MTD 3AA User manual

Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, 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).
If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law
(Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester
for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland,
Ohio 44136-0019.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
PRINTED IN U.S.A.
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION
IMPORTANT
OPERATOR’S MANUAL
Two-Stage Snow Thrower – Models 3AA & 3CA
6/1/2006
FORM NO. 769-00747E

16
Model Series 3AA-3CA
18
7
16
32
20
30
31
26
18
28
29
22
23
25
8
36
3
19
13
10
11
14
44
3
18
43
21
33
4
15
9
12
18
3
24
17
42
27
39
41
34
40
37
38
35
18
6
5
3
2
1

17
Ref. No. Part No. Description Qty.
1 684-04037 Chute Assembly 1
2 710-04071 Carriage Bolt 5/16-18 x 1 1
3 710-0451 Carriage Bolt 5/16-18 11
4 720-04072 Star Knob 5/16-18 (black) 1
720-04071 Star Knob 5/16-18 (yellow) 1
5 731-04388A Chute Handle 1
6 731-04426A Upper Chute 1
7 731-04127 Lower Chute 1
8 731-04353 Chute Ring 1
9 731-2636A Chute Adapter 5" Dia. 1
10 732-04111 Chute Adjustment Spring 1
11 712-04064 Flange Lock Nut 1/4-20 5
12 731-2643 Clean-out Tool 1
13 731-2635 Clean-out Tool Mount 1
14 725-0157 Cable Tie 1
15 710-0134 Carriage Screw 1/4-20 x .62 5
16 710-0520 Hex Bolt 3/8-16 x 1.50 1
17 710-0604A AB Screw 5/16-18 x .625 4
18 712-04063 Flange Lock Nut 5/16-18 11
19 712-04065 Flange Lock Nut 3/8-16 1
20 712-0266 Hex Lock Nut 3/8-16 1
21 715-04020 Spiral Pin 2
22 726-04012 Push On Nut 2
Ref. No. Part No. Description Qty.
23 731-04218B Impeller 1
24 732-0611 Extension Spring 1
25 736-0174 Wave Washer 1
26 738-0281 Shoulder Screw 3/8-16 1
27 741-0245 Hex Flange Bearing 2
28 741-0309 Ball Bearing 1
29 750-04191 Spacer 1
30 756-04249 Flat Idler 1
31 784-0434 Auger Idler Bracket 1
32 790-00075 Bearing Housing 1
33 618-04292 Auger Gearbox Assembly 1
34 684-04113 Auger Assembly - LH 2
35 684-04114 Auger Assembly - RH 2
36 684-04166 Auger Housing 22" 1
37 714-04040 Bow Tie Cotter Pin 72 4
38 731-04870 Spacer 1.25 x .75 x 1.00 2
39 736-0351 Flat Washer 2
40 738-04124A Shear Pin .25 x 1.50 4
41 741-0493A Flange Bushing 8
42 790-00087A Hex Bearing Housing 2
43 790-00117 Shave Plate 1
44 784-5580 Skid Shoe 2
9
To order replacement
parts, please call
1-800-800-7310 or visit
us on the web at
www.mtdproducts.com
Parts
List

18
Model Series 3AA-3CA




























 












 











 




19
9
Ref. No. Part No. Description Qty.
1 710-0449 Carriage Screw 5/16-18 x 2.25 2
2 710-0605 Mach. Screw 1/4-20 x 1.825 1
3 710-1260A Screw 5/16-18 x .75 8
4 712-04064 Flange Lock Nut 1/4-20 2
5 720-04072 Star Knob 5/16-18 2
6 725-0157 Cable Tie 3
7 746-04256 Drive Cable 1
8 746-04236 Auger Cable 1
9 747-1161A Auger Control 1
10 747-1214 Drive Control 1
11 749-04147 Lower Handle 1
12 749-1092A Upper Handle 1
13 790-00053 Handle Tab 2
14 618-04296A Transmission Assembly 1
15 710-0809 TT Screw 1/4-20 x 1.25 1
16 710-1652 Screw 1/4-20 x .625 3
17 711-1364 Clevis Pin 1
18 714-0115 Cotter Pin 1/8 x 1.0 2
19 714-04040 Bow Tie Cotter Pin 72 1
20 715-0249 Roll Pin 1
21 717-04066A Pinion 14T 1
22 717-04073A Gear 70T 1
23 732-0429A Extension Spring 1
24 736-0192 Flat Washer 1
25 738-04184A Shoulder Screw 1/4-20 1
26 738-0924A Shoulder Screw 1/4-28 1
27 741-0245 Hex Flange Bearing 2
Ref. No. Part No. Description Qty.
28 741-04108 Hex Flange Bearing 2
29 756-0625 Cable Roller 1
30 784-0419B Drive Housing Frame 1
31 790-00223 Auger Cable Bracket 1
32 790-00224 Auger Cable Adj. Bracket 1
33 634-0232C Wheel Assy Snow Hog Gray 2
34 710-0627 Lock Bolt 5/16-24 x .75 2
35 736-0242 Bell Washer .34 x .872 x .06 2
36 738-1231 Axle 1
37 710-0224 Hex Screw #10-16 x .500 1
38 710-0654A TT Sems Screw 3/8-16 x 1.0 4
39 710-0696 Hex Bolt 3/8-24 x .875 1
40 710-1245B Lock Bolt 5/16-24 x .875 1
41 731-04162A Belt Cover 1
42 736-0247 Flat Washer .406 ID x 1.25 OD 1
43 736-0505 Flat Washer .34 ID x 1.50 OD 1
44 748-04067 Pulley: Adapter .75 Dia. 1
45 750-1355 Spacer .876 x 1.25 x .19 1
46 750-1356 Spacer .876 x 1.25 x .86 1
47 754-04013 V-Belt 3/8 x 21.108 Lg. 1
48 754-04014 V-Belt 3/8 x 26.680 Lg. 1
49 756-04024 Auger Pulley 1
50 756-0569 Pulley Half 4
51 710-0456 Screw #10-16 x .500 1
52 790-00064 Heat Shield 1
53 736-0160 Flat Washer .53 x .93 x .05 1
To order replacement
parts, please call
1-800-800-7310 or visit
us on the web at
www.mtdproducts.com
Parts
List