
S18 Single Stage
09693100 • 4/22
ENGLISH
FRANÇAIS
E10
Models
938026 – S18 Single Stage
(SN 000101 +)
938027 – S18E Single Stage
(SN 000101 +)
®
Operator’s Manual
Manuel du Utilisateur

WELCOME . . . . . . . . . . . . . . . . . . . . . . 1
Register Your Product!. . . . . . . . . . . . . . 1
SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . 2
Practices & Laws . . . . . . . . . . . . . . . . . . 2
Emission Control System. . . . . . . . . . . . 2
Required Operator Training . . . . . . . . . . 2
Safety Alert Symbol . . . . . . . . . . . . . . . . 2
Signal Words . . . . . . . . . . . . . . . . . . . . . 2
Safety Decals. . . . . . . . . . . . . . . . . . . . . 3
Safety Rules. . . . . . . . . . . . . . . . . . . . . . 4
CONTROLS & FEATURES. . . . . . . . . . 7
Engine Key. . . . . . . . . . . . . . . . . . . . . . . 8
Auger Control Bar . . . . . . . . . . . . . . . . . 8
Choke Control Lever . . . . . . . . . . . . . . . 8
Primer Bulb . . . . . . . . . . . . . . . . . . . . . . 8
Recoil Starter Handle. . . . . . . . . . . . . . . 8
Electric Start Button . . . . . . . . . . . . . . . . 8
Discharge Chute Handle . . . . . . . . . . . . 8
OPERATION . . . . . . . . . . . . . . . . . . . . . 9
Emergency Stopping . . . . . . . . . . . . . . . 9
Before Operating Unit . . . . . . . . . . . . . . 9
Start Engine . . . . . . . . . . . . . . . . . . . . . . 9
Position Discharge Chute . . . . . . . . . . . 9
Operate Unit. . . . . . . . . . . . . . . . . . . . . . 10
Stop Engine . . . . . . . . . . . . . . . . . . . . . . 10
Transporting Unit . . . . . . . . . . . . . . . . . . 10
For Best Performance . . . . . . . . . . . . . . 10
Engine Operation Angle. . . . . . . . . . . . . 10
MAINTENANCE . . . . . . . . . . . . . . . . . . 11
Service Position. . . . . . . . . . . . . . . . . . . 11
Maintenance Schedule . . . . . . . . . . . . . 11
Service Parts . . . . . . . . . . . . . . . . . . . . . 11
Add Fuel Stabilizer. . . . . . . . . . . . . . . . . 11
Clean Unit . . . . . . . . . . . . . . . . . . . . . . . 11
Check Engine Oil . . . . . . . . . . . . . . . . . . 12
Change Engine Oil. . . . . . . . . . . . . . . . . 12
Check Fasteners . . . . . . . . . . . . . . . . . . 12
Check Auger Paddle Wear . . . . . . . . . . 12
Check Belt Wear . . . . . . . . . . . . . . . . . . 12
SERVICE & ADJUSTMENTS . . . . . . . . 12
Replace Auger Paddles . . . . . . . . . . . . . 12
Adjust Auger Cable . . . . . . . . . . . . . . . . 12
Replace Belt . . . . . . . . . . . . . . . . . . . . . 13
Replace Scraper Blade . . . . . . . . . . . . . 14
STORAGE . . . . . . . . . . . . . . . . . . . . . . . 15
Short Term. . . . . . . . . . . . . . . . . . . . . . . 15
Long Term . . . . . . . . . . . . . . . . . . . . . . . 15
Start-of-Season Fuel Preparation . . . . . 15
ACCESSORIES. . . . . . . . . . . . . . . . . . . 15
TROUBLESHOOTING . . . . . . . . . . . . . 16
SPECIFICATIONS. . . . . . . . . . . . . . . . . 17
WARRANTY . . . . . . . . . . . . . . . . . . . . . 18
TABLE OF CONTENTS

EN - 1
© 2022 • AriensCo • Brillion, WI 54110
WELCOME
Congratulations on your purchase and welcome to the Ariens family! Every machine in the
Ariens lineup is designed for long-lasting and unsurpassed performance. We are confident your
machine will be part of your family for many years to come.
Have Questions or Need Assistance?
www.ariens.com
A parts manual for your unit is available for free download
or purchase at www.ariens.com.
REGISTER YOUR PRODUCT!
It is extremely important to register your
product at time of purchase. Product
registration activates the warranty and
establishes a communication link from
AriensCo.
Locate the model and serial number decal on
your unit and register those numbers online at
www.ariens.com. See Figure 1 for decal
location. Be aware that the original selling
dealer may have already completed product
registration on behalf of the original
purchaser.
Record model number here.
Record serial number here.
Figure 1
Model & Serial Number
Decal
MANUALS
Before operating or servicing the unit, carefully
and completely read the manuals provided with
the unit. They contain safety instructions and
important information about unit controls.
The engine on this unit is covered by a
separate manual. Refer to the engine manual
for engine service recommendations. Contact
the engine manufacturer for a replacement
manual if necessary.
Your dealer must review important information
in this manual with you before or upon delivery
of the unit. It is your responsibility to read and
understand all safety precautions and
instructions in the manuals. If you do not
understand or have difficulty following the
instructions, contact your Ariens dealer for
assistance. To locate your nearest Ariens
dealer, go to www.ariens.com.
DISCLAIMER
Ariens reserves the right to discontinue, make
changes to, and add improvements upon its
products at any time without public notice or
obligation. The descriptions and specifications
contained in this manual were in effect at
printing. Equipment described in this manual
may be optional. Some illustrations may not be
applicable to your unit.

EN - 2
Read these safety rules and follow them
closely. Failure to follow these rules could
lead to loss of control of unit, severe personal
injury or death to you or bystanders, or result
in damage to property or the machine.
PRACTICES & LAWS
Practice usual and customary safe working
precautions. Learn applicable rules and laws
in your area. Always follow the practices set
forth in this manual.
EMISSION CONTROL SYSTEM
This equipment and/or its engine may include
exhaust and evaporative emissions control
system components required to meet U.S.
Environmental Protection Agency (EPA)
and/or California Air Resources Board
(CARB) regulations. Tampering with emission
controls and components by unauthorized
personnel may result in severe fines or
penalties. Emission controls and components
can only be adjusted by an Ariens dealer or
an authorized engine manufacturer's service
center. Contact your Ariens Equipment
Retailer concerning emission controls and
component questions.
REQUIRED OPERATOR
TRAINING
Read and understand the
Operator's Manual and decals
on the unit. This information is
for your safety and the proper
use of your equipment.
Failure to follow these
instructions and warnings may cause death
or serious injury. If you have purchased this
product from an Ariens dealer, the dealer can
provide you with training.
Familiarize yourself and any other operators
with all controls and the safe use of the
features of this unit. If you loan, rent or sell
this product to others, provide them with all
manuals.
If you have any questions, please call our
customer support line at 920-756-4688 or
contact us at www.ariens.com. Do not use
this equipment if, after reading the Operator's
Manual and the on-board decals, you have
any questions about the safe use of this
product.
SAFETY ALERT SYMBOL
SIGNAL WORDS
The safety alert symbol above and signal
words below are used on decals and in this
manual. Read and understand all safety
messages.
1. Danger
2. Warning
3. Caution
SAFETY
WARNING: AVOID INJURY.
This snow thrower is capable
of crushing or amputating
body parts. Failure to observe
the safety instructions in the
manuals and on decals could
result in serious injury or
death.
ALWAYS disengage auger,
stop unit and engine and allow
moving parts to stop before
leaving operator’s position.
This is the safety alert symbol.
It means:
• ATTENTION!
• YOUR SAFETY IS
INVOLVED!
When you see this symbol:
• BECOME ALERT!
• OBEY THE MESSAGE!
DANGER: Indicates an
IMMINENTLY HAZARDOUS
SITUATION! If not avoided,
WILL RESULT in death or
serious injury.
WARNING: Indicates a
POTENTIALLY HAZARDOUS
SITUATION! If not avoided,
COULD RESULT in death or
serious injury.
CAUTION: Indicates a
POTENTIALLY HAZARDOUS
SITUATION! If not avoided,
MAY RESULT in minor or
moderate injury. It may also be
used to alert against unsafe
practices.

EN - 3
4. Notice
NOTICE: Indicates information or procedures
that are considered important but not hazard
related. If not followed, property damage
could result.
5. Important
IMPORTANT: Indicates general reference
information worthy of special attention.
SAFETY DECALS
The safety decals on your machine are visual
reminders of the important safety information
in this manual. All messages on your unit
must be fully understood and carefully
followed. Safety decals on the machine are
explained below.
Always replace missing or damaged safety
decals. Replacement decal information is in
the parts manual for your machine. Decals
can be ordered from your dealer.
See Figure 2 for safety decal locations.
Safety Decal Locations
Safety Decal Descriptions
1. DANGER!
Danger!
Only use clean-out tool to
clear blockages. NEVER
use your hands.
08000826A
08000917
08000826A
Figure 2
2
1
3
NEVER direct discharge
towards persons or property
that may be injured or
damaged by thrown objects.
Keep people away from unit
while operating. Keep
children out of work area
and under watchful care of a
responsible adult.
Remove engine key and
read manual before making
any repairs or adjustments.
Read operator’s manual.
Wear appropriate hearing
protection.
2. DANGER!
Danger!
ROTATING PARTS.
Keep clear of auger while
engine is running.
• Read Operator’s Manual.
• Allow operation only by
properly trained adult,
never children.
• Remove ignition key prior
to leaving the operator’s
position for any reason.
• Keep all controls, guards
and safety devices
properly serviced and
functional.
• Never direct discharge
towards persons or
property that may be
injured or damaged by
thrown objects.

EN - 4
SAFETY RULES
The following safety instructions are based
on the B71.3 specifications of the American
National Standards Institute in effect at the
time of production.
3. DANGER!
Danger!
ROTATING PARTS! ONLY
use clean-out tool to clear
blockages. NEVER use your
hands. High speed
auger/impeller rotates below
discharge opening. Wait for
all moving parts to stop
before removing clogs or
servicing.
Training
Read, understand and follow all instructions
on the machine and in the manual(s) before
operating this unit. Be thoroughly familiar
with the controls and the proper use of the
equipment. Know how to stop the unit and
disengage the controls quickly.
Never allow children to operate the
equipment. Never allow adults to operate
the equipment without proper instruction,
including actual operation.
Keep the area of operation clear of all
persons, particularly small children. Keep
children under watchful care of a
responsible adult. Be alert and shut off unit if
children enter area.
Exercise caution to avoid slipping or falling,
especially when operating the snow thrower
in reverse.
Always remove key and/or wire from spark
plug before assembly, maintenance or
service. Unintentional engine start up can
cause death or serious injury.
Complete a walk-around inspection of the
unit to understand the unit, your work area,
and all safety decals.
Preparation
Always check overhead and side clearances
carefully before operation.
Always be aware of traffic when operating
along streets or curbs.
Thoroughly inspect the area where the
equipment is to be used and remove all
pets, doormats, sleds, boards, toys, wires,
debris and other foreign objects.
Disengage the auger control lever before
starting the engine (motor).
Handle fuel with care; it is highly flammable.
• Use an approved fuel container.
• Never add fuel to a running engine or hot
engine.
• Fill fuel tank outdoors with extreme care.
Never fill fuel tank indoors.
• Never fill containers inside a vehicle or
on a truck or trailer bed with a plastic
liner. Always place containers on the
ground, away from your vehicle, before
filling.
• When practical, remove gas-powered
equipment from the truck or trailer and
refuel it on the ground. If this is not
possible, then refuel such equipment on
a trailer with a portable container, rather
than from a gasoline dispenser nozzle.
• Keep the nozzle in contact with the rim of
the fuel tank or container opening at all
times, until refueling is complete. Do not
use a nozzle lock-open device.
• Replace gasoline cap securely and wipe
up spilled fuel.
• If fuel is spilled on clothing, change
clothing immediately.
Never attempt to make any adjustments
while the engine (motor) is running (except
when specifically recommended by
manufacturer).
Always allow unit and engine to adjust to
outdoor temperature before clearing snow.
Operation
Never leave a running unit unattended.
Always shut off engine before leaving unit.
Do not put hands or feet near or under
rotating parts. Keep clear of the discharge
opening at all times.
Moving and/or rotating parts can cut off body
parts such as fingers or a hand. Always
keep hands, feet and clothing away from all
rotating parts during operation.

EN - 5
Always keep hands away from all pinch
points.
Do not touch unit parts which might be hot
from operation. Allow parts to cool before
attempting to maintain, adjust or service.
Check for weak spots on docks, ramps or
floors. Avoid uneven work areas and rough
terrain. Stay alert for hidden hazards.
Exercise extreme caution when operating on
or crossing gravel drives, walks or roads.
Stay alert for hidden hazards or traffic.
After striking a foreign object, stop the
engine (motor), remove the wire from the
spark plug, thoroughly inspect the snow
thrower for any damage, and repair the
damage before restarting and operating the
snow thrower.
If the unit should start to vibrate abnormally,
stop the engine (motor) and check
immediately for the cause.
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.
When cleaning, repairing or inspecting the
snow thrower, make certain the
auger/impeller and all moving parts have
stopped. Disconnect the spark plug wire and
keep the wire away from the plug to prevent
someone from accidentally starting the
machine.
Do not run the engine (motor) indoors. Open
the outside doors; exhaust fumes are
dangerous.
Never operate the snow thrower without
proper guards and other safety protective
devices in place.
Thrown objects can cause injury. Never
direct the discharge toward people or areas
where property damage can occur from
thrown objects. Keep children and others
away.
Do not overload the machine capacity by
attempting to clear snow at too fast a rate.
Slow down and turn corners slowly.
Never operate the machine at high transport
speeds on slippery surfaces. Look behind
and use care when backing.
Do not operate in reverse unless absolutely
necessary. Always back up slowly and look
down and behind before and while backing.
Do not carry passengers.
Disengage attachment drive when traveling
from one work area to another.
Disengage power to the auger/impeller
when snow thrower is transported or not in
use.
Use only attachments and accessories
approved by the manufacturer of the snow
thrower (such as wheel weights,
counterweights or cabs).
This product is equipped with an internal
combustion type engine. Do not use unit on
or near any unimproved, forest-covered or
brush-covered land unless exhaust system
is equipped with a spark arrester meeting
applicable local, state or federal laws. A
spark arrester, if it is used, must be
maintained in effective working order by
operator.
Never operate the snow thrower without
good visibility or light. Falling snow, fog, etc.
can reduce vision and cause an accident.
Never operate unit after or during the use of
medication, drugs or alcohol. Safe operation
requires complete and unimpaired attention
at all times.
Never allow anyone to operate this unit
when their alertness or coordination is
impaired.
Do not throw snow any higher than
necessary.
Clearing a Clogged Discharge Chute
Hand contact with the rotating
auger/impeller inside the discharge chute is
the most common cause of injury associated
with snow throwers. Never use your hand to
clean out the discharge chute.
To clear the chute:
1. SHUT THE ENGINE OFF!
2. Wait 10 seconds to be sure the
auger/impeller blades have stopped
rotating.
3. Always use a clean-out tool, not your
hands.
Maintenance and Storage
Secure unit so it will not tip over during
maintenance.
Before cleaning, removing clogs or making
any inspections, repairs, etc., disengage
auger control lever, stop unit and engine,
allow moving parts to stop and hot parts to
cool.

EN - 6
Make sure the equipment is in safe working
condition. Check hardware at frequent
intervals for proper tightness. If components
are worn or damaged, replace with
manufacturer’s recommended parts.
Do not change engine governor settings or
over-speed engine.
Adjust and service as required. All motion of
auger/impeller must stop quickly when
auger control lever is released.
Always maintain unit in safe operating
condition. Damaged or worn out muffler can
cause fire or explosion.
Keep unit free of ice or other debris. Clean
up oil or fuel spills.
Always keep protective structures, guards,
and panels in good repair, in place and
securely fastened. Never modify or remove
safety devices.
Never store the machine with fuel in the fuel
tank inside a building where ignition sources
are present such as hot water heaters,
space heaters or clothes dryers. Allow the
engine to cool before storing in any
enclosure or covering the unit.
Always refer to operator's manual for
important details if the snow thrower is to be
stored for an extended period.
Maintain or replace safety and instruction
labels as necessary.
Run the machine a few minutes after
throwing snow to prevent freeze-up of the
auger/impeller.
Personal Protection
Do not operate the equipment without
wearing adequate winter garments. Avoid
loose fitting clothing that can get caught in
moving parts. Wear footwear that will
improve footing on slippery surfaces.
Wear adequate safety gear, including safety
glasses with side shields, and protective
gloves.
Do not wear loose clothing or jewelry, and tie
back hair that may get caught in rotating
parts.
Protect eyes, face and head from objects
that may be thrown from unit. Wear
appropriate hearing protection.
Slope Operation
Operate the snow thrower on level surfaces.
Stay off slopes and slippery surfaces.
Do not clear snow across the face of slopes;
go up and down. Exercise extreme caution
when operating on slopes. Do not attempt to
clear steep slopes.
Use a slow speed to avoid stops or shifts on
slopes. Avoid starting or stopping on a
slope. Do not park unit on a slope unless
absolutely necessary. When parking on a
slope always block the wheels.
Do not operate near drop-offs, ditches, or
embankments. Unit can suddenly turn over if
a wheel is over the edge of a cliff or ditch, or
if an edge caves in.
Fuel
Do not run engine in an enclosed area.
Always provide good ventilation. Fumes
from engine exhaust can cause injury or
death.
Fuel is highly flammable and its vapors are
explosive. Handle with care. Use only an
approved gasoline container with an
appropriately sized dispensing spout.
No smoking, sparks or flames. Always allow
engine to cool before servicing.
Never fill fuel tank when engine is running or
hot from operation.
Never fill or drain fuel tank indoors.
Replace fuel cap securely and clean up
spilled fuel.
Properly remove fuel before tipping unit up
onto housing, so no spills will occur.
Towing/Transporting
Always shut off engine and close fuel shut-
off valve or drain fuel when transporting unit
on a truck or trailer.
Use extra care when loading or unloading
unit onto trailer or truck. Secure unit chassis
to transport vehicle. Never secure from rods
or linkages that could be damaged. Do not
transport machine while engine is running.
Accessories
Use only attachments recommended by
AriensCo that are appropriate to your use
and can be used safely in your application.

EN - 7
1. Engine Key
2. Primer Bulb
3. Choke Control Lever
4. Oil Fill / Dipstick
5. Oil Drain Plug
6. Handlebar
7. Auger Control Bar
8. Auger Control Cable Assembly
9. Recoil Starter Handle
10. Discharge Chute Handle
11. Discharge Chute Deflector Handle
12. Discharge Chute
13. Wing Knob
14. Auger Paddle
15. Fuel Cap & Tank
16. Electric Start Button (Model 938027)
17. Power Cord Receptacle (Model 938027)
CONTROLS & FEATURES
Figure 3
11
13
8
2
3
10
7
14
12
17
5
6
4
9
15
16
1

EN - 8
See Figure 3 for all controls and features
locations.
ENGINE KEY
See Figure 4.
Controls power to the engine. The removable
engine key must be inserted for engine to
start.
AUGER CONTROL BAR
See Figure 5.
Engages and disengages auger paddle
rotation. Pulls unit forward when engaged.
CHOKE CONTROL LEVER
See Figure 6.
Restricts air intake for easier starting on cold
engines.
PRIMER BULB
Adds fuel to engine for easier start on cold
engines. See Start Engine on page 9.
RECOIL STARTER HANDLE
When pulled, handle will start engine. See
Start Engine on page 9.
ELECTRIC START BUTTON
Model 938027
Starts a correctly choked engine.
DISCHARGE CHUTE HANDLE
Turn discharge chute handle to control
direction of snow discharge. See Position
Discharge Chute on page 9.
WARNING: AVOID INJURY. Read
and understand the Safety section
before proceeding.
In-On
Out-Off
Figure 4
Figure 5
Figure 6

EN - 9
IMPORTANT: All references to left, right, front
or rear are given from the perspective of
operator in operator’s position, facing the
direction of forward travel.
EMERGENCY STOPPING
1. Release auger control bar.
2. Remove engine key.
3. Wait for all moving parts to stop before
leaving operator’s position.
BEFORE OPERATING UNIT
IMPORTANT: Register your product! See
Register Your Product! on page 1.
1. Check for frozen components.
2. Check fuel level and add fuel if needed.
IMPORTANT: Use fresh unleaded fuel with
an octane rating of at least 87. DO NOT use
E85 blended fuels; the engine is not E20 /
E30 / E85 compatible. The maximum
recommended ethanol content is 10%. Ariens
recommends using a quality fuel stabilizer in
all fuel. See Short Term on page 15.
3. Check engine oil level and add oil if
needed. Refer to engine manual.
4. Check function of all controls.
5. Know how to stop in an emergency. See
Emergency Stopping on page 9.
START ENGINE
1. Electric Start: Connect power cord to
starter and then into 120V 3-wire
grounded outlet. See Accessories on
page 15.
IMPORTANT: Use a power cord that is UL
listed or CSA certified, rated for a minimum of
13 amps, grounded and labeled as suitable
for outdoor use.
2. Insert engine key.
3. Cold Engines Only: Press primer bulb
3times.
4. Move choke control lever to on position.
5. Electric Start: Press electric start button.
NOTICE: DO NOT run starter more than 10
times at intervals of 5 seconds on / 5 seconds
off or overheating and damage may occur.
6. Recoil Start: Pull recoil starter handle.
a. Grasp handle and pull rope out slowly
until it pulls harder.
b. Pull handle firmly and quickly with a
rapid, continuous full-arm stroke.
Repeat until engine starts. If engine
does not start, see Troubleshooting
on page 16.
c. Let handle rewind slowly after engine
starts. DO NOT let handle snap back
against handlebar.
7. Gradually turn choke off as engine
warms.
8. Electric Start: Disconnect power cord
from outlet and then from starter.
POSITION DISCHARGE CHUTE
See Figure 7.
IMPORTANT: Always throw snow in a safe
direction, away from people and windows.
IMPORTANT: If chute becomes frozen and
does not turn correctly, take unit into warm
area until controls are unfrozen.
1. Turn discharge chute handle in the
direction you want to throw snow.
2. Loosen wing knob and move discharge
chute deflector handle up or down to
control snow throw height.
3. Tighten wing knob.
OPERATION
WARNING: AVOID INJURY. Read
and understand the Safety section
before proceeding.
Figure 7
1. Discharge Chute Handle
2. Wing Knob
3. Discharge Chute Deflector Handle
1
3
2

EN - 10
OPERATE UNIT
1. Rotate discharge chute and move
deflector to desired positions.
2. Pull auger control bar back to handlebar
to start auger; release bar to stop auger.
See Figure 8.
3. Lift handlebar to raise rear wheels until
scraper blade and auger paddles come in
contact with the ground. See Figure 9.
NOTICE: Lifting the handle controls the
forward speed of the machine. If unit does not
propel itself forward in heavy snow or on
slippery surfaces, push forward on the
handlebar.
STOP ENGINE
1. Release auger control bar.
2. Remove engine key.
TRANSPORTING UNIT
1. Remove engine key.
NOTICE: Use extra care when loading or
unloading onto truck or trailer. DO NOT lift
using discharge chute handle.
2. Secure unit chassis to transport vehicle.
Never secure from rods or linkages that
could be damaged.
FOR BEST PERFORMANCE
• For complete snow removal, walk slowly
and slightly overlap each path previously
taken.
• Position discharge chute downwind when
possible.
• Do not pick up gravel and rocks. Push
down slightly on handlebar to avoid picking
up debris.
• Inspect auger before each use and remove
any accumulation / debris.
• Check oil level before each use.
• Clean unit after each use.
ENGINE OPERATION ANGLE
Engine angle during operation can affect how
well the engine is lubricated regardless of oil
level.
Operating beyond the engine manufacturer’s
recommended maximum angle will lead to
premature engine wear and void the engine
warranty. Refer to the engine operator’s
manual for maximum angle of operation.
1. Auger Control Bar
2. Auger Paddle
1
2
Figure 8
Figure 9

EN - 11
Your Ariens dealer can provide service and
adjustments to keep your unit operating at
peak efficiency. Contact an authorized engine
manufacturer’s service center for engine
service.
SERVICE POSITION
See Figure 10.
MAINTENANCE SCHEDULE
SERVICE PARTS
See your Ariens dealer to purchase service
parts for your unit.
XX
ADD FUEL STABILIZER
Add fuel stabilizer to gasoline at time of
purchase to help ensure the best
performance over the life of that fuel. See
Short Term on page 15 for instructions.
CLEAN UNIT
1. Remove snow and debris with a soft-
bristled brush. DO NOT use harsh
abrasives or cleaners.
2. Protect painted surfaces with automotive-
type wax.
MAINTENANCE
WARNING: AVOID INJURY. Read
and understand the Safety section
before proceeding.
WARNING: Properly remove fuel
before tipping unit onto
handlebars to avoid spills (Refer
to engine manual for instructions.)
Make sure unit is secure and will
not tip.
Figure 10
Service Performed
Each Use
Every 10 hrs.
Annually
As Needed
Add Fuel Stabilizer *
Clean Unit •
Check Engine Oil ** •
Check Fasteners •
Check Auger Paddle Wear •
Check Scraper Blade Wear •
Check Belt Wear •
Replace Scraper Blade •
Change Engine Oil ** • •
Replace Spark Plug ** •
Replace Auger Paddles •
* See Add Fuel Stabilizer on page 11.
** Refer to engine manual for instructions.
Description Part No.
Fuel Stabilizer – 118 ml (4 oz) 04730400
Ariens 5W-30 Engine Oil
• 473 ml (16 oz)
• 946 ml (32 oz)
00091000
00067600
Ariens 0W-30 Synthetic
Engine Oil
• 591 ml (20 oz)
• 946 ml (32 oz)
00077600
00077900
Auger Belt 07200908
Auger Paddle Replacement Kit 53805100
Scraper Blade Replacement
Kit
53805000

EN - 12
CHECK ENGINE OIL
NOTICE: Engine oil level must be maintained
at correct level or engine damage may occur.
Refer to engine manual.
CHANGE ENGINE OIL
Refer to engine manual.
CHECK FASTENERS
Check for loose hardware.
CHECK AUGER PADDLE WEAR
Replace when auger paddles have worn
through wear indicator holes. See Replace
Auger Paddles on page 12.
CHECK BELT WEAR
Adjust auger cable as needed. Replace when
damaged or when auger stops or stutters
during operation. See Adjust Auger Cable on
page 12 and Replace Belt on Page 13.
REPLACE AUGER PADDLES
Replace auger paddles when paddles have
worn completely through wear indicator
holes. See Figure 11.
IMPORTANT: Always replace auger paddles
in pairs. Do not replace one paddle only.
1. Stop engine, wait for all moving parts to
stop and hot parts to cool.
2. Place unit in service position. See
Service Position on page 11.
See Figure 12.
3. Remove eight hex bolts, washers,
spacers and lock nuts securing paddles to
side plates.
4. Remove four hex bolts, spacers and lock
nuts securing paddles to center plate.
5. Discard paddles and hardware.
IMPORTANT: Do not remove center plate.
6. Position new paddles with wear indicator
holes on the left side as you face the unit.
7. Secure paddles with new hardware.
8. Torque to 9.5 N•m (84 lb-in). DO NOT
overtighten.
9. When both paddles are installed, rotate
auger paddles by hand. Ensure that
paddles do not rub on housing and are
tightly attached.
10. Return unit to operating position.
11. Remove slack from auger cable. See
Adjust Auger Cable on page 12.
ADJUST AUGER CABLE
See Figure 13.
1. Remove engine key.
2. Slide plastic sleeve up to auger control
bar.
3. Insert Z-hook into appropriate hole in
adjustment bracket. When auger control
bar is disengaged, there should minor
slack in cable and no tension.
SERVICE &
ADJUSTMENTS
WARNING: AVOID INJURY. Read
and understand the Safety section
before proceeding.
1. Wear Indicator Hole
1
Figure 11
Figure 12
1. Auger Paddle
2. Side Plate
3. Center Plate
1
2
3

EN - 13
4. Engage auger control bar to ensure
proper operation. There should be no
excessive tension on cable.
5. Lower plastic sleeve.
REPLACE BELT
1. Stop engine, wait for all moving parts to
stop and hot parts to cool.
2. Remove and retain two tapping screws
from top cover. See Figure 14.
See Figure 15.
3. Remove six tapping screws from side belt
cover. Retain for reinstallation.
NOTICE: Install shorter screw (front-left side)
in its original position when reinstalling cover.
4. Remove fuel cap.
5. Lift edge of top cover to remove side belt
cover. Retain for reinstallation.
6. Remove belt from drive pulley, idler and
engine sheave. See Figure 16.
7. Install new belt onto engine sheave, idler
and drive pulley. Route belt between idler
and belt finger on idler arm.
Figure 13
1. Auger Control Bar
2. Plastic Sleeve
3. Z-hook
4. Adjustment Bracket
1
2
3
4
Figure 14
1
2
3
1. Top Cover
2. Side Belt Cover
3. Short Screw
Figure 15
Figure 16
1. Idler Arm
2. Drive Belt
2
1

EN - 14
8. Reinstall belt cover using original
hardware.
REPLACE SCRAPER BLADE
NOTICE: DO NOT allow scraper blade to
wear down too far or auger housing will
become damaged.
1. Stop engine, wait for all moving parts to
stop and hot parts to cool.
2. Place unit in service position. See
Service Position on page 11.
See Figure 17.
3. Remove and retain three screws from
scraper blade. Discard scraper blade.
4. Check condition of scraper support.
Replace if worn or damaged.
5. Install new scraper blade onto scraper
support using original hardware.
6. Return unit to operating position.
Figure 17

EN - 15
SHORT TERM
1. Engage auger momentarily to remove
loose or melting snow to prevent auger
shaft from freezing.
2. Tighten all hardware to correct
specifications.
3. Inspect unit for visible signs of wear or
damage. Repair as needed.
4. Apply a light layer of oil or anti-rust
compound on bare metal areas.
5. Prepare fuel system for storage.
NOTICE: Ariens recommends using a quality
fuel stabilizer in all fuel. Gasoline left in the
fuel system without a stabilizer, even for short
periods of time, deteriorates and leaves
gummy deposits in the system that may
damage the carburetor and fuel hoses, filter
and tank. For the best effectiveness, add
stabilizer to all fuel containers whenever
purchasing fuel. Add the stabilizer to the
container before adding fuel.
a. Add Ariens fuel stabilizer (see Service
Parts on page 11) or equivalent
according to manufacturer's
instructions to the fuel tank and any
fuel containers with remaining fuel.
b. Run engine outdoors for at least
5 minutes to allow stabilizer to reach
the carburetor.
6. Remove engine key.
7. Store unit in a cool, dry, protected area.
Do not store unit outdoors.
LONG TERM
1. Perform all short-term storage items.
2. Wash salt and other corrosive ice-melting
agent residue from unit with mild soap
and low-pressure water.
IMPORTANT: Never spray unit with high-
pressure water.
3. Touch up all scratched painted surfaces.
4. Store unit in a cool, dry, protected area.
Do not store unit outdoors.
START-OF-SEASON FUEL
PREPARATION
1. Before starting the unit for the first time
after long-term storage, add fresh,
stabilizer-treated fuel to the fuel tank and
any fuel containers with remaining fuel.
See your Ariens dealer for a complete list of
compatible accessories and attachments for
your unit.
STORAGE
WARNING: AVOID INJURY. Read
and understand the Safety section
before proceeding.
ACCESSORIES
Description Part No.
Protective Floor Mat 70716800
Sno-Thro Cover Kit 73801100
120V Extension Cord Kit 02483100

EN - 16
TROUBLESHOOTING
Problem Probable Cause Correction
Engine will not
start.
Engine key is not in unit. Insert key. See Engine Key on page 8.
Choke is off. Move choke control lever to on position. See
Choke Control Lever on page 8.
Fuel tank is empty. Fill fuel tank with fuel. See Before Operating Unit
on page 9.
Engine is not primed. If engine is cold, press primer bulb three times
and start engine. Do not prime a warm engine.
See Primer Bulb on page 8.
Excessive fuel in engine
cylinder (flooded).
Move choke control lever to off position and
reattempt starting. See Start Engine on page 9.
Engine is faulty. See your Ariens dealer or authorized engine
manufacturer’s service center.
Spark plug wire is
disconnected.
Connect spark plug. Refer to engine manual.
Spark plug is faulty. Replace spark plug. Refer to engine manual.
Contaminated fuel
supply.
Replace with clean fuel.
Fuel mixture is too rich. Turn choke control lever to off position. See
Choke Control Lever on page 8.
Engine starts
hard or runs
poorly.
Spark plug is faulty,
fouled or incorrectly
gapped.
Clean and properly set spark plug gap (refer to
engine manual) or see your Ariens Dealer.
Fuel cap vent is
blocked.
Install new fuel cap.
Excessive
vibration.
Loose parts or damaged
auger paddles.
Stop engine immediately. Replace auger paddles.
See Maintenance Schedule on page 11 or see
your Ariens Dealer.
Excessive
snow left
behind.
Scraper blade is worn or
damaged.
Replace scraper blade. See Replace Scraper
Blade on page 14 or see your Ariens Dealer.
Snow does not
discharge.
Auger drive belt is loose
or damaged.
Replace belt or adjust auger control cable. See
Replace Belt on page 13 and Adjust Auger Cable
on Page 12. See your Ariens Dealer.
Discharge chute is
clogged with snow.
Stop engine immediately. Clean discharge chute
and auger housing. DO NOT use your hands.
Auger paddles are worn
or damaged.
Replace auger paddles. See Maintenance
Schedule on page 11 or see your Ariens Dealer.

EN - 17
SPECIFICATIONS
Model Number 938026 938027
Model S18 S18E
Starter Recoil Electric / Recoil
Engine
Engine Ariens
Engine Model AX99
Engine Size – cm
3
(in
3
)
99 (6.0)
Maximum RPM – No load. 4500 ± 100
Oil Capacity: L (Pt.) 0.35 (0.62)
Fuel Tank Capacity: L (Qt.) 1.4 (1.5)
Fuel Octane Rating See Engine Manual
Size and Weight
Length: cm (in.) 111.8 (44)
Width: cm (in.) 50.8 (20)
Height: cm (in.) 94.0 (37)
Weight: kg (lbs.) 26.8 (59.1) 28.3 (62.4)

4/22 • 05299800I
EN - 18
AriensCo warrants to the original purchaser that Ariens brand products purchased on or after 1/1/2022 will
be free from defects in material and workmanship for the time period noted in the chart below. Equipment put
to personal use around a single household or residence is considered “Residential Use.” Equipment put to
any business use (agricultural, commercial, or industrial) or used at multiple locations is considered
“Commercial Use.” If any product is rented or leased, then the duration of these warranties shall be 90 days
after the date of purchase.
An authorized Ariens dealer will repair any defect in material or workmanship, and repair or replace any
defective part, subject to the conditions, limitations and exclusions set forth herein. Such repair or
replacement will be free of charge (labor and parts) to the original purchaser; except as noted below. Pick-up
and delivery are at the owner’s expense.
The warranty code is found on the model and serial number identification label on the unit.
* Whichever comes first.
Special Extensions
The chart below details special extensions to warranty terms. Warranty terms are total time periods
covered. If any product is rented or leased, there are no extensions to the 90-day warranty.
Outdoor Power
Equipment
Limited Warranty
Warranty
Code
Product Group Warranty Period
AA Serialized Attachments 1 Year.
CH, CQ Zenith Mowers 4 Years or 750 Hours.*
HD LM-Series Walk-Behind Mowers 3 Years Residential Use. 90 Days Commercial Use.
HE Edge Mowers 2 Years or 150 Hours.*
HF Ikon-XD Mowers 3 Years or 300 Hours.*
HH Apex Mowers 4 Years or 500 Hours.*
PA 921-Series Brushes 3 Years Residential Use. 90 Days Commercial Use.
PB 926-Series Brushes 3 Years Residential Use. 1 Year Commercial Use.
SA Professional Sno-Thro 3 Years Residential Use. 1 Year Commercial Use.
SB
Compact, Deluxe and Platinum Sno-Thro
and Path-Pro
3 Years Residential Use. 90 Days Commercial Use.
SC S18 2 Years Residential Use. 90 Days Commercial Use.
SD Deluxe and Platinum EFI Sno-Thro 3 Years Residential Use. 90 Days Commercial Use.
SE 920-Series Classic Sno-Thro, Crossover 3 Years Residential Use. 90 Days Commercial Use.
SF Mammoth Tractor 2 Years or 500 Hours.*
Warranty
Code
Warranty Term Extension Warranty Period
SA Cast Iron Auger Gear Case 5 Years.
SB, SD Cast Iron Auger Gear Case
5 Years Residential Use.
1 Year Commercial Use.
Warran
ty

4/22 • 05299800I
EN - 19
Exclusions and Limitations
The charts below detail special exclusions and limitations to this warranty.
Exclusions – Items Not Covered by This Warranty
• Parts that are not genuine Ariens service parts are not covered by this warranty and may void the war-
ranty if the parts result in premature wear or damage to the product.
• Damages resulting from the installation or use of any part, accessory, or attachment which is not approved
by AriensCo for use with product(s) identified herein are not covered by this warranty.
• Any misuse, alteration, improper assembly, improper adjustment, neglect, or accident which requires
repair is not covered by this warranty.
• Repairs or adjustments required due to failure to use fresh fuel or failure to properly prepare the unit for
periods of non-use.
• Use of gasoline blends exceeding 10% ethanol voids any and all warranties.
• Any tampering with the hour meter voids any and all warranties.
• Products are designed to the specifications in the area that the product was originally distributed. Differ-
ent areas may have significantly different legal and design requirements. This warranty is limited to the
requirements in the area in which the unit was originally distributed. AriensCo does not warrant this prod-
uct to the requirements of any other area. Warranty service is limited to service within the area originally
distributed.
• In countries other than the United States and Canada, contact the AriensCo dealer for
warranty policies that govern within your country. Rights may vary from country to country and within any
one country.
Evaporative Emissions Control Warranty Exception
As required by the California Air Resources Board (CARB) and the US Environmental Protection Agency
(EPA) the evaporative emissions control system is warranted to the ultimate purchaser, and any subsequent
owner, for two years.
The CARB and EPA evaporative emissions control system warranty is described in a separate evaporative
emission control warranty statement.
Battery Warranty
Battery warranty is one year. Units used for rental or lease have no exceptions to the 90-day warranty. Total
battery claim reimbursement will not exceed 45.00 USD.
Warranty Term Exclusions Warranty Period
Air filters, auger paddles, brake arms, brake linings, brake shoes,
brushes, cutters, fuel filters, halogen headlights, knives, halogen light
bulbs, lubricants, mower blades, oil, oil filters, spark plugs, scraper
blades, shear bolts and skid shoes.
Components are not covered
under warranty.
Hydro-Gear Transaxle Limitation
See Hydro-Gear warranty. The warranty is administrated by AriensCo. Refer to www.ariens.com for
warranty statement.
Warranty Term Limitations Warranty Period
Cloth, Plastic and Rubber Components.
Mufflers, Tires and Belts.
Components are covered for manufacturer’s defect only, not
wear.
Parker Actuators 1 Year.

4/22 • 05299800I
EN - 20
Engines
The chart below details engine warranty information. Engine warranty terms may vary from the specific terms
of this warranty. If inconsistent, the terms of the engine warranty shall apply to the engine and its component
parts.
Parts and Accessories
Service replacement parts and non-serialized accessories are warranted for 90 days from date of purchase.
Labor is not included.
Customer Responsibilities
Register the product immediately at the time of sale. If the dealer does not register the product, the
customer must register the unit on-line at www.ariens.com.
To obtain warranty service, the original purchaser must:
• Ensure that the maintenance and adjustments explained in the Operator’s Manual are routinely
completed.
• Promptly notify AriensCo or an authorized Ariens service representative of the need for warranty service.
• Transport the product to and from the place of warranty service at owner’s expense.
• Have the warranty service performed by an authorized Ariens service representative.
To find an authorized dealer use the dealer locator on our websites, or contact us by mail or phone.
Engine Manufacturer Detail
Ariens AX
Ariens-branded engines are warranted by the manufacturer
and the warranty is administrated by AriensCo. Refer to the
engine manual or www.ariens.com for warranty statements.
Briggs & Stratton, Kawasaki, Kohler
Covered by the engine manufacturer’s warranty.
Refer to the engine manufacturer’s warranty statements.
Globally (Except Australia or
New Zealand):
Australia: New Zealand:
AriensCo
655 W. Ryan Street
Brillion, WI 54110
Phone: (920) 756 - 4688
www.ariensco.com
Masport Australia Pty Ltd
27 Commercial Drive
Dandenong South
Victoria 3175
Australia
Phone: 1300 366 225
www.masport.com.au
Masport Ltd
320 Ti Rakau Drive
East Tamaki
Auckland 2013
New Zealand
Phone: 0800 627 7678
www.masport.co.nz

4/22 • 05299800I
EN - 21
Disclaimer
AriensCo may from time to time change the design of its products. Nothing contained in this warranty shall be
construed as obligating the AriensCo to incorporate such design changes into previously manufactured
products, nor shall such changes be construed as an admission that previous designs were defective.
Limitation of Remedy and Damages
AriensCo liability under this warranty, and under any implied warranty that may exist, is limited to repair of
any defect in workmanship, and repair or replacement of any defective part. AriensCo shall not be liable for
incidental, special, or consequential damages (including lost profits). Some states do not allow the exclusion
of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
AriensCo shall not be held liable for damages, including premature wear and tear, or injuries caused by
installation of unauthorized parts and accessories or for parts and accessories not installed by an authorized
Ariens dealer.
Australian Consumer Law
The following applies solely to warranties subject to Subsection 102(1) of the Australian Consumer Law: Our
goods come with guarantees that cannot be excluded by the Australian Consumer Law. You are entitled to a
replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or
damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable
quality and failure does not amount to a major failure.
Disclaimer of Further Warranty
AriensCo makes no warranty, express or implied, other than what is expressly made in this warranty. If the
law of your state provides that an implied warranty of merchantability, or an implied warranty of fitness for
particular purpose, or any other implied warranty, applies to AriensCo, then any such implied warranty is
limited to the duration of this warranty. Some states do not allow limitations on how long an implied warranty
lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from region to
region.

655 West Ryan Street
Brillion, WI 54110
www.ariens.com
parts.ariens.com
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