BigDog R Series - User Manual

Questions and Answers

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eric10Aug 17, 2025
What to do if BigDog R Series engine will not start?
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  David BrowningAug 17, 2025
  If your BigDog Lawn Mower engine won't start, starts hard, or fails to keep running, there are several possible causes. First, check if you have fuel or if the fuel line is plugged; if so, fill the tank or replace the line. Also, ensure the fuel valve is open. Incorrect fuel can also be a problem; drain the tank and replace it with the proper type. A dirty fuel filter can also be the culprit, so replace it. Finally, make sure the choke is on.
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Larry SantosAug 19, 2025
What to do if BigDog R Series Lawn Mower starting motor does not crank?
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  david42Aug 20, 2025
  If the starting motor on your BigDog Lawn Mower doesn't crank, there are a few things to check. First, make sure the steering control levers are in the park brake position and the switch is properly adjusted. Also, ensure the deck clutch switch is disengaged. A weak or dead battery can also prevent the motor from cranking, so recharge or replace it. Check the electrical connections for corrosion or looseness, and replace the 25 amp fuse if it's blown.
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Daniel Rodriguez MDAug 22, 2025
What to do if BigDog R Series Lawn Mower has abnormal vibration?
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  Kelly FletcherAug 22, 2025
  If your BigDog Lawn Mower is experiencing abnormal vibration, several issues could be the cause. Start by checking if the engine mounting bolts are loose and tighten them if necessary. Also, inspect the engine pulley, idler pulley, and blade pulley for looseness and tighten the appropriate pulley. Inspect the cutting blades; if any are bent or unbalanced, install new ones. Also, check if a blade mounting bolt is loose and tighten it. Finally, inspect the spindle bearing and replace or tighten it if it is worn or loose.
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Daniel FordAug 26, 2025
Why BigDog R Series has uneven cutting height?
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  rachel01Aug 26, 2025
  Uneven cutting height in your BigDog Lawn Mower can arise from several factors. Dull blades are a common cause, so sharpen them. Bent cutting blades can also lead to this issue, requiring replacement. Ensure that the tires are properly inflated, adjusting the air pressure to 8 - 10 psi (55 - 83 KPa). The underside of the deck might be dirty, so clean it.
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Yolanda VillegasAug 27, 2025
What to do if BigDog R Series Lawn Mower blades do not rotate?
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  Lisa MorrisAug 28, 2025
  If the blades on your BigDog Lawn Mower aren't rotating, it could be due to a few reasons. The deck drive belt might be worn, loose, or broken, in which case you should install a new one. Another possibility is that the deck drive belt is off the pulley; reinstall it and check for the cause.
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Michael GarciaAug 30, 2025
Why BigDog R Series Lawn Mower has loss of power?
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  Mr. Danny JamesAug 31, 2025
  A loss of power in your BigDog Lawn Mower can stem from several causes. Restrictions in the air cleaner can be a factor, so service the air cleaner. Make sure the tow valve is closed. Also, the traction drive belt might be worn, loose, or broken, requiring you to install a new one. Finally, the steering linkage may need adjustment.
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youngkennethSep 2, 2025
Why BigDog R Series overheating?
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  angela31Sep 2, 2025
  If your BigDog Lawn Mower is overheating, the air intake screen or cleaning fins may be clogged. Clean the screen and fins to resolve this issue.
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Caitlin SnyderSep 5, 2025
What to do if BigDog Lawn Mower circles or veers?
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  marciathorntonSep 5, 2025
  If your BigDog Lawn Mower circles or veers in one direction, several factors could be responsible. The steering linkage might need adjustment, so adjust the linkage. Also, check for loose steering linkage and tighten it if necessary. Finally, ensure the tires are properly inflated, adjusting the air pressure to 8 - 10 psi (55 - 83 KPa).
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Mary HowardSep 8, 2025
Why BigDog R Series jerky when starting?
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  Peter ClarkeSep 8, 2025
  If your BigDog Lawn Mower is jerky when starting or operates in one direction only, the steering control linkage might need adjustment. In this case, adjust the linkage. Also, check for loose steering linkage and tighten it.
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Timothy Phillips Jr.Sep 12, 2025
What to do if BigDog Lawn Mower creeps in neutral?
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  Lori BowersSep 12, 2025
  If your BigDog Lawn Mower creeps when the steering control levers are in neutral, the steering linkage likely needs adjustment. Adjust the linkage to resolve this issue.