Form No. 3369-524 Rev A 722 Power Throw® Snowthrower Model No. 38608—Serial No. 312000001 and Up Operator's Manual Introduction This machine is intended to be used by residential homeowners or professional, hired operators. It is designed primarily for removing snow from paved surfaces, such as driveways and sidewalks, and other surfaces for traffic on residential or commercial properties. It is not designed for removing materials other than snow, nor is it designed for clearing off gravel surfaces.
Safety Caution: Improper use may result in loss of fingers, hands, or feet. Before Operating ? ? Read and understand the contents of this manual before operating the snowthrower Become familiar with all controls and know how to stop the engine quickly . . There is a high-speed impeller close to the opening. Operator 's Position The low-speed auger has a moving pinch point close to the opening. This machine meets or exceeds the B71.
• • • • – When practical, remove gas-powered machine from the truck or trailer and refuel it on the ground. If this is not possible, then refuel such machine on a trailer with a portable container, rather than from a gasoline dispenser nozzle. – Keep the nozzle in contact with the rim of the fuel tank or container opening at all times, until refueling is complete. Do not use a nozzle lock-open device. – Replace gasoline cap securely and wipe up spilled fuel.
Maintenance and Storage • If a shield, safety device, or decal is damaged, illegible, or lost, repair or replace it before beginning operation. • Check all fasteners at frequent intervals for proper tightness to be sure the machine is in safe working condition. • Do not smoke while handling gasoline. • Do not use the machine on a roof. • Never store the machine with fuel in the fuel tank inside a building where ignition sources are present, such as hot water heaters, space heaters, or clothes dryers.
Safety and Instructional Decals Important: Safety and instruction decals are located near areas of potential danger. Replace damaged decals. 107-3040 112-6624 1. Wheel drive 3. Disengage 5. Thrown object hazard—keep bystanders a safe distance from the snowthrower. 2. Engage 4. Warning—read the Operator’s Manual. 6.
119-1586 1. Forward drive speed settings 3. Reverse drive speed setting 2. Speed selector Briggs Part No. 273676 3. Fast 1. Stop 2. Slow Briggs & Stratton Part No. 277588 Briggs & Stratton Part No. 275949 1. Choke on (Choke) 1. Primer 2. Choke off (Run) 3. Ignition key out (Engine—Stop) 2. Ignition key in (Engine—Run) Briggs Part No. 276925 1. Warning—read the Operator’s Manual. 2. Warning—fire hazard. 3. Warning—toxic gas inhalation hazard. 4. Warning—hot surface/burn hazard.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 4 5 6 7 8 Description Handle assembly Bolts Belleville washers Flange nut Speed selector rod Cotter pin Flat washer 1 4 4 1 1 1 1 Flange locknut 1 Install the traction rod. Clevis pin Cotter pin Chute control rod assembly (rod and bracket, worm gear, and bracket) Belleville washer Bolt Carriage bolt Locknut Curved washer 1 1 Install the auger/impeller drive control linkage.
6. Align the holes in the right side of the handle with the holes in the right side plate, and secure the handle with 2 cap screws and Belleville washers until they are finger tight. 7. Ensure that the handles are at the same height, then tighten the handle fasteners securely. 8. Slide the wheels outward and insert each axle pin through the hole in each wheel hub and through the outer hole of the axle (Figure 5). Figure 3 1. Axle pin (2) 2. Cap screw and curved washer (4) 3. Handle 3.
Figure 7 1. Handgrip 2. Traction control lever Figure 6 1. Speed selector arm 2. Flat washer and cotter pin 3. Speed selector rod 3. 1 to 2 inches (3 to 5 cm) 4. 4-1/2 inches (11.4 cm) 3. Tighten the 2 flange nuts until they are finger tight. 2. Move the speed selector lever (Figure 14) on the control panel to the R (Reverse) position. 4. Move the speed selector lever (Figure 14) into third gear. 3.
4 Installing the Auger/ Impeller Drive Control Linkage Parts needed for this procedure: 1 Clevis pin 1 Cotter pin Procedure 1. Loosen the jam nut above the clevis on the upper control rod (Figure 8). Figure 9 1. Handgrip 2. Auger/impeller control lever 3. 1 to 2 inches (3 to 5 cm) 4. 5 inches (12.7 cm) Note: The distance should be approximately 5 inches (12.7 cm). 4. Press the auger/impeller drive control lever slowly toward the handgrip.
5 Installing the Chute Control Rod Parts needed for this procedure: 1 Chute control rod assembly (rod and bracket, worm gear, and bracket) 1 Belleville washer 2 Bolt 1 Carriage bolt 3 Locknut 1 Curved washer Procedure 1. Secure the upper chute control bracket (attached to the chute control rod) to the upper left side of the handle with a bolt and a locknut Figure 10. Figure 10 1. Chute control rod 2. Worm gear, bracket, and mounting flange 3. Lower chute control bracket 4.
Figure 12 Figure 11 1. Worm gear 2. Bracket 3. Mounting flange 4. Bolt, Belleville washer, and locknut 1. Move the machine to a level surface to ensure an accurate oil level reading. 2. Clean around the dipstick (Figure 13). 4. Loosely mount the worm gear and the bracket to the mounting flange with a bolt, a Belleville washer, and a locknut as shown in Figure 11. 5. Slide the worm gear into the teeth of the chute retaining ring and tighten the locknut (Figure 11). 6.
Product Overview result. Drain the excess oil until the oil level on the dipstick reads Full. 9. Insert the dipstick into the filler neck and rotate the cap clockwise until it is tight. 7 Checking the Tire Pressure No Parts Required Procedure The tires are overinflated at the factory for shipping. Reduce the pressure equally in both tires to between 12 and 15 psi (82 and 103 kPa). 8 Checking the Skids and Scraper Figure 14 1. Auger/impeller drive control lever 2. Traction control lever 3.
Controls unclog the discharge chute when it becomes clogged with snow. • Auger/Impeller Drive Control Lever—To engage both the auger and impeller, press the lever against the right handgrip. To disengage, release the lever. • Traction Control Lever—To engage the traction (wheel drive), press the lever against the left handgrip. To stop the traction, release the lever. • Speed Selector Lever—This control has 4 positions: 3 forward speeds and 1 reverse.
Filling the Fuel Tank Starting the Engine 1. Check the engine oil level. Refer to Checking the Engine Oil Level in Maintenance. DANGER Gasoline is extremely flammable and explosive. A fire or explosion from gasoline can burn you and others. 2. Turn the fuel shutoff valve 1/4 turn counterclockwise to open it (Figure 19). • To prevent a static charge from igniting the gasoline, place the container and/or machine on the ground before filling, not in a vehicle or on an object.
Note: To use the electric starter, connect a power cord to the electric starter plug-in first and then to a power outlet. Use only a UL-listed, 16-gauge extension cord recommended for outdoor use that is not longer than 50 feet (15 m). 8. Start the machine by pulling the recoil starter or pressing the electric-start button (Figure 24). Figure 21 Figure 24 5. Rotate the choke to the Choke position (Figure 22). 1. Electric-start button 2. Electric starter plug-in 3.
Unclogging the Discharge Chute WARNING If you leave the machine plugged into a power outlet, someone can inadvertently start the machine and injure people or damage property. WARNING Unplug the power cord whenever you are not starting the machine. If the auger/impeller is running but there is no snow coming out of the discharge chute, the discharge chute may be clogged. Stopping the Engine Never use your hands to clear a clogged discharge chute. This could result in personal injury. 1.
Operating Tips WARNING The rotor blades can throw stones, toys, and other foreign objects and cause serious personal injury to the operator or to bystanders. DANGER When the machine is in operation, the impeller and auger can rotate and cut off or injure hands and feet. • Before adjusting, cleaning, inspecting, troubleshooting, or repairing the machine, stop the engine and wait for all moving parts to stop.
CAUTION If you leave the wire on the spark plug, someone could accidently start the engine and seriously injure you or bystanders. Disconnect the wire from the spark plug before you do any maintenance. Set the wire aside so that it does not accidentally contact the spark plug. Preparing for Maintenance 1. Move the machine to a level surface. Adjusting the Skids and Scraper 2. Stop the engine and wait for all moving parts to stop. Service Interval: Yearly 3. Disconnect the spark plug wire.
4. Loosen the flange nuts that secure the selector plate to the control panel (Figure 29). Figure 28 1. Auger blade 2. Scraper 3. Mounting screw (5) 5. Check the scraper adjustment. The scraper should be 1/8 inch (3 mm) above and parallel to a level surface. Figure 29 A. For Concrete and Asphalt Surfaces: 1.
Figure 31 1. Pipe plug Figure 30 1. Roll pin 2. Drive assembly Changing the Engine Oil 3. 1/8 inch (3 mm) Service Interval: After the first 5 hours Yearly 6. With the drive assembly 1/8 inch (3 mm) from the roll pin, tighten the flange nuts that secure the speed selector plate. Every 50 hours If possible, run the engine just before changing the oil because warm oil flows better and carries more contaminants. 7.
3. Remove the 4 flange-head bolts that secure the bottom cover and remove the cover (Figure 34). Figure 33 1. Oil drain plug 2. Drain extension Figure 34 4. Slide an oil drain pan under the drain extension and remove the oil drain plug (Figure 33). 1. Flange-head bolts Note: Place a funnel under the drain extension so the oil drains directly into the oil drain pan and away from the machine. 4. Lightly lubricate the machine with light oil as shown in Figure 35. 5. Drain the oil.
Replacing the Spark Plug Service Interval: Every 100 hours—Replace the spark plug. Use a Champion QC12YC or equivalent spark plug. Note: To access the spark plug, you must first remove the upper snow hood (Figure 36). Figure 37 3. Thumb screw 1. Spark-plug wire 2. Bracket Figure 36 1. Choke knob 2. Upper snow hood 5. Clean around the base of the spark plug (Figure 37). 6. Remove and discard the old spark plug. 3. Ignition key 4.
Adjusting the Traction Drive Belt Service Interval: After the first hour Before each use or daily Adjust the traction drive belt after the first operating hour, after every 5 operating hours thereafter, and when the speed selector lever shifts properly but the machine does not drive in the forward or reverse speeds. 1. Check and adjust the traction drive as described in Installing the Traction Rod in Setup. 2. If the problem persists after adjusting the linkage, contact an Authorized Service Dealer.
18. Check the auger/impeller drive linkage and adjust it if necessary. Refer to steps 4 through 7 of Installing the Auger/Impeller Drive Control Linkage in Setup. 19. Install the belt cover. Adjusting the Auger/Impeller Drive Belt Service Interval: After the first hour Before each use or daily Operating the machine with an auger/impeller drive belt that slips decreases the snowthrowing performance and damages the belt.
Replacing the Auger/Impeller Drive Belt 4. Prime the engine and start it again. 5. Allow the engine to run until it stops. When you can no longer start the engine, it is sufficiently dry. If the auger/impeller drive belt becomes worn, oil-soaked, or otherwise damaged, replace the belt. 1. Remove the 2 flange-head bolts that hold the belt cover in place and set the cover aside (Figure 39). 2. Loosen the belt guide (Figure 40). 3.
Troubleshooting Problem Possible Cause Electric starter does not turn (electric-start models only) 1. The power cord is disconnected at the outlet or the machine. 1. Connect the power cord to the outlet and/or the machine. 2. The power cord is worn, corroded, or damaged. 3. The power outlet is not energized. 2. Replace the power cord. 1. The key is not in the ignition or is in the Stop position. 1. Insert the key into the ignition and turn it to the On position. 2.
Problem Possible Cause Corrective Action 7. The auger/impeller drive belt is worn or broken. 7. Replace the auger/impeller drive belt; refer to www.Toro.com for servicing information or take the machine to an Authorized Service Dealer. Discharge chute either does not lock into place or does not move 1. The discharge chute latch is not properly adjusted. 1. Adjust the discharge chute latch. Machine does not properly clear the snow off the surface 1.
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The Toro Total Coverage Guarantee A Three-Year Limited Warranty (45 Day Limited Warranty for Commercial Use) Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the Toro Product listed below if used for residential purposes*, if defective in materials or workmanship or if it stops functioning due to the failure of a component for the period listed below.
