MTD 31AS2B5 User Manual

Service Manual

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

31AS2B5 Snow Thrower

IMAGE SHOWS YARD-MAN UNIT

MTD Products LLC - Product Training and Education Department

FORM NUMBER 769-01416

9/2004

TABLE OF CONTENTS

General Information ................................................................................................... 1

Controls ..................................................................................................................... 1

Auger ......................................................................................................................... 1

A/C Starter ................................................................................................................. 1

Back of Unit ............................................................................................................... 2

Muffler ....................................................................................................................... 2

Shave Plate ............................................................................................................... 2

Discharge Chute ........................................................................................................ 3

Auger Drive Belt Replacement ................................................................................. 3

Auger Removal ......................................................................................................... 4

Spark Plug Access .................................................................................................... 5

Front Shroud Cover Removal ................................................................................... 6

Engine Removal ....................................................................................................... 8

Gas Tank ................................................................................................................... 9