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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. 

•Don’t cut your grass too short, particular for cool season grasses. Higher heights usually provide for a deeper root  

 system, looks better, and is less likely to have weeds invading, particularly crabgrass. 

•Don’t remove any more than one third of the grass leaf at any one cutting. If circumstances arise that a lawn gets too tall  

 and you just have to lop off a bunch to get caught up, bite the bullet and break it down into several mowings to get caught  

 up with 3 or so days between cuttings. 

NEVER SCALP YOUR LAWN

. Scalping severely damages the root system to such a degree that it may die. 

•Avoid mowing when the grass is wet or when it’s dark 

•Avoid throwing grass clippings into the street and driveway where they can be washed into the sewer system. After  

 mowing, clean up driveway and walkways. 

•When mowing remove only a third with each cutting (except for the first mowing of the season when it’s ok to remove  

 more). You can safely leave clippings that will quickly decompose and add nutrients back into the soil. Contrary  

 to popular opinion, grass clippings do not add to thatch buildup. Grass blades are made up of about 75% water. 

•Mow your lawn in a different direction with each mowing, especially with lawns of shorter grass types. Altering the  

 direction ensures a more even cut since grass blades will grow more erect and less likely to develop into a set pattern. 

•Keep your mower’s blade sharp, which means having it sharpened several times during the mowing season. Keep  

 several blades around so you’ll always have a sharp one on hand. Sharp blades cut the grass cleanly and help  

 mulch clippings into small pieces which break down quickly. 

•Don’t forget to change your mower’s oil at least once during the mowing season. For brand new mowers, change the oil  

 after about 5 hours of operation during the initial break-in period. 

•At the end of the mowing season use a fuel stabilizer in the remaining gasoline 

•In the spring, don’t use that old gas unless you properly used a fuel stabilizer, it can cause a number of problems. Better  

 to use fresh gasoline to begin the new mowing season. 

Leaf blade A

 demonstrates what a leaf blade should look like 

 after mowing with a sharp blade. 

Leaf blade B

 demonstrates a leaf blade that was injured by a 

 dull mower blade. 

Leaf blade C

 was cut by the mower but indicates that the 

 mower blade is not sharp enough. The shredded white tissue 

 protruding from the leaf blades C and D is the vascular tissue 

 of the plant. 

Leaf blade D

 has been mown for quite some time with a dull mower blade. 

TO BAG OR TO MULCH?

 

Grass clippings do not contribute to thatch buildup or increase the chances of disease. If you mow your lawn at the right 

height, without removing any more than 1/3 of its total height, clippings will quickly breakdown without a trace. These 

clippings contribute additional nitrogen and other nutrients to the soil and supply it with additional organic materials. 

Clippings from a 1000 sq. ft. lawn can add as much as 1 - 2 pounds of nitrogen back into the soil. If you have a compost 

pile, then you may want to bag your clippings occasionally to add much needed green-matter to the compost pile. Make 

sure it is mixed thoroughly with brown matter to avoid a strong ammonia odor. 

DO NOT COMPOST CLIPPINGS

 after 

applying any weed control or weed-feed type product. Before adding clippings to the compost pile wait at least 3 mowings 

after these products have been applied. 

 

 

Fig. 3 

Summary of Contents for ZT AVENGER BAZ54KT740

Page 1: ...ZERO TURN MOWER OWNER S OPERATOR SERVICE MANUAL For additional information please see us at www badboymowers com 2020 10 12 ZT AVENGER MODELS...

Page 2: ...ansportation Section 5 Page 10 Troubleshooting and FAQ Section 6 Page 11 Controls Section 7 Page 12 Moving In operable Mower Section 8 Page 13 Mower Blade Maintenance Section 9 Page 13 Equipment Lubri...

Page 3: ...Fusion 038 6060 00 Gator Blade 038 6003 00 Wave Blade 038 6016 00 ZT Hydraulic Filter 063 1050 00 54 ZT Deck Belt 041 1560 00 60 ZT Deck Belt 041 1650 00 ZT Pump Belt 041 6400 00 Fuel Filter 063 5001...

Page 4: ...ordering parts 1 Part number 2 Serial number All warranty repair and service must be handled through your authorized Bad Boy dealer To locate the nearest dealer go to the website listed above and cli...

Page 5: ...against a wall or obstruction as material may ricochet back toward the operator Stop the blades when crossing gravel surfaces 2 10 Never operate the mower without the discharge chute grass catcher or...

Page 6: ...changes in speed or direction could cause the mower to roll over 2 32 Use extra care while operating the mower with grass catchers or other attachments they can affect the stability of the mower Do n...

Page 7: ...is is not possible then refuel such equipment with a portable container rather than from a gasoline dispenser nozzle 2 55 Never fill gasoline containers inside a vehicle or on a truck or trailer bed w...

Page 8: ...tart the mower with the PTO switch in the OFF position The engine should not start Continue test 2 76 On a level surface disengage the parking brake and place lever arms to their outward position Atte...

Page 9: ...ms will lock into place and must be in this position to start the mower 3 5 Put PTO switch in the OFF position 3 6 If your mower has been equipped with a ROPS Roll Over Protection Structure then you m...

Page 10: ...st Check air and fuel filter more often in dusty conditions DealerGet maintenance performed at a registered dealership SECTION 5 MOWER STORAGE TRANSPORTATION 5 1 Keep the mower from collecting debris...

Page 11: ...the blades won t engage A Make sure the safety switch is plugged in on the bottom of the seat Check the underside of the blade power switch to ensure the plug is secure at the switch Also check PTO fu...

Page 12: ...run position When the choke is pulled out it is in the on start position Do not operate the mower in the on start position 7 4 Control Levers These levers control the mower s speed direction and neutr...

Page 13: ...will also require more power from the engine 9 2 NEVER attempt to straighten a bent blade by heating NEVER attempt to weld a cracked blade The blades can break and cause serious injury or death 9 3 NE...

Page 14: ...l designed for a more specific purpose If you re experiencing less than desired cutting or discharging performance with a 3 1 blade you may want to check into using a 2 1 blade Conversely if you re us...

Page 15: ...ng season Keep several blades around so you ll always have a sharp one on hand Sharp blades cut the grass cleanly and help mulch clippings into small pieces which break down quickly Don t forget to ch...

Page 16: ...enuine Hydro Gear parts could damage the product or cause it to not operate properly or fail prematurely 2 Repairs or installation by personnel other than as authorized by Hydro Gear must be pre autho...

Page 17: ...e filter gasket contacts the filter base surface 5 Re install the filter guard with three 1 4 screws Torque screws to 65 in lbs 7 3 Nm each 6 Repeat steps 1 5 on the opposite side transaxle drive 7 Dr...

Page 18: ...using the cotter pin to activate the bypass TRACKING ADJUSTMENT When adjusting the tracking on the mower the length of the pushrods can be changed by screwing the swivel joint in or out on the ends o...

Page 19: ...e will increase the belt tension The tension should be adjusted so that there is between 60 to 65 lbs of tension on the belt and recheck belt tension after half an hour This can be checked with a belt...

Page 20: ...stall oil drain cap and tighten 3 Place new filter in shallow pan with open end up Fill with new oil until oil reaches the bottom of the threads Allow two minutes for oil to be absorbed by filter mate...

Page 21: ...e vicinity of any maintenance activities CHANGING YOUR FUEL FILTER 1 Locate your fuel filter and note the direction of fuel flow 2 Clamp the fuel line on both sides of the fuel filter using fuel line...

Page 22: ...the air cleaner s effectiveness Reference section 4 for the recommended replacement interval of the air cleaner Adhering to these practices will help prevent loss of power and premature engine failure...

Page 23: ...use an appropriate socket to remove the spark plug 3 Check the gap of the spark plug by using a feeler gauge and set gap to the recommend value in the engine s service manual 4 If the spark plug is w...

Page 24: ...tes a problem within the electrical system or an electrical component Never replace a fuse with one of a higher amperage rating or bypass a fuse in any way Doing so creates a significant fire hazard a...

Page 25: ...y voltage should be 12 volts dc minimum with engine off If you are having issues starting your mower ensure the signal wire is connected to your starter solenoid See Fig 21 and Fig 22 for typical layo...

Page 26: ...PAGE 26 ELECTRICAL SYSTEM CONTINUED WIRING DIAGRAM For a larger version of the below diagram please visit badboymowers com and click the parts manuals section Fig 23...

Page 27: ...l lugs to 65 75ft lbs Re torque at every oil change and before each use SECTION 16 GREASE LOCATIONS The pump belt tensioner is located under the engine and has a grease fitting at its pivot Grease at...

Page 28: ...ey 2 Raise the deck to its highest position If needed loosen the deck belt tensioner to its weakest installed position 3 Take off both pulley covers and route the belt by following the belt route deca...

Page 29: ...cutting height When tensioning a new belt recheck belt tension after 1 2 hour of cutting time Use a belt tension gauge to ensure the proper tension Your dealer or service center will have a belt tens...

Page 30: ...tely 3 1 2 off the ground to achieve the proper 1 4 pitch down in the front it may be necessary to use some 1 4 spacers under the rear of the deck as shown in Fig 39 4 Using a pair of 9 16 wrenches lo...

Page 31: ...though component damage potential may be increased The bolt has right handed threads Re torque the blade bolts to 90 110 ft lbs upon re installation The blade spindles contain a sealed bearing inside...

Page 32: ...e Hours Performed Date Hours Performed Date Hours Performed Date Hours Performed Date Hours Performed Date Hours Performed Date Hours Performed Date Hours Performed Date Hours Performed Date Hours Per...

Page 33: ...____________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________...

Page 34: ...WARRANTY LIMITATION A THERE IS NO OTHER EXPRESS WARRANTY ANY WARRANTY THAT MAY BE IMPLIED FROM THIS PURCHASE INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY LIMITED TO THE DUR...

Page 35: ...ANTY REGISTRATION Ensure selling dealership has registered mower within 30 days of purchase to validate warranty Please record your serial number date of purchase and dealership information for your r...

Page 36: ...www badboymowers com Bad Boy Inc 102 Industrial Drive Batesville Arkansas 72501...

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