Form No. 3373-560 Rev B Power Max Heavy Duty 928 OE and 926/1028 OXE Snowthrower Model No. 38660—Serial No. 313000001 and Up Model No. 38664—Serial No. 313000001 and Up Model No. 38674—Serial No. 313000001 and Up Operator's Manual Introduction This machine is intended to be used by residential homeowners or professional, hired operators. It is designed for removing snow from paved surfaces, such as driveways and sidewalks, and other surfaces for traffic on residential or commercial properties.
This spark ignition system complies with Canadian ICES-002. Contents Introduction .................................................................. 1 Training ................................................................. 3 Preparation............................................................. 3 Operation............................................................... 3 Clearing a Clogged Discharge Chute .......................... 4 Maintenance and Storage..........................................
Safety – 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. This machine meets or exceeds the B71.3 specifications of the American National Standards Institute in effect at the time of production. – Replace gasoline cap securely and wipe up spilled fuel. – If fuel is spilled on clothing, change clothing immediately. Read and understand the contents of this manual before the engine is ever started.
• Do not overload the machine capacity by attempting to discharge opening while operating the machine. Keep your face, hands, feet, and any other part of your body or clothing away from moving or rotating parts. clear snow at too fast a rate. • Never operate the machine at high transport speeds on slippery surfaces. Look behind and use care when operating in reverse.
Safety and Instructional Decals Important: Safety and instruction decals are located near areas of potential danger. Replace damaged decals. 107-3040 1. Cutting dismemberment, impeller and cutting dismemberment, auger hazards—keep bystanders a safe distance from the snowthrower. 106-4525 Reorder part no. 112-6633 1. Fast 2. Forward speeds 112-6625 Reorder part no. 112-6629 3. Slow 4. Reverse speeds 1.
112-6627 (Models 38664 and 38674 only) 3. Warning—read the Operator's Manual. 1. Left turn control 5. Cutting/dismemberment 7. Auger/impeller hazard, impeller—keep drive—squeeze the lever to away from moving parts; engage; release the lever remove the ignition key and to disengage. read the instructions before servicing or performing maintenance. 6. Thrown object 8. Right turn control hazard—keep bystanders a safe distance from the snowthrower. 2. Traction drive—squeeze 4.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 4 5 6 7 8 9 Description Qty. Use Handle bolts Curved washers Locknuts 4 4 4 Install the upper handle. No parts required – Install the wheel clutch cable ends No parts required – Install the traction control linkage. Carriage bolts Locknuts 2 2 Install the chute control rod. Cable tie 1 Connect the wire to the headlight. No parts required – Fill the engine with oil.
1 Installing the Upper Handle Parts needed for this procedure: 4 Handle bolts 4 Curved washers 4 Locknuts Procedure Figure 5 Note: Do not remove the rubber band on the cables until you have installed the upper handle. 1. Lift and rotate the upper handle and position it over the lower handle (Figure 4). 2 Important: Route the cables attached to the Quick Stick inside the upper handle legs and ensure that the cables and the wire for the headlight are not pinched between the handle sections.
Figure 10 Figure 7 Note: The gap should be approximately the thickness of a pencil (1/4 inch or 6 mm). If it is greater, loosen the cable clamp nut, slide the cable jacket up slightly, tighten the cable clamp nut, and check the gap again. 1. Wheel clutch lever 3. Remove the nut and washer from the handle, attach the cable clamp on the cable to the handle, install the washer and the nut, and hand tighten the nut (Figure 8). 6. Repeat steps 2 through 5 for the other cable.
Note: For easier installation, look down through the opening in the speed selector (Figure 14). Figure 14 Figure 12 1. Speed selector lever 3. Inner washer 2. Trunnion 4. Outer washer 1. Speed selector 4 Note: To make installation easier, leave the flat washer on the trunnion (Figure 12). 4. Shift the speed selector lever into Position R2. Installing the Chute Control Rod 5. Rotate the lower link arm fully upward (counterclockwise) (Figure 13).
7. Hold the blue trigger cap down and rotate the Quick Stick in a circle to ensure that the chute and deflector operate smoothly. 5 Connecting the Wire to the Headlight g018656 Figure 15 1. Short rod Parts needed for this procedure: 2. Long chute control rod 1 4. Insert the front end of the rod into the opening in the back of the chute gear cover until it slides into the chute gear (Figure 16). Cable tie Procedure 1.
6 1 Filling the Engine with Oil 2 No Parts Required Procedure Your machine comes with oil in the engine crankcase. Note: Before starting the engine, check the oil level and add oil if necessary. Use automotive detergent oil with an API service classification of SF, SG, SH, SJ, SL, or higher. Refer to your engine owner's manual. G016497 Figure 20 Use Figure 19 below to select the best oil viscosity for the outdoor temperature range expected: 1. Full 2. Add oil 2.
4. Release the traction lever. 9 5. Move the speed selector to the Position F1; refer to Operating the Speed Selector. 6. Squeeze the left hand (traction) lever to the hand-grip (Figure 21). Checking the Traction Drive Operation The machine should move forward. If the machine does not move or moves rearward, complete the following: No Parts Required A. Release the traction lever and stop the engine.
Product Overview Figure 24 1. Snow cleanout tool (attached to the handle) Operation Note: Determine the left and right sides of the machine from the normal operating position. Freewheeling or Using the Self-propel Drive Model 38660 only. You can operate the snowthrower with the self-propel feature engaged or disengaged (freewheeling). G016495 To freewheel, insert the axle pins through the axle holes, but not through the wheel hubs (Figure 25). Figure 22 1. Hand-grip (2) 10. Scraper 2.
Filling the Fuel Tank • For best results, use only clean, fresh, unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method). DANGER • Oxygenated fuel with up to 10% ethanol or 15% MTBE Gasoline is extremely flammable and explosive. A fire or explosion from gasoline can burn you and others. by volume is acceptable. • Do Not use ethanol blends of gasoline (such as E15 or E85) with more than 10% ethanol by volume.
Starting the Engine 4. Firmly push in the primer with your thumb as indicated by the chart below, holding the primer in for a second before releasing it each time (Figure 30). 1. Check the engine oil level. Refer to Checking the Engine Oil Level in Maintenance. 2. Turn the fuel shutoff valve 1/4 turn counterclockwise to open it (Figure 28). Number of primes Temperature 3 0°F (-18°C) or above 4 -10°F to 0°F (-23°C to -18°C) 6 -10°F (-23°C) and below G016512 Figure 28 G016494 Figure 30 3.
5. Move the choke to the Choke position (Figure 31). g019055 Figure 33 1. Electric-starter button 2. Electric starter plug-in 3. Recoil starter 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). G016501 Figure 31 WARNING The electrical cord can become damaged, causing a shock or fire. 6.
Stopping the Engine Operating the Traction Drive 1. Move the throttle to the Slow position, and then to the Stop position (Figure 34) to kill the engine. The engine can also be stopped by pulling the ignition key outward to the middle position. CAUTION If the traction drive is not properly adjusted, the machine may move in the direction opposite of what you intended, causing injury and/or property damage.
Operating the Auger/Impeller Drive 1. To engage the auger/ impeller drive, squeeze the right hand (auger/ impeller) lever to the handgrip (Figure 40). Figure 37 Note: This disengages the drive to the right wheel while the left wheel continues driving, and the machine turns to the right. Note: Similarly, squeezing the left wheel clutch lever turns the machine to the left. Figure 40 When you complete the turn, release the wheel clutch lever, and the drive re-engages both wheels (Figure 38). 2.
Figure 41 Figure 43 Moving the Discharge Chute Unclogging the Discharge Chute Hold the blue trigger cap down and move the Quick Stick to the left to move the discharge chute to the left; move the Quick Stick to the right to move the discharge chute to the right (Figure 42). WARNING If the auger/impeller is running but there is no snow coming out of the discharge chute, the discharge chute may be clogged. Never use your hands to clear a clogged discharge chute. This could result in personal injury.
from freezing. Stop the engine, wait for all moving parts to stop, and remove all ice and snow from the machine. WARNING The impeller can throw stones, toys, and other foreign objects and cause serious personal injury to the operator or to bystanders. • With the engine off, pull the recoil starter handle several times and push the electric-starter button once to prevent the recoil starter and electric starter from freezing up.
Maintenance Service Interval Maintenance Procedure • • • • • Yearly Yearly or before storage Check the skids and adjust them if necessary. Inspect the traction cable and adjust or replace it if necessary. Inspect the auger/impeller cable and adjust or replace it if necessary. Check the auger gearbox oil and add oil if necessary. Lubricate the hex shaft. • Check the air pressure in the tires and inflate them to 17–20 psi (116–137 kPa).
Note: To quickly adjust the skids if they loosen, support the scraper 1/8 inch (3 mm) off the pavement, then adjust the skids down to the pavement. Note: If the skids become excessively worn, you can turn them over and set the unused side toward the pavement. Checking and Adjusting the Traction Cable Figure 47 Service Interval: After the first 2 hours—Inspect the traction cable and adjust it if necessary. 1. Jam nut 2. Turnbuckle Yearly—Inspect the traction cable and adjust or replace it if necessary.
1. Move the machine to a level surface. 2. Clean the area around the pipe plug (Figure 51). 1 Figure 49 G016782 1. Tab 2. 1/16 inch (1.5 mm) Figure 51 1. Pipe plug 4. If the auger/impeller cable is not properly adjusted, do the following steps: 3. Remove the pipe plug from the gearbox. 5. Loosen the jam nut (Figure 50). 4. Check the oil level in the gearbox. The oil should be at the point of overflowing at the filler opening. 5.
Changing the Engine Oil 2. Slide an oil drain pan under the drain extension and remove the oil drain plug. Service Interval: After the first 5 hours—Change the engine oil. Every 50 hours—Change the engine oil. Change the engine oil every 25 operating hours when operating the engine under a heavy load. Note: When removing the plug, ensure the tube does not loosen. 3. Drain the oil. Note: Dispose of the used oil properly at a local recycling center.
5. Dip your finger in automotive engine oil and lightly lubricate hex shaft. 6. Move the speed selector lever to Position 6. 7. Lubricate the other end of the hex shaft. 8. Move the speed selector lever forward and rearward a few times. 9. Install the back cover and return the machine to the operating position. Replacing the Spark Plug Service Interval: Every 100 hours—Replace the spark plug. G016646 Figure 57 WARNING Replacing the spark plug while the engine is hot can result in burns. 3.
Replacing the Drive Belts If the auger/impeller drive belt or the traction drive belt becomes worn, oil-soaked, or otherwise damaged, have an Authorized Service Dealer replace the belt. Replacing the Headlight Bulb Use a GE 899 37W halogen light bulb. Do not touch the bulb with your hands or allow dirt or moisture to come into contact with the bulb. Figure 59 2. Loosen the bolt on the cable clamp (Figure 60). 1. Remove the wire connector from the back of the headlight (Figure 62).
Storage WARNING • Gasoline vapors can explode. • Do not store gasoline more than 30 days. Figure 65 • Do not store the machine in an enclosure near an open flame. 5. Turn the base of the bulb clockwise until it is snug (Figure 66). • Allow the engine to cool before storing it. Preparing the Machine for Storage 1. On the last refueling of the year, add fuel stabilizer to fresh fuel. Figure 66 Note: Fuel should not be stored longer than suggested by the fuel stabilizer manufacturer. 2.
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 Engine runs, but the machine discharges snow poorly or not at all Possible Cause Corrective Action 1. The throttle is not in the Fast position when throwing snow. 1. Move the throttle to the Fast position. 2. The machine is moving too fast to clear the snow. 3. You are trying to remove too much snow per swath. 4. You are trying to remove extremely heavy or wet snow. 5. The discharge chute is plugged. 6. The auger/impeller drive belt is loose or is off the pulley. 2.
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Emission Control Warranty Statement For the United States, California, and Canada A Two-Year Limited Warranty Your Warranty Rights and Obligations The California Air Resources Board (CARB), the U.S. Environmental Protection Agency (EPA), and The Toro Company, are pleased to explain the emission control system warranty on your 2012 –2013 small off-road engine/equipment.
1. Fuel System Parts • • • • • • 2. Fuel line, fittings, and clamps Fuel tank, cap, and tether Carbon canister Air cleaner Intake manifold Crankcase vent and line(s) Purge line and fittings Spark plug(s) and wire(s) Magneto ignition system Catalytic Exhaust System • • • 5. Fuel pump Ignition System • • 4. Cold starting enrichment (primer or choke) Air Induction System • • • • 3.
The Toro Total Coverage Guarantee A Three-Year Limited Warranty (45 Day Limited Warranty for Commercial Use) Conditions and Products Covered Power Max HD and Power Max Two-Stage Snowthrowers Owner Responsibilities 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
