background image

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 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 it’s 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.

PAGE  

1

7

Summary of Contents for MZ 42"

Page 1: ...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 2015 11 13 MZ 42MODELS...

Page 2: ...on Section 5 page 10 Troubleshooting and FAQ Section 6 pages 12 Controls Section 7 page 13 Moving Inoperable Mower Section 8 page14 Instrumentation Section 9 page 14 Mower Blade Maintenance Section 10...

Page 3: ...8 4222 00 42 MZ Deck Belt 041 0120 00 MZ Pump Belt 041 6400 00 Oil Filter Briggs Engine 540 CC Kohler Engine 063 8018 00 063 5004 00 Air Filter Briggs Engine 540 CC Kohler Engine 063 4026 00 063 5002...

Page 4: ...eplacement parts are available through your local Bad Boy Mower Dealer Remember to always provide the following information when ordering parts 1 Correct part number 2 Correct serial number All warran...

Page 5: ...nd behind before and while backing 2 9 Never direct discharged material toward anyone Avoid discharging material against a wall or obstruction as material may ricochet back toward the operator Stop th...

Page 6: ...es For example rocks water cliffs and roadways CHILDREN Tragic accidents can occur if the operator is not alert to the presence of children Children are often attracted to the machine and the mowing a...

Page 7: ...ERVICE 2 56 Never operate machine in a closed area where dangerous carbon monoxide fumes can collect 2 57 Keep all nuts and bolts tight to be sure the equipment is in safe working condition Never oper...

Page 8: ...ortant safety precautions Note the operator must be seated properly on the machine during these tests and the engine should have been previously allowed to warm to operating temperature 2 71 With the...

Page 9: ...recently engage the choke 3 6 Make sure nothing is under or around machine 3 7 Place key in ignition and turn 3 8 Once machine is started disengage the choke 3 9 Increase RPM by sliding the throttle...

Page 10: ...e will be stored for more than 30 days 5 4 Always secure machine properly when transporting machine 5 5 Do not load machine on trailer with blades engaged 5 6 Do not use ramps to load the machine 5 7...

Page 11: ...ormed Performed Performed Performed Performed Performed Performed Performed Performed Date Hours Date Hours Date Hours Date Hours Date Hours Date Hours Date Hours Date Hours Date Hours Date Hours Date...

Page 12: ...d and make sure air filter is clean a dirty filter makes it more difficult for the engine to draw air Check the integrity of the 25 amp main fuse also check for any bare wires and or bad connections 6...

Page 13: ...MZ Models use the Choke O Matic system In this case the choke and throttle controls are operated by the same lever With the lever pushed full forward this will apply the choke Pulling the lever back...

Page 14: ...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 sh...

Page 15: ...ick gloves when handling blades 10 7 ALWAYS check for blade damage if mower strikes rock branch or other objects that could potentially damage the blade REMEMBER NEVER CHECK BLADE WHILE ENGINE IS ON N...

Page 16: ...fic 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 using a 2 1 blade and want to...

Page 17: ...eason 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...

Page 18: ...Thesebypassleversserveasa neutralformovingthemowerwhiletheengineisnot running Pulltheleversoutandlockthemintoplaceto activatethebypass Whenadjustingthetrackingonthemower thelength of thepushrodscanbe...

Page 19: ...MZpumpbelttensioner Tighteningthetwo3 4 jamnutsontherightsidewill increasethebelt tension The tension should be adjusted so that there is between 50 to 55 lbs of tension on the belt This can be checke...

Page 20: ...er Have towels readily available in order to quickly remove any fuel leakage Always use new hose clamps and ensure the security of the new filter by lightly pulling on each hose Always perform mainten...

Page 21: ...d drill or wrench Then loosen the two on each side and the rear engine plate will swing down for easy access to the spark plug 2 Remove the ignition wire from the spark plug and using a 5 8 deep socke...

Page 22: ...an oil pan ready to capture old oil and properly dispose old oil 2 Clean area around oil filter Place a container under the oil filter to capture any oil and remove filter Wipe off mounting surface an...

Page 23: ...catedonthe filter Have towelsreadilyavailableinordertoquickly removeany fuelleakage Alwaysusenewhose clampsandensure thesecurityofthenewfilterby lightlypullingoneach hose Always perform maintenance ou...

Page 24: ...dusty environments Adhering to these practices will help prevent loss of power and premature engine failure 3 3 Changing the air cleaner 1 Unlock the air cleaner cover and remove to access the air cl...

Page 25: ...r to the plastic shrouds Then loosen the two carriage bolts on the side and the rear engine cover will swing down for easy access to the spark plugs 2 Remove the wire on the spark plug and use a 5 8 s...

Page 26: ...and connected Make sure that wire terminal ends have not been pushed out of the relay block PAGE 26 Thismowerisequippedwithtwoprotectivefuses a 25 ampmainfuse picturedtotheright anda10 amp clutch fuse...

Page 27: ...located underthecontrolpanel Ensurethattheyarecleanand connected Makesurethatwireterminalendshavenot been pushed out of the relay block If you are having issues starting your mower ensure the signal w...

Page 28: ...PAGE 28...

Page 29: ...ng this step as fingers can easily become caught between the belt and PAGE 29 Torquerearwheellugsto65 75ft lbs Re torque ateveryoil change and check at every mowing Thereisonegreasefittingoneachofthe...

Page 30: ...covers 4 Remove the belt on the left side blade pulley as facing the mower Roll the belt off of the pulley Exercise caution while performing this step as fingers can easily becomecaught between the be...

Page 31: ...t routing sticker 6 Place the pulley covers back onto the deck Leveling the Deck 1 Startonaflatlevel surface 2 Settheair pressureinallfourtires to 12 psi 3 Raisethedeckup andmeasureallfourcorners ofth...

Page 32: ...occur Ifthetensionistoo low thebeltcan jumpoff orsliponthepulleys Thisresultsinreduced cut qualityandearlybeltfailure Spring tension adjustments canbemadebyslidingtheboltshownabove forward or backwar...

Page 33: ...des itmaybeeasiertousea pieceofwoodto keepthebladefromturningso thattheboltcanbeloosened Use a 15 16 socket and impact Drill or a wrench and an extension to gain more leverage You might need to put a...

Page 34: ...PARTS SECTION PAGE 34...

Page 35: ...PAGE 35...

Page 36: ...PAGE 36...

Page 37: ...PAGE 37...

Page 38: ...PAGE 38...

Page 39: ...PAGE 39...

Page 40: ...PAGE 40...

Page 41: ...PAGE 41...

Page 42: ...PAGE 42...

Page 43: ...PAGE 43...

Page 44: ...PAGE 44...

Page 45: ...PAGE 45...

Page 46: ...PAGE 46...

Page 47: ...PAGE 47...

Page 48: ...PAGE 48...

Page 49: ...PAGE 49...

Page 50: ...PAGE 50...

Page 51: ...PAGE 51...

Page 52: ...__________________________________________________________ _________________________________________________________________________ ___________________________________________________________________...

Page 53: ...__________________________________________________________ _________________________________________________________________________ ___________________________________________________________________...

Page 54: ...XPRESS WARRANTY ANY WARRANTY THAT MAY BE IMPLIED FROM THIS PURCHASE INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY LIMITED TO THE DURATION OF THIS WARRANTY AND TO THE EXTENT...

Page 55: ...STRATION 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 records Se...

Page 56: ...MZ MODEL For additional information please see us at www badboymowers com Bad Boy Inc 102 Industrial Drive Batesville Arkansas 72501...

Reviews: