MTD 31AS2B5 manual

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Table of contents for the manual

  • Page 1

    Ser vice Manual MTD Products LLC - Product T r aining and Education Dep artment FORM NUMBER 769-01416 9/2004 31AS2B5 Snow Thrower IMAGE SHO W S Y ARD-MAN UNIT NOTE: These materials are for use by trained technicians who are experienced in the service and repair of outdoor power  equipment of the kind described in this publication, and are not in[...]

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  • Page 3

    TABLE OF CONTENTS General Information ........ ................................................. ................ ............... ........... 1 Controls ............ ................................................. .............................. ............... ........... 1 Auger ........... ................................. .....................[...]

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    1 31AS2B5-71 1 Snow Thrower Model Number #31AS2B5- 7 1 1 Seria l Number 1E074B20005 NOTE: The equipment that was used to write this section w as a prot otype an d was witho ut labels. There may be subtle dif ferences between prototypes and productio n equipment but the disassembly procedures preformed will remain the same. GENERAL INFORMATION T ecu[...]

  • Page 6

    2 switch and the A.C. plug connector with st arter button that is used for the electric start. See Figure 3. 4. BACK OF UNIT The Model tag is located on the back of the unit and includes phone numbers for customer assistance : T roy- Bilt 330-558-552 0 or 1-800-52 0-5520. The choke control is shown on the right side of the carburetor cover . T o th[...]

  • Page 7

    3 7. DISCHARGE CHUTE The mitten grip handle on the sno w chute allows easy adjustment side to side. See Figure 7. 8. AUGER DRIVE BELT REPLACEMENT 8.1. Remove the five (5) screws on the per imeter of the belt cov er using a 3 /8" socke t with shor t extension and ratchet. See Figure 8. 8.2. With t he cover re moved insp ect for wear on the belt[...]

  • Page 8

    4 engine pulley . Rep lace by using th e same proc e- dure. See Figure 1 1. 9. AUGER REMOVAL 9.1. Place a two by four wedge in the housing to hold the auger from turning. Using 1” socket, remove the auger pulley nut. The shaf t is reverse threaded an d the nut is removed by turning it clockwise. See Figure 12. NOTE: During reassembly place the 2X[...]

  • Page 9

    5 9.4. Remove and inspect the bearing and heavy washer for ear or damage. See Fig ure 15. 9.5. Facing the housing, slide the auger assembly to the right, and then r emove the auger and shaft assembly from the housing. See Figure 16 . Figure 15 Bearing and Washer Figure 16 Slide auger asse mbly to the righ t 9.6. Inspect the auger assembly for wea r[...]

  • Page 10

    6 1 1. FRONT SHROUD COVER REMOVAL 1 1.1. Remove the three screws from the inside to p of the auger housing using a 3/8" socket and ratchet. See Figure 19. 1 1.2. Remove the remaining five ( 5 ) perimeter screws and two ( 2 ) scr ews holding t he starter plug assemb ly using a 5/ 16" socket . The shr oud is slotted to allow the rem oval fr[...]

  • Page 11

    7 bling easier to leave the lower chute att ached and remove the deflector . See Figure 23. 1 1.6. Remove the gas cap and the o il dipstick and then lif t of f the shroud . With the Shroud removed you now have complete access to the engine, sta rter , fuel tank and all related items for servicing or replaceme nt. See Figure 24. Figure 23 Figure 24 [...]

  • Page 12

    8 NOTE: During reassembly , align the chute assembly by facing it to wards the pla stic retain- ing ring. Be sure the chute is positioned all the way to the right or left upo n re-assembly . See Figure 27. Check that the upper and lower flan ges lock into the retaining ring and that the latch closes and locks prop- erly . See Figure 28. 12. ENGINE [...]

  • Page 13

    9 13. GAS T ANK 13.1. A wire retainer holds the gas tank. The t ank can easily be replaced by pus hing the wire out of the lower support pla te at the bend on the side of the tank. See Figure 30. NOTE: The ga s line clamp is accessible below the mounting br acket. Figure 30 Press DOWN here Gas Line Clamp[...]