Ariens 939002, 939001, 939300 User Manual

939 Sno-Thro

Service Manual Models 939001, 939002, 939300

01920500 12/06

Printed in USA

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

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

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

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:

1 - 5

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

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.

1 - 7

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

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.

1 - 9

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

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