John Deere ST0320 User Manual
ST0320
Snow Thrower
OPERATOR’S
MANUAL
MTF-041007C
INTRODUCTION
Congratulations on your purchase of a Frontier Snowthrower. It has been designed, engineered and manufactured to give you
the best possible dependability and performance. However, like all mechanical products, your machine will occasionally require adjustment and maintenance. This handbook should be read before operating or performing and adjustments on your
machine.
The instructions in this Owner’s Manual are written for a person with some mechanical ability. Like most service books, not
all the steps are described. Steps on how to loosen or tighten fasteners are steps anyone can follow with some mechanical
ability. Read and follow these instructions before you use the unit.
Know your product:: If you understand the unit and how the unit operates, you will get the best performance. As you read
this manual, compare the illustrations to the unit. Learn the location and the function of the controls. To help prevent an accident, follow the operating instructions and the safety rules. Keep this manual for future reference.
IMPORTANT: Many units are not assembled and are sold in cartons. It is the responsibility of the owner to make sure the as-
sembly instructions in this manual are exactly followed. Other units are purchased in an assembled condition. On assembled
units, it is the responsibility of the owner to make sure the unit is correctly assembled. The owner must carefully check the unit
according to the instructions in this manual before it is first used.
The warranty, found in this manual, details the coverage and limitations of this product. Registration of the warranty is
necessary and must be preformed by the dealer within sixty (60) days from the date of retail sale or delivery. The
Warranty Registration Form is located on the Frontier website.
RESPONSIBILITY OF THE OWNER
The responsibility of the owners to follow the instructions below.
1. Carefully read and follow the rules for safe operation.
2. Follow all the assembly instructions.
3. Inspect the unit.
4. Make sure that the operator of the unit knows how to correctly use all standard and accessory equipment.
5. Operate the unit only with guards, shields, and other safety items in place and working correctly.
6. Correctly adjust the unit.
7. Service the unit only with authorized or approved replacement parts.
8. Complete all maintenance on the unit.
PRODUCT INFORMATION
The owner must be certain that all the product information is included with this unit.
This information includes the INSTRUCTION BOOKS, the REPLACEMENT PARTS
and the WARRANTIES. This information must be included to make
sure state laws and other laws are followed.
Read And Keep This Book For
Future Reference. This Book Contains Important Information On:
SAFETY, ASSEMBLY, OPERATION AND MAINTENANCE.
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2
RULES FOR SAFE OPERATION
IMPORTANT
WARNING: Always disconnect the spark plug wire and place it where it cannot make contact with
spark plug to prevent accidental starting during: Preparation, Maintenance, or Storage of your
snowthrower.
Safe Operation Practices for Snowthrowers
As Recommended By: American National Standards Institute.
Engine Exhaust, some of its constituents, and
certain vehicle components contain or emit
chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm.
Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause
cancer and birth defects or other reproductive
harm. WASH HANDS AFTER HANDLING.
IMPORTANT: Safety standards require operator presence
controls to minimize the risk of injury. Your snowthrower is
equipped with such controls. Do not attempt to defeat the
function of the operator presence control under any circumstances.
Training
1. Read the operating and service instruction manual carefully. Be thoroughly familiar with the controls and the
proper use of the equipment. Know how to stop the unit
and disengage the controls quickly.
2. Never allow children to operate the equipment. Never
allow adults to operate the equipment without proper
instruction.
3. Keep the area of operation clear of all persons, particularly small children and pets.
4. Exercise caution to avoid slipping or falling especially
when operating in reverse.
Preparation
1. Thoroughly inspect the area where the equipment is to
be used and remove all doormats, sleds, boards, wires,
and other foreign objects.
2. Disengage all clutches before starting the engine
(motor).
3. Do not operate the equipment without wearing adequate
winter outer garments. Wear footwear that will improve
footing on slippery surfaces.
4. Handle fuel with care; it is highly flammable.
MTF-041007C
a. Use an approved fuel container.
b. Never remove fuel tank cap or add fuel to a running en-
gine (motor) or hot engine (motor).
c. Fill fuel tank outdoors with extreme care. Never fill fuel
tank indoors.
d. Replace fuel cap securely and wipe up spilled fuel.
e. Never store fuel or snowthrower with fuel in the tank
inside of a building where fumes may reach an open
flame or spark.
f. Check fuel supply before each use, allowing space for
expansion as the heat of the engine (motor) and/or sun
can cause fuel to expand.
5. For all units with electric starting motors use electric
starting extension cords certified CSA/UL. Use only with
a receptacle that has been installed in accordance with
local inspection authorities.
6. Adjust the snowthrower height to clear gravel or crushed
rock surface.
7. Never attempt to make any adjustments while the engine (motor) is running (except when specifically recommended by manufacturer).
8. Let engine (motor) and snowthrower adjust to outdoor
temperatures before starting to clear snow.
9. Always wear safety glasses or eye shields during operation or while performing an adjustment or repair to protect eyes from foreign objects that may be thrown from
the snowthrower.
Operation
1. Do not operate this machine if you are taking drugs or
other medication which can cause drowsiness or affect
your ability to operate this machine.
2. Do not use this machine if you are mentally or physically
unable to operate this machine safely.
3. Do not put hands or feet near or under rotating parts.
Keep clear of the discharge opening at all times.
4. Exercise extreme caution when operating on or crossing
gravel drives, walks or roads. Stay alert for hidden hazards or traffic.
5. After striking a foreign object, stop the engine (motor),
remove the wire from the spark plug, thoroughly inspect
snowthrower for any damage, and repair the damage
before restarting and operating the snowthrower.
6. If the unit should start to vibrate abnormally, stop the
engine (motor) and check immediately for the cause.
Vibration is generally a warning of trouble.
3
RULES FOR SAFE OPERATION
7. Stop the engine (motor) whenever you leave the operating position, before unclogging the auger/impeller housing or discharge chute and when making any repairs,
adjustments, or inspections.
8. When cleaning, repairing, or inspecting, make certain
the auger/impeller and all moving parts have stopped
and all controls are disengaged. Disconnect the spark
plug wire and keep the wire away from the spark plug to
prevent accidental starting.
9. Take all possible precautions when leaving the snowthrower unattended. Disengage the auger/ impeller, stop
engine (motor), and remove key.
10.Do not run the engine (motor) indoors, except when
starting the engine (motor) and for transporting the
snowthrower in or out of the building. Open the outside
doors; exhaust fumes are dangerous (containing CARBON MONOXIDE, an ODORLESS and DEADLY GAS).
11. Do not clear snow across the face of slopes. Exercise
extreme caution when changing direction on slopes. Do
not attempt to clear steep slopes.
12.Never operate the snowthrower without proper guards,
plates or other safety protective devices in place.
13.Never operate the snowthrower near enclosures, automobiles, window wells, drop- offs, and the like without
proper adjustment of the snow discharge angle. Keep
children and pets away.
14.Do not overload the machine capacity by attempting to
clear snow at too fast a rate.
15.Never operate the machine at high transport speeds on
slippery surfaces. Look behind and use care when backing up.
16.Never direct discharge at bystanders or allow anyone in
front of the unit.
17.Disengage power to the collector/impeller when snowthrower is transported or not in use.
18.Use only attachments and accessories approved by the
manufacturer of the snowthrower (such as tire chains,
electric start kits, ect.).
19.Never operate the snowthrower without good visibility or
light. Always be sure of your footing and keep a firm
hold on the handles. Walk;never run.
20.Do not over- reach. Keep proper footing and balance at
all times.
21.Exercise caution if operating on steep sloping surfaces.
22.This snowthrower is for use on sidewalks, driveways
and other ground level surfaces.
23.Do not use the snowthrower on surfaces above ground
level such as roofs of residences, garages, porches or
other such structures or buildings.
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Maintenance And Storage
1. Check shear bolts and other bolts at frequent intervals
for proper tightness to be sure the equipment is in safe
working condition.
2. Never store the snowthrower with fuel in the tank inside
a building where ignition sources are present such as
hot water and space heaters, clothes dryers, and the
like. Allow the engine (motor) to cool before storing in
any enclosure.
3. Always refer to operator’s guide instructions for important details if the snowthrower is to be stored for an extended period.
4. Maintain or replace safety and instruction labels, as
necessary.
5. Run the snowthrower a few minutes after throwing
snow to prevent freeze- up of the auger/impeller.
WARNING: Avoid
injury from rotating
auger- keep hands,
feet, and clothing
away.
WARNING: Do not use
hands to unclog discharge
chute.
• Stop engine/motor
before removing debris.
• Do not walk in front
of running machine.
• Do not discharge at
bystanders.
• Keep people and pets
a safe distance from the
machine.
• Before leaving machine,
shut off engine/ motor
and remove key.
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TABLE OF CONTENTS
SAFETY DECALS 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OWNER’S INFORMATION 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLY 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARTS BAGS CONTENTS: 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOOLS REQUIRED FOR ASSEMBLY 8. . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO REMOVE THE SNOW THROWER FROM THE CARTON 8.
HOW TO ASSEMBLE THE HANDLE 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO ASSEMBLE THE LOWER CHUTE 9. . . . . . . . . . . . . . . . . . . . . .
HOW TO ASSEMBLE THE CHUTE CONTROL ROD 9. . . . . . . . . . . . . .
OPERATION 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE AND SNOW THROWER OPERATING CONTROLS 10. . . . . . .
SNOW BLOWER OPERATION 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO STOP THE SNOW THROWER 11. . . . . . . . . . . . . . . . . . . . . . . .
HOW TO CONTROL SNOW DISCHARGE 11. . . . . . . . . . . . . . . . . . . . . . .
HOW TO THROW SNOW 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO MOVE FORWARD 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO MIX THE FUEL MIXTURE 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BEFORE STARTING THE ENGINE 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO STOP THE ENGINE 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO START THE ENGINE 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO REMOVE SNOW FROM THE AUGER HOUSING 14. . . . . . . .
SNOW THROWING TIPS 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE RECOMMENDATIONS 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATION 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO REMOVE THE TOP COVER 16. . . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO REMOVE THE BELT COVER 16. . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO ADJUST THE CHUTE CRANK 17. . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO ADJUST THE AUGER CONTROL CABLE 17. . . . . . . . . . . . . . .
HOW TO REPLACE THE DRIVE BELT 18. . . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO REPLACE THE AUGER 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TO ADJUST THE CARBURETOR 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TO ADJUST OR REPLACE THE SPARK PLUG 20. . . . . . . . . . . . . . . . . . .
STORAGE 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLE SHOOTING CHART 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARTS SCHEMATICS 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
SAFETY DECALS
WARNING: If safety decals are damaged or missing, replace immediately.
Look for this symbol to indicate important safety precautions. This symbol indicates: “Attention! Become Alert! Your Safety Is At Risk.”
Before operation of your snowthrower, read the safety decals as shown on your snowthrower. The cautions and
warnings are for your safety. To avoid a personal injury or
damage to your snowthrower, understand and follow all
safety decals. If you have any questions regarding the
meaning or how to comply with the instructions, do not operate until you understand the purpose for the warning or
danger given in the safety decal. If you do not understand
the meaning, then thoroughly read all safety and operation
instructions in this Owner’s Manual or contact your local
dealer.
If any safety decals become worn or damaged and cannot
be read, order replacement decals from your local dealer.
Identifying Your Snowthrower
The snowthrower has two (2) identifying numbers: (1) unit
model number: (2) unit serial number. The two preceding
numbers are required to insure that the proper replacement parts are obtained when required. If you have any
questions concerning parts, service, or technical data, contact the dealer where the unit was purchased.
For complete warranty information refer to the warranty in
the Owner’s Information section of this manual.
MTF-041007C
Figure 1
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OWNER’S INFORMATION
THREE YEAR LIMITED WARRANTY
Murray warrants to the original purchaser of this Frontier Branded Snowthrower that this unit shall be free from defects in
material and workmanship under normal use and service for a period of Three (3) Year from the date of purchase; however,
this warranty does not cover accessories (such as electric starters) and Normal Wear Parts (except as noted below) as the
companies that manufacture these items furnish their own warranties and provide service through their authorized field
service facilities. For additional information, see the warranties covering these particular parts. If you are uncertain whether
your unit contains or is equipped with one or more of these parts, consult your dealer prior to purchase. Subject to the terms
and conditions noted in this Limited Warranty, we shall, at our option, repair or replace at no cost to the original purchaser
any part covered by this Limited Warranty during the applicable warranty period.
Normal Wear Parts are defined as drive belts, augers, shear pins, tires and headlights. These parts are warranted to be free
from defects in material and workmanship as delivered with the product. Any claim for repair or replacement of Normal Wear
Parts must be made within thirty (30) days of the date of purchase. No claims involving damage caused from material use,
abuse or misuse will be honored.
This Murray Three (3) Year Limited Warranty for your Frontier Branded Snowthrower is your exclusive remedy; however,
this warranty is void or does not apply to any unit that has been tampered with, altered, misused, abused. If used for
commercial and/or professional (non-homeowner) uses, the duration of this warranty is ninety (90) days after the date of
purchase. Your warranty does not cover minor mechanical adjustments which are not due to any defect in material or
workmanship. For assistance in making such adjustments, consult your Operator’s Manual.
The engine on this Frontier Branded Snowthrower is warranted to the original purchaser for only a Two (2) Year Limited
Warranty. See your engine manual for information regarding the warranty policy and items covered under warranty. See
your authorized John Deere/Frontier Dealer for service or replacement parts.
To make a claim under this Murray Three (3) Year Limited Warranty for your Frontier Branded Snowthrower, return the unit
(or if authorized in advance, the defective part) along with your proof of purchase to an Authorized John Deere/Frontier Dealer
near you. To locate the nearest Authorized John Deere/Frontier Dealer, check the Yellow Page listings in your local telephone
directory. If you return the entire unit, John Deere/Frontier will repair all warranty items. If authorize to return the defective
part only, John Deere/Frontier will either replace or repair the part. This Murray Three (3) Year Limited Warranty for your
Frontier Branded Snowthrower gives you specific legal rights, and you may also have other rights which vary from state to
state.
This Limited Warranty is given in lieu of all other expressed and implied warranties including the implied
warranty of merchantability and warranty of fitness for a particular purpose. If you need additional information on this
written warranty or assistance in obtaining service, contact you local John Deere/Frontier Dealer.
MT
FOR YOUR RECORDS
DATE PURCHASED:
MODEL NO:
SERIAL NO:
STORE WHERE PURCHASED:
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ADDRESS:
CITY: STATE:
TELEPHONE :
Record this information about your unit so that you will
be able to provide it in case of loss or theft.
7
PARTS BAGS CONTENTS:
1 - 2.6 ounces 2-cycle oil
ASSEMBLY
WARNING: Always wear safety glasses or eye
shields while assembling the snowthrower.
1 - Owner’s Manual
TOOLS REQUIRED FOR ASSEMBLY
1-Knife
1-Pliers
HOW TO REMOVE THE SNOW THROWER
FROM THE CARTON
1. Locate all parts that are packed separately and remove
from the carton.
2. Remove and discard the packing material from around
the snow thrower.
3. Cut down all four corners of the carton and lay the side
panels flat.
4. Hold onto the lower handle and pull the snow thrower off
the carton.
CAUTION: DO NOT back over cables.
5. Remove the packing material from the handle assembly.
Figure 2 shows the snow thrower in the operating position.
References to the right or left hand side of the snow thrower are from the viewpoint of the operator’s position behind
the unit.
5. Cut and discard the cable tie from the lower end of the
chute control rod.
6. Turn the chute deflector around toward the front of the
snow thrower.
Handle
HOW TO ASSEMBLE THE HANDLE
1. Remove the packing material from the upper and lower
handles.
2. Loosen the knobs on each side of the handle. (See
Figure 2)
3. Raise the upper handle to the operating position. Hold
the upper handle apart to prevent scratching the lower
handle.
NOTE: Make sure the cables are not caught between
the upper and lower handle.
4. Tighten the knobs.
MTF-041007C
Knob
Figure 2
8
ASSEMBLY
HOW TO ASSEMBLE THE LOWER CHUTE
For shipping purposes, some models are shipped with the
rear nut and bolt removed from the lower chute. If the lower chute is not attached, assemble as follows.
1. Use the bolt and nut found in the parts bag to attach
the lower chute.
Bolt
Nut
2. Tip the lower chute backward until the hole in the chute
ring is aligned with the hole in the lower chute. See
Figure 3
3. Attach the lower chute with bolt and nut. Make sure
the nut is tight.
HOW TO ASSEMBLE
THE CHUTE CONTROL ROD
1. Remove the cotter pin, flat washer, and wave washer
from the end of the chute control rod. DO NOT
DISCARD. (See Figure 4)
2. Mount the end of the chute control rod through the
hole in the control rod bracket. Make sure the worm
gear is aligned with the notches in the discharge
chute.
3. Fasten the chute control rod to the control rod
bracket with cotter pin, flat washer, and wave
washer.
Lower Chute
Worm Gear
Chute Control Rod
Wave Washer
Flat Washer
Cotter Pin
Discharge
Chute
Figure 3
Notches
Control Rod
Bracket
4. Rotate the chute control rod clockwise and
counterclockwise. Make sure the discharge chute
rotates freely.
n CHECKLIST
Before you operate your new snow thrower, to ensure that
you receive the best performance and satisfaction from
this quality product, please review the following checklist:
n All assembly instructions have been completed.
n The discharge chute rotates freely.
n No remaining loose parts in carton.
MTF-041007C
Figure 4
While learning how to use your snow thrower, pay extra
attention to the following important items:
n Make sure the fuel tank is filled with the correct mixture
(50:1 ratio) of gasoline and oil.
n Become familiar with the location of all controls and un-
derstand their function.
n Before starting the engine, make sure all controls oper-
ate correctly.
9
OPERATION
KNOW YOUR SNOW THROWER
READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR SNOW THROWER. Compare the
illustrations with your SNOW THROWER to familiarize yourself with the location of various controls and adjustments.
Save this manual for future reference.
Chute Control Rod
Auger Drive Lever
Recoil
Chute Deflector
Discharge
Chute
Starter
Handle
Primer
Button
Ignition Switch Key
ENGINE AND SNOW THROWER OPERATING CONTROLS
Auger Drive Lever - Starts and stops the auger.
Chute Control Rod - Changes the direction of snow throw-
ing through the discharge chute.
Chute Deflector - Changes the distance the snow is
thrown.
Recoil
Starter
Spark Plug
Access Panel
Choke Control
Figure 5
Ignition Switch Key - Must be inserted and turned to the
ON position to start the engine.
Recoil Starter Handle - Starts the engine manually.
Choke Control - Used to start a cold engine.
Primer Button - Injects fuel directly into the carburetor
manifold for fast starts in cold weather.
Discharge Chute - Changes the direction the snow is
thrown.
MTF-041007C
Spark Plug Access Panel - Aides in the removal of the
spark plug.
10
OPERATION
SNOWTHROWER OPERATION
The most effective use of the snowthrower will be established
by experience, taking into consideration the terrain, wind
conditions and building location which will determine the
direction of the discharge chute.
NOTE: Do not discharge snow toward a building as
hidden objects could be thrown with sufficient force to
cause damage.
WARNING: Read Owner’s Manual before operating machine. This machine can be dangerous
if used carelessly.
Never operate the snowthrower without all guards,
covers, and shields in place.
Never direct discharge toward windows or allow bystanders near machine while engine is running.
Stop the engine whenever leaving the operating position.
Disconnect spark plug before unclogging the impeller
housing or the discharge chute and before making repairs or adjustments.
When leaving the machine, remove the ignition key.
To reduce the risk of fire, keep the machine clean and
free from spilled gas, oil and debris.
NOTE: If the snow thrower continues to slowly move
forward, see “How To Adjust The Auger Control
Cable” in the Service And Adjustment Section.
2. To stop the engine, move the ignition key to the OFF
position.
HOW TO CONTROL SNOW DISCHARGE
1. Turn the chute control rod to set the direction of the
snow throwing. (See Figure 5)
2. Loosen the wing knob on the chute deflector and move
the deflector to set the distance. Move the deflector (Up)
for more distance, (Down) for less distance. Then tighten
the wing knob (See Figure 6).
Deflector Down
Deflector Up
HOW TO STOP THE SNOWTHROWER
1. To stop throwing snow, release the auger drive lever.
(See Figure 7).
HOW TO THROW SNOW
1. Engage the auger drive lever. (See Figure 7).
2. To stop throwing snow, release the auger drive lever.
HOW TO MOVE FORWARD
1. Hold the auger drive lever against the handle (See
Figure 7). The auger will begin rotating.
2. To go forward, raise the handle to allow the rubber au-
ger blades to contact the ground. Maintain a firm hold on
the handle as the snow thrower starts to move forward.
Guide the snow thrower by moving the handle either left
or right. Do not attempt to push the snow thrower.
3. To stop, release the auger drive lever.
Wing Knob
Figure 6
NOTE: If the auger continues to rotate, see “How To
Adjust The Auger Control Cable” in the Service and
Adjustments section.
Auger
Drive Lever
“Z” Hook
Figure 7
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11
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