Ariens 939 sno-thro 939002 User Manuals

Table of Contents

• Introduction

  5
  • 1.1 The Manual

    5
  • 1.2 Service and Replacement Parts

    5
  • 1.3 Product Registration

    5
  • 1.4 Unauthorized Replacement Parts

    5
  • 1.5 Disclaimer

    5
  • 1.6 Technical Service Communications

    5
• Safety

  6
  • 2.1 Safety Alerts

    6
  • 2.2 Notations

    6
  • 2.3 Practices and Laws

    6
  • 2.4 Required Operator Training

    6
  • 2.5 Safety Decals and Locations

    6
  • 2.6 Preparation

    7
  • 2.7 Service Position

    7
  • 2.8 Cleaning and Storage

    8
  • 2.9 Safety Rules

    8
• Specifications

  10
• General Maintenance & Adjustments

  11
  • 4.1 Controls and Features

    11
  • 4.2 Service Position

    12
  • 4.3 Stopping in an Emergency

    12
  • 4.4 Starting and Shutting Off

    12
  • 4.5 Fuel Tank

    13
  • 4.6 Pre-Start

    13
  • 4.7 Maintenance Schedule

    14
  • 4.8 Attachment Drive Belt Replacement

    15
    • 1. Shut off engine, remove key, disconnect spark plug wire and allow unit to cool completely.

      15
    • 2. Remove two screws securing belt cover to unit and remove belt cover.

      15
    • 3. Remove belt fingers by removing cap screws mounting belt fingers to engine (Figure 8).

      15
    • 4. Support Sno-Thro frame and housing.

      15
    • 5. Remove top two cap screws and loosen lower two cap screws holding blower housing to frame (one on each side).

      15
    • 6. Remove attachment drive belt from engine sheave (it may be necessary to turn engine sheave using recoil starter handle).

      15
    • 7. Separate housing from unit. Lower handlebar to floor.

      15
    • 8. Remove attachment drive belt from lower pulley.

      15
  • 4.9 Traction Drive Belt Replacement

    16
    • 1. Shut off engine, remove key, disconnect spark plug wire and allow unit to cool completely.

      16
    • 2. Remove attachment drive belt (See “Remove Attachment Drive Belt” on page 15).

      16
    • 3. Push the traction drive belt off the engine pulley toward the engine as shown in Figure 10.

      16
    • 4. Remove traction drive belt from the unit and discard.

      16
    • 5. Place new traction drive belt on engine pulley between the engine and pulley groove as shown in Figure 10.

      16
    • 6. Place new traction drive belt on transmission pulley

      16
    • 7. Push the new traction drive belt onto the grooves in the engine pulley.

      16
    • 8. Replace attachment drive belt (See “Traction Drive Belt Replacement” on page 16).

      16
    • 9. Check traction drive clutch adjustment. See “Traction Drive Clutch Adjustment” on page 19.

      16
  • 4.10 Shear Bolts

    17
    • 1. Align shear bolt holes in auger with shear bolt holes in shaft.

      17
    • 2. Drive shear bolt through hole. (If shear bolt was broken, this will drive remaining part from shaft.)

      17
    • 3. Secure shear bolt with nut.

      17
  • 4.11 Tire Pressure

    17
• Service and Adjustments

  17
  • 5.1 Discharge Chute Deflector

    17
  • 5.2 Discharge Chute

    17
  • 5.3 Runners

    18
  • 5.4 Attachment Clutch/Brake Adjustment

    18
  • 5.5 Traction Drive Clutch Adjustment

    19
• HandleBars & Controls

  20
  • 6.1 Inspect Lower Handlebar

    20
  • 6.2 Replace Lower Handlebar

    20
  • 6.3 Traction Drive Clutch Lever and Cable

    20
  • 6.4 Attachment Control Lever and Cable

    21
• Engine

  22
  • 7.1 Engine Troubleshooting

    22
  • 7.2 Engine Removal

    25
  • 7.3 Engine Installation

    25
• Transmission

  26
  • 8.1 Transmission Removal

    26
  • 8.2 Transmission Installation

    26
• Auger/Impeller

  27
  • 9.1 Auger/Impeller Repair

    27
  • 9.2 Shear Bolts

    27
  • 9.3 Discharge Chute

    28
  • 9.4 Discharge Chute Crank

    29
  • 9.5 Runner and Scraper

    30
• Gear Case

  31
  • 10.1 Aluminum Gear Case

    31
  • Service Parts List

    32