Ariens Sno-Thro 939003-ST520E Snow Blower Manual

The Ariens Sno-Thro 939003-ST520E is a powerful snow blower designed to efficiently clear snow from driveways and sidewalks. It features a 520cc engine, a 24-inch clearing width, and a 21-inch intake height, making it suitable for heavy snowfall conditions. Below are key sections for safety, features, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Information 3. Operation Instructions 4. Maintenance 5. Troubleshooting 6. Specifications 7. Warranty Information

Features at a Glance

Key components: 520cc engine, 24-inch clearing width, adjustable chute, and ergonomic controls.

Feature	Description
Engine	Powerful 520cc engine for efficient snow removal
Clearing Width	24 inches for wide paths
Intake Height	21 inches to handle heavy snow
Adjustable Chute	Directs snow where needed
Ergonomic Controls	Easy to operate and adjust

Safety Information

Read all safety instructions before operating the snow blower. Always wear appropriate clothing and safety gear.

Keep hands and feet away from moving parts.
Do not operate in enclosed spaces.
Ensure proper maintenance is performed regularly.
Use caution on slopes and uneven surfaces.

WARNING! Failure to follow safety instructions may result in serious injury.

Operation Instructions

To operate the snow blower, follow these steps:

Start the engine using the ignition key.
Adjust the throttle to the desired speed.
Engage the auger and drive controls to begin clearing snow.
Use the chute control to direct snow away from the area being cleared.

CAUTION! Always be aware of your surroundings while operating.

Maintenance

Oil Change: Change oil every 50 hours of operation.
Spark Plug: Inspect and replace as necessary.
Fuel System: Use fresh fuel and clean the fuel system regularly.
Auger and Chute: Check for blockages and clean after each use.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Fuel issue	Check fuel level and quality; ensure choke is set correctly.
Auger not turning	Drive belt issue	Inspect and replace drive belt if worn.
Snow not clearing	Clogged chute	Stop the engine and clear any blockages.
Excessive vibration	Loose parts	Inspect and tighten any loose screws or bolts.

Service: For further assistance, contact Ariens customer support.