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15

4. Curve the rotor blade, and secure it with the remaining

four torx screws and locknuts, positioning the screw
heads on the thick side of the blade (Figs. 18 and 19).

5. Tighten all the screws and locknuts securely.

Storage

Preparing the Fuel System

1. Add a fuel stabilizer/conditioner (such as Lawn-Boy

2+4

r

 Fuel Conditioner) to the gasoline in the fuel tank

as directed.

Note: A fuel stabilizer/conditioner works best when you
mix it it with fresh gasoline.

2. Run the engine for five minutes to distribute the

conditioned fuel through the fuel system.

3. Stop the engine, allow it to cool, and drain the fuel

tank.

4. Start the engine again and run it until it stops.

5. Prime the engine, start it a third time, and run it until it

will not restart.

6. Recycle the fuel according to local codes.

Preparing the Engine

This procedure allows you to close both the intake and the
exhaust ports of the engine, preventing cylinder bore
corrosion.

1. Slowly pull the recoil starter until you feel resistance

due to compression pressure, then stop.

2. Release the starter tension slowly to prevent the engine

from reversing due to compression pressure.

Tightening the Fasteners and
Cleaning the Snowthrower

1. Tighten all loose screws, bolts, and locknuts. Repair or

replace damaged parts.

2. Clean the snowthrower thoroughly.

Covering and Storing the
Snowthrower

Cover the snowthrower and store it in a clean, dry place
out of the reach of children.

IMPORTANT: Store the snowthrower in its operating
position and on its wheels. Storing the snowthrower on
its front housing may cause hard starting.

WARNING

POTENTIAL HAZARD

Gasoline is highly flammable, explosive, and
dangerous if inhaled.

WHAT CAN HAPPEN

If gasoline contacts a flame or is inhaled,
serious personal injury an occur.

HOW TO AVOID THE HAZARD

Never store the snowthrower in a house (living
area) or a basement where ignition sources may
be present, such as hot water and space heaters,
clothes dryers.

Allow the engine to cool before storing the
snowthrower in an enclosure.

Summary of Contents for 320

Page 1: ...uel crivez l adresse ci dessous N oubliez pas d indiquer les num ros de mod le et de s rie de votre produit Lawn Boy Inc Attn Parts Dept 8111 Lyndale Ave S Bloomington MN 55420 1196 Domestic English E...

Page 2: ...eproductive harm Introduction Thank you for choosing a Lawn Boy product We want you to be completely satisfied with your new purchase Read this manual carefully to learn how to operate and maintain yo...

Page 3: ...earing adequate winter garments Wear footwear which will improve footing on slippery surfaces Handle fuel with care it is highly flammable Use an approved fuel container Never add fuel to a running or...

Page 4: ...imes Lawn Boy Snowthrower Safety The following list contains safety information specific to Lawn Boy products or other safety information that you must know that is not included in the ANSI or ISO sta...

Page 5: ...ey could cause a safety hazard Safety and Instruction Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger Replace any decal that...

Page 6: ...a wood block under the wheel axle for support Fig 2 2 Slide a spacer and wheel onto the axle Ensure that the side of the wheel with six spokes faces the center of the axle Slide a pushnut onto the en...

Page 7: ...endicular to the upper hole in the left handle and tighten Installing the Control Cable 1 Route the control cable through the eyebolt on the left side of the snowthrower Fig 4 2 Hook the spring into t...

Page 8: ...en flame or where gasoline fumes may be ignited by a spark Store gasoline in an approved container and keep it out of the reach of children Never buy more than a 30 day supply of gasoline DANGER POTEN...

Page 9: ...mb and slowly push in the primer twice pausing for two seconds between each push For temperatures below 0_F 18_C repeat this step as necessary Note Do not use the choke and the primer when starting a...

Page 10: ...children and pets away from area of operation The snowthrower clears down to the ground and propels itself forward when you raise the handle The snowthrower tilts slightly forward so that the rotor bl...

Page 11: ...engine and wait for all moving parts to stop 2 Move the control bar back toward the handle to remove the slack in the cable 3 Ensure that a 1 16 to 1 8 in 0 16 to 0 32 cm gap exists between the contro...

Page 12: ...e the drive belt may wear and require replacement If after adjusting the control bar the drive belt continues to slip under a heavy load or the rotor does not turn check to see if the belt is severely...

Page 13: ...t off the panel allowing it to hang on the recoil rope 3 Pull the wire off the spark plug and remove the spark plug Fig 15 m 2580 1 Figure 15 1 Spark plug wire 4 Examine the plug and replace it if it...

Page 14: ...7 4 680 Figure 18 1 Rotor blade 2 Rotor half 3 Torx screw 4 Locknut 5 Hex head capscrew 6 Spacer 7 Auger shaft assembly 8 Hex head screw Installing the New Blade 1 Examine the rotor blade edge for th...

Page 15: ...ng cylinder bore corrosion 1 Slowly pull the recoil starter until you feel resistance due to compression pressure then stop 2 Release the starter tension slowly to prevent the engine from reversing du...

Page 16: ...Does Your State Law Relate To This Warranty 4 5 01 16 4 24 55 9 44 06 26 14 52 55 10 5 56 18 4 10 51 241 7 65 5 24 55 9 44 06 1 5 016 18 4 D 156 1 4 7 4 06 0 0 5 48 14 2 465 57 5 6 45 7 7 4 065 0 670...

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