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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. 3319–776GB

Wheel Horse

38” Side Discharge

Mower

for

Lawn & Garden Tractors

Model No. 78218 – 8900001 & Up

Summary of Contents for 78218

Page 1: ...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 776GB Wheel Horse 38 Side Discharge Mower for Lawn Garden Tractors Model No 78218 8900001 Up ...

Page 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...

Page 3: ...nt to Rear Blade Slope 7 Removing the Mower 9 Operation 10 Operating the Power Take Off PTO 10 Attachment Lift Lever 11 Attachment Power Lift 11 Adjusting Dial A Height 12 Adjusting Anti Scalp Rollers 12 Tips for Mowing Grass 13 Page Maintenance 14 Service Interval Chart 14 Cutting Blade 15 Greasing and Lubrication 17 Blade Drive Belt 17 Washing Underside of Mower 18 Storage 19 Troubleshooting 20 ...

Page 4: ...y visible to the operator and are located near any area of potential danger Replace any decal that is damaged or lost ON GRASS DEFLECTOR AND ON MOWER RIGHT SIDE Part No 93 7010 UNDER GRASS DEFLECTOR Part No 93 7009 ON MOWER CENTER Part No 93 6679 ON MOWER LEFT SIDE Part No 93 7319 ...

Page 5: ...ll 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 remove the grass deflector from the mower because the grass deflector routes mate...

Page 6: ...he front wheels 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 5 Place rear guide bushings first left side then right onto lift arms then slide deck left into position Fig 4 6 Secure deck to rear lift arms with washers and hairpin cotters Fig 4 7 Attach rear link to attachment lift with washer and...

Page 7: ...eling page 6 and Front to Rear Blade Slope page 7 12 Raise attachment lift lever all the way to the latched position and adjust mower height of cut refer to page and transport height adjustment refer to page 5 Transport Height Adjustment Transport height is set at the factory and should not need adjustment however if the belt covers contact the footrest in the raised position adjustment is require...

Page 8: ... 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 Measure between the outside cutting edges and the flat surface Fig 8 If both measurements are not within 3 16 4 762mm an adjustment is required refer to steps 4 and 6 2 3 3 2 1 Figure 8 1 Blades side to side 2 Outside cutting edges 3 Measure here 4 ...

Page 9: ...r and hairpin cotter lower attachment lift and check side to side level Front to Rear Blade Slope Check the front to rear blade slope any time you install the mower Before checking the slope set air pressure in the front and rear tires to 12 psi 85 kPa If the front blade tip is not 0 1 8 0 3 2 mm lower than the rear blade tip adjust the blade slope using the following instructions 1 Park the machi...

Page 10: ...ge front to rear blade level Fig 12 Note To raise the front of the mower shorten the adjustable link by turning bolt clockwise 1 2 3 1227 Figure 12 1 Adjustable link 2 Jam nut 3 Bolt 8 When front to rear slope is correct tighten jam nut Recheck side to side mower level refer to Side to Side Mower Leveling page 6 9 Push the wire onto the spark plug s ...

Page 11: ...front adjustable link and remove from front lift arm Fig 13 1242 1 2 Figure 13 1 Adjustable link 2 Washer and hairpin cotter 5 Remove hairpin cotter and washer from rear link and remove from attachment lift Fig 14 6 Remove hairpin cotters and washers from rear lift arms Fig 14 7 Slide deck right off rear lift arms Fig 14 1 2 3 1234 Figure 14 1 Lift arm 2 Rear link 3 Hair pin cotter and washer 8 Tu...

Page 12: ... 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 Indica...

Page 13: ...ch Move lift lever foreword to lower attachment 1205 3 2 4 5 6 1 Figure 17 1 Lift lever 2 Button 3 Dial A Height 4 Indicator 5 High 6 Mounting position Attachment Power Lift The attachment power lift optional on some models Fig 18 is used to raise and lower attachments Raising Attachments 1 Turn key to the ON or RUN position Fig 18 2 Push the lift switch in the UP direction to raise the attachment...

Page 14: ...ill 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 ...

Page 15: ...e 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 grass is ever allowed to...

Page 16: ...aces paint X Tires check pressure X 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 ...

Page 17: ...page 9 2 Inspect the cutting edges Fig 20 If the edges are not sharp or have nicks remove the blade s and sharpen them refer to Sharpening the Blade s page 16 3 Inspect the blade s especially the curved area Fig 20 If you notice any damage wear or a slot forming in this area Fig 20 immediately install a new blade 151 1 2 3 Figure 20 1 Cutting edge 2 Curved area 3 Wear slot forming Removing the Bla...

Page 18: ...de 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 23 1 Blade 2 Balancer Installing the Blade s 1 Install the blade blade retainer washer and the blade bolt Fig 24 IMPORTANT The curved part of the blade must be pointing toward the inside of t...

Page 19: ...e gun 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 25 1225 Figure 25 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 26 3 Remove the be...

Page 20: ... minutes 5 Disengage the blade power take off PTO and turn the ignition key to OFF to stop the engine Wait for all moving parts to stop 6 Turn the water off remove hose coupling from the washout fitting Note If the mower is not clean after one washing let stand for 30 minutes Then repeat process again 7 Run mower again for one to three minutes to remove excess water 1 m 3437 2 3 Figure 27 1 Washou...

Page 21: ...battery 2 Wash the underside of the mower refer to Washing Underside of Mower page 18 3 Check the condition of the blade s refer to Cutting Blade page 15 4 Check the condition of the blade drive belt 5 Grease the mower deck refer to Greasing and Lubrication page 17 6 Check and tighten all bolts nuts and screws Repair or replace any part that is damaged or defective 7 Paint all scratched or bare me...

Page 22: ...ged 6 Blade drive belt off pulley 5 Contact Authorized Service Dealer 6 Install blade drive belt and check idler pulley and belt guides for correct position 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 T...

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