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Toro 44" Two-Stage Snowthrower, 300 Series Garden Tractors Attachment Operator's Manual
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Toro 44" Two-Stage Snowthrower, 300 Series Garden Tractors: Conquer winter with our powerful snowthrower, designed for residential use. Tackle heavy snowfalls and clear paths effortlessly with its 44-inch clearing width and two-stage operation. Enjoy a comfortable ride on your 300 Series garden tractor as you control snow removal with ease.
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Form No. 3319–675 Wheel Horse 44I Snowthrower for Garden Tractors 79361—200000001 & Up Operator’s Manual Domestic English (EN) Introduction We want you to be completely satisfied with your new product, so feel free to contact your local Authorized Service Dealer for help with service, genuine replacement parts, or other information you may require. Whenever you contact your Authorized Service Dealer or the factory, always know the model and serial numbers of your product. These numbers will help the Service Dealer or Service Representative provide exact information about your specific product. You will find the model and serial number plate located in a unique place on the product as shown below. The warning system in this manual identifies potential hazards and has special safety messages that help you and others avoid personal injury, even death. DANGER, WARNING and CAUTION are signal words used to identify the level of hazard. However, regardless of the hazard, be extremely careful. DANGER signals an extreme hazard that will cause serious injury or death if the recommended precautions are not followed. WARNING signals a hazard that may cause serious injury or death if the recommended precautions are not followed. CAUTION signals a hazard that may cause minor or moderate injury if the recommended precautions are not followed. 1 Two other words are also used to highlight information. “Important” calls attention to special mechanical information and “Note” emphasizes general information worthy of special attention. The left and right side of the machine is determined by sitting on the seat in the normal operator’s position. 1280 1. Model and Serial Number Plate For your convenience, write the product model and serial numbers in the space below. Model No: Serial No. The TORO Company – 1999 Printed in USA Contents General Snowthrower Safety . . . . . . . . . . . Toro Snowthrower Safety . . . . . . . . . . . . . Safety and Instruction Decals . . . . . . . . . . Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loose Parts . . . . . . . . . . . . . . . . . . . . . . . . . Assemble Snowthrower . . . . . . . . . . . . . . . Install Snowthrower to Tractor . . . . . . . . . Removing the Snowthrower . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating the Power Take Off (PTO) . . . . Attachment Lift Lever . . . . . . . . . . . . . . . . Attachment Power Lift . . . . . . . . . . . . . . . . Page 2 3 5 6 6 8 10 14 18 18 19 19 Page Adjusting Dial-A-Height . . . . . . . . . . . . . . Adjusting Discharge Chute . . . . . . . . . . . . Tips for Throwing Snow . . . . . . . . . . . . . . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Interval Chart . . . . . . . . . . . . . . . . Greasing and Lubrication . . . . . . . . . . . . . . Adjusting Skids . . . . . . . . . . . . . . . . . . . . . Replacing Scraper Blade . . . . . . . . . . . . . . Adjusting Drive Chain Tension . . . . . . . . . Replace Drive Belt . . . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 20 20 21 22 23 23 23 24 25 25 26 27 1 Safety Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with the safety instructions in the traction unit operator’s manual and always pay attention to the safety alert symbol, which means CAUTION, WARNING, or DANGER—“personal safety instruction.” Failure to comply with the instruction may result in personal injury or death. POTENTIAL HAZARD • Stones and other foreign objects may be picked up and thrown by the rotor blades. WHAT CAN HAPPEN • Thrown objects can cause serious personal injury to operator or bystanders. HOW TO AVOID THE HAZARD • Keep the work area free of all objects that could be thrown by the rotor blades. • Keep all children and pets away from area of operation. POTENTIAL HAZARD • The rotating impeller/auger can cut off fingers, hands, or other body parts. WHAT CAN HAPPEN • Contact with the rotating impeller/auger can cause severe injury or death. HOW TO AVOID THE HAZARD • Stay away from the discharge and auger General Snowthrower Safety The following instructions have been adapted from the ANSI/OPEI and ISO standards. openings while operating the snowthrower. • Keep your hands, feet, and any other part of your body or clothing away from concealed, moving, or rotating parts. • Use a stick, not your hand, to remove obstructions from the discharge chute or auger housing. • Before adjusting, cleaning, repairing, and inspecting the snowthrower and before unclogging the discharge chute, stop the engine and wait for all moving parts to stop. Remove the key. 2 Preparation • Thoroughly inspect the area where the equipment is to be used and remove all doormats, sleds, boards, wires, and other foreign objects. • Do not operate the equipment without wearing adequate winter outer garments. Wear footwear that will improve footing on slippery surfaces. • Adjust the auger housing height to clear gravel or crushed rock surface. • Never attempt to make any adjustments while the engine is running, except when specifically recommended by Toro. Safety • Never operate the snowthrower without proper guards, plates, or other safety protective devices in place. • Never operate the snow thrower near glass enclosures, automobiles, window wells, drop-offs, and the like without proper adjustment of the snow discharge angle. Keep children and pets away. Operation • Do not overload the machine capacity by attempting to clear snow at too fast a rate. • Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times. • Never operate the machine at high transport speeds on slippery surfaces. Look behind and use care when moving in reverse. • Exercise extreme caution when operating on or crossing gravel drives, walks, or roads. Stay alert for hidden hazards or traffic. Do not carry passengers. • Never direct discharge at bystanders or allow anyone in front of the unit. • Disengage power to the auger/impeller when the snowthrower is transported or not in use. • Never operate the snowthrower without good visibility or light. • Let engine and machine adjust to outdoor temperatures before starting to clear snow. • The operation of any powered machine can result in foreign objects being thrown into the eyes. Always wear safety glasses or eye shields during operation or while performing an adjustment or repair. • • • • • After striking a foreign object, stop the engine, remove the wire(s) from the spark plug(s), thoroughly inspect the snowthrower for any damage, and repair the damage before restarting and operating the snowthrower. If the unit should start to vibrate abnormally, stop the engine and check immediately for the cause. Vibration is generally a warning of trouble. Stop the engine whenever you leave the operating position, before unclogging the auger/impeller housing or discharge chute, and when making any repairs, adjustments, or inspections. When cleaning, repairing, or inspecting, make certain the auger/impeller and all moving parts have stopped. Disconnect the spark plug wire(s) and keep the wire away from the plug to prevent someone from accidentally starting the engine. Do not clear snow across the face of slopes. Exercise extreme caution when changing direction on slopes. Do not attempt to clear steep slopes. Maintenance and Storage • Check fasteners at frequent intervals for proper tightness to be sure the equipment is in safe working condition. • Always refer to the operator’s manual for important details if the snowthrower is to be stored for an extended period. • Maintain or replace safety and instruction labels, as necessary. • Run the machine a few minutes after throwing snow to prevent freeze-up of the auger/impeller. Toro Snowthrower Safety The following list contains safety information specific to Toro products or other safety information that you must know that is not included in the ANSI or ISO standards. 3 Safety • The rotating auger/impeller or rotor blades can cut off or injure fingers or hands. Stay in the operator’s position and away from the discharge opening while operating the snowthrower. Keep your face hands, feet, and any other part of your body or clothing away from concealed, moving, or rotating parts. • Before adjusting, cleaning, repairing, and inspecting the snowthrower, and before unclogging the discharge chute, stop the engine, remove the key, and wait for all moving parts to stop. Also, pull the wire(s) off of the spark plug(s) and keep it away from the plug(s) to prevent someone from accidentally starting the engine. • Use a stick, not your hands to remove obstructions from the discharge chute. • Before leaving the operator’s position, stop the engine, remove the key, and wait for all moving parts to stop. • Do not wear loose fitting clothing that could possibly get caught in moving parts. • If a shield, safely device, or decal is damaged, illegible, or lost, repair or replace it before beginning operation. Also, tighten any loose fasteners. • Do not use the snowthrower on a roof. • Perform only those maintenance instructions described in this manual. Before performing any maintenance, service, or adjustment, stop the engine, remove the key and pull the wire(s) from the spark plug(s), keeping it away from the plug(s) to prevent someone form accidentally starting the engine. If major repairs are ever needed, contact your Authorized Toro Service Dealer. • To ensure the best performance and safety, purchase only genuine Toro replacement parts and accessories to keep the Toro all Toro. Do not use “Will Fit” replacement parts and accessories as they could cause a safety hazard. 4 Safety 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 is damaged or lost. ON BACK OF HOUSING RIGHT SIDE (Part No. 92–8652) ON BACK OF CHUTE LEFT AND RIGHT SIDE (2) (Part No. 94–8079) ON BACK OF HOUSING LEFT AND RIGHT SIDE (2) (Part No. 63–2380) 5 Assembly Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION 6 QTY. Housing 1 Frame 1 Bolt 3/8–16 x 1” 6 Locknut 3/8” 6 Spring 1 Drive chain 1 Chain cover 1 Bolt 1/4–20 x 1/2” 2 Rotor assembly 1 Carriage bolt 5/16–18 x 1” 1 Discharge chute-upper section 1 Discharge chute-lower section 1 Discharge cover 1 Carriage bolt 5/16–18 x 5/8” 2 Carriage bolt 5/16–18 x 3/4” 3 Washer 5/16” 5 Locknut 5/16” 6 Belt guard bracket 1 Bolt 3/8–16 x 2” 2 Locknut 3/8” 2 Anti-sway bracket 1 Clevis pin 1 Belt cover 1 Washer 3/8” 2 Hairpin cotter 3 USE Install frame and pulley Install rotator and discharge chute assembly Install belt guard and anti-sway brackets Assembly DESCRIPTION QTY. Snowthrower assembly 1 Lift link 1 Lift rod 1 Lift assist spring 1 Adjustable link 1 Clevis pin 1 Washer 9/32” 4 Hairpin cotter 8 Lift spring 1 Retainers 2 Belt 1 Crank handle 1 Handle support 1 Clevis pin-locking 1 USE Mount snowthrower to tractor 7 Assembly Assemble Snowthrower 1. 4. Place drive chain behind, not on, gearbox drive sprocket (Fig. 1). IMPORTANT: Check that sprockets are in line with each other. If not, loosen set screws and align. 2 5. 1 Place drive chain on gearbox and large sprockets (Fig. 3). Adjust chain tension block so chain deflects 3/8”to 5/8” between sprockets (Fig. 3). IMPORTANT: Do not overtighten chain or excessive wear will occur. 6. 7 Install chain cover with (2) 1/4 x 1/2” bolts (Fig. 3). m–2581 5 Figure 1 1. Drive sprocket 2. 1 4 2. Drive chain Remove cross bar from frame, secured by (2) bolts and lock washers (Fig. 2). Slide frame into housing and secure with cross bar, bolts and lock washers, previously removed and (6) 3/8 x 1” bolts (heads to the inside) and (4) 3/8” locknuts (Fig. 2). 3 2 m–2583 Figure 3 3. Hook long end of spring between frame bolt and idler pulley bellcrank (Fig. 2). 7 4 5 3 2 6 1 m–2582 Figure 2 1. 2. 3. 4. 8 Frame Cross bar Bolt and lock washer Bolt 3/8 x 1” and Locknut 3/8” 5. Spring 6. Frame bolt 7. Bellcrank 1. Chain 2. Large sprocket 3. Tension block 4. Chain cover 5. Bolt 1/4 x 1/2” Assembly 7. Install discharge chute rotator assembly into slot in housing with 5/16 x 1” carriage bolt (head to top) and 5/16” locknut (Fig. 4). 8. Adjust rotator assembly so that worm gear is at right angle with chute, the teeth mesh fully and the chute turns freely, tighten locknut securely. 10. Install discharge chute assembly and cover onto housing with (3) 5/16 x 3/4” carriage bolts (heads to inside), (3) 5/16” washers and (3) 5/16” locknuts (Fig. 6). 1 2 3 4 1 2 2241 1 Figure 6 3 m–2584 Figure 4 1. Rotator assembly 2. Carriage bolt 5/16 x 1” 9. 1. Discharge chute cover 2. Carriage bolt 5/16 x 3/4” 3. Washer 5/16” 4. Locknut 5/16” 3. Locknut 5/16” Assemble upper discharge chute section outside and on top of lower section with (2) 5/16 x 5/8” carriage bolts (heads on inside), (2) 5/16” washers and (2) 5/16” locknuts (Fig. 5). 1 3 4 2 5 1290 Figure 5 1. Upper section 2. Lower section 3. Carriage bolt 5/16 x 5/8” 4. Washer 5/16” 5. Locknut 5/16” 9 Assembly Install Snowthrower to Tractor 4. POTENTIAL HAZARD • When snowthrower is attached to the tractor, without additional weight, the tractor may become unstable. 3 2 WHAT CAN HAPPEN • Loss of traction and stability may cause loss of tractor control. 4 HOW TO AVOID THE HAZARD • NEVER operate tractor, equipped with snowthrower, unless 100lb rear wheel weights are installed. 1. Slide anti-sway bracket into guide slot in the front of the belt guard bracket and secure to frame with clevis pin and hairpin cotter (Fig. 1 m–2588 Figure 8 1. Anti-sway bracket 2. Guide Park the machine on a level surface, disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Remove the belt cover; refer to tractor Operator’s Manual. 3. Install belt guard bracket to tractor frame with (2) 3/8 x 2” bolts and 3/8” locknuts (Fig. 7). 5. 3. Clevis pin 4. Hairpin cotter Position tractor over rear of snowthrower frame. Open mid-mount hitch and lift frame rod into hitch. Close and lock hitch (Fig. 9). 1 2 1 m–2585 Figure 9 2 1. Mid–mount hitch 3 Figure 7 1. Belt guard bracket 2. Bolt 3/8 x 2” 10 3. Locknut 3/8” m–2587 2. Frame rod Assembly 6. Open front hitch on tractor and install lift link (Fig. 10). 11. Install adjustment link between snowthrower frame, with clevis pin, and lift link arm. Secure with washers and hairpin cotters (Fig. 12). 7. Place lift rod into lower arm of lift link and secure with washer and hairpin cotter (Fig. 10). 12. Select upper hole in adjustment link depending on surface conditions; refer to Operation Section. 1 3 2 4 1 4 m–2589 2 3 4 Figure 12 Figure 10 1. Front hitch 2. Lift link m–2817 3. Lift rod 4. Washer and hairpin cotter 8. Turn Dial-A-Height knob counterclockwise and lower attachment lift all the way down. 9. Place rear of lift rod into tractor lift arm and secure with washer and hairpin cotter (Fig. 11). 1. Adjustable link 2. Lift link arm 3. Clevis pin 4. Washer and hairpin cotter 10. Hook lift assist spring between snowthrower frame rod and tab on lift rod (Fig. 11). 1 2 3 4 6 5 m–2768 Figure 11 1. Lift rod 2. Tractor lift arm 3. Washer 4. Hairpin cotter 5. Lift assist spring 6. Tab 11 Assembly 13. Raise tractor attachment lift to the transport position and place a block under snowthrower housing. Turn the Dial-A-Height knob counterclockwise, all the way, and lower the attachment to the mounting position; refer to Operation, Lowering Attachments. 17. Remove the two wing nuts and belt cover from the tractor (Fig. 14). 2 14. Raise arm of lift link into the relaxed position (Fig. 13). 15. Install lift spring between frame and lift link with retainers, inside body of spring, and secure with hairpin cotters (Fig. 13). 1 2 m–2534 Figure 14 5. Belt cover 6. Wing nut 16. Push arm of lift link down into locked position (Fig. 13). 18. Remove hairpin cotters from trunnion and bottom of yoke (Fig. 15). 4 1 3 20. Place snowthrower belt in outer pulley groove (Fig. 15). 2 4 m–2816 Figure 13 1. Lift link arm 2. Lift spring 19. Unlatch and remove locking clevis pin that secures yoke assembly to clutch shaft. Pivot yoke out and forward to remove from clutch shaft and engagement plate (Fig. 15). 21. Assemble yoke and engagement plate and attach locking clevis pin, trunnion and hairpin cotters to secure (Fig. 15). 3. Retainer 4. Hairpin cotter 1 2 3 5 4 7 6 1 m–2691 Figure 15 1. 2. 3. 4. 12 Hairpin cotter Trunnion Engagement plate Locking clevis pin 5. Yoke 6. Clutch shaft 7. Outer groove Assembly 22. Route belt around idler pulleys (Fig. 16). 25. Slide handle support over pin on frame and secure with locking clevis pin (Fig. 18). 23. Rotate idler bracket to stretch spring and slip belt over snowthrower pulley (Fig. 16), 1 2 1 3 2 2 m–2819 3 2. Idler pulley 3. Snowthrower pulley 24. Install belt cover to belt guard bracket and secure with washers and hairpin cotters (Fig. 17), 26. Slide crank handle through hole in support and secure handle to U–Joint with hairpin cotter (Fig. 19). Note: Note: 3. Locking clevis pin 1. Handle support 2. Pin Figure 16 1. Outer groove of (PTO) power take off Figure 18 m–2769 Use inner holes for single cylinder engines and outer holes for twin cylinder engines. Adjust rotor assembly if necessary so handle clears tractor hood, teeth mesh fully and chute turns freely. 4 1 1 5 3&4 2 3 2 1292 m–2591 Figure 19 Figure 17 1. Belt cover 2. Belt guard bracket 3. Washer and hairpin cotter 4. Single cylinder holes 5. Twin cylinder holes 1. Crank handle 2. Support 3. U-joint 4. Hairpin cotter 13 Assembly Removing the Snowthrower Note: 1. 2. 3. Unlatch and remove locking clevis pin and handle support from frame (Fig. 21). Save all hardware, washers and hairpin cotters for reuse when installing snowthrower. 1 Park the machine on a level surface, disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 3 Remove hairpin cotter at U-joint and slide crank handle out of support (Fig. 20). 2 m–2819 4 Figure 21 1 3. Locking clevis pin 1. Handle support 2. Pin 4. Remove hairpin cotters, washers and belt cover from belt guard bracket (Fig. 22), 2 3 1292 1 Figure 20 1. Crank handle 2. Support 3. U-joint 4. Hairpin cotter 5 3&4 2 m–2591 Figure 22 1. Belt cover 2. Belt guard bracket 3. Washer and hairpin cotter 14 4. Single cylinder holes 5. Twin cylinder holes Assembly 5. Rotate idler bracket to relax belt tension and slip belt off snowthrower pulley (Fig. 23), 2 1 6. Remove hairpin cotters from trunnion and bottom of yoke (Fig. 24). 7. Unlatch and remove locking clevis pin that secures yoke assembly to clutch shaft. Pivot yoke out and forward to remove from clutch shaft and engagement plate (Fig. 24). 8. Remove snowthrower belt from pulley (Fig. 24). 9. Assemble yoke and engagement plate and attach locking clevis pin, trunnion and hairpin cotters to secure (Fig. 24). 2 3 m–2769 Figure 23 1. Outer groove of (PTO) power take off 2. Idler pulley 10. Install the belt cover; refer to tractor Operator’s Manual. 3. Belt guide 4. Snowthrower pulley 1 2 3 5 4 7 6 1 m–2691 Figure 24 1. 2. 3. 4. Hairpin cotter Trunnion Engagement plate Locking clevis pin 5. Yoke 6. Clutch shaft 7. Pulley 15 Assembly 11. Raise attachment lift to the transport position and place a block under snowthrower housing. Turn the Dial-A-Height knob counterclockwise, all the way, and lower the attachment to the mounting position; refer to Operation, Lowering Attachments. 14. Remove hairpin cotter, washer and adjustment link from lift link arm (Fig. 26). 12. Raise arm of lift link into the relaxed position (Fig. 25). 2 13. Remove lift spring from between frame and lift link (Fig. 25). 3 1 m–2817 4 1 Figure 26 1. Adjustable link 2. Lift link arm 3 3. Washer and hairpin cotter 15. Remove hairpin cotter, washer and lift rod from lower arm of lift link (Fig. 27). 2 4 m–2816 16. Open front hitch on tractor and remove lift link (Fig. 27). Figure 25 1. Lift link arm 2. Lift spring 3. Retainer 4. Hairpin cotter 1 3 4 m–2589 2 Figure 27 1. Front hitch 2. Lift link 16 3. Lift rod 4. Washer and hairpin cotter Assembly 17. Turn Dial-A-Height knob counterclockwise and lower attachment lift all the way down. 18. Unhook lift assist spring between snowthrower frame rod and tab on lift rod (Fig. 28). 19. Remove hairpin cotter, washer and lift rod from tractor lift arm (Fig. 28). 1 2 3 4 6 5 m–2768 Figure 28 1. Lift rod 2. Tractor lift arm 3. Washer 4. Hairpin cotter 5. Lift assist spring 6. Tab 17 Operation Operating the Power Take Off (PTO) POTENTIAL HAZARD • When snowthrower is attached to the tractor, without additional weight, the tractor may become unstable. WHAT CAN HAPPEN • Loss of traction and stability may cause loss of tractor control. HOW TO AVOID THE HAZARD • NEVER operate tractor, equipped with snowthrower, unless 100lb rear wheel weights are installed. POTENTIAL HAZARD • Rotating auger can cut off fingers, hands or other body parts and throw objects. The power take off (PTO) engages and disengages power to the electric clutch. While the ignition key is in the “RUN” or “LIGHTS” positions and the power take off (PTO) is engaged “ON”, the PTO light, in the Indicator Module, will be “ON”. When this light is “ON” it is a reminder; the starter will not crank and to turn off the PTO before getting off. Engaging the Power Take Off (PTO) 1. Depress the brake and/or clutch pedal(s) to stop the machine. 2. Push the power take off (PTO) to “ON” (Fig. 29). WHAT CAN HAPPEN • Contact with rotating auger and thrown debris can cause severe injury or death. 2 HOW TO AVOID THE HAZARD 1 • Stay away from the discharge and auger openings while operating the snowthrower. • Keep your hands, feet, and any other part of your body or clothing away from concealed, moving or rotating parts. • Use a stick, not your hand, to remove obstructions from discharge chute or auger housing. • Before adjusting, cleaning, repairing and inspecting the snowthrower and before unclogging the discharge chute, shut off the engine and wait for all moving parts to stop. Move the power take off (PTO) to “OFF” and rotate the ignition key to “OFF.” Remove the key. 18 m–2519 Figure 29 1. Off-Disengaged 2. On-Engaged Disengaging the Power Take Off (PTO) 1. Depress the brake and/or clutch pedal(s) to stop the machine. 2. Pull the power take off (PTO) to “OFF” (Fig.29). Operation Attachment Lift Lever Attachment Power Lift The attachment lift lever (Fig. 30) is used to manually raise and lower attachments. The attachment power lift (Fig. 31) is used to raise and lower attachments. Raising Attachments Raising Attachments 1. Depress the clutch and/or brake pedal(s) to stop the machine. 1. Start the engine, refer to; Starting and Stopping the Engine, in the Tractor Operator’s Manual. 2. Pull attachment lift lever rearward until latch locks. In this position the lift will hold the attachment in the up, or raised position. 2. Pull the lift lever in the “UP” direction to raise the attachment lift (Fig. 31). This will lift and hold the attachment in the up, or raised position. Lowering Attachments Lowering Attachments 1. Depress the clutch and/or brake pedal(s) to stop the machine. 1. Start the engine, refer to; Starting and Stopping the Engine, in the Tractor Operator’s Manual. 2. Pull attachment lift lever rearward, to release lift pressure, and push the button on top to release the latch. Move lift lever forward to lower attachment. 2. Push the lift lever in the “DOWN” direction to lower the attachment lift (Fig. 31). This will lower the attachment lift. 2 2 1 1 3 m–2317 m–2514 Figure 30 1. Lift lever 2. Button Figure 31 1. Lift lever UP 2. Lift lever DOWN 3. Dial-A-Height 19 Operation Adjusting Dial-A-Height The Dial-A-Height control (Fig. 30) is used to limit the downward travel of the attachment. The Dial-A-Height knob is rotated to change the location of this stop, up or down. 1. Raise the attachment lift: Refer to Raising Attachments. In the raised position the Dial-A-Height knob (Fig. 30) can be rotated to change the stop location. Turn clockwise to raise and counterclockwise to lower the height of the attachment. 2. The discharge chute can be rotated 180° side to side. The direction is controlled by turning the crank handle (Fig. 32). The chute deflector, on top of the discharge chute, can be moved up and down to control the height and distance snow is thrown (Fig. 32). 3 2 The Dial-A-Height indicator (Fig. 30) will show the change, high to low, in attachment lift height as adjustment is made. 1 1292a Adjusting Discharge Chute Figure 32 1. Discharge chute 2. Crank handle POTENTIAL HAZARD • Rotating auger can cut off fingers, hands or other body parts and throw objects. WHAT CAN HAPPEN • Contact with rotating auger and thrown debris can cause severe injury or death. HOW TO AVOID THE HAZARD • Stay away from the discharge and auger openings while operating the snowthrower. • Keep your hands, feet, and any other part of your body or clothing away from concealed, moving or rotating parts. • Use a stick, not your hand, to remove obstructions from discharge chute or auger housing. • Before adjusting, cleaning, repairing and inspecting the snowthrower and before unclogging the discharge chute, shut off the engine and wait for all moving parts to stop. Move the power take off (PTO) to “OFF” and rotate the ignition key to “OFF.” Remove the key. 20 1290a 3. Chute deflector Operation Tips for Throwing Snow Remove snow as soon as possible after it falls. This produces best snow removal results. Adjust skids to match the type of surface being cleaned; refer to Adjusting Skids. The snowthrower is designed to clean snow down to the contact surface, but there are times when the front of the snowthrower may tend to ride up. If this happens, reduce forward speed. Discharge snow downwind whenever possible, and overlap each pass to ensure complete snow removal. If wheels slip, shift into a lower gear to reduce forward speed. Run snowthrower for a few minutes after clearing snow so moving parts do not freeze. Engage power take off (PTO) to clear any remaining snow from inside housing. Do not overload snowthrower by clearing snow at too fast a rate. If engine slows down, reduce forward speed. Always use full throttle (maximum engine speed) when throwing snow. In wet or slushy conditions, clogging of the discharge chute will be reduced by maintaining maximum engine speed and by not overloading the engine. In some snow and cold weather conditions, some controls and moving parts may freeze. Therefore, when any control becomes hard to operate, stop the machine and wait for all moving parts to stop; then check all parts for freeze up. DO NOT USE EXCESSIVE FORCE AND TRY TO OPERATE THE CONTROLS WHEN FROZEN. Free all controls and moving parts before operating. 21 Maintenance Service Interval Chart Service Operation Each Use 5 Hours 25 Storage Hours Service Fall Service Grease–drive shaft bearings X X X Oil–drive chain X X X Oil–check gear box X X Belt–check for wear/cracks X X Chipped Surfaces–paint X Scraper–check for wear X Notes X POTENTIAL HAZARD • If you leave the key in the ignition switch, someone could start the engine. WHAT CAN HAPPEN • Accidental starting of the engine could seriously injure you or other bystanders. HOW TO AVOID THE HAZARD • Remove the key from the ignition switch and pull the wire off the spark plug before you do any maintenance. Also push the wire aside so it does not accidentally contact the spark plug. 22 Maintenance Greasing and Lubrication Service Interval/Specification Grease and oil the machine after every 25 operating hours or once a year, whichever occurs first. Grease Type: General-purpose grease. Oil Type: SAE 10W or 10W30. 1280 Figure 33 How to Grease 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. m–2583 Check Gear Box Lubricant 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. Connect a grease gun to the fitting. Pump grease into the fittings. 2. Clean area around plug with a rag and remove plug (Fig. 34). 4. Lubricate the impeller shaft bearing (Fig. 33). 3. Add SAE 90 gear oil until level with bottom of hole in housing (Fig. 34). 5. Wipe up any excess grease. 2. Clean the grease fittings with a rag. Make sure to scrape any paint off the front of the fitting(s). 3. Oil Drive Chain 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Coat the entire chain with oil and allow to penetrate each roller (Fig. 33). 3. 4. Place a few drops of oil on discharge chute rotator shaft and discharge chute mounting (Fig. 33). 1 m–2362 Figure 34 1. Plug Wipe off excess oil. 23 Maintenance Adjusting Skids Replacing Scraper Blade The distance between the scraper blade and the ground is controlled by skids on each side of the housing. The height can be adjusted so the scraper blade will not catch on uneven surfaces The scraper blade contacts the ground preventing damage to the snowthrower housing. Periodically inspect the scraper blade for wear. When scraper becomes worn, before working surface contacts the housing, replace the scraper blade. 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Move snowthrower to a level surface. 3. Loosen nuts securing skids to the housing until the skids slide up and down easily (Fig. 35). 4. Raise or lower skids equally on both sides, to obtain level scraping action, and tighten nuts (Fig. 35). Note: 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Raise the attachment lift lever: Refer to Raising Attachments, and support the housing off the ground. 3. Remove nuts,washers, carriage bolts and scraper blade (Fig. 36). 4. Replace scraper blade and install with previously removed hardware (Fig. 36). On smooth, paved surfaces, scraper blade can be close to the surface On uneven, gravel or crushed rock surfaces, adjust skids to raise scraper, to prevent catching or picking up rocks. 2 3 2 4 1 1281a Figure 36 3 1. Nut 2. Washer 1 m–2822 Figure 35 1. Skid 2. Housing 3. Nut IMPORTANT: The scraper should be higher above the pavement if the pavement surfaces on which the snowthrower will be used are cracked, rough or uneven. 24 3. Carriage bolt 4. Scraper blade Maintenance Adjusting Drive Chain Tension Replace Drive Belt Check the drive chain tension after every 25 operating hours or once a year, whichever occurs first. Adjustment as necessary to maintain proper tension. 1. Remove belt covers from tractor and snowthrower (Fig. 38), 1 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Remove chain cover (Fig. 37). 3. Adjust chain tension block so chain deflects 3/8”to 5/8” between sprockets (Fig. 37). 4. 2 m–2591 Figure 38 IMPORTANT: Do not overtighten chain or excessive wear will occur. 1. Belt cover–tractor Install chain cover with (2) 1/4 x 1/2” bolts (Fig. 37). 2. Remove hairpin cotters from trunnion and bottom of yoke (Fig. 39). 3. Unlatch and remove locking clevis pin that secures yoke assembly to clutch shaft. Pivot yoke out and forward to remove from clutch shaft and engagement plate (Fig. 39). 4. Remove snowthrower belt from pulley (Fig. 39). 5. Assemble yoke and engagement plate and attach locking clevis pin, trunnion and hairpin cotters to secure (Fig. 39). 2 3 1 4 2. Belt cover–snowthrower m–2583 1 Figure 37 1. Chain cover 2. Bolt 1/4 x 1/2” 2 3. Chain 4. Tension block 3 5 4 7 6 1 m–2691 Figure 39 1. 2. 3. 4. Hairpin cotter Trunnion Engagement plate Locking clevis pin 5. Yoke 6. Clutch shaft 7. Pulley 25 Maintenance 6. Remove rear idler and replace belt (Fig. 40). Install rear idler. 7. Install belt covers on tractor and snowthrower (Fig. 38), 1 2 3 26 1. Before long term storage wash the machine with mild detergent and water to remove dirt and grime from the entire machine. 2. Check the condition of the scraper blade; refer to Reversing Scraper Blade, page 24. 3. Check the condition of the drive belt and chain. 4. Grease and oil the snowthrower; refer to Greasing and Lubrication, page 23. 5. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged or defective. 6. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 7. Coat inside auger housing and discharge chute with automotive wax to prevent rust and reduce the sticking of snow to these surfaces. 8. Store the machine in a clean, dry garage or storage area. Cover the machine to protect it and keep it clean. m–2769 Figure 40 1. Outer groove of (PTO) power take off Storage 2. Rear idler pulley 3. Snowthrower pulley Troubleshooting PROBLEM Snow does not discharge g Auger does not rotate. Abnormal vibration. POSSIBLE CAUSES CORRECTIVE ACTION 1. Discharge chute plugged. 1. Clean chute with a stick. 2. Auger does not rotate. 2. See auger does not rotate. 3. Auger speed to low. 3. Move throttle to “FAST”. 4. Forward speed to slow. 4. Increase ground speed. 1. Snow frozen to auger or housing. 1. Scrape snow off with a stick. 2. Drive belt tension low. 2. Adjust belt tension. 3. Drive belt is worn, loose or broken. 3. Install new drive belt. 4. Drive belt is off pulley. 4. Install blade drive belt and check idler pulley and belt guides for correct position. 5. Drive chain broken. 5. Replace or repair chain. 1. Snow frozen to auger. 1. Scrape snow off with stick. 2. Drive belt off pulley. 2. Install drive belt and check idler pulley for correct position. 3. Engine mounting bolts are loose. 3. Tighten engine mounting bolts. 4. Loose engine pulley, idler or snowthrower pulley. 4. Tighten the appropriate pulley. 5. Engine pulley is damaged. 5. Contact Authorized Service Dealer. 27
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