FORM NO. 3318–825 Rev. A Wheel Horse 42” Snowthrower for Classic Garden Tractors Model No. 79360 – 7900001 & 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 . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loose Parts . . . . . . . . . . . . . . . . . . . . . . . . . Assemble Housing . . . . . . . . . . . . . . . . . . . Installing 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. 2 ON BACK OF HOUSING LEFT SIDE (Part No. 86–5100) ON BACK OF HOUSING (Part No. 92–8652) ON BACK OF CHUTE LEFT AND RIGHT SIDE (2) (Part No. 63–3740) ON BACK OF HOUSING LEFT AND RIGHT SIDE (2) (Part No.
Installation Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY.
Installation DESCRIPTION 4 QTY.
Installation Assemble Housing 1. 2. Tip housing onto front and insert frame into snowthrower with angle bend up (Fig. 1). Fasten frame with (4) 3/8 x 1” bolts (heads to the outside) and (4) 3/8” locknuts. Rotate the housing down and position top plate outside top flange of housing. Secure with (3) 3/8 x 1” carriage bolts (heads on inside) (3) 3/8” washers and (3) 3/8” locknuts (Fig. 2). 5.
Installation 7. Install discharge chute and deflector shield onto housing with (3) 5/16 x 3/4” carriage bolts (heads to inside), (3) 5/16’ washers and (3) 5/16” locknuts (Fig. 4). 1 2 3 4 Installing Snowthrower to Tractor 5 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.
Installation 2. Position snowthrower on a level surface with lift tube extending rearward. 3. Open front hitch on tractor and park the tractor behind snowthrower, with lift tube between the front wheels. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 4. Slide snowthrower mounting frame into front hitch. Close and lock front hitch (Fig. 7). 5.
Installation 10. Remove the belt cover; refer to tractor Operator’s Manual. 15. Route belt between belt guide and around idler pulleys (Fig. 10). 11. Remove hairpin cotters from trunnion and bottom of yoke (Fig. 9). 16. Rotate idler bracket to stretch spring and slip belt over snowthrower pulley (Fig. 10), 12. Unlatch and remove clevis pin that secures yoke assembly to clutch shaft. Pivot yoke out and forward to remove from clutch shaft and engagement plate (Fig. 9). 4 2 13.
Installation 17. Open mid hitch and install handle support (Fig. 11). Align notch on handle with hitch rod so it does not rotate. Removing the Snowthrower Note: 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. 2. Raise attachment lift to the transport position and place a block under snowthrower housing.
Installation 4. Open mid hitch and remove handle support (Fig. 14). 6. Remove hairpin cotters from trunnion and bottom of yoke (Fig. 16). 7. Unlatch and remove clevis pin that secures yoke assembly to clutch shaft. Pivot yoke out and forward to remove from clutch shaft and engagement plate (Fig. 16). 8. Remove belt from pulley (Fig. 16). 9. Assemble yoke and engagement plate and attach clevis pin, trunnion and hairpin cotters to secure (Fig. 16). 2 1 m–2789 Figure 14 1. Handle support 10.
Installation 11. Lower attachment lift all the way. 16. Remove hairpin cotter and washer to disconnect lift tube from housing. 12. Loosen locknut on eyebolt to relax spring tension (Fig. 17). Unhook lift assist spring from frame cross rod. 13. Remove hairpin cotter to disconnect lift rod from attachment lift (Fig. 17). 1 14. Remove lift rod (and optional spacer washers) from lift tube (Fig. 17). 2 1 3 2 3 1288 Figure 19 5 4 1. Lift tube 2. Washer Note: 7 6 m–2787 3.
Operation Operating the Power Take Off (PTO) POTENTIAL HAZARD • When snowthrower is attached to the tractor, without additional weight, the tractor may become unstable. The power take off (PTO) engages and disengages power to the clutch. WHAT CAN HAPPEN • Loss of traction and stability may cause loss of tractor control. While the ignition key is in “RUN” position and the power take off (PTO) is engaged, the PTO light in the Indicator Module, will be “ON”.
Operation Attachment Lift Lever Attachment Power Lift The attachment lift lever (Fig. 21) is used to raise and lower various attachments. The attachment power lift (Fig. 22) is used to raise and lower attachments. Raising Attachments Raising Attachments 1. Depress the clutch and brake pedals to stop the machine. 1. Start the engine, refer to; Starting and Stopping the Engine; in tractor Operator’s Manual. 2. Pull attachment lift lever rearward until latch locks.
Operation Adjusting Dial-A-Height The Dial-A-Height control (Fig. 21) 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. 21) can be rotated to change the stop location. Turn clockwise to raise and counterclockwise to lower the height of the attachment. 2.
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 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 Oil Drive Chain Service Interval/Specification Grease and oil the machine after every 25 operating hours or once a year, whichever occurs first. 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. 25). 3. Place a few drops of oil on discharge chute rotator shaft and discharge chute mounting (Fig. 25). 4.
Maintenance Adjusting Skids Reversing 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, reverse the scraper blade. 1.
Maintenance Adjusting Drive Chain Tension Storage 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. Before long term storage wash the machine with mild detergent and water to remove dirt and grime from the entire machine. 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.
Troubleshooting PROBLEM Snow does not discharge g Auger does not rotate. Abnormal vibration. 20 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.