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MTD 3BA - page 1
Two-Stage Snow Thrower Model 3BA PRINTED IN U.S .A. Oper ator’ s Man ual FORM NO . 769-00747C. fm (7/29/2004 ) IMPORT ANT : Read safety rules and instructions ca refully before oper ating equipment. Warning: This unit is equipped with an inter nal combustion engine and should n ot be used on or near any unimproved forest- covered, brush-covered o ...
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MTD 3BA - page 2
2 TABLE OF CONTENTS FINDING MODEL NUMBER This Operator’s Ma nual is an important part of your new snow thrower. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says. Before you star t assembling your new equipment , p lease locate the mod el plate on the equipment and copy th e inf ...
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MTD 3BA - page 3
3 SECTION 1: IMPORTANT SAFE OPERATION PRACTICES DANGER: This machine was built to be oper ated according to th e rules f or safe operation in this manual. As with any type of power equipment, car elessness or error on the part of the operator can result in serious injury . This machine is capable of amputatin g hands and feet and throwing objects. ...
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MTD 3BA - page 4
4 5. Never run an engine in doors or in a poo rly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas. 6. Do not operate machine while under the influen ce of alcohol or drugs. 7. Muffler and engine become hot and can ca use a burn. Do not touch. 8. Exercise extreme caution wh en operating on or crossing gravel surf ...
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MTD 3BA - page 5
5 SECTION 2: ASSEMBLING YOUR SNOW THROWER IMPORT ANT : This unit is shipped with the engine f ull of oil. After assembly, se e page 8 for fuel and oil details. Removing From Carton • Cut the corner s of the carton and lay the sides flat on the ground. Remove all pa cking inserts. • Move the snow th rower out of the carton . • Make certain t h ...
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MTD 3BA - page 6
6 Final Adjustments IMPORT ANT : Check the a djustments as instructe d and make any final adju stments necessary before operating the unit. Check all nut s and bolts for tightness. Failure to follow these in structions may cause damage to u nit. Tire Pressure (Pneumatic Tires) The tires are over-in flated for shipping purposes. Ch eck tire pressure ...
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MTD 3BA - page 7
7 SECTION 3: KNOW YOUR SNOW THROWER • Compare Figure 6 with your eq uipment and follow description of contro ls, given below, to get familiar with their operat ion. Figure 6 Throttle Control The throttle con trol is located on the engine. It r egulates the speed of the engin e and also stops the engine. Drive Control Located on the underside of t ...
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MTD 3BA - page 8
8 SECTION 4: OPERATING YOUR SNOW THROWER Before Starting Engine Engine Oil The engine is shipped with o il in it. Check the oil level before first use. For subsequ ent fill-ups, use the grade of engine oil specified in en gine manual. To add oil: 1. Remove the dipstick from t he oil fill. Pour fresh oil slowly through the plug. Replace dipstick. 2. ...
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MTD 3BA - page 9
9 • If your house wiring system is ground ed and a three-hole re ceptacle is not avail able at the point the snow thrower starter will normally be used, one should be installed by a licensed electrician. NOTE: When connecting the power cord, always connect cord to starter on engine first, then plug the other end into a three-hole grounded 12 0 Vo ...
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MTD 3BA - page 10
10 • Allow the auge r to remain engaged for approximatel y ten (10) seconds befo re releasing the auger cont rol. Repeat this several t imes. • With the engine runnin g in the FAST position and the auger control in the disen gaged “up” position, walk to the fr ont of the machine. • Confirm that the auger has completely stopp ed rotating a ...
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MTD 3BA - page 11
11 • Remove the self-tapping screw and press the tabs that secure the belt co ver to the snow th rower housing. Pull the belt cove r from around the engine and chute and keep it away. You can now access the auger cable. • Tighten two he x nuts on the auger cable toward s the spring to incr ease the tension on the auger b elt. See Figure 7. • ...
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MTD 3BA - page 12
12 • With engine on level ground, oil must be to FULL mark on dipstick. See Figur e 10. • Stop engine and wait several minu tes before checking oil level. Remove oil fill cap and dipstick. • Wipe dipstic k clean, in sert it into oil fill hole and tighten secure ly. • Remove dipstick and check. If oil is not up t o the FULL mark on dip stick ...
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MTD 3BA - page 13
13 Replacing Belts NOTE: There ar e two belts on this snow thrower: a uger belt and drive belt. It is recomm ended that both belts be replaced at the same time. • Remove the spark plug wire fr om the spark plug and ground it aga inst the engine. • Drain gasoline fro m the gas tank, or place a piece of plastic sheet under neath the gas cap to pr ...
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MTD 3BA - page 14
14 Off-Season Storage • If unit is to be stored over 30 days, prepare en gine for storage as instr ucted in the engine manual. • Remove all debris from th e exterior of equipment. • Follow lubrication reco mmendations on page 11. • Always store the sno w thrower in a clean, dry area. NOTE: When storing any type of power equipme nt in an unv ...
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MTD 3BA - page 15
15 SECTION 9: PARTS LIST FOR MODEL 3BA 1 2 4 5 6 3 8 9 10 11 12 13 14 15 16 6 3 18 19 20 4 23 24 25 26 27 3 28 30 31 32 33 34 35 29 22 21 17 Ref. No. Part No. Description 1. 710-0449 Carriage Screw 5/16-18 x 2.25 ” 2. 710-0605 Mach. Screw 1/4-20 x 1.825” 3. 710-0726 Screw, 5/16-12 x.75” 4. 712-04064 Flange Lock Nut 1/4-20 5. 720-0284 Handle K ...
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MTD 3BA - page 16
16 Model 3BA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 25 26 28 29 Shown f or ref erence onl y 16 Shown f or reference only 27 23 ...
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MTD 3BA - page 17
17 Ref. No. Part No. Description 1. 710-0654A 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 5/16-2 4 x 0.875” 4. — Engine 5. 736-0242 Bell Washer,.34 0 x.872 x.060 6. 736-0247 Flat Washer,.40 6ID x 1.25OD 7. 736-0331 Bell Washer,.390 x 1.13 x.062 8. 736-0505 Flat Wash er,.34ID x 1.50 OD 9. 736-0507 ...
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MTD 3BA - page 18
18 Model 3BA Shown f or reference only 15 2 3 4 1 6 7 8 9 10 11 12 13 14 16 4 19 4 9 16 21 23 24 25 26 27 28 29 30 31 32 33 35 36 37 38 40 41 20 43 47 46 47 48 45 44 34 22 42 39 17 18 5 ...
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MTD 3BA - page 19
19 Model 3BA Ref. No. Part No. Description 1. 684-04037 Chute Assembly 2. 710-04071 Carriage Bolt 5/16-18 x 1.0” 3. 710-0451 Carriage Bolt 5/16-18 x 0.750” 4. 712-04063 Flange Lock Nut, 5/16-18 5. 720-0284 Chute Knob Assembly 6. 731-04388A Chute Handle 7. 731-04426A Upper Chute 8. 736-0159 Washer 9. 712-04064 Flange Lock Nut, 1/4-20 10. 731-263 ...
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MTD 3BA - page 20
MANUF A CTURER’S LIMITED W ARRANTY FOR: The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States, its poss essions and territo ries. “MTD”warrants this product ag ai nst defects in material and workmanship for a period of two (2) years commen cing on the date of original ...
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