background image

Service Manual

MTD Products LLC - Product Training and Education Department

FORM NUMBER 769-01417

9/2004

31AS250-700 Snow Thrower

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 intended for use by untrained or inexperienced individuals.  
These materials are intended to provide supplemental information to assist the trained technician.  Untrained or inexperienced 
individuals should seek the assistance of an experienced and trained professional. Read, understand, and follow all 
instructions and common sense when working on power equipment. This includes the contents of the product’s Operators 
Manual, supplied with the equipment. No liability can be accepted for any inaccuracies or omission in this publication, although 
care has been taken to make it as complete and accurate as possible at the time of publication.  However, due to the variety of 
outdoor power equipment and continuing product changes that occur over time, updates will be made to these instructions 
from time to time.  Therefore, it may be necessary to obtain the latest materials before servicing or repairing a product.  The 
company reserves the right to make changes at any time to this publication without prior notice and without incurring an 
obligation to make such changes to previously published versions. Instructions, photographs and illustrations used in this 
publication are for reference use only and may not depict actual model and component parts.  © Copyright 2005 MTD Products 
Inc. All Rights Reserved 

Summary of Contents for 31AS250-700

Page 1: ...the product s Operators Manual supplied with the equipment No liability can be accepted for any inaccuracies or omission in this publication although care has been taken to make it as complete and accurate as possible at the time of publication However due to the variety of outdoor power equipment and continuing product changes that occur over time updates will be made to these instructions from t...

Page 2: ......

Page 3: ...TABLE OF CONTENTS General Information 1 Drive Belt Removal 1 Chute Removal 2 Flail Replacement 3 Shave Plate Servicing 3 Auger Removal 3 Shroud Cover Removal 4 Engine Removal 5 Fuel Tank Removal 5 ...

Page 4: ......

Page 5: ...d ground it against the engine to prevent unin tended starting NOTE Some procedures require you to tip the snow thrower up on the front of the auger hous ing If there is fuel in the gas tank place a piece of plastic wrap over the gas tank opening and screw the cap back on the tank tightly This should keep the gas from leaking out of the cap or vent During the service of this Snow Thrower there is ...

Page 6: ...opened to remove the chute clamp Access to the latches can be gained from the inside rear opening NOTE Removal of the chute is easier than it is to reinstall If the shroud cover is to be removed it is easier to disassemble the handle and upper chute and place the clamp on the lower chute prior to installing the shroud cover 2 1 Position the chute facing forward and the latches of the chute will be...

Page 7: ...apping hex screws attaching the rubbers flails to the auger assembly 3 3 Attach new flails in reverse order 4 SHAVE PLATE SERVICING The plastic shave plate can also be removed if worn VIEW FROM BEHIND UNIT UNDER COWLING Latches Rubber Flails and turned around 5 AUGER REMOVAL 5 1 Using a 1 socket remove the auger pulley This is a left hand threaded nut Remove clockwise Shave Plate Auger Pulley ...

Page 8: ...right side driving the axle shaft out of the right hand bear ing and thereby pushing out the bearing and bearing backup washer out the left side The auger can now be inspected for wear and or breakage of welds If not damaged replace in reverse order 6 SHROUD COVER REMOVAL 6 1 Remove the upper chute and the chute handle from the lower chute Bearing Housing Cover LEFT SIDE RIDE SIDE Auger Bolt Slide...

Page 9: ...ing the front of the housing to the auger housing 6 3 Remove the four bolts two on each side secur ing the sides of the shroud cover housing to the sides of the auger housing 6 4 MORE INSTRUCTIONS TO COME 7 ENGINE REMOVAL 8 FUEL TANK REMOVAL Shroud Screws ...

Reviews: