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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.

FORM NO. 3319–559 Rev A

Wheel Horse



42” Mower

for

Lawn and Garden Tractors

Model No. 78231 – 8900001 & Up

Содержание 78231

Страница 1: ...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 FORM NO 3319 559 Rev A Wheel Horse 42 Mower for Lawn and Garden Tractors Model No 78231 8900001 Up ...

Страница 2: ... 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...

Страница 3: ...ower Leveling 7 Front to Rear Blade Slope 8 Removing the Mower 9 Operation 10 Side Discharge 10 Operating the Power Take Off PTO 10 Page Attachment Lift Lever 11 Attachment Power Lift 11 Adjusting Dial A Height 12 Adjusting Anti Scalp Rollers 12 Tips for Mowing Grass 13 Maintenance 14 Service Interval Chart 14 Cutting Blade 15 Greasing and Lubrication 17 Blade Drive Belt 17 Storage 18 Troubleshoot...

Страница 4: ...d 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 GRASS DEFLECTOR Part No 93 1122 ON MOWER RIGHT SIDE Part No 116286 ON MOWER LEFT AND RIGHT SIDES Part No 92 7108 ...

Страница 5: ...c washer Rubber bushing Jam nut 3 8 16 1 1 1 1 2 1 1 Install grass deflector Rear link Washer 1 2 Cotter pin 1 Hairpin cotter 2 9 16 1 2 1 2 Install rear link Adjustable link Washer 1 2 Cotter pin 1 Hairpin cotter 2 9 16 1 2 1 1 Install front link to mower V belt Hairpin cotter 3 3 8 Washer 3 4 1 2 2 Install mower to tractor Operator s Manual 1 Read before operating ...

Страница 6: ...ring loaded in the down position Lift chute up to test that it snaps to the full down position 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 rem...

Страница 7: ...165 1 2 3 4 5 Figure 3 1 Front adjustable link 2 Washer 1 2 3 Cotter pin 1 4 Attachment lift 5 Hairpin cotter 2 9 16 Installing the Mower 1 Park the tractor on a flat 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 Turn the front wheels fully to the left and raise attachment lift lever all the way to the latched po...

Страница 8: ...1 2 3 Hairpin cotter 2 916 9 Pull on idler pulley to relax belt tension and install mower drive belt into the top or single engine drive pulley groove Fig 6 2 1 Figure 6 Top View 1 Mower belt 2 Engine pulley Note Ensure that the belt is properly located in the engine mower and idler pulleys 10 Check mower level refer to Side to Side Mower Leveling page 7 and Front to Rear Blade Slope page 8 11 Rai...

Страница 9: ...to 4 Height of Cut Range When the mower height of cut is set to the 2 3 4 to 4 range the mower is suspended from the tractor 1 Park the tractor on a flat 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 lever all the way to the latched position 3 Carefully rotate blade s side to side Fig 8 Meas...

Страница 10: ...brake and turn the ignition key to OFF to stop the engine Remove the key 2 Check and adjust side to side blade level if you have not checked the setting refer to Side to Side Mower Leveling page 7 3 Adjust the Dial A Height knob so the height of cut is in the middle of the range and lower attachment lift 4 Carefully rotate blades so they are facing front and rear Fig 10 5 Measure between the tip o...

Страница 11: ...ounterclockwise all the way and lower the attachment lift lever to the mounting position refer to tractor Operator s Manual 3 Pull on idler pulley to relax belt tension and remove mower drive belt from engine drive pulley 4 Remove 2 9 16 hairpin cotter and 1 2 washer from front adjustable link and remove from front lift arm Fig 12 m 3536 1 2 3 Figure 12 1 Adjustable link 2 Washer 1 2 3 Hairpin cot...

Страница 12: ...ft 8 Turn the front wheels fully to the left and raise attachment lift lever all the way to the latched position refer to tractor Operator s Manual Slide the mower out from under the chassis to the the right side Fig 14 Note Save all hardware washers and hairpin cotters for use when installing deck m 3625 Figure 14 ...

Страница 13: ... key to OFF Also remove the key and pull the wire off the spark plug s 1 The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf Operating the Power Take Off PTO 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...

Страница 14: ...e latch Move lift lever forward to lower attachment 1205 3 2 4 5 6 1 Figure 16 1 Lift lever 2 Button 3 Dial A Height 4 Indicator 5 High 6 Mounting position Attachment Power Lift The attachment power lift on some models Fig 17 is used to raise and lower attachments Raising Attachments 1 Turn key to the ON or RUN position Fig 17 2 Push the lift switch in the UP direction to raise the attachment lift...

Страница 15: ...show the change high to low in attachment lift height as adjustment is made Adjusting Anti Scalp Rollers The anti scalp rollers guide the mower over uneven turf without scalping the lawn For most cutting conditions they should be located in the lower hole When cutting in 1 1 2 height of cut or lower move the anti scalp rollers to the upper hole position 1 Raise the attachment lift lever refer to R...

Страница 16: ...n in early spring As the grass growth rate slows in mid summer mow less frequently If you cannot mow for an extended period first mow at a high cutting height then mow again 2 days later at a lower height setting Avoid Cutting Too Low If the cutting width of the mower is wider than the mower you previously used raise the cutting height to ensure uneven turf is not cut too short Long Grass If the g...

Страница 17: ...es paint X Tires check pressure X 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 acci...

Страница 18: ...ower page 9 2 Inspect the cutting edges Fig 19 If the edges are not sharp or have nicks remove the blade s and sharpen them refer to Sharpening the Blade s page 17 3 Inspect the blade s especially the curved area Fig 19 If you notice any damage wear or a slot forming in this area Fig 19 immediately install a new blade 151 1 2 3 Figure 19 1 Cutting edge 2 Curved area 3 Wear slot forming Removing th...

Страница 19: ...ig 22 If the blade stays in a horizontal position the blade is balanced and can be used If the blade is not balanced file some metal off the back side of the blade Repeat this procedure until the blade is balanced 1 2 Figure 22 1 Blade 2 Balancer Installing the Blade s 1 Install the washer blade flat washer and the blade nut Fig 23 Important The curved part of the blade must be pointing up to ensu...

Страница 20: ... to the fitting Pump grease into the fittings 4 Wipe up any excess grease Where to Add Grease 1 Lubricate the blade spindles idler pulley arm and gage wheel bearings Fig 24 m 3136 Figure 24 Blade Drive Belt Removing the Blade Drive Belt 1 Remove the mower refer to Removing the Mower page 9 2 Remove the pulley cover mounting screws and pulley covers from both blade pulleys Fig 25 3 Remove the belt ...

Страница 21: ...heavy buildup of grass and dirt from the underside of the mower Then wash the mower with a garden hose 3 Check the condition of the blade s refer to Cutting Blade page 16 4 Check the condition of the blade drive belt 5 Grease the mower deck refer to Greasing and Lubrication page 18 6 Check and tighten all bolts nuts and screws Repair or replace any part that is damaged or defective 7 Paint all scr...

Страница 22: ...ey 4 Tighten the appropriate pulley 5 Engine pulley is damaged 5 Contact Authorized Service Dealer Blade s does not rotate 1 Blade drive belt is worn loose or broken 1 Install new blade drive belt 2 Blade drive belt is off pulley 2 Install blade drive belt and check idler pulley and belt guides for correct position Uneven cutting height 1 Tire pressure is incorrect 1 Set tire pressure g g 2 Mower ...

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