Operator's Manual Two-Stage Snow Thrower Model 3BA IMPORTANT: Read safety rules and instructions carefully before operating equipment. Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forestcovered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any).
TABLEOFCONTENTS Content Page 3 5 7 8 Important Safe Operation Practices Assembling Your Snow Thrower Know Your Snow Thrower Operating Your Snow Thrower Making Adjustments Content Maintaining Your Snow Thrower Servicing Your Snow Thrower Trouble Shooting Illustrated Parts 10 Page 11 12 14 15 Warranty 20 FINDINGMODELNUMBER This Operator's Manual is an important part of your new snow thrower. It will help you assemble, prepare and maintain the unit for best performance.
SECTION1: IMPORTANT SAFEOPERATION PRACTICES _ theARNING: personal safety This and/or symbol property points out of yourself importantand safety others. instructions Read andwhich, followif all notinstructions followed, could in thisendanger manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol--heed its warning.
5. Never runanengine indoors orinapoorlyventilated 2. Before cleaning, repairing, or inspecting machine area.Engine exhaust contains carbon monoxide, an disengage all control levers and stop the engine. Wait odorless anddeadly gas. until the auger/impeller come to a complete stop. 6. Donotoperate machine whileundertheinfluence of Disconnect the spark plug wire and ground against the alcohol ordrugs. engine to prevent unintended starting. 7. Mufflerandenginebecomehotandcancauseaburn. Do 3.
SECTION2: ASSEMBLING YOURSNOWTHROWER IMPORTANT: This unit is shipped with the engine full of oil. After assembly, see page 8 for fuel and oil details. Handle Knob Saddle RemovingFromCarton • Cut the corners of the carton and lay the sides flat on the ground. Remove all packing inserts. Move the snow thrower out of the carton. • • Make certain the carton has been completely emptied before discarding it.
FinalAdjustments o o IMPORTANT:Check the adjustments as instructed and make any final adjustments necessary before operating the unit. Check all nuts and bolts for tightness.Failure to follow these instructions may cause damage to unit. Position Middle Position Position Tire Pressure (Pneumatic Tires) The tires are over-inflated for shipping purposes. Check tire pressure and reduce pressure, if needed, to 10-15 psi. Maintain equal pressure on both wheels of the snow throwe r.
SECTION3: KNOWYOURSNOWTHROWER ,_ WARNING: Beand familiar with all them the controls stop the machine disengage quickly.on the snow thrower and their proper operation. Know how to Compare Figure 6 with your equipment and follow description of controls, given below, to get familiar with their operation. Auger Control Upper Handle Drive Control Starter Rope_ \ M" \ \ Uffler Oil Fill/ Dipstick Gas I Spark | Plug i, Gas Ca_ °lp Carburetor \ \\ \ \ \ pper Chute Knob Chute Assembly _Clean-Out Plate
SECTION4: OPERATING YOURSNOWTHROWER BeforeStartingEngine RecoilStarter • EngineOil The engine is shipped with oil in it. Check the oil level before first use. For subsequent fill-ups, use the grade of engine oil specified in engine manual. To add oil: 1. 2. Remove the dipstick from the oil fill. Pour fresh oil slowly through the plug. Replace dipstick. Check and make sure that the level of oil is up to the FULL mark on the dipstick.
• If your house wiring system is grounded and a three-hole receptacle is not available at the point the snow thrower starter will normally be used, one should be installed by a licensed electrician. BeforeStopping • • NOTE: When connecting the power cord, always connect cord to starter on engine first, then plug the other end into a three-hole grounded 120 Volt receptacle. When disconnecting the power cord, always unplug the end from the three-hole, grounded receptacle first.
• Allowtheaugertoremainengagedfor approximately ten(10)secondsbeforereleasing theaugercontrol.Repeatthisseveraltimes. • WiththeenginerunningintheFASTpositionand theaugercontrolinthedisengaged "up"position, walktothefrontofthemachine. • Confirmthattheaugerhascompletely stopped rotatingandshowsNOsignsofmotion. IMPORTANT: IftheaugershowsANYsignsofrotating, immediately returntotheoperator'spositionandshut offtheengine.
• Skid Shoe Remove the self-tapping screw and press the tabs that secure the belt cover to the snow thrower The space between the shave plate and the ground can be adjusted. For close snow removal, place skid shoes in the low position. Use middle or high position when area to be cleared is uneven. 1. Adjust skid shoes by loosening the four hex nuts and carriage bolts and moving skid shoes to desired position. See Figure 8.
With engine on level ground, oil must be to FULL mark on dipstick. See Figure 10. Stop engine and wait several minutes before checking oil level. Remove oil fill cap and dipstick. Wipe dipstick clean, insert it into oil fill hole and tighten securely. Remove dipstick and check. If oil is not up to the FULL mark on dipstick, add oil. • Service Spark Plug Clean spark plug and reset the electrode gap to 0.030" at least once a season or every 100 hours of operation; replace every 200 hours of operation.
ReplacingBelts • NOTE: There are two belts on this snow thrower: auger belt and drive bell It is recommended that both belts be • Tip the snow thrower up and forward so that it rests on the auger housing. Remove the spring that connects the transmission to a bolt on the engine frame. See Figure 15. replaced at the same time. • • • Remove the spark plug wire from the spark plug and ground it against the engine.
Off-SeasonStorage • • • Remove all debris from the exterior of equipment. Follow lubrication recommendations on page 11. Always store the snow thrower in a clean, dry area. _ tank ARNING: indoors or Never in poorly store ventilated engine with areas, fuel in where fuel fumes may reach an open flame, spark or pilot light as on a furnace, water heater, clothes dryer or other gas appliance. • If unit is to be stored over 30 days, prepare engine for storage as instructed in the engine manual.
SECTION9: PARTSLISTFORMODEL3BA 6 \ \ \ \ 33 22 16 25 Ref. No. Part No. 1. 710-0449 2. Ref. No. Description 27 Part No. Description 19. 710-1652 710-0605 Carriage Screw 5/16-18 x 2.25" Mach. Screw 1/4-20 x 1.825" 20. 711-1364 Screw, 1/4-20 x.625" Clevis Pin 3. 710-0726 Screw, 5/16-12 x.75" 21. 738-1231 Axle 4. 712-04064 Flange Lock Nut 1/4-20 22. 736-0242 Bell Washer 5. 720-0284 23. 714-0115 Cotter Pin, 1/8x 1.0 6. 725-0157 Handle Knob Assembly Cable Tie 24.
Model3BA 4, \\\\\ 16 27 12 \ J J J J J J J Shown for reference only \\ 21\\\ 22 > \ J \ \ \ \ \ '1 24 28 26 Shown for reference only 16
Model3BA Ref. No Part No. 1. 710-0654A Description TT Sems Screw 3/8-16 x 1.0" 2. 710-0696 Hex Bolt 3/8-24 x 0.875" 3. 710-1245B Lock Bolt 5/16-24 x 0.875" 5. 736-0242 Bell Washer,.340 x.872 x.060 6. 736-0247 Flat Washer,.4061D x 1.25OD 7. 736-0331 Bell Washer,.390 x 1.13 x.062 8. 736-0505 Flat Washer,.341D x 1.50OD 9. 736-0507 Special Washer, 1.285 x 2.0 x.119 10. 748-0360 Pulley: Adapter,.75 Dia. 11. 750-1355 Spacer,.87601D x 1.25OD x.1900 12. 750-1356 Spacer,.87601D x 1.
Model3BA 12 \\\_4L \ 13_ 11 Shown for reference only _38 41 22 \ ,46 47 44 34 18
Model3BA Ref. No. PaN No. 1. 684-04037 2. 710-04071 3. Ref. No. Description Part No. Description Chute Assembly 26. 717-1772A Worm Shaft Carriage Bolt 5/16-18 x 1.0" 27. 715-04020 710-0451 Carriage Bolt 5/16-18 x 0.750" 28. 721-0327 Spiral Pin Oil Seal 4. 712-04063 Flange Lock Nut, 5/16-18 29. 741-0662 Flange Bearing 5. 720-0284 736-3084 Flat Washer,.51 x 1.12 x.06 6. 7. 731-04388A 731-04426A Chute Knob Assembly Chute Handle 30. 31. 32. 715-04021 721-0325 Spiral Pin 8.
MANUFACTURER'S LIMITED WARRANTY The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States, its possessions and territories. "MTD'warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in materials or workmanship.