-0242  
736-0326  
736-0329  
741-0475  
741-0600  
746-0910A  
748-0234  
756-0313  
784-5174  
784-5175B  
784-5176  
784-5485  
784-5720  
684-0196  
734-1811  
710-1090  
TT Screw 1/4-20 x 0.75”  
TT Screw 3/8-16 x 0.5”  
AB Screw 1/4-14 x 0.625”  
B Screw 1/4-14 x 0.5”  
Axle Tube  
2.  
3.  
4.  
5.  
6.  
7.  
Jam Lock Nut  
Hex Nut 5/16-18  
Lock Nut  
8.  
9.  
Lock Nut  
Shave Plate  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
20.  
21.  
22.  
23.  
24.  
25.  
26.  
27.  
28.  
29.  
30.  
Hex Nut 5/16-18  
Extension Spring  
Flat Washer  
Cotter Pin  
Cotter Pin  
Lock Washer  
Knob: Chute Crank  
Ignition Key  
Flat Washer  
Beleville Washer  
Flat Washer  
Switch: Electric Start Key  
Push Cap  
Lock Washer  
Lock Washer  
Plastic Bushing  
Ball Bearing  
Flat Washer  
Internal Lock Washer  
Flat Washer  
Clutch Cable  
Shoulder Spacer  
Flat Idler  
Saddle Washer  
Mitten Grip Handle  
Spark Plug Access  
Upper Handle: Gull Wing  
Lower Handle  
Bearing Cup  
684-0190  
749-0711A  
749-0796B  
710-0167  
710-0191  
710-0323  
710-0352  
Bracket: Brake Idler  
Belt Cover  
Auger Assembly  
Chute Crank Bracket  
Auger Housing Assembly  
Wheel Assembly  
Hex Flange Screw  
Carriage Screw 1/4-20 x 0.50”  
Hex Bolt  
Machine Screw  
B Screw1/4-14 x 0.375”  
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 Yellow, the part number to order would  
be 700-xxxx-0716.  
Cub Cadet Yellow: 0716  
Powder Black: 0637  
13  
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Model 721E  
19  
16  
24  
18  
1
15  
7
5
11  
10  
15  
8
17  
Engine is for reference only  
and may not resemble the  
engine on your snow thrower.  
9
6
13  
25  
3
21  
13  
14  
23  
2
3
4
22  
20  
Ref. No.  
Part No.  
Description  
Extension Cord  
Ref. No.  
9.  
Part No.  
719-0581  
Description  
629-0236  
710-0157  
710-0409  
710-0502A  
710-0751  
710-1003  
710-3013  
712-3006  
Spacer  
1.  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
Hex Bolt 5/16-24 x 0.75”  
Hex Bolt 5/16-24 x 1.75”  
TT Sems Screw  
726-0205  
731-2005  
736-0119  
736-0242  
736-0329  
741-0475  
751-0535  
751-0540A  
751-0603  
754-0101A  
756-0416B  
756-0475  
784-0322  
784-0323  
784-0374  
Hose Clamp  
Choke Knob  
Lock Washer  
Beleville Washer  
Lock Washer  
Plastic Bushing  
Fuel Line Hose  
Gas Tank  
10.  
11.  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
20.  
21.  
22.  
23.  
24.  
25.  
Hex Screw 1/4-20 x 0.620”  
B Screw #10-16 x 0.625”  
Hex Screw 1/4-20 x 0.50”  
Hex Nut 1/4-20  
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 Yellow, the part number to order would  
be 700-xxxx-0716.  
Fuel Cap  
V-Belt  
V-Pulley Half  
Pulley  
Engine Mount  
Support Bracket  
Support Plate: Engine Mount  
Cub Cadet Yellow: 0716  
Powder Black: 0637  
14  
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Model 721E  
5
Ref. No.  
Part No.  
710-0487  
Description  
Carriage Screw 5/16-18 x 2.0”  
Machine Screw  
9
1.  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
9.  
10.  
710-1270  
712-0324  
720-0284  
720-0295  
725-0157  
736-0451  
746-0883  
747-0956  
749-0711A  
Hex Lock Nut 1/4-20  
Hand Knob w/ Wing Nut  
Foam Grip  
8
Cable Tie  
10  
Saddle Washer  
3
Control Housing  
2
Auger Bail  
4
Upper Handle: Gull Wing  
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 yellow, the part number to order would  
be 700-xxxx-0716.  
1
6
7
7
4
Cub Cadet Yellow: 0716  
Powder Black: 0637  
5
Ref. No.  
Part No.  
710-0276  
Description  
Carriage Screw: Special  
Carr. Bolt 5/16-18 x 0.750”  
Hex Screw 1/4-20 x 0.75”  
Lock Nut  
9
1.  
2.  
710-0451  
710-3015  
712-3027  
712-3068  
720-0284  
731-0851A  
731-0915B  
731-0921  
736-0159  
10  
6
3.  
10  
4.  
Hex Lock Nut  
5.  
8
4
Hand Knob  
6.  
Flange Keeper: Chute  
Lower Chute  
7.  
1
2
8.  
Upper Chute  
9.  
Washer  
10.  
4
7
3
15  
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MANUFACTURER’S LIMITED WARRANTY FOR:  
TWO-YEAR RESIDENTIAL  
ONE-YEAR COMMERCIAL  
Proper maintenance of your Cub Cadet equipment is the owner’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 warranty for residential users, covers any defect in materials or workmanship in your Cub Cadet  
equipment for two years from the date of purchase for the first user purchaser. We will replace or repair 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 does not cover routine maintenance items such as lubricants, filters (oil, fuel, air and hydraulic),  
cleaning, tune-ups, brake and/or clutch inspection, adjustments made as part of normal maintenance, blade  
sharpening, set-up, abuse, accidents and normal wear. It does not cover incidental costs such as transporting  
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 authorized Cub Cadet servicing dealer who sold you your Cub Cadet equipment. If this dealer is  
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 gives you specific legal rights, and you may also have other rights which vary from state  
to state.  
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