Ariens 921 Series User Manual (English)

Questions and Answers:

J
Jack CoxJul 27, 2025
Why won't my Ariens 921 engine crank or start?
- M
  Mrs. Kelli WhiteJul 27, 2025
  Several factors can prevent your Ariens Snow Blower engine from cranking or starting. It could be due to an empty fuel tank, a closed fuel shut-off valve, dirt or residue around the governor/carburetor, the key switch not being in the run position, or a malfunctioning electric starter. To resolve this, ensure the fuel tank is full, the fuel shut-off valve is open, the area around the governor/carburetor is clean, the key switch is in the run position, and the electric starter and its connections are in good working order.
E
erin76Aug 3, 2025
Why does my Ariens 921 unit throw snow poorly or not throw snow at all?
- J
  Jordan LindseyAug 3, 2025
  If your Ariens Snow Blower throws snow poorly or not at all, several issues could be the cause. The shear bolts might be broken. The attachment clutch/brake may not be adjusted properly. The auger could be frozen in place, or ice or debris might be obstructing the auger. Additionally, the attachment drive belts could be slipping, worn, or damaged. Consider replacing the shear bolts, move the unit to a warm place to thaw if the auger is frozen, and with the engine off and auger disengaged, check for and remove any obstructions. Adjust or replace the attachment drive belts as needed.
E
Erin McguireAug 10, 2025
What to do if my Ariens Snow Blower engine stops?
- L
  Lori WebbAug 10, 2025
  If your Ariens Snow Blower engine stops, there are several potential causes. You might be out of fuel, or the fuel shut-off valve might be closed. There could be a mechanical jam in the blower rake or impeller. The fuel supply could be polluted, or the spark plug could be faulty. Also, the fuel cap vent might be plugged. To address this, fill the fuel tank if empty, open the fuel shut-off valve, and if there is a jam, turn off the engine, remove the key, wait for all moving parts to stop, and then remove any obstruction. Replace polluted fuel with clean fuel, replace or clean the spark plug, and replace the fuel cap if the vent is plugged.
M
Michael DixonAug 17, 2025
Why does my Ariens 921 have small rubber beads collecting in the frame?
- A
  Angela SmithAug 17, 2025
  The collection of small rubber beads in the frame of your Ariens Snow Blower is typically due to normal friction disc wear. However, if you notice chunks or large pieces of rubber, it indicates that the friction disc should be checked and replaced if necessary.

Ariens 921 Series Specifications

General

Engine Type	4-Cycle
Type	Two-Stage
Tire Size (in)	15 x 5
Engine	Ariens AX
Auger Type	Steel
Speed Settings	6 Forward / 2 Reverse
Fuel Capacity	0.6 gallons
Start Type	Recoil

Summary

Introduction and Manuals

Manuals Overview

General information about reading manuals and obtaining them.

Non-English Manuals Information

How to obtain manuals in languages other than English.

Product Information and Safety Guidance

Disclaimers and Delivery Notes

Product changes, disclaimers, and customer assembly responsibility.

Product Registration and Parts Policy

Importance of registration and using authorized replacement parts.

Safety Precautions

Understanding Safety Symbols, Alerts, and Practices

Explains safety symbols, signal words, general practices, and training.

Visual Safety Warnings, Emission Control, and Rules

Pictorial warnings, emission system info, and general safety rules.

Safe Operation Practices and Gear

General safe operation, operator awareness, and personal safety gear.

Fuel Handling, Storage, and Maintenance Safety

Fuel safety, storage, and general maintenance safety guidelines.

Assembly Instructions

Package Contents and Tools Required

Lists items included with the unit and necessary tools for assembly.

Unfolding the Handlebar

Step-by-step instructions for setting up the handlebar.

Install Discharge Chute and Crank

Instructions for installing the discharge chute and crank.

Install Headlight

Instructions for installing the headlight.

Install Discharge Chute and Rod

Instructions for installing the discharge chute and rod.

Install Remote Deflector Control

Connects the deflector control cable to the chute.

Pre-Operation Checks

Clutch, Interlock, Tire, Track Tension, and Oil Checks

Verifying clutch, interlock, tire pressure, track tension, and oil levels.

Attachment Belt Run-in Procedure

Initial run-in procedure for the attachment belt.

Controls and Features

Small and Large Dash Control Layouts

Identifies controls on both the small and large dash panels.

Key Snow Thrower Components

Identifies major parts like auger, chute, and impeller.

Engine Controls and Components

Identifies engine start, choke, and fuel controls.

Operation Procedures

Traction, Attachment Clutches, and Ignition

How to engage/disengage drive/attachment, and start the engine.

Speed Selector and Throttle Control

Adjusting speed and engine throttle for operation.

Snow Thrower Operation and Controls

Snow Clean-Out and Chute Controls

Using clean-out tool and operating chute/deflector.

Chute Crank, Wheel Lock, and Heated Handles

Using chute crank, wheel lock, and heated handles.

Adjustments and Fueling

Scraper Blade, Skid Shoes, and Track Angle

Adjusting blade contact, skid shoes, and track angle.

Filling the Fuel Tank

Safe procedures for adding fuel to the tank.

Pre-Start Checks and Startup

Impeller, Clutch, Interlock, Wheel Lock, and Skid Shoe Checks

Verifying impeller, clutch, interlock, wheel lock, and skid shoe function.

Oil/Fuel Checks, Emergency Stop, and Startup

Oil/fuel checks, emergency stop, and general startup procedures.

Starting, Stopping, and Snow Removal

Engine Start and Shut-Off Procedures

Steps for starting and safely shutting off the engine.

Snow Removal Operation and Tips

How to operate for clearing snow and tips for efficiency.

Maintenance and Transport

Traveling and Transporting the Unit

Moving between work areas and securing for transport.

Preparing for Maintenance (Service Position)

How to put the unit in a safe service position.

Maintenance Schedule and Checks

Scheduled Maintenance Tasks

Overview of routine maintenance tasks by interval.

Clutch, Engine Oil, and Tire Pressure Checks

Procedures for checking clutches, engine oil, and tire pressure.

Auger Gearcase and General Lubrication

Checking gearcase oil level and performing general lubrication.

Service and Adjustments

Scraper Blade, Skid Shoes, and Shear Bolts

Adjusting blade/shoes and replacing shear bolts.

Remote Wheel Lock Adjustment

Adjusting the remote wheel lock control for proper function.

Deflector and Chute Control Adjustments

Adjusting remote deflector and chute rotation controls.

Chute and Speed Selector Adjustments

Adjusting chute tension and speed selector mechanism.

Attachment Clutch/Brake Adjustments

Attachment Cable Slack and Idler Roller Clearance

Adjusting cable tension and checking idler roller clearance.

Adjusting Attachment Clutch Cable Spring

Adjusting the spring extension for proper clutch operation.

Traction Drive Clutch and Brake Adjustments

Attachment Brake and Belt Finger Clearance

Verifying attachment brake and belt finger clearance.

Adjusting Traction Drive Clutch

Compensating for friction disc wear on the drive clutch.

Attachment Drive Belt Replacement

Removing and Installing Drive Belts

Steps to remove and install the attachment drive belts.

Friction Disc Replacement

Removing and Installing Friction Disc

Steps to replace the friction disc assembly.

Track and Height Adjuster Adjustments

Track Tension Adjustment

Adjusting track tension for straight tracking.

Height Adjuster Cable Adjustment

Adjusting the height adjuster cable.

Storage

Short Term Storage Procedures

Procedures for short-term storage of the unit.

Long Term Storage and Fuel System

Procedures for long-term storage and fuel system treatment.

Service Parts and Accessories

Recommended Service Parts

List of common replacement parts.

Available Accessories

List of optional accessories for the snow thrower.

Troubleshooting Engine Issues

Engine Not Cranking or Starting

Diagnosing and fixing engine starting issues.

Troubleshooting Operation and Performance

Engine Stopping and Running Problems

Diagnosing engine stopping or running issues.

Drive System and Snow Throwing Issues

Troubleshooting drive problems and poor snow throwing.

Specifications

Model Specifications (Models 921013, 921017, 921018)

Technical details for specific models.

Model Specifications (Models 921019-921023)

Technical details for remaining models.

Warranty Information

Limited Warranty Coverage and Customer Responsibilities

Warranty period, coverage, and owner duties.

Warranty Limitations and Exclusions

Conditions, exclusions, and limitations of the warranty.

Related product manuals

Ariens Sno-Thro 921 Series