FORM NO. 3318184 Mowers for Lawn & Garden Tractors Model No. 78280 — & Up Model No. 78285 — & Up Model No. 98280 & Up Model No. 98285 — & Up Model No. 9863220 —T6T0001 & Up Model No. 9863221 — T6V0001 & 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 .. ..ol Foreparts ..o Mower Preparation . . Tractor Preparation Installing the Mower Transport Height Adjustment . . Side-to-Side Mower Leveling Front-to-Rear Blade Slope . . . Removing the Mower Removing the Mulching Baffle Installing the Mulching Baffle . Operation Side Discharge . ...l Page Operating the Power Take OFf (PTO) 13 Attachment Lift Lever L. .. 14 Attachment Power Lift .. .. 14 Adjusting Dial-A-Height .. ..
Safety Safety and Instruction Decals Safety decals and instructions arg easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. ON GRASS DEFLECTOR ON MOWER LEFT AND (Part No. 83-1122) DISCHARGE CHUTE {Part No. TR93D1122) (Part No. 92-7108) (Part No. TR92D7108) DANGER ROTATING BLADES UNDER ENTIRE MOWER DECK, T KEEP HANDS and FEET AWAY., THROWN OBJECTS ARE al Sleighs KEEP DEFLECTOR IN PLACE, KEEP BYSTANDERS AWAY.
Installation Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTy.
Installation Mower Preparation 8. Place adjustable links, with bolt heads down, between brackets on the front of the mower 1. Attach Gage wheels to the outside of arms on (Fig. 3). rear carrier assembly. Grease fitting on wheel . 6. Secure to brackets with 1/2” washers and 17 must face out (Fig. 1). {26 mm) cotter pins (Fig. 3). 2. Secure with shoulder bolt and 3/8” lock nut, with internal locking patch on threads (Fig. 1). Note: Grease wheels, Figure 3 3 1. Adjustable link 3 Washer 1/2" -— 2.
10, Place springs into brackets on mower with hooked ends over raised back (Fig. 4). Align grass deflector with holes in brackets and spring straight ends in space under hinge and above deflector (Fig. 4). Secure deflector to bracket with (89 mm) bolts through grass deflector, springs and brackets. Secure with 3/8” lock nuts (Fig. 4). Lift grass deflector and check that it is spring loaded and pivots freely to the full down position.
Installation Tractor Preparation L 2. 1. Transport height nut Park the machine on a level surface and lower attachment lift to the full “DOWN?” position. Refer to Operation: Attachment Lift page NGO TAG. Note: Turn Dial-A-Height control to allow lii te go to full “MOUNTING” position. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key.
1. Up-stop (long) 2. Jolt Figure 7 3. Existing bolts 3380 Installation Installing the Mower 1 5 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. Turn the front wheels straight ahead and raise attachment lift lever all the way to the Latched position; refer to tractor Operator’s Manual, Slide the mower under tractor from right side, turning front wheels as necessary.
Installation Mg Figure 8 1. Tarmac 5. Washer 1/2° 2. Washer 34" 6. Hair pin cotter-small 3. Hair pin cotter-large 7. Link pin 4, Attachment tilt 9. Pull on drive belt and rotate onto engine pulley to install (Fig. 9). Note: Make sure belt is properly located in engine and deck pulleys and around idler pulley. 10. Adjust belt guide so distance between belt and guide is 1/8” (4 mm) (Fig. 9). Figure Top View 1. idler pulley 3. Engine pulley 2.
Transport Height Adjustment Transport height should be properly adjusted after Tractor Preparation, page 6; however if the rear brackets contact the footrest or up-stop contacts the top of mower in the raised position, adjustment is required. 1. Adjust by turning transport height not, (Fig. 10) on lift mechanism, clockwise to raise or counterclockwise to lower mower. 2. Adjust nut until there is 1/4” (6 mm) clearance between rear brackets and footrest and up-stop and mower.
Installation Side-to-Side Mower Leveling The mower blades must he level from side to side. Check the side-to-side level any time you install the mower or when you see an uneven futon your lawn. Before you level the mower, set the air pressure in the front and rear tires to 12 psi (.85 kappa. 3” to 4” (76-102 mm) Height-of-Cut Range ‘When the mower height-of-cut is set to the 3” to 4”7 (76-102 mm) range the mower is suspended from the tractor. 1.
installation Front-to-Rear Blade Slope 6. Check the front-to-rear blade slope any time you To adjust front-to rear blade level loosen jam nut on front adjustable link. (Fig. 14). Rotate the bolt on front adjustable link to change install the mower. Before checking the slope, set air front-to rear blade level (Fig. 14). pressure in the front and rear tires to 12 psi (85 kappa. If the front blade tip is not (0-9.
Installation Removing the Mower 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, turn Dial-a-Height knob counterclockwise, all the way, and lower the attachment lift lever to the mounting position; refer to tractor Operator’s Manual. 3. Remove mower drive belt from engine pulley. 4.
Removing the Mulching Baffle Models 78285 and 9863221 only. L Remove lock nuts from top, discharge side and center flange of right side baffle (Fig. 16). Lower baffle and slide out discharge opening to remove. Note: Only the right side baffle need be removed for side discharge mowing. Install previously removed (16 i) bolts and 5/16” lock nuts in open holes of mower for safety (Fig. 16). 1 2 Figure 16 Baffle left side 3.
Operation Side Discharge 4\ DANGER POTENTIAL HAZARD » Without the grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris. WHAT CAN HAPPEN * Contact with rotating mower blade(s) and thrown debris will cause injury or death. HOW TO AVOID THE HAZARD « NEVER remove the grass deflector from the mower because the grass deflector routes material down toward the turf.
Attachment Lift Lever The attachment lift lever (Fig. 19) is used to raise and lower various attachments, Raising Attachments 1 2. Depress the brake pedal to stop the machine. Pull attachment lift lever rearward until latch locks. In this position the lift will hold the attachment in the up, or raised position, Lowering Attachments 1. 2, Depress the brake and/or clutch pedal(s) to stop the machine.
Operation Adjusting Dial-A-Height Adjusting Gage Wheels The Dial-A-Height control (Fig. 19} is used to it The Gage wheels (on certain medals) must be the downward travel of the attachment. The adjusted in the proper hole location for each Dial-A-Height knob is rotated to change the location height-of-cut position. of this stop, up or down. 1. Afire adjusting height-of-cut. raise the 1. Raise the attachment lift lever: Refer to Raising attachment lift lever: Refer to Raising Attachments.
Tips for Mowing Grass Fast Throttle Setting For best mowing and maximum air circulation, operate the engine at “FAST.” Air is required fo thoroughly cot grass clippings, so do not set the height-of-cut so low, as to totally surround the mower by uncut grass. Always try to have one side of the mower free from uncut grass, which allows air to be drawn into the mower.
Maintenance Service Interval Chart Each 5 25 |Storage | Spring Service Operation Use | Hours | Hours | Service | Service Notes Cutter Blade—check X X X Grease~Mower spindles, wheels X X Checklist for wear/cracks X Mower Housing—clean X X X Chipped Acquaintanceship X POTENTIAL HAZARD IO « If you leave the key in the ignition switch, someone could start the engine.
Cutting Blade To assure a superior quality of cut, keep the blade(s) sharp. For convenient sharpening and replacement, you may want to have an extra blade(s). FIQU7YTN POTENTIAL HAZARD * A blade that is worn or damaged could break apart and pieces could be thrown at bystanders or at you as you use the mower. WHAT CAN HAPPEN « Pieces of blade that may be thrown could seriously injure or kill you or bystanders. HOW TO AVOID THE HAZARD # Periodically inspect the blade for wear and damage.
Maintenance Sharpening the Blade(s) 1. Use agile to sharpen the cutting edge at both 1. ends of the blade (Fig. 24). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. /1 Figure 24 1. Gubernatorial angle 2. Check the balance of the blade by putting tonality blade balance (Fig. 25). If the blade stays ina horizontal position, the blade is balanced and can be used.
Greasing and Lubrication Service Interval/Specification Grease the mower after every 25 operating hours or once a year, whichever occurs first. Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: General-purpose grease. How to Grease 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” 1o stop the engine. Remove the key 2. Clean the grease fittings with a rag. Make sure to scrape any paint off the end of the fitting(s). 3.
Maintenance 2. Adjust idler spring tension until length between hooks is (140 mm) (Fig. 29). 2817 Figure 29 Top View 1. Innerspring 2. 512" (140 mm) 3. Install left and right pulley covers with previously removed mounting screws. 4. Install the mower; refer to Installing the Mower, page 7. 22 Power Take Off (PTO) Belt Removing PTO Belt 1. Remove the mower; refer to Removing the Mower, page 12. 2, Remove left pulley cover mounting screws and pulley cover. Remove PTO belt (Fig. 30). Installing the PTO Belt L.
Storage L Clean dirt and chaff from the outside of the engine’s cylinder head fins and blower housing. Also remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine, shrouding, and the top of the mower. IMPORTANT: You can wash the machine with mild detergent and water. Do not pressure wash the machine. Avoid excessive use of water, especially near the control panel, lights, engine, and the battery.
Troubleshooting PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION Abnormal vibration. Cutting blade(s) is bent or unbalanced. Bide mounting bolt is loose. Engine mounting bolts are footie. Loose engine pulley, idler pulley, or blade pulley. Engine pulley is damaged. install new cutting blade(s). Tighten: blade mounting bold. Tighten: engineering mounting bolts. Tighten: the appropriate pulley. Contact Authorized Service Dealer. Blade(s) does not rotate, Blade drive belt is worn, loose or broken.