FORM NO. 3318–826 Wheel Horse 44” Snowthrower for Garden Tractors Model No. 79361 – 6900001 & Up Operator’s Manual IMPORTANT: Read this manual carefully. It contains information about your safety and the safety of others. Also become familiar with the controls and their proper use before you operate the product.
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.
Contents 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 . . . . . . . . . . . . . . . .
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) 2 ON BACK OF HOUSING LEFT AND RIGHT SIDE (2) (Part No.
Assembly Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY.
Assembly DESCRIPTION 4 QTY.
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).
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).
Assembly Install Snowthrower to Tractor 4. POTENTIAL HAZARD • When snowthrower is attached to the tractor, without additional weight, the tractor may become unstable. 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. 3 2 WHAT CAN HAPPEN 4 • Loss of traction and stability may cause loss of tractor control.
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 3.
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.
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 1. Handle support 2. Pin Figure 16 1. Outer groove of (PTO) power take off Figure 18 m–2769 2. Idler pulley 3. Snowthrower pulley 24. Install belt cover to belt guard bracket and secure with washers and hairpin cotters (Fig. 17), 26.
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 1.
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.
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.
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 14 4. Hairpin cotter 5. Lift assist spring 6.
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.
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.
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. 2. 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.
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.
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.
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.
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.
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.
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 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 21. 3. Check the condition of the drive belt and chain. 4. Grease and oil the snowthrower; refer to Greasing and Lubrication, page 20. 5.
Troubleshooting PROBLEM Snow does not discharge Auger does not rotate. Abnormal vibration. 24 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.