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Bad Boy MZ Series Owner's Manual
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Bad Boy MZ Series Owner's Manual

Mz series zero-turn mower
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Download this manual See also: Owner's, Service & Parts Manual
MZ
MODEL
ZERO-TURN MOWER
OWNER'S, SERVICE & PARTS MANUAL
For additional information, please see us at
www.badboymowers.com
Bad Boy, Inc.
102 Industrial Drive
Batesville, Arkansas 72501
(870) 698-0090
©2014 12-1

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Summary of Contents for Bad Boy MZ Series

  • Page 1 MODEL ZERO-TURN MOWER OWNER’S, SERVICE & PARTS MANUAL For additional information, please see us at www.badboymowers.com Bad Boy, Inc. 102 Industrial Drive Batesville, Arkansas 72501 (870) 698-0090 ©2014 12-1...
  • Page 2 TABLE OF CONTENTS Basic Information ................... Section 1 (pages 4–5) Bad Boy Safety Guidelines ................Section 2 (pages 5–6) Operation ....................... Section 3 (pages 6–7) Maintenance ......................Section 4 (page 7) Storage and Transportation ................. Section 5 (page 8) Troubleshooting and FAQ ................Section 6 (pages 8–9) Controls .......................
  • Page 3 This manual applies to the following equipment: Bad Boy MZ Series MZ 42˝ 540cc Briggs MZ 42˝ 726cc Kawasaki COMMONLY USED ITEMS AND PART NUMBERS 42˝ MZ Blade Hi-Lift Fusion Gator Blade 038-4221-00 038-4222-00 42˝ MZ Deck Belt 041-0120-00 MZ Pump Belt...

  • Page 4: Warranty Registration

    SECTION 1: BASIC INFORMATION Congratulations on the purchase of your new Bad Boy Mower! The purpose of this manual is to assist operators in maintaining and operating their machine. The information and instructions in this manual can help you attain years of performance from your new Bad Boy. Also, check out our website to learn more about the Bad Boy family.

  • Page 5: General Operation

    SECTION 2: MOWER SAFETY GUIDELINES Never allow untrained people to operate this machine. It is the owner’s responsibility to get training and see to it that anyone who has permission to use your machine receives the proper training. Do not mow around people. The factory discharge chute is designed to deflect debris downward, but it could be possible for debris to be thrown in a way that can cause damage to people or property.

  • Page 6: Slope Operation

    SLOPE OPERATION Slopes are a major factor related to loss of control and tip over accidents, which can result in severe injury or death. Operation on all slopes requires extra caution. If you cannot back up the slope, or you feel uneasy on it, do not mow it. 2.22 Mow up and down slopes, not across.
  • Page 7 SERVICE: SAFE HANDLING OF GASOLINE To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. 2.45 Extinguish all cigarettes, cigars, pipes, and all other sources of ignition. 2.46 Use only an approved gasoline container. 2.47 Never remove gas cap or add fuel with the engine running.

  • Page 8: Safety Interlock System

    2.69 Always maintain the correct tire pressure. Do not inflate the tires above the recommended pressure. Never weld or heat a wheel and tire assembly. The heat can cause an increase in air pressure resulting in a tire explosion. Welding can structurally weaken or deform the wheel.
  • Page 9 SECTION 3: MOWER OPERATION Never operate the machine with faulty equipment. Always be alert of sudden changes in landscape, as the mower will react differently on slopes or embankments than it will on flat surfaces. Never operate the mower with the discharge chute open. Do not cross terrain, other than grass, with blades turning. This could cause damage to property or bystanders.
  • Page 10 SECTION 4: MOWER MAINTENANCE **Check each and provide maintenance when needed. DAILY Check Engine Oil 4.2 Check Engine Air Filter 4.3 Tire Pressure 4.4 Inspect Blades Within FIRST five hours of usage, change engine oil and filter EVERY 30 HOURS OF USAGE 4.5 Grease Machine EVERY 50 HOURS OF USAGE 4.6 Change Engine Oil and Filters...
  • Page 11 SECTION 6: TROUBLESHOOTING Q: How do I prevent an uneven cutting pattern and increase the quality of cut? A: Check tire pressure, check blade sharpness (replace blades or sharpen at least once per year or when needed), make sure blades are tightened properly, check spring and belt tension, check the underside of the deck to ensure the mower deck is free of grass build-up and debris, make sure your machine is at full throttle, and vary your mowing pattern each time you cut your grass.
  • Page 12 SECTION 7: CONTROLS Ignition Switch—Bad Boy Mowers have a three position ignition switch: off, run, and start. With key inserted, rotate it clockwise to START position and release key when engine starts, and switch will automatically return to he RUN position. Throttle Control—A cable is connected to the engine throttle for controlling engine speed.
  • Page 13 Return the arms to the “forward position for normal operation. Your Bad Boy Mower Weighs: MZ SERIES: 585—602 lbs *** Weights fluctuate with the addition of accessories. 8.5 As you can see by the weights of the machines, you shouldn’t ever try to push or pull a Bad Boy Mower by hand.
  • Page 14 SECTION 10: MOWER BLADE MAINTENANCE 10.1 Check mower blades after each use. This is essential for maintaining well-groomed turf. Keep the blades sharp. If a dull blade is used for cutting, the grass will tear rather than cut. This could damage the grass leaving a brown frayed top on the grass within a few hours. A dull blade will also require more power from the engine.
  • Page 15 HOW TO CHOOSE THE RIGHT BLADE Essentially there are only TWO basic styles of mowing blades used or approved for use on our current products: 1) The standard style of mowing blade is essentially designed for cutting grass and effectively discharging the clippings out from the deck to fall onto the lawn or to be captured in a grass collection system.

  • Page 16: Mowing Tips

    MOWING TIPS: • Mow header strips at the ends of the lawn and around flower beds first. Make them wide enough that you can turn the mower around in the already mown section. Then mow back and forth between these header strips overlapping each lap by about 1/8 the width of the mower’s deck.
  • Page 17 SERVICE SECTION SECTION 1: HYDROSTATIC SYSTEM The hydrostatic system on MZ models is a sealed lifetime transaxle system, so no maintenance is required. Under the rear of the mower, you will find the two levers shown in the images. These bypass levers serve as a neutral for moving the mower without the engine running.
  • Page 18 SECTION 2: DRIVE BELT Shown to the right is the MZ pump belt tensioner. Tightening the two 3/4˝ jam nuts on the right side will increase the belt tension. Factory setting is about .030˝ (about the thickness of a credit card) between coils as shown. PAGE 18...
  • Page 19 SECTION 3: ENGINE Some models have a drain hose installed on the engine, for easier oil changes. All gas engines used by Bad Boy use 10w30. Bad Boy recommends that the oil and filter be changed every 50 hours of usage. The fuel filter is located in the fuel line about 12˝...
  • Page 20 SECTION 4: ELECTRICAL SYSTEM The 25 amp main fuse is located just behind the battery connected to the starter solenoid. On most models, the red wire coming out of the engine is the charging wire from the alternator. Check for 13.6 - 14.2 volts dc at this wire with engine at full throttle.
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  • Page 22 SECTION 5: FRAME Torque rear wheel lugs to 65-75 ft. lbs. Retorque at every oil change. (All models) There is one grease fitting on each of the actuator bar pillow blocks (Total of 4). Grease twice a season. The pump belt tensioner is located under the engine and has a grease fitting at its pivot point.
  • Page 23 If deck adjustments are necessary, the deck hanger bolts have adjustable slots. These adjusters affect the overall height of the deck and the level from left to right. The deck spring tension is critical. If the tension is too much, it will cause the spring to break.

  • Page 24: Parts Section

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  • Page 43 Bad Boy, Inc. 102 Industrial Drive Batesville, AR 72501 1.866.622.3269 www.badboymowers.com Technical Support: James Russell ..............james.russell@badboymowers.com Warranty: Jack Vaughn ................jack.vaughn@badboymowers.com Parts: Tim Tosh ................... tim.tosh@badboymowers.com Robert Patterson ..............robert.patterson@badboymowers.com Cut and Mail or Fill Out Online under ‘Owners’ at www.badboymowers.com WARRANTY REGISTRATION Full Name ____________________________________________________________ Address _____________________________________________________________...
  • Page 44 For additional information, please see us at MODEL www.badboymowers.com Bad Boy, Inc. 102 Industrial Drive Batesville, Arkansas 72501 (870) 698-0090 Cut and Mail or Fill Out Online under ‘Owners’ at www.badboymowers.com Place Stamp Here POST OFFICE WILL NOT DELIVER WITHOUT POSTAGE BAD BOY MOWERS 102 Industrial Drive Batesville, AR 72501...

This manual is also suitable for:

Mz 42"