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GB - 3

1. Read and understand all assembly instructions in 

this manual. If you do not understand or have 
difficulty following the instructions, contact your 
nearest Ariens Dealer for assistance. Make sure 
all assembly has been properly completed.

NOTE: To locate your nearest Ariens Dealer, go to 
www.ariens.com on the internet.

2. Understand all Safety Precautions provided in the 

manuals.

3. Review control functions and operation of the 

unit. Do not operate the Sno-Thro unless all 
controls function as described in this manual. 

4. Review recommended lubrication, maintenance 

and adjustments.

5. Review Limited Warranty Policy. 

6. Fill out a Product Registration Card and return the 

card to the Ariens Company or go to 
www.ariens.com.

SAFETY ALERTS

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.

 

NOTATIONS

NOTE: General reference information for proper 
operation and maintenance practices.

IMPORTANT: Specific procedures or information 
required to prevent damage to unit or attachment.

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.

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.

SAFETY DECALS AND LOCATIONS

ALWAYS replace missing or damaged Safety Decals. 
Refer to figure below for Safety Decal locations.

WARNING: Improper assembly or 
adjustments can cause serious injury.

SAFETY

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.

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 moderate injury. It may also be used 
to alert against unsafe practices.

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Figure 2

OS6615

Summary of Contents for 939001 ST520E

Page 1: ...Owner Operator Manual Models 939001 ST520E 939002 ST520 Sno Thro 00582600A 6 06 Printed in USA ENGLISH FRAN AIS...

Page 2: ...ting 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...

Page 3: ...e 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 law...

Page 4: ...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 v...

Page 5: ...e 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 grou...

Page 6: ...ep 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 i...

Page 7: ...from the bottom of the chute pedestal 3 Install discharge chute over opening in the auger housing and secure pedestal to auger housing with hardware removed in step 2 ASSEMBLY WARNING AVOID INJURY Rea...

Page 8: ...o Engine Manual for proper fuel type and tank capacity Check Function of all Controls Ensure unit runs and performs properly Refer to Operation Run in Attachment Belt 1 Start unit in a well ventilated...

Page 9: ...Gearcase 10 Clean out Tool 11 Oil Fill and Dipstick 12 Gas Tank and Cap 13 Electric Starter 939001 14 Recoil Starter Handle 15 Primer Bulb 16 Oil Drain Plug 17 Throttle Engine Stop 18 Ignition Switch...

Page 10: ...y Key Switch has two positions 1 Stop pulled out 2 Run pushed in NOTE DO NOT twist key after it is inserted Primer Bulb Pushing the primer bulb in adds fuel for easier engine start Refer to Starting a...

Page 11: ...trol the distance between the scraper blade and the ground Adjust runners equally to keep blade level with the ground Refer to Pre Start on page 11 for recommended settings FILLING FUEL TANK To add fu...

Page 12: ...utch 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 6 Insert key into ignition switch on engine a...

Page 13: ...ng 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 Ariens Dealers will pro...

Page 14: ...urs more often if required Refer to Engine Manual for detailed instructions Run engine just prior to changing oil Warm oil will flow more freely and carry away more contamination Remove the oil drain...

Page 15: ...Runners should be adjusted as conditions require Figure 11 1 Position unit on a hard flat smooth level surface 2 Adjust runners by inserting a spacer of desired thickness under center of scraper blad...

Page 16: ...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...

Page 17: ...il 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 Wi...

Page 18: ...using recoil starter handle 7 Separate housing from unit Lower handlebar on floor 8 Remove attachment drive belt from lower pulley Replace Attachment Drive Belt 1 Place new belt onto lower pulley and...

Page 19: ...tween the engine and pulley groove as shown in Figure 23 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 pul...

Page 20: ...cate see Maintenance Touch up all scratched painted surfaces Remove weight from wheels by putting blocks under frame or axle When storing unit for extended periods of time remove all fuel from tank an...

Page 21: ...plug Engine problems 1 See Engine Manual Does not drive forward 1 Traction drive cable not adjusted properly 2 Traction belt not functioning 1 Adjust traction drive cable See Traction Drive Clutch Adj...

Page 22: ...ecoil Fuel See Engine Manual Tank Capacity qt L 2 0 1 96 Snow Clearing Width in cm 20 50 8 Chute Rotation Angle 200 Impeller Diameter in cm 12 30 5 Speed RPM Max min 1 1200 Auger Diameter in cm 11 0 2...

Page 23: ...abor and parts except as noted below The duration of this warranty shall be ninety 90 days after the date of purchase or 1000 hours of use whichever comes first if any product is rented or leased 3 Ye...

Page 24: ...uine Ariens or Gravely brand service parts are not covered by this warranty Except as specifically warranted normal maintenance services and normal replacement items such as spark plugs oil oil filter...

Page 25: ......

Page 26: ...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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