Ariens 939002, 939001, 939300 User Manual

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Page 1

939 Sno-Thro

Service Manual Models 939001, 939002, 939300

01920500 12/06

Printed in USA

Page 2

TABLE OF CONTENTS

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . .1-5

1.1 The Manual . . . . . . . . . . . . . . . . . . . . . . .1-5

1.2 Service and Replacement Parts . . . . . . .1-5

1.3 Product Registration . . . . . . . . . . . . . . . .1-5

1.4 Unauthorized Replacement Parts . . . . . .1-5

1.5 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . .1-5

1.6 Technical Service Communications . . . . .1-5

2.0 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.1 Safety Alerts . . . . . . . . . . . . . . . . . . . . . .2-6

2.2 Notations . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.3 Practices and Laws . . . . . . . . . . . . . . . . .2-6

2.4 Required Operator Training . . . . . . . . . . .2-6

2.5 Safety Decals and Locations . . . . . . . . . .2-6

2.6 Preparation . . . . . . . . . . . . . . . . . . . . . . .2-7

2.7 Service Position . . . . . . . . . . . . . . . . . . . .2-7

2.8 Cleaning and Storage . . . . . . . . . . . . . . .2-8

Safety Rules 8

3.0 Specifications . . . . . . . . . . . . . . . . . . . . . 3-10

4.0 General Maintenance & Adjustments . . 4-11

4.1 Controls and Features . . . . . . . . . . . . . . 4-11

4.2 Service Position . . . . . . . . . . . . . . . . . . . 4-12

4.3 Stopping in an Emergency . . . . . . . . . . . 4-12

4.4 Starting and Shutting Off . . . . . . . . . . . . 4-12

4.5 Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.6 Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.7 Maintenance Schedule . . . . . . . . . . . . . 4-14

4.8 Attachment Drive Belt Replacement . . . 4-15

4.9 Traction Drive Belt Replacement . . . . . . 4-16

4.10Shear Bolts . . . . . . . . . . . . . . . . . . . . . . 4-17

4.11Tire Pressure . . . . . . . . . . . . . . . . . . . . . 4-17

5.2 Discharge Chute . . . . . . . . . . . . . . . . . . 5-17

5.3 Runners . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

5.4 Attachment Clutch/Brake Adjus tme nt . .5-18

5.5 Traction Drive Clutch Adjustment . . . . . . 5-19

6.0 HandleBars & Controls . . . . . . . . . . . . . 6-20

6.1 Inspect Lower Handlebar . . . . . . . . . . . . 6-20

6.2 Replace Lower Handlebar . . . . . . . . . . . 6-20

6.3 Traction Drive Clutch Lever and Cable . 6-20

6.4 Attachment Control Lever and Cable . . .6-21

7.0 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22

7.1 Engine Troubleshooting . . . . . . . . . . . . . 7-22

7.2 Engine Removal . . . . . . . . . . . . . . . . . . . 7-25

7.3 Engine Installation . . . . . . . . . . . . . . . . . 7-25

8.0 Transmission . . . . . . . . . . . . . . . . . . . . . 8-26

8.1 Transmission Removal . . . . . . . . . . . . . . 8-26

8.2 Transmission Installation . . . . . . . . . . . . 8-26

9.0 Auger/Impeller . . . . . . . . . . . . . . . . . . . . 9-27

9.1 Auger/Impeller Repair . . . . . . . . . . . . . . 9-27

9.2 Shear Bolts . . . . . . . . . . . . . . . . . . . . . . . 9-27

9.3 Discharge Chute . . . . . . . . . . . . . . . . . . 9-28

9.4 Discharge Chute Crank . . . . . . . . . . . . . 9-29

9.5 Runner and Scraper . . . . . . . . . . . . . . . . 9-30

10.0 Gear Case . . . . . . . . . . . . . . . . . . . . . . . 10-31

10.1 Aluminum Gear Case . . . . . . . . . . . . . 10-31

Service Parts List . . . . . . . . . . . . . . . . . . . . . . .32

5.0 Service and Adjustments . . . . . . . . . . . 5-17

5.1 Discharge Chute Deflector . . . . . . . . . . 5-17

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Ariens Company 655 West Ryan Street P.O. Bo x 157 Brillion, Wiscon si n 54 110-

0157 USA Telephone (920) 756-2141

EC DECLARA TION OF CONFORMITY ISSUED BY THE MANUFACTURER DÉCLARA TION DE CONFORMITÉ CE ÉMISE PAR LE FABRICANT – EU-ÜBEREINSTIMMUNGSERKLÄRUNG DES HERSTELLERS – DICHIARAZIONE DI CONFORMITÀ CE RILASCIATA DAL PRODUTTORE – DECLARACIÓN DE CONFORMIDAD CE EMITIDA POR EL FABRICANTE – EF-SAMSVARSERKLÆRING FRA PRODUSENTEN – EG-DEKLARATIONEN OM ÖVERENSSTÄMMELSE UTFÄRDAD AV

TILLVERKAREN –

VALMISTAJAN ANTAMA EY-VAATIMUSTENMUKAISUUSVAKUUTUS –

ZGODNOŒCI Z PRZEPISAMI EC WYDANA PRZEZ PRODUCENTA

DEKLARACJA

–

PROHLÁŠENÍ O SHODÌ

CE, VYDANÉ VÝROBCEM

Facsimile (920) 756-2407

We the undersigned, ARIENS COMPAN Y, certify that: Nous, sous signés ARIENS COM PANY, certifions que : Der Unterzeich n e te, ARIENS COMPANY, bescheinigt, dass: La sottoscritta socie tà ARIENS COMPANY certifica che: Noso tro s, los abajo firmantes, ARIE NS COM PANY, certificamos que: Undertegnede, ARIENS C OMPANY, bekrefter at: Underteckn ad, ARIENS COMPANY, intygar att: Alle kirjoittanut, ARIENS COMPANY, vakuuttaa, että:

COMPANY, oœwiadczamy, ¿e:

My, nížepodepsaní, ARIENS COMPANY, prohlašujeme, že:

My, niŸej podpisani, ARIENS

Type: Type : Typ: T ipo: Tipo: Type: Typ: Tyyppi:

Typ: Typ:

Trade Name: Appellation commerciale : Handelsbe zeichnun g: No me

WALK BEHIND SNOW THROWER – LES CHASSES-NEIGE AUTOTRACTÉS – HANDGEFÜHRTE SCHNEEFRÄSE – SPAZZANEVE SEMOVENTE – CAMINAR POR DETRÁS DE LA LANZADORA DE NIEVE – SNØFRESER – SJÄLVGÅENDE SNÖ SLUNGA – KÄSINOHJAILTAVA LUMILINKO –

SOB¥

–

SNÌHOVÁ FRÉZA S POJEZDEM

ODGARNIACZ ŒNIEGU DO PROWADZENIA PRZED

Ariens commerciale: Nombre comercial: Handelsnavn : H a ndelsbeteckning: Kauppanimi:

Model: Modèle : Modell: Modello: Modelo: Modell: M o dell: Malli:

Model: Model:

Nazwa handlowa: Obchodní název:

939300

Conforms to: Est conform e à : Mit den Anforderung en der folgenden Richtlinien übereinstimmt: È co nforme a: C umple con: Er i samsv a r med: Överensstämmer med: Täyttää

seuraavat vaatimukset:

Jest zgodny z: Odpovídá normì:

98/37/EC, 89/336/EEC, 2000/14/EC Conformity Assessment Annex V. Annexe V de l'évaluation de conformité. K onformitätsbewertung, Anhang V. Annesso V della va lutazion e di con formità. An exo V d e Bedömning av överensstäm melse B ilaga V. V aa timus tenmu kaisuud en arviointi, liite V.

la evaluación de la con formidad. S amsv arsvurde ring etter ved legg V.

Dodatek V, Ocena zgodnoœci. Posouzení

shody pøíloha V.

Representative Measured Sound Po wer Level (Lwa) – Niveau de puissance acoustique représent atif mesuré (L Repräsentativer g emessener Geräuschpegel (L di potenza sonora rapp resentativo rilevato (L potencia acústica represe ntativo medido Representativt målt lydeffektnivå (L uppmätt ljudnivå (L (L

) –

Zmierzony rep r e ze n t a tyw n y poziom mocy akustycz nej

)

–

Representativní hodnota zmìøené hladiny hluènosti (Lwa)

) – Tyypillinen mitattu äänitehotaso

(Lwa) –

) – Representativ

) – Livello

) – Nivel de

Guaranteed Sound Power Level (Lwa) –

) –

Niveau de puissance acoustique garanti (Lwa) – Garantierter

Geräuschpegel (L

) – Nivel de potencia acústica garantizado (Lwa) –

Garantert lydeffektnivå (L

) – Taattu

äänitehotaso (Lwa) –

mocy akustycznej

) –

) – Livello di potenza sonora g arantito

) – Garanterad uppmätt ljudnivå

Gwarantowa n y r ep r e ze n t a tyw ny poziom

(Lwa)

–

Zaruèovaná hodnota hladiny hluènosti

–

939300: xxx dBA 939300: xxx dB

Page 4

Fred J. Moreaux: Quality and Conformance Manager

(Keeper of Technical File) Responsable de la qualité et de la conformité des produits (Dépositaire de la fiche technique)

Manager Qualitätssicherung und Konformität (Archivar der technischen Akte)

Ariens Company Brillion, WI 54110-0157 USA Signature Signature Unterschrift Firma Firma Signatur Namnteckning

Allekirjoitus

Podpis Podpis

Date Date Datum Data F e ch a D a to Datum Päivä ys

xx/xx/2006

Data Datum

Responsabile della qualità e della conformità del prodotto (Depositario de calidad y conformidad (Depositario

del file tecnico) Gerente

del archivo técnico) Kvalitet- og samsvarsansvarlig (innehaver kvalitet och produktöverensstämmelse

av tekniske data) Chef för

(Innehavare av tekniska data) Laadusta ja vaatimustenmukaisuudesta vastaava päällikkö (T ek nisen tiedoston haltija)

Kierownik do spraw jakoœci i zgodnoœci (Przechowuj¹cy Dokumentacjê Techniczn¹) Manager jakosti a shody (správce technické dokumentace)

CE Sound and Vibration – Niveau sonore et vibration CE – CE-Geräuschpegel und Vibrationswerte – Livello sonoro e vibrazioni CE – Sonido y vibración CE – CE-lydnivå og Vibrasjonsmåling – CE ljudnivå och Vibr at ions-mätning – CE-melutaso Tärinä – CE DŸwiêku i Wibracji – CE zvuk a vibrace

Model: – Modèle : – Modell: – Modello: – Modelo: – Modell: – Modell: – Malli: – Model: – Model:

Oper. Ear Sound Pressure (Lpa) in dBA – Pression acoustique Pression sonore à aux oreilles de l’opérateur (L des Bedieners (L

) in dBA – Potenza sonora percepita dall’operatore

) en dBA – Geräuschstärke am Ohr

(Lpa) in. dBA – Presión de sonido en el oído (Lpa) in dBA – Lydtrykk i førerens øre (L korvaan kohdistuva äänipaine (L

uchu (L

) w decybelachA – Provozní hladina akustického tlaku (Lpa) v dB

) in. dBA – vid förarens position (Lwa) i dBA – Kuljettajan

)/dBA – Robocze ciœnienie akustyczne na

Vibration Measure (m/sec2) @ Operator Hands – Niveau de vibrationaux mains de l’opérateur – Vibrationswerte An den Händen des Bedieners – Misura delle vibrazioni all e mani dell ’op er atore – Canti dad de vi brac ión en las manos del operador – Vibrasjonsmåling ved brukerens hender – Vibrationsmätning vid förarens händer – Tärinä kuljettajan käsissä – Pomiar

wibracji (m/sec

) na rêkach operatora – Hodnota vibrací (m/s2) na rukou obsluhy x.x

939300

Page 5

1.1 THE MANUAL

SECTION 1 - INTRODUCTION

Serial Number Label

Figure 1

OS7330

This manual provides complete instructions for service, maintenance, disassembly, repair, and installation of the mechanical compo nen ts for the 939 Snow-Thr o.

Dealer trained service personnel should use this manual as a supplement to and reminder of the training sessions conducted by the company.

Read all information for servicing a part of system before repair work is started to avoid needless disassembly.

Operation

Before operation of the unit, carefully and completely read manuals supplied with the unit. The contents will provide you with an understanding of safety instructions and controls during normal operation and maintenance.

Safety Messages

For your safety and the safety of others always read, understand, and follow all DANGER, WARNING, and CAUTION messages found in manuals and on safety decals.

Directional Reference

All reference to left, right, front, or rear are given from the operator in the operator position and facing the direction of forward travel.

1.2 SERVICE AND REPLACEMENT PARTS

When ordering publications, replacement parts, or making service inquiries, know the Model and Serial numbers of your unit and engine.

Product model and serial numbers are located on the product registration form in the unit literature package. They are printed on a serial number label, located on the frame of your unit as shown in

Figure 1.

1.3 PRODUCT REGISTRATION

The Ariens dealer must register the product at the time of purchase. Registering the product will help the company process warranty claims or contact you with the latest service information. All claims meeting requirements during the limited warranty period will be honored, whether or not the product registration card is returned. Keep a proof of purchase if you do not register your unit.

Customer Note: If the dealer does not register your product, please fill out, sign, and return the product registration card to Ariens or go to www.ariens.com.

1.4 UNAUTHORIZED REPLACEMENT PARTS

Use only Ariens replacement parts. The replacement of any part on this vehicle with anything other than an Ariens authorized replacement part may adversely affect the performance, durability, or safety of this unit and may void the warranty . Ariens disclaims liability for any claims or damages, whether warranty, property damage, personal injury , or death arising out of the use of unauthorized replacement parts.

1.5 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 within this manual may be optional. Some illustrations may not be applicable to your unit.

1.6 TECHNICAL SERVICE COMMUNICATIONS

Ariens Technical Service communicates information to the field using Service Letters, Service Bulletins, Product Notices, and Campaigns. Each communication signifies a type of information and priority. The dealer is responsible to carry out the directive provided in the communication. The types of communication are:

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Service Letter - General technical information for the

SECTION 2 - SAFETY

Figure 2

OS7340

dealer. Technical information on how to service the product and product improvements.

Service Bulletin - Notification to update products to resolve certain issues or a notification of a policy change.

Product Notices - Notification of limited product located in a certain region. This is a limited distribution to only those who received the product involved.

Campaigns - Notification of a safety related issue. All product must be updated and are tracked by the factory until all units are corrected.

2.1 SAFETY ALERTS

WARNING: To avoid injury to hands and feet,

always disengage clutches, shut off engine, and wait for all movement to stop before unclogging or working on snow thrower.

Hand contact with the rotating impeller is the most common cause of injury associated with snow throwers. Never use your hand to clean out the discharge chute.

Keep hands and feet away from auger and impeller.

Look for these symbols to point out important safety precautions. They mean:

Attention! Personal Safety Is Involved! Become Alert! Obey The Message!

The safety alert symbols above and signal words below are used on decals and in this manual. Read and understand all safety messages.

2.3 PRACTICES AND LAWS

Practice usual and customary safe working precautions, for the benefit of yourself and others. Understand and follow all safety messages. Be alert to unsafe conditions and the possibility of minor, moderate, or serious injury or death. Learn applicable rules and laws in your area. Always follow the practices set forth in this manual.

2.4 REQUIRED OPERATOR TRAINING

Original purchaser of this unit was instructed by the seller on safe and proper operation. If unit is to be used by someone other than original purchaser; loaned, rented or sold, ALWAYS provide this manual and any needed safety training before operation.

2.5 SAFETY DECALS AND LOCATIONS

ALWAYS replace missing or damaged Safety Decals. Refer to

Figure 2 for Safety Decal locations.

DANGER: IMMINENTLY HAZARDOUS SITUATION! If not avoided, WILL RESULT in death or serious injury.

WARNING: POTENTIALLY HAZARDOUS SITUATION! If not avoided, COULD RESULT in death or serious injury.

CAUTION: POTENTIALLY HAZARDOUS SITUATION! If not avoided, MAY RESULT in minor or mode rate i nju ry. It may also be used to alert against unsafe practices.

2.2 NOTATIONS

NOTE: General reference information for proper opera-

tion and maintenance practices. IMPORTANT: Specific procedures or informati on

required to prevent damage to unit or attachment.

2 - 6

Page 7

WARNING!

OL1801

OL4370

OL0910 OL4010

OL4690

OL6610

OS6610

OS2080

DANGER!

Read Owner/Operator Manual.

Keep people away from unit while operating. Keep children out of work area and under watchful care of a responsible adult.

Never direct discharge towards persons or property that may be injured or damaged by thrown objects.

Stop engine, remove key, read manual before making any repairs or adjustments.

Wear appropriate hearing protection.

ONLY use clean-out tool to clear blockages. NEVER use your hands.

2. DANGER!

ROTATING PARTS. Keep clear of auger while engine is

running.

• Read Operator ’s Manual.

• Allow operation only by properly trained adult, never children.

• Stop engine and 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.

2.6 PREPARATION

Proper preparation is very important for efficient work before you start to remove any parts. A clean work area at the beginning of each job will allow you to perform service repairs easily and quickly.

To reduce the incidence of misplaced tools or parts, place removed components with all attaching hardware in the disassembly order on a clean work surface. Organization is a key part of proper reassembly.

Tools, instruments, and parts needed for the job should be gathered before work is started. Interrupting a job to locate tools or parts is a needless delay.

ROTATING P ARTS! ONLY use clean-out tool to clear blockages. NEVER use your hands. High speed impeller rotates

below discharge opening. Wait for all moving part s to s top before re moving clogs or servicing.

2.7 SERVICE POSITION

WARNING: ALWAYS block wheels and know

that jack stands or blocks used are stable, strong, secure and will hold the weight of the unit during maintenance.

To ensure the unit is positioned in the proper service position place unit on a flat level surface. ALWAYS stop engine. Assure unit is secure and will not tip over. Strap and clamp onto lift if used.

See Service Position in General Maintenance for specific instructions.

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2.8 CLEANING AND STORAGE

OS2080

WARNING: AVOID SHARP EDGES which can cut. Movement of parts can cut off fingers or a hand. Wear gloves, and use extreme caution when servicing.

IMPORTANT: Never spray unit with water or store unit outdoors to help prevent sealed bearing rust or corrosion. Water can seep into sealed bearings and reduce component life. Bearings are sealed against dirt and debris only.

A unit that is excessively dirty should be cleaned before work starts. Cleaning will occasionally uncover trouble sources. Dirt and abrasive dust reduce the efficient work life of parts and can lead to costly replacement.

When taking unit out of extended storage:

1. Check for any damage or loose parts. Repair, replace, or tighten hardware before operation.

2. If a preservative fluid was used in fuel tank, drain and discard. Fill fuel tank with fresh new fuel.

ROTATING PARTS. Keep clear of auger while engine is

running.

• Read Operator’s Manual.

• Allow operation only by properly trained adult, never children.

• Stop engine and 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.

2.9 SAFETY RULES

Read, understand, and follow all safety practices in Owner/Operator Manual before beginning assembly or operating. Failure to follow instructions could result in personal injury and/or damage to unit.

ALWA YS 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 unit and work area to understand:

• Work area • Your unit • All safety decals

ALWAYS check overhead and side clearances carefully before operation. ALWAYS be aware of traffic when operating along streets or curbs.

Keep children and people away. Keep children out of work area and under watchful care of a responsible adult.

NEVER allow children to operate or play on or near unit. Be alert and shut off unit if children enter area.

DO NOT allow adults to operate unit without proper training. Only trained adults may operate unit. Training includes actual oper ati on.

Keep area of operation clear of all toys, pets, and debris. Thrown objects can cause injury.

Check for weak spots on docks, ramps or floors. Avoid uneven work areas and rough terrain. Stay alert for hidden hazards.

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.

Falling snow, fog, etc. can reduce vision and cause an accident. Operate unit only when there is good visibility and light.

NEVER operate unit after or during the use of medication, drugs or alcohol. Safe operation requires your complete and unimpaired attention at all times.

NEVER allow anyone to operate this unit when his or her alertness or coordination is impaired.

DO NOT operate unit without wearing adequate winter outer garments. Wear adequate safety gear, including safety glasses with side shields, and protective gloves. Wear proper footwear to improve footing on slippery surfaces.

DO NOT wear l oose 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.

Avoid sharp edges. Sharp edges can cut. Moving parts can cut off fingers or a hand.

ALWAYS keep hands and feet away from all rotating parts during operation. Rotating parts can cut off body parts.

NEVER place your hands or any part of your body or clothing inside or near any moving part while unit is running.

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.

Never direct discharge towards persons or property that may be injured or damaged by thrown objects. Use extreme caution on gravel surfaces. Stay alert for hidden hazards or traffic. Adjust runners so scraper blade does not contact gravel. DO NOT use on gravel or crushed rock surfaces.

1 - 8

Page 9

DO NOT throw snow any higher than necessary. Deflected materials can cause injury and property

damage. Always stand clear of the discharge area when

operating this unit. Fumes from engine exhaust can cause injury or death.

DO NOT run engine in an enclosed area. Always provide good ventilation.

ALWAYS disengage attachment, stop unit and engine, remove key and allow moving parts to stop before leaving operator’s position.

ROTATING IMPELLER AUGER CAN CAUSE SERIOUS INJURY. NEVER ATTEMPT TO UNCLOG OR CLEAN UNIT WHILE ENGINE IS RUNNING.

Read, understand, and follow all instructions in the manual and on the machine before starting.

Understand:

• How to operate all controls.

• The functions of all controls.

• How to STOP in an emergency. Before starting engine, disengage control(s). Use only approved extension cords and receptacles

when starting units equipped with electric starter. DO NOT connect electric starter cord to any wiring system that is not a three-wire grounded system.

ALWAYS allow unit and engine to adjust to outdoor temperatures before clearing snow.

Always be sure of your footing, especially when operating in reverse or leaving the operator’s position. Walk, never run, during operation.

DO NOT overload the machine capacity by attempting to clear snow at too fast a rate.

Slow down and turn corners slowly. Do not operate in re vers e unl ess absol utely nece ssary.

ALW A YS back up slowly . Always look down and behind before and while backing.

Disengage attachment drive when traveli ng from one work area to another.

Abnormal vi brati ons ar e a warni ng of tr ouble . S t rikin g a foreign object can damage unit. Immediately stop unit and engine. Remove key and wait for all moving parts to stop. Remove wire from spark plug. Inspect unit and make any necessary repairs before restart.

Before cleaning, removing clogs or making any inspections, repairs, etc.: disengage clutch(es), stop unit and engine, remove key, allow moving parts to stop. Allow hot parts to cool.

Run unit a few minutes after clearing snow to prevent freeze-up of attachment.

Never leave a running unit unattended. Shut off engine before leaving unit. ALWA YS remove key to prevent unauthorized use.

Never carry passengers. Check clutch and brake operation frequently. Adjust

and service as required. All motion of drive wheels and auger/impeller must stop quickly when control levers are released.

DO NOT operate on steep slopes. DO NOT clear snow across the face of slopes. Keep all movement on slopes slow and gradual. DO NOT make sudden changes in speed or direction. 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.

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. Keep unit free of ice or other debris. Clean up oil or fuel

spills. 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.

Fuel is highly flammable and its vapors are explosive. Handle with care. Use an approved fuel container.

NO smoking, NO sparks, NO 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. 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 fueling is complete. Do not use a nozzle lock-open device.

If fuel is spilled on clothing, change clothing immediately.

Before tipping unit up onto housing, remove fuel so no spills will occur. Ensure unit is secure and will not tip over during maintenance.

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Page 10

ALWAYS keep protective structures, guards, and

SECTION 3 - SPECIFICATIONS

panels in good repair, in place and securely fastened. NEVER modify or remove safety devices.

DO NOT change engine governor settings or overspeed engine.

Fumes from engine exhaust can cause injury or death. DO NOT run engine in an enclosed area. Always provide good ventilation.

ALWAYS maintain unit in safe operating condition. Damaged or worn out muffler can cause fire or explosion.

Keep all hardware properly tightened. Check shear bolts frequently. Check slip clutch on units so equipped.

Model Number 939001 939002 939300 Description ST520E ST520 ST520 Engine - Tecumseh LH195SA LH195SA OH195SA

Engine Power – hp (kW) at Maximum RPM 5.0 (3.7) 5.0 (3.7) 5.9 (3.7) Fast Idle Speed-RPM (min-1)

Displacement - in. (cc) 11.88 (195)

Electric Start 120V Recoil Recoil Fuel See Engine Manual

Tank Capacity - qt. (L) 2.0 (1.96) 3.0 (2.8)

Snow Clearing Width - in. (cm) 20 (50.8) Chute

Rotation Angle

Impeller

Diameter - in. (cm) 12 (30.5) Speed-RPM-Max (min-1)

Auger

Diameter - in. (cm) 11.0 (27.98) Speed-RPM-Max (min-1)

Auger Brake Yes Drive Clutching Wet Sump Gearbox

Speeds 1 Forward

Pneumatic Tires - in. 10 Size and Weight

Height - in. (cm) 43.13 (109.53) Length - in. (cm) 51.25 (130.18) Width - in. (cm) 22.38 (56.84) Weight - lb (Kg) 125 (56.7) 120 (54.4) 121 (54.8)

Maintain or replace safety and instruction labels, as necessary.

NEVER store unit with fuel in fuel tank, inside a building where any ignition sources are present such as hot water heaters, space heaters, or clothes dryers. Allow the engine to cool before storing in any enclosure.

For extended storage, clean unit thoroughly. See Engine Manual for proper storage.

Use only attachments or accessories designed for your unit.

Check components frequently. If worn or damaged, replace with manufacturer’s recommended parts.

3600 ± 150

200°

1200

120

3 - 10

Page 11

4.1 CONTROLS AND FEATURES

SECTION 4 - GENERAL MAINTENANCE & ADJUSTMENTS

1. Attachment Clutch Lever

2. Traction Drive Clutch Lever

3. Chute Handle (939001, 002)

4. Discharge Chute Deflector

5. Discharge Chute

6. Impeller

7. Clean-Out Tool

8. Auger

9. Scraper Blade

10.Auger Gear Case

11. Oil Fill and Dipstick

12.Gas Tank and Cap

13.Electric Starter (93900 1)

14.Recoil Starter Handle

15.Primer Bulb

16.Oil Drain Plug

17.Throttle (Engine Stop)

18.Ignition Switch (push-pull)

19.Choke

20.Spark Plug and Wire

21.Runner(s)

22.Belt Cover

23.Handlebar

OS7350

Figure 3

OS7355

4 - 11

Page 12

Ariens dealers provide any service or adjustments

Service Position

OS7125

Figure 4

required to keep your unit operating at peak efficiency. Should engine service be required, contact an Ariens dealer or an authorized engine manufacturer's service center.

WARNING: AVOID INJURY. Read and understand the entire Safety section before proceeding.

4.2 SERVICE POSITION

WARNING: Before tipping unit up onto housing,

remove fuel so no spills will occur and remove battery (if equipped). Ensure unit is secure and will not tip over during maintenance.

Place unit on a flat level surface. Tip machine forward onto front of impeller housing for service as shown in Figure 4. Assure unit is secure and will not tip over. Strap and clamp onto bench if needed.

NOTE: Machine should remain in horizontal position to service attachment and drive belts. Do not tip machine forward.

4.4 STARTING AND SHUTTING OFF

WARNING: FAILURE TO FOLLOW

INSTRUCTIONS could result in personal injury and/or damage to unit. DO NOT attempt to start your unit at this time. Read entire Owner/ Operator Manual and the Engine Manual first.

IMPORTANT: Allow unit and engine to adjust to outdoor temperatures before clearing snow. Before shut-off, run the attachment a few minutes to prevent freeze-up.

IMPORTANT: Try each control without the engine running to see how it works and what it does.

Manual Start

1. Turn discharge chute straight ahead.

2. Make sure that the traction clutch and attachment drive clutch levers are fully disengaged.

3. Push primer bulb 2 or 3 times for cold engine.

NOTE: When temperature is below -15° F (-26° C) additional priming may be needed.

4. If engine is cold, apply choke. See Engine Manual for detailed instructions.

NOTE: A warm engine requires less choking than a cold engine.

5. Set throttle to proper starting position.

6. Insert key into ignition switch and push into RUN position. DO NOT twist key after it is inserted.

7. Grasp starter handle and pull rope out slowly until it pulls harder. Let rope rewind slowly.

8. Pull rope with a rapid continuous full arm stroke. Let rope rewind slowly.

IMPORTANT: DO NOT let starter handle snap against starter.

9. Repeat steps 7 and 8 until engine starts. (If engine does not start, refer to Troubleshooting.)

10.Adjust choke as needed.

1 1.Set throttle to PART THROTTLE or SLOW position

for adaptation to outside temperature or travel. Set throttle to FAST position for normal operation.

4.3 STOPPING IN AN EMERGENCY

Immediately release both control levers to stop unit in an emergency. Stop engine, remove key and wait for all rotating parts to stop before leaving operator’s position.

Electric Start

1. Connect extension cord to prongs on starter.

IMPORTANT: Prevent damage to unit. Know voltage of your starter and use only matching outlets.

2. Plug extension cord into 120V or 240V 3-wire, grounded outlet.

3. Turn discharge chute straight ahead.

4. Make sure that the traction clutch and attachment drive clutch levers are fully disengaged.

5. Push primer bulb 2 or 3 times for cold engine.

NOTE: When temperature is below -15° F (-26° C) additional priming may be needed.

4 - 12

Page 13

6. Insert key into ignition switch on engine and push into RUN position. DO NOT twist key after it is inserted.

7. If engine is cold, apply choke. A warm engine requires less choking than a cold engine. See Engine Manual for detailed instructions.

8. Set throttle to proper starting position.

9. Press starter button on engine until engine starts.

IMPORTANT: DO NOT operate starter more than 15 seconds per minute, as overheating and damage can occur. (If engine does not start, refer to Troubleshooting.)

10.Adjust choke as needed.

11.Disconnect extension cord from outlet first, then starter.

12.Set throttle to PART THROTTLE or SLOW position for travel or adaptation to outside temperature. Once achieved, set throttle to FAST position for normal operation.

Shut Off

1. Release traction drive clutch lever and allow unit to come to a complete stop.

2. Run Impeller a few minutes after use to keep impeller from freezing up.

3. Release attachment clutch lever and wait for all moving parts to come to a complete stop.

4. Move throttle to STOP position.

5. Remove key.

7. ALWAYS clean up any spilled fuel. WARNING: POTENTIAL HAZARD! Fuel is

extremely flammable and highly explosive. Personal injury and property damage may result if not handled properly.

• Fill the fuel tank outdoors in an open area.

• Do not fill when the engine is hot. Wipe up any fuel spills.

• Never fill the fuel tank completely full. Empty space in tank allows fuel to expand.

• Never smoke when handling fuel. Stay away from open flames. Fuel fumes can be ignited by sparks.

4.6 PRE-START

Frozen Impeller

IMPORTANT: Before starting engine, check impeller to

be sure it is not frozen. To check impeller:

1. With key in STOP position, squeeze attachment clutch lever to engaged position.

2. Pull recoil starter handle. If you cannot pull handle, impeller is frozen.

3. If impeller is frozen, move unit to a heated area and thaw to prevent possible damage.

4.5 FUEL TANK

To add fuel to the fuel tank:

1. ALW AYS place unit in open or well- ventilated area.

2. Stop engine and allow to cool.

3. Clean fuel cap and surrounding area to prevent dirt from entering fuel tank.

4. Remove cap.

IMPORTANT: DO NOT use gasohol or gasoline containing alcohol. See Engine Manual for correct type and grade of fuel.

5. Fill fuel tank to within 1/2 in. (1.2 cm) below bottom of filler neck with unleaded gasoline.

NOTE: Tank capacity is 2.0 (1.96) for 939001 or 939002, 3.0 (2.8) for 939300.

6. Replace fuel cap and tighten.

4 - 13

Page 14

4.7 MAINTENANCE SCHEDULE

1.Auger Gear Case

2. Filler Plug

3. Auger Shaft

OS1870

Figure 5

The chart below shows the recommended maintenance schedule that should be performed on a regular basis. More frequent service may be required.

Service Performed Each

Use

Check Fasteners Check Clutch

Operation

Every 5 hrEvery

•

Yearly

25 hr

Check Clutch Spring

* •

Adjustments Clean Engine Check Engine Oil Change Engine

Oil Check Tire

Pressure Check Auger

Gear Case General

Lubrication

•

** •

•

• •

* After first five hours of operation. ** After first two hours of operation.

Check Fasteners

Make sure all hardware is tightened properly.

Change Engine Oil

Change oil after first 2 hours of operation; thereafter, change oil every 25 hours (more often if required). Refer to Engine Manual for detailed instructions.

Run engine a few minutes just before changing oil. Warm oil will flow more freely and carry away more contamination. Place a suitable container under the oil drain plug. Remove the oil drain plug from the rear of the unit and tip the unit back to help drain all the oil.

Check Tire Pressure

Keep tires at pressure listed on the tire sidewall.

Check Auger Gear Case

IMPORTANT: Proper oil level must be maintained.

Gear cases are filled to the correct level at the factory. Unless there is evidence of leakage, no additional lubricant should be required. Check oil level each season or every 25 hours of operation.

To ensure adequate lubricant level:

1. Remove filler plug (Figure 5). Lubricant must be at least up to bottom of lubricant filler hole with unit resting on a level-surface.

2. Add lubricant if required. Allow oil to drain to level of plug and replace plug.

IMPORTANT: Use only Ariens special gear lubricant L-2 (Part Number 00008000). Gear case filler plug may require an application of Loc-Tite® 565 thread sealant with repeated servicing.

Check Clutch Operation

Auger and impeller must stop within 3 seconds when attachment clutch/impeller brake lever is released.

Wheels must stop quickly when traction drive clutch lever is released.

If clutches do not engage or disengage properly, adjust or repair before operation (see

“Attachment Clutch/ Brake Adjustment” on page 18 or “Traction Drive Clutch Adjustment” on page 19).

Check Clutch Spring Adjustment

Make sure the attachment clutch and traction drive clutch are adjusted to the range specified in “Attachment Clutch/Brake Adjustment” on page 18 or “Traction Drive Clutch Adjustment” on page 19

Clean Engine

Refer to Engine Manual for detailed instructions.

Check Engine Oil

Check engine crankcase oil every 5 hours of operation. Oil level MUST be maintained in safe operating range on dipstick at all times or engine damage will result (See Engine Manual).

Park unit on a level surface. Refer to Engine Manual for detailed instructions.

General Lubrication

IMPORTANT: Wipe each fitting clean before and after

lubrication. Do not wipe gear case filler plug; wiping the gear case filler plug may remove thread sealant and cause leaks.

IMPORTANT: DO NOT allow grease or oil to get on the belts.

NOTE: Apply Ariens Hi-Temp Grease or equivalent to the lubrication fittings. See

“Service Parts List” on

page 32. Lubricate Sno-Thro at the beginning of the season or

every 25 operating hours, whichever comes first.

4 - 14

Page 15

Auger Shaft

OS1374

Grease

Oil

Figure 6

Figure 7

1.Blower Housing

2. Belt Cover

3. Frame

4. Belt Cover Screw

5. Housing Bolt Holes

OS7400

Figure 8

1.Attachment Drive Belt

2. Engine Sheave

3. Traction Drive Belt

4. Attachment Idler Nut

5. Attachment Belt Idler

6. Belt Finger

OS7410

To grease auger shaft, remove shear bolt nuts and shear bolts. Appl y grea se at the gr ease zerks and t hen rotate the auger shaft. Replace shear bolts per instructions in

“Shear Bolts” on page 17.

4.8 ATTACHMENT DRIVE BELT REPLACEMENT

Remove Attachment Drive Belt

(Figures 7 and 8)

1. Shut off engine, remove key, disconnect spark plug

2. Remove two screws securing belt cover to unit and

3. Remove belt fingers by removing cap screws

IMPORTANT: To avoid bending bottom cover, remove the cover before separating the blower housing from the unit.

4. Support Sno-Thro frame and housing.

5. Remove top two cap screws and loosen lower two

6. Remove attachment drive belt from engine sheave

7. Separate housing from unit. Lower handlebar to

8. Remove attachment drive belt from lower pulley.

wire and allow unit to cool completely. remove belt cover. mounting belt fingers to engine (

Figure 8).

CAUTION: Always support Sno-Thro frame and housing when loosening the cap screws holding them together. Never loosen cap screws while unit is in service position.

cap screws holding blower housing to frame (one on each side).

(it may be necessary to turn engine sheave using recoil starter handle).

floor.

4 - 15

Page 16

Replace Attachment Drive Belt

1/8–3/16 in. (3.2–4.8 mm)

1.Belt Finger

2. Belt

1/8–3/16 in. (3.2–4.8 mm)

Figure 9

OS7415

Position the traction drive belt on the engine sheave like this when removing and installing it.

Figure 10

OS7420

1. Place new belt onto lower pulley.

2. While holding brake out of way, tip unit together.

NOTE: Engage attachment clutch lever while connecting housing to frame to hold brake out of the way.

3. Attach blower housing to frame with cap screws removed in step Belt” on page 15.

4. Place belt onto engine sheave.

5. Replace belt fingers.

IMPORTANT: BELT FINGERS MUST BE SET as shown in

Figure 9. Improper adjustment may cause impeller to rotate while attachment clutch is disengaged.

6. Adjust clutch per instructions under “Attachment Clutch/Brake Adjustment” on page 18.

7. Replace belt cover and secure with cap screws.

5 of “Remove Attachment Drive

NOTE: To make belt removal easier, slowly pull the recoil starter while pushing the traction drive belt off the engine pulley.

4. Remove traction drive belt from the unit and discard.

5. Place new traction drive belt on engine pulley between the engine and pulley groove as shown in Figure 10.

6. Place new traction drive belt on transmission pulley

7. Push the new traction drive belt onto the grooves in the engine pulley.

NOTE: Slowly pull the recoil starter while pushing the traction drive belt onto the engine pulley. Make sure the belt seats properly in the grooves of the transmission and engine pulleys.

8. Replace attachment drive belt (See “Traction Drive Belt Replacement” on page 16).

9. Check traction drive clutch adjustment. See “Traction Drive Clutch Adjustment” on page 19.

4.9 TRACTION DRIVE BELT REPLACEMENT

NOTE: Housing and frame must be tipped apart and

attachment drive belt removed from engine sheave in order to change traction drive belt (Figure

CAUTION: Always support Sno-Thro frame and blower housing when loosening the cap screws holding them together. Never loosen

7).

cap screws while unit is in service position.

1. Shut off engine, remove key, disconnect spark plug wire and allow unit to cool completely.

2. Remove attachment drive belt (See “Remove Attachment Drive Belt” on page 15).

3. Push the traction drive belt off the engine pulley toward the engine as shown in

Figure 10.

4 - 16

Page 17

4.10 SHEAR BOLTS

1.Auger

2. Shear Bolts

Figure 11

OS7370

SECTION 5 - SERVICE AND ADJUSTMENTS

Adjusting Hardware

OS1113

Discharge

Chute Deflector

Figure 12

1.Carriage Bolt

2. Spring

Figure 13

OS7375

IMPORTANT: Use only Ariens shear bolts for replacement. Use of any other type of shear bolt may result in severe damage to unit.

Occasionally a foreign object entering the blower housing may jam the auger and break the shear bolts (

Figure 11) that secure the auger to the shaft. Breaking the shear bolts prevents damage to the gear drive by allowing the auger to turn freely on the shaft.

Shear Bolt Replacement

1. Align shear bolt holes in auger with shear bolt holes in shaft.

2. Drive shear bolt through hole. (If shear bolt was broken, this will drive remaining part from shaft.)

3. Secure shear bolt with nut.

NOTE: DO NOT overtighten the shear bolt. Tighten shear bolt to 5.8

– 12.2 lbf-ft (7.9 – 16.5 N•m).

4.11 TIRE PRESSURE

Keep tires inflated to pressure listed on the tire sidewall.

5.1 DISCHARGE CHUTE DEFLECTOR

The deflector must stay in selected position while throwing snow.

To adjust, loosen then retighten hardware to desired deflector drag force (

Figure 12).

5.2 DISCHARGE CHUTE

If chute does not stay in position while operating, tighten nut on carriage bolt at pivot point to increase tension on spring (

Figure 13).

5 - 17

Page 18

5.3 RUNNERS

OS0482

1.Runner

2. Runner Hardware

Figure 14

Attachment Clutch Lever

OS0458

(14,3 cm - 15,9 cm)

5-5/8 - 6-1/4 in.

Figure 15

Figure 16

3. Attachment Clutch Cable

4. Jam N ut

5. Adjustment Barrel

OS7385

Runners should be adjusted as co nditio ns requi re (

Figure 14).

1. Position unit on a hard, flat, smooth level surface.

2. Adjust runners by inserting a spacer of desired thickness under center of scraper blade, loosen runner hardware, slide runners to flat surface. Allow 1/8 hard smooth surfaces. Allow 1-1/4 between scraper blade and uneven or gravel surfaces. Retighten hardware.

NOTE: Keep housing level by adjusting runners equally.

in. (3 mm) between scraper blade and

in. (30 mm)

CAUTION: The at tac hment clut ch cabl e must be slightly slack when the clutch lever is disengaged. The attachment brake will not function properly if the cable is too taut.

2. Loosen jam nut on attachment clutch cable adjustm ent barrel (

Figure 16).

Turn adjustment barrel up the cable to decrease the distance between clutch lever and handlebar.

Turn the adjustment barrel down the cable to increase the distance between clutch lever and handlebar.

5.4 ATTACHMENT CLUTCH/BRAKE ADJUSTMENT

WARNING: IMPROPER ADJUSTMENT

could result in unexpected movement of auger and impeller, causing death or serious injury. AUGER / IMPELLER MUST STOP within 3 seconds when Attachment Clutch/ Impeller Brake Lever is released.

1. Check attachment clutch lever measur eme nt:

WARNING: Adjustment procedure requires running engine with the belt cover off. AVOID INJURY. Read and understand the entire Safety section before proceeding.

a. Start engine and run at full throttle. b. Slowly squeeze the attachment clutch lever

until auger shaft begins to rotate.

c. Measure the distance from the end of clutch

lever to the handlebar as shown in The distance between the end of the clutch lever and the handlebar should be 5-5/8 - 6-1/4

in. (14.3 - 15.9 cm). d. Shut off engine. e. If clutch lever measurement is within specified

range, no adjustment is necessary. If clutch

lever measurement is outside the specified

range, follow steps 2 - 7.

Figure 15.

3. Check attachment clutch lever measurement and tighten the jam nut on the attachment clutch cable adjustment barrel when the clutch lever measurement is in range. Proceed to step

If clutch cannot be adjusted to specified range with the cable adjustment alone, perform steps

5 - 18

4 – 5.

Page 19

4. Remove two screws securing belt cover to unit and

Figure 17

1.Drive Brake

2. Brake Shoe and Pad

1/16 in.

(1,6 mm)

OS7390

OS2490

Figure 18

Traction Clutch Lever

6-1/8 – 6-3/4 in.

(15.5 – 17.1 cm)

Figure 19

1.Traction Clutch Cable

2. Jam Nut

3. Adjustment Barrel

1 3

OS7395

remove belt cover.

5. Adjust the attachment idler position. a. Loosen attachment idler nut (Figure 8). b. To increase distance betw een clutch lever

and handlebar, move the idler towards the attachment belt.

c. To decrease the distance between the clutch

lever and handlebar, move the idler away

from the attachment belt. d. Tighten idler adjustment nut. e. Check clutch lever measurement.

6. Check Brake When the clutch lever is disengaged, the brake

must contact the attachment belt. When the clutch lever is engaged, the brake must

be more than 1/16 in. (1.6 belt and must not contact the frame (

mm) away from the

Figure 17).

To test traction clutch (Figure 18):

1. Without engine running, push unit forward while slowly moving the traction drive clutch lever toward the handlebar.

2. Measure distance between lever and handlebar when the wheels begin to brake. If distance is not 6-1/8 – 6-3/4 in. (15.5 – 17.1

cm), adjust the

traction clutch.

To adjust traction clutch (Figure 19):

1. Loosen jam nut on traction clutch cable adjustment barrel.

Turn adjustment barrel up the cable to decrease the distance between clutch lever and handlebar.

Turn the adjustment barrel down the cable to increase the distance between clutch lever and handlebar.

2. Check traction clutch lever distance and repeat adjustment steps if necessary.

3. Tighten jam nut on traction cable adjustment barrel.

7. Repeat steps 5 – 6 until attachment clutch lever distance and brake contact are correct.

IMPORTANT: If attachment clutch/brake cannot be adjusted within tolerances, see your Dealer for repairs.

8. Check belt finger clearance.

With clutch lever engaged, belt fingers should be positioned as shown in fingers as necessary.

Figure 9. Adjust belt

9. Replace belt cover.

10.Check that auger/impeller stops within 3 seconds after attachment clutch/impeller brake lever is released.

5.5 TRACTION DRIVE CLUTCH ADJUSTMENT

IMPORTANT: Operating the unit with the traction drive

clutch improperly adjusted will damage the transmission. Make sure the clutch is adjusted to the specifications listed.

5 - 19

Page 20

6.1 INSPECT LOWER HANDLEBAR

SECTION 6 - HANDLEBARS & CONTROLS

Figure 20

1.Upper Handlebars

2. Bolt w/Nut, Spacer and Washers

3. Lower Handlebars

4. Bolts

5. Frame

PS0350-1

1. Remove bolts attaching lower handlebar to each side of frame (2 places, each side) (see

2. Remove handlebar assemb ly.

3. Check lower handlebar parts for wear or replacement

4. Assemble, using reverse procedure.

Figure 20).

6.3 TRACTION DRIVE CLUTCH LEVER AND CABLE

Clutch Lever

Figure 21

1. Remove jam nut and flat washer from bolt.

2. Remove bushings and torsion spring.

3. Remove retaining ring and traction cable

4. Remove clutch lever.

5. Check parts for wear or replacement.

6. Assemble, using reverse procedure. Attach cable to bolt during assembly.

7. Adjust clutch lever position if necessary (see “Traction Drive Clutch Adjustment” on page 19).

Traction Drive

Figure 21

1. Remove clutch lever from upper handlebar (See preceding

2. Slide cable off bolt.

3. Disconnect cable spring from control under frame.

4. Check cable for wear. Replace if necessary

5. Assemble, using reverse procedure.

NOTE: BE sure to route cable over small pulley mounted to frame

6. Adjust clutch lever position if necessary (see “Traction Drive Clutch Adjustment” on page 19).

Clutch Lever for procedure.)

6.2 REPLACE LOWER HANDLEBAR

Figure 20

1. Remove locking nuts, lock washers, washers, and spacers from bolt attaching upper handlebars to lower handlebars (2 places, each side).

2. Lay upper handlebars and control panel on bench or ground.

NOTE: Removing control cables is not necessary to replace lower handlebar s.

3. Remove bolts attaching lower handlebar to each side of frame (2 places, each side).

4. Remove lower handlebar.

5. Install new lower handlebar using reverse procedure.

6. Attach upper handlebars to lower handlebars.

6 - 20

Page 21

Figure 21

1.Bolt (2-1/2")

2. Flange Bushing

3. Clutch Lever (Right Hand)

4. Jam Nut

5. Flat Washer

6. Sleeve Bushing

7. Bushing

8. Torsion Spring

9. Retaining Ring

10.Tractio n Cable

11. Clutch Lever (left Hand)

12.Bolt (3-1/4")

13.Attachment Cable

14.Spring

15.Pulley

16.Bolt w/nut

17.Lower Handle

PS0350-2

6.4 ATTACHMENT CONTROL LEVER AND CABLE

Attachment Lever

Figure 21

1. Remove jam nut and flat washer from bolt.

2. Remove bushings and torsion spring.

3. Remove retaining ring and traction cable

4. Remove clutch lever.

5. Assemble, using reverse procedure. Attach cable to bolt during assembly.

6. Adjust clutch lever position if necessary (see “Attachment Clutch/Brake Adjustment” on page 18).

Attachment Cable

Figure 21

1. Remove clutch lever from upper handlebars (See preceding

2. Slide cable off bolt.

3. Disconnect cable spring from control under frame.

4. Check parts for wear or replacement.

5. Assemble, using reverse procedure.

6. Adjust clutch lever position if necessary (see page 18).

6 - 21

Attachment Lever for procedure.)

“Attachment Clutch/Brake Adjustment” on

Page 22

7.1 ENGINE TROUBLESHOOTING

SECTION 7 - ENGINE

The following troubleshooting chart is to be used to isolate engine problems and give possible causes and corrective action responses.

ENGINE TROUBLESHOOTING

PROBLEM PROBABLE CAUSE CORRECTION

Black Exhaust Restriction in air cleaner Remove obstruction

Poor compression Repair per ins tructions in manufacturer’s manual Incorrect grade of fuel Use fuel recommended in manufacturer’s manual Leaking cylinder head gasket Replace per instructions in manufacturer’s manual Sticking valves Repair per ins tructions in manufacturer’s manual Worn cylinder bores Repair per ins tructions in manufacturer’s manual Pitted valves and seats Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual

Blue/White Exhaust Incorrect grade of lubricating oil Use oil recommended in manufacturer’s manual

Poor compression Repair per ins tructions in manufacturer’s manual Leaking cylinder head gasket Replace per instructions in manufacturer’s manual Worn cylinder bores Repair per ins tructions in manufacturer’s manual Worn valve stem guides Repair per instructions in manu facturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual

Difficult Starting Restriction in air cleaner Remove obstruction

Low cranking speed Check connections to electric start (if applicable) Controls not in correct operat ing posit ion Reset controls Blocked fuel feed line Remove obstruction Choked fuel filter Clean or replace filter Poor compression Repair per ins tructions in manufacturer’s manual Blocked fuel tank vent Remove obstruction Incorrect grade of fuel Use fuel recommended in manufacturer’s manual Sticking valves Repair per ins tructions in manufacturer’s manual Worn cylinder bores Repair per ins tructions in manufacturer’s manual Pitted valve stems and seats Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual

Erratic Running Restriction in air cleaner Remove obstruction

Controls not in correct operat ing posit ion Reset controls Blocked fuel feed line Remove obstruction Choked fuel filter Clean or replace filter Poor compression Repair per ins tructions in manufacturer’s manual Blocked fuel tank vent Remove obstruction Sticking throttle/restricted movement Lubricate or replace Overheating Allow to cool; determine cause Sticking valves Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual Broken valve spring Repair per ins tructions in manufacturer’s manual Bad spark plugs Install new spark plugs

The troubleshooting key is generic and can be used for several types of engines. Use only those possible causes and corrective actions that apply to the unit.

7 - 22

Page 23

ENGINE TROUBLESHOOTING

PROBLEM PROBABLE CAUSE CORRECTION

Excessive F uel Consumption

High Oil Pressure Incorrect grade of lubricating oil Use oil recommended in manufacturer’s manual

Knocking Incorrect grade of fuel Use fuel recommended in manufacturer’s manual

Loss of Power or System Restriction in air cleaner Remove obstruction

Low Cranking Power Bad electrical connection Check connections to electric start (if applicable)

Low Oil Pressure Incorrect grade of lubricating oil Use oil recommended in manufacturer’s manual

Misfiring Choked fuel filter Remove obstruction

Overheating Restriction in air cleaner Remove obstruction

Restriction in air cleaner Remove obstruction Poor compression Repair per ins tructions in manufacturer’s manual Incorrect grade of fuel Use fuel recommended in manufacturer’s manual Sticking throttle/restricted movement Lubricate or replace Leaking cylinder head gasket Repair per instructions in manufact urer’s manual Worn oil p ump Repair per ins tructions in manufacturer’s manual Worn cylinder bores Repair per ins tructions in manufacturer’s manual Pitted valve stems and seats Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual

Pressure relief valve sticking clos ed Repair or replace spring

Overheating Allow to cool; determine cause Sticking valves Repair per ins tructions in manufacturer’s manual Worn cylinder bores Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual Worn or damaged bearings Repair per ins tructions in manufacturer’s manual Incorrect piston height Adjust per instructions in manufacturer’s manual Broken valve spring Replace per instructions in manufacturer’s manual

Blocked fuel feed line Remove obstruction Choked fuel filter Remove obstruction Poor compression Repair per ins tructions in manufacturer’s manual Blocked fuel tank vent Remove obstruction Incorrect grade of fuel Use fuel recommended in manufacturer’s manual Sticking throttle/restricted movement Lubricate or replace Leaking cylinder head gasket Replace per instructions in manufacturer’s manual Overheating Allow to cool; determine cause Worn cylinder bores Repair per ins tructions in manufacturer’s manual Pitted valve stems and seats Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual

Faulty starter motor (if applicable) Replace per instructions in manufacturer’s manual Incorrect grade of lubricating oil Use oil recommended in manufacturer’s manual

Worn or damaged bearings Replace per instructions in manufacturer’s manual Insufficient oil in sump Refill with oil Oil pump worn Replace per instructions in manufacturer’s manual

Poor compression Repair per ins tructions in manufacturer’s manual Leaking cylinder head gasket Replace per instructions in manufacturer’s manual Overheating Allow to cool; determine cause Incorrect tappet adjustment Adjust per instructions in manufacturer’s manual Sticking valves Repair per ins tructions in manufacturer’s manual Pitted valves and seats Repair per ins tructions in manufacturer’s manual

Incorrect valve timing Adjust per instructions in manufacturer’s manual Leaking cylinder head gasket Replace per instructions in manufacturer’s manual

7 - 23

Page 24

ENGINE TROUBLESHOOTING

PROBLEM PROBABLE CAUSE CORRECTION

Poor Compression Leaking cylinder head gasket Replace per instructions in manufacturer’s manual

Incorrect tappet adjustment Adjust per instructions in manufacturer’s manual Sticking valves Repair per ins tructions in manufacturer’s manual Worn cylinder bores Repair per ins tructions in manufacturer’s manual Pitted valves and seats Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston ring(s) Repair per ins tructions in manufacturer’s manual Worn valve stems and guides Repair per ins tructions in manufacturer’s manual Broken valve spring Replace per instructions in manufacturer’s manual

Starts and Stops Restri cti on in air clean er Remove obstruction

Fuel tank empty Fill tank Choked fuel filter Remove obstruction Bad spark plugs Replace spark plugs; see manufacturer’s manual

for recommendations

Vibration Poor compression Repair per instructions in manufacture r’s manual

Sticking throttle/restricted movement Lubricate or replace Leaking cylinder head gasket Replace per instructions in manufacturer’s manual Overheating Allow to cool; determine cause Sticking valves Repair per ins tructions in manufacturer’s manual Broken, worn, or sticking piston rings Repair per ins tructions in manufacturer’s manual Incorrectly aligned flywheel and/or

flywheel housing Will Not Crank Bad electrical connection Check connections to electric start (if applicable) Will Not Start Restriction in air cleaner Remove obstruction

Choked fuel filter Remove obstruction

Bad spark plugs Replace spark plugs; see manufacturer’s manual

Adjust per instructions in manufacturer’s manual

for recommendations

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Page 25

7.2 ENGINE REMOVAL

Figure 22

2 43

11 12

1.Frame

2. Engine

3. Engine Shaft

4. Belt Cover

5. Belt Finger

6. Drive Pulley

7. Drive Belt

8. Attachment Pulley

9. Attachment Belt

10.Flat Washer

11. Locking Washer

12.Bolt

13.Engine Mounting Bolt (typical of 4)

PS0330-1 )S7350

Figure 22

10.Remove the four mounting bolts from the engine base.

11.Lift engine from mounting base and set to side.

CAUTION: Remove fuel from fuel tank before removing engine.

1. Drain gasoline.

2. Separate blower housing from frame (see Figure

7).

3. Block frame front and back so it will not tip.

4. Remove belt cover.

5. Remove attachment belt and drive belt from the engine pulleys. For instructions, see "

Attachment Drive Belt Rep l ac em e nt" on page 15 and "Traction Drive Belt Replacement" on page 16.

6. Remove bolt, lock washer, and flat washer securing pulleys to engine shaft.

7. Loosen and slide pulleys off engine shaft.

8. If the unit has a bracket at the top of the engine for chute/deflector controls, unbolt it.

9. If the unit is equipped with electric starting, remove the starter.

7.3 ENGINE INSTALLATION

Figure 22

1. Block frame so it will not tip.

2. Position engine in frame.

3. Insert mounting bolts and tighten.

4. If equipped with electric start, install the starter.

5. Re-attach any brackets for chute/deflector controls.

6. Install pulleys on engine shaft.

7. Install belts. For instructions, see "Attachment Drive Belt Replacement" on page 15 and "Traction Drive Belt Replacement" on page 16.

8. Adjust engine pulleys to align with attachment and drive pulleys.

9. Tighten pulleys

10.Install belt cover.

11.Connect blower housing to frame.

7 - 25

Page 26

The transmission has no dealer-serviceable parts. If

SECTION 8 - TRANSMISSION

Figure 23

PS0330_2

1.Frame

2. Locking Nut (typical of 3)

3. V-Belt (stretch fit)

4. Transmission Pulley

5. Axle Shaft

6. Bolt and Nut

7. Gear

8. Transmission Mounting Bolt and Flat Washer (typical of 3)

9. Transmission

10.Wheel

11. Bolt and Nut

12.Flat Washer

13.Axle Bushing (1 each side)

defective, it must be replaced as a unit.

8.1 TRANSMISSION REMOVAL

Figure 23

1. Shut off engine, remove key, disconnect spark plug wire, and allow unit to cool completely.

CAUTION: Remove fuel from fuel tank before placing unit in service position.

2. Drain gasoline.

3. Place machine on a level surface, and tip up into service position (see

4. Remove both wheels.

5. Remove nut and bolt holding axle gear in place.

6. Remove axle bushings. Discard if worn.

7. Remove axle

8. Remove drive belt from transmission pulley

9. Remove bolts securing transmission to frame

10.Remove transmission.

Figure 4 on page 12).

8.2 TRANSMISSION INSTALLATION

Figure 23 IMPORTANT: Before beginning installation, make sure

that:

• Key is removed from switch.

• Spark plug is disconnected.

• Machine is cool.

• Gasoline has been drained from tank.

1. If necessary, place machine on a level surface, and tip up into service position (see

12).

2. Bolt transmission to frame.

3. Attach drive belt to transmission pulley.

IMPORTANT: Make sure drive belt is properly aligned with transmission pulley and engine pulley.

4. Install axle gear on axle. Do not tighten nut onto bolt.

5. If necessary, install new axle bushings.

6. Install axle.

7. Align axle gear with transmission sprocket as required.

8. Tighten nut onto bolt holding gear to axle.

9. Install wheels.

Figure 4 on page

8 - 26

Page 27

SECTION 9 - AUGER/IMPELLER

Figure 24

1.Auger Drive Pulley

2. Bolt

3. Locking Washer

4. Auger Drive Shaft

5. Blower Housing

6. Tapping Screw (3 each side)

7. Flange Bushing

8. Shaft Bushing

9. Auger

10.Shear Bolt

PS0361-1

WARNING: Stop engine, remove key, wait for moving parts to stop and remove wire from spark plug before leaving operator’s position and attempting to maintain or inspect auger.

9.1 AUGER/IMPELLER REPAIR

1. Place machine on a flat, level surface.

NOTE: Placing blocking under the runners on the blower housing may make auger removal easier.

2. Remove bolt holding auger drive pulley to shaft and remove pulley.

3. Remove three tapping screws holding shaft bushing to blower housing and remove flange on each side.

4. Grasp auger assembly and pull gear case and auger/impeller assembly free of housing.

5. Remove shear bolts and remove auger from shaft.

6. Check all parts for wear or replacement.

7. Assemble, using reverse procedure.

9.2 SHEAR BOLTS

IMPORTANT: Use only Ariens shear bolts for

replacement. Use of any other type of shear bolt may result in severe damage to unit.

Occasionally an object may enter auger/impeller housing and jam auger, breaking shear bolts which secures auger to shaft. This prevents damage to gear drive by allowing auger to turn freely on shaft.

To replace shear bolt:

1. Slide auger outward and align hole in shaft with hole in auger ( pins and shear bolts will line up.

2. Drive the new shear bolt through hole (if shear bolt was broken this will drive remaining part from shaft).

3. Secure with nut.

9 - 27

Figure 24). The holes in shaft for roll

Page 28

9.3 DISCHARGE CHUTE

1.Discharge Chute

2. Handle

3. Bolt

4. Nut and Washers

5. Blower Housing

6. Bolt with Washer

7. Pedestal

8. Locking Nut

9. Flat Washer

10.Spring

11.Friction Plate

12.Friction Washer

13.Flat Washer

14.Bolt

15.Direction Handle

Figure 25

Ps0373-1

Models 939001 and 939002. Figure 25

WARNING: DO NOT put hands or feet near or under rotating parts. Keep clear of discharge opening at all times.

WARNING: NEVER direct discharge of material toward bystanders nor allow anyone in front of equipment while unit is in operation. Be familiar with area of operation.

1. Remove bolts holding chute pedestal to blower housing.

2. Lift chute and pedestal from housing.

3. Check parts for wear, and replace as needed.

4. Assemble in reverse order.

9 - 28

Page 29

9.4 DISCHARGE CHUTE CRANK

Figure 26

1.Crank Shaft

2. Bushing

3. Self-Tapping Screw

4. Gear Cover

5. Pinion Gear Bracket

6. Bushing

7. Pinion Gear w/Spring Clip

8. Chute Gear

9. Discharge Chute

10.Blower Housing

11.See Figure 25

12.Bolt w/Lock Washer

13.Pedestal

PS0373-2

Model 939300 only or if kit 73900100, Crank Kit, is installed.

Figure 26

WARNING: DO NOT put hands or feet near or under rotating parts. Keep clear of discharge opening at all times.

WARNING: NEVER direct discharge of material toward bystanders nor allow anyone in front of equipment while unit is in operation. Be familiar with area of operation.

1. Remove the cover over the chute gear.

2. Remove the spring clip from the pinion gear, and slide the gear, thrust washer, and bushing off the crank shaft.

3. Slide the crank shaft back through the pinion gear bracket and bracket on the pedestal weldment.

4. Remove bolts holding chute pedestal to blower housing.

5. Lift chute and pedestal from housing.

NOTE: The chute gear is attached to the chute and is removed with the chute and pedestal.

6. Check parts for wear, and replace as needed.

7. Assemble in reverse order.

9 - 29

Page 30

9.5 RUNNER AND SCRAPER

Figure 27

1.Runner

2. Flat Wash er

3. Locking Nut

4. Bolt

5. Scraper

6. Locking Nut

7. Flat washer

PS0361_2

CAUTION: Adjust auger/impeller housing height to clear gravel or crushed rock surfaces.

Runners should be adjusted as co nditio ns requi re (

Figure 27). Raising or lowering runners controls distance scraper blade is held above surface being cleared.

When operating machine on gravel surface, lower runners so the housing will not pick up gravel. On concrete, blacktopped or packed down snow surfaces, raise runners so that scraper blade scrapes clean.

Position unit on a flat level surface. Adjust runners by inserting a spacer of desired thickness under center of scraper blade, loosen hardware, slide runners to flat surface and retighten hardware.

NOTE: Above method keeps housing level by adjusting runners equally. Uneven runners make machine difficult to steer and results in uneven clearing.

9 - 30

Page 31

10.1 ALUMINUM GEAR CASE

SECTION 10 - GEAR CASE

3 4

1516

1920

2223

1.Bolt w/Lock Washer

2. Pulley

3. Bearing Flange

4. Ball Bearing

5. Bearing Flange

6. Impeller (12 in.)

7. Groove Pin

8. Oil Seal

9. Flange Bushing

10.Thrust Collar

11. Shaft and Worm Gear

12.Flat Washer

13.Oil Seal

14.Gear Case (Left Hand)

15.Flange Bushing

16.Flat Washer

17.Sleeve Bushing

18.Gear

19.Flat Washer

20.Flange Bushing

21.Gear Case (Right Hand)

22.Oil Seal

23.T app ing Sc rew (typical of 6)

24.Flat Washer

25.Flange Bushing

26.Woodruff Key

27.Auger Shaft

28.Gear Case Assembly

29.Loctite Gasket 518

30.L2 Lube (16 oz)

Figure 28

PS0381

1. Remove auger/impeller and gear case from housing

(see Auger/Impeller Repair on page 27).

2. Remove six tapping screws that hold right and left gear case halves together (

Figure 28).

3. If flange bushings need replacement: a. Remove oil seals from outside of gear case

halves with a screwdriver.

b. Very lightly, press flange bushings from

outside in with a bearing driver. Make sure the flat on the flange of bushing fits in the inside notch of the case.

c. Replace oil seals.

4. Check all internal parts for wear, and replace if necessary.

NOTE: A woodruff key holds the worm gear on rake shaft.

5. Slide bronze bushing off front of worm gear shaft. Replace if necessary. A flat on the bushing flange positions the bearing inside the gear case.

6. Replace the seal behind the rear bronze bushing. It fits into a groove in gear case.

7. Replace the rear bushing if necessary. It is a larger diameter than one in front, but it is identical in design.

8. If thrust collar needs replacing, drive out groove pin in direction of least resistance.

9. Inspect worm gear shaft for burrs or black coloration. If either show up, replace shaft.

10 - 31

Page 32

10.Before re-assem bl ing gear ca se : a. Clean mating surfaces of gear case. b. Apply Loctite gasket to cleaned surface. c. Allow to cure for 24 hours. d. Make sure the flats on the bushings are in their

proper places.

11.Reassemble gear case.

After assembly is complete you should be able to turn input shaft freely.

12.Fill gear case with lubricating oil (Ariens L-2, P/N

00008000): a. Remove filler pl ug. b. Fill gear case with oil. c. With machine sitting level, check oil level.

Lubricating oil should be even with filler plug hole.

NOTE: Inserting a wire into the hole may be necessary to check level. Over-lubricating will not damage the gear case.

Service Part s List

Order the following parts through your Dealer:

Part No. Description

00036800 Ariens Hi-Temp Grease (3, 3 oz.

cartridges) 21533400 Spark Plug (939001, 002) 21533500 Spark Plug (939300) 07200108 Impeller Belt 07200109 Stretch Fit Traction Belt 53200500 Shear Bolts

10 - 32

Page 33

Ariens Company 655 West Ryan Street P.O. Box 157 Brillion, WI 54110-0157 920-756-2141 Fax 920-756-2407 www.ariens.com

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