Bad Boy Mowers DIESEL 1500cc Guide

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
©2017 12-6
DIESEL 1500cc MODEL

PAGE 2
TABLEOFCONTENTS
Basic Information .....................................................................................................Section 1 Page 4
Bad Boy Safety Guidelines.......................................................................................Section 2 Page 5
Operation.................................................................................................................Section 3 Page 9
Maintenance.............................................................................................................Section 4 Page 10
Storage and Transportation......................................................................................Section 5 Page 10
Troubleshooting and FAQ........................................................................................Section 6 Page 12
Controls....................................................................................................................Section 7 Page 13
Moving In-operable Mower.......................................................................................Section 8 Page 14
Instrumentation........................................................................................................Section 9 Page 14
Mower Blade Maintenance.......................................................................................Section 10 Page 15
Greasing Bearings....................................................................................................Section 11 Page 15
How To Choose the Right Blade.....................................................................................................Page 16
Mowing Tips....................................................................................................................................Page 17
Service Section...............................................................................................................................Page 18
Parts Section...................................................................................................................................Page 32
Limited Warranty.............................................................................................................................Page 54

PAGE 3
THISMANUALAPPLIESTOTHEFOLLOWINGEQUIPMENT:
BADBOYDIESELSERIES
Diesel 6100 61” 1500CC 4-Cylinder Diesel (Caterpillar and Perkins)
Diesel 7200 72” 1500CC 4-Cylinder Diesel (Caterpillar and Perkins)
COMMONLYUSEDITEMSANDPARTNUMBERS
61” Blade
Hi-Lift Fusion
Gator Blade
Wave Blade
038-6080-00
038-6081-00
038-6090-00
72” Blade
Hi-Lift Fusion
038-7230-00
Gator Blade
038-5400-00
Wave Blade
038-7215-00
Deck Belt
61”
041-0236-00
72”
041-2525-00
Pump Belt
61”
041-5048-00
72”
041-8411-00
Oil Filter
Caterpillar
063-2010-00
Perkins
063-2010-01
Air Filter
Inner Filter
063-2060-00
Outer Filter
063-2050-00
Fuel Filter
Caterpillar
063-2011-00
Perkins
063-2011-01
Hydraulic Filter
063-8014-00
Motor Oil
15W-40 Motor Oil – ReferenceOwner’s Manumal.
Hydraulic Oil
20W-50 Motor Oil-Bad Boy Hydrostatic Oil Recommended (Approximately 2.5 Quarts/Transaxle)
085-6000-00

PAGE 4
SECTION1:BASICINFORMATION
Congratulations on the purchase of your new Bad Boy Mower! The purpose of this manual is to assist
operators in maintaining and operating theirmachine. The informationand instructions in this manual can help
you attain yearsof performance from your new Bad Boy. Also, check out our website to learn moreaboutthe
Bad Boy family.
1.1 All Bad Boy engines use 15W-40 engine oil. Referto engine’s service manual
1.2 All Bad Boy hydraulic systems use 20W-50 engine oil (Conventional or Synthetic). Bad Boy Hydrostatic
oil is recommended.
1.3 All Bad Boy Mowers use hi-temp multi-purpose grease. NLGI No.2 for the grease fittings.
1.4 1500CC Diesel models have 12 psi in both front and rear tires.
1.5 1500CC Diesel engines hold approximately three (3) quarts of motor oil. Be careful not to over fill
engine oil. Refer to engine’s service manual.
WARRANTYREGISTRATION
The Warranty Registration form must be completed within 30 days to validate yourwarranty. As the new
equipment owner, you are expected to see that the form is completed and forwarded to Bad Boy Inc. at time of
delivery. Warranty is nontransferable. Warranty registration should be completed by the selling
dealership using the on-line registration site.
MODEL/SERIALNUMBER
Your 1500CC Diesel model serial numbers are found on the SIN plate underneath the seat. These numbers
can assist you in the ordering of newparts when replacementsbecome necessary.
PARTS/SERVICE
Only Bad Boy replacementparts are to be used on your mower. Replacement parts are available through your
local Bad Boy Mowers Dealer. Rememberto alwaysprovide the following information when ordering parts:
1. Correct part number
2. Correct serial number
All warranty repair and service must be handled through yourauthorized BadBoy Mowers Dealer. To locate
the nearest dealer, go to our website and click on Locate a Dealer.

PAGE 5
SECTION2:MOWERSAFETYGUIDELINES
Never allowuntrained people to operate this machine. It is theowner’s responsibility to get training and see to it
that anyone whohas permission to use your machine receives the proper training. Do not mowaround people.
The factory discharge chute is designed to deflect debris downward, but it could be possible for debris to be
thrown in a waythat can cause damage topeopleor property. Seek additionaltraining when possible to learn
more about safetytechniques and practices. This cutting machine is capable of amputating hands and feet
and throwing objects. Failure to observe the following safety instructions could result in serious injury
or death.
GENERALOPERATION
2.1 Read, understand, and follow all instructions on the machine and in the manual before starting.
2.2 Do not put handsor feet near rotating parts or under the machine. Keepclear of the discharge opening
at all times.
2.3 Always remain seated while operating the machine. If the machine is equipped with Roll Over
Protection (ROPs), make sure ROPs are in the uprightand locked positionand always buckle your
seat belt.
2.4 Only allow responsible adults who arefamiliar with the instructions to operate thismachine.
2.5 Clear the area of objects such as rocks, wire, toys etc., which could be thrown by the blades
2.6 Always maintain a safe distance from people and pets just prior to, and during, operation. Stop the
machine if anyone enters the area.
2.7 Never carry passengers.
2.8 Do not mow in reverse unless absolutelynecessary. Always look down and behind before and while
backing.
2.9 Never direct discharged material towardanyone. Avoid discharging materialagainst a wall or
obstruction as material may ricochet back toward the operator. Stop the blades when crossing gravel
surfaces.
2.10 Never operate the machine without the discharge chute, grass catcher, or other safety devices
correctly in place and functioning properly.
2.11 Slow down before turning.
2.12 Alwaysdisengage blades, place steering controls in neutral, engage parking brake, and remove
ignition key when leaving operators seat. Never leave a running machineunattended.
2.13 Disengage bladeswhen not mowing. Shut offengineand wait for all partsto come to a complete stop
before cleaning the machine, inspecting the machine for damage, removing the grass catcher, or
unclogging the discharge guard.
2.14 Always operate machine in daylight or with adequate working lights.
2.15 Do not operate the machine while under the influence of alcohol ordrugs.
2.16 Watch for traffic when operating near or crossing roadways.
2.17 Always wear eye protection when operating or servicing the machine.
2.18 Always wear ear protection, such as earplugs, while mowing.
2.19 Use extra care when loading or unloading the machineinto a trailer or truck.
2.20 Be alert of surroundings. Watch for rocks, stumps, mounds, depressions, and low hanging limbs or
objectsthat could be potentially hazardouswhile mowing.
2.21 Data indicatesthat operators60 yearsof age and above are involved in a large percentage of riding
mower related injuries. These operators should periodically evaluate their ability tooperate the riding
mower safely enough to protect themselves and others from serious injury.

PAGE 6
SLOPEOPERATION
Slopes area major factor relatedto lossof control andtip overaccidents, which canresult in severe injury or
death. Operation on all slopes requires extra caution. Ifyou cannot back up the slope, oryou feel uneasy on it,
do not mow it.
2.22 Mow up and down slopes, not across.
2.23 Watch forholes, ruts,bumps, rocks, or other hidden objects that tallgrass can obscure. Uneven terrain
could overturn the machine.
2.24 Choose a low ground speed when operating the machine on a slope.
2.25 Do not mow on wet grass, the tires may lose traction.
2.26 Do not attempt to coastdown a slope in the neutralposition.
2.27 Avoid starting, stopping, or turning on a slope. If the tires lose traction, disengage the blades and
proceed slowly,straight down the slope.
2.28 Keep all movementon slopes slow and gradual. Sudden changesin speed or direction could cause the
machine to roll over.
2.29 Use extra care while operating machine with grass catchers or other attachments: they can affect the
stability of the machine. Do not use on steep slopes.
2.30 Do not try to stabilizethe machine by putting your foot on the ground.
2.31 Do not mow neardrop offs, ditches or embankments. The machine could suddenly roll over if a wheel
goes over the edge or the edge caves in.
2.32 Be aware of what is located at the bottom of slopes. For example: rocks water, cliffs, and roadways.
CHILDREN
Tragic accidents can occur if the operator isnot alert to the presence of children. Children are often attracted to
the machine and the mowing activity. NEVER assume that children will remain where you last saw them.
2.33 Keep children out of the mowing area and in thewatchful care of a responsible adult other than the
operator.
2.34 Maintain Alertness and turn machine off if a child enters the area.
2.35 Before and while backing, look behind and down for small children.
2.36 Never carry children, even with blades shut off. They may fall off and be seriously injured or interfere
with safemachine operation. Children who have beengiven rides in the past may suddenly appear in
the mowing area for anotherride and be run over orbacked over by the machine.
2.37 Never allow children tooperate the machine.
2.38 Never leave the key in the ignition, especially around children.
2.39 Use extreme care whenapproaching blind corners, shrubs, trees, orother objects that mayblock your
view of a child

PAGE 7
TOWING
1500CC Diesel:
Max pulling weight: 650lbs.
Max at 5°: 570lbs.
Max tongue weight: 61” = 110lbs.; 72” = 115lbs.
2.40 Tow onlywith a machine that has a hitch specifically designed fortowing. Do not attach towed
equipment except at the hitch point.
2.41 Followthe manufacturer’s recommendation forweight limits for towed equipment and towingon slopes.
2.42 Never allow children orothers in or on towed equipment.
2.43 On slopes, the weight of thetowed equipment may cause loss of traction and loss ofcontrol.
2.44 Travelslowlyand allowextra distance to stop.
SERVICE
SAFEHANDLINGOFDIESEL
To avoidpersonalinjury or propertydamage,use extreme care in handling diesel.
2.45 Extinguish all cigarettes, cigars, pipes, and all other sources of ignition.
2.46 Use onlyan approveddiesel container.
2.47 Never remove fuel cap or add fuel with the engine running.
2.48 Allow engine to cool beforerefueling.
2.49 Never fuel the machine indoors.
2.50 Do not store machine near open flameor source of ignition, such asa waterheateror furnace.
2.51 Remove gas powered equipment from the truckor trailer and refuel it on the ground. If this is not
possible, then refuel such equipment with a portablecontainer, rather than from a gasolinedispenser
nozzle.
2.52 Never fill diesel containers inside a vehicle oron a truck ortrailerbed with a plastic liner. Always place
containers on the ground away from your vehicle before filling.
2.53 Keep the nozzle in contact with the rim of the fuel tank or container opening at all timesuntil the fueling
is complete. Do not use a nozzle lock-open device.
2.54 If fuel is spilled on clothing, change clothing immediately.
2.55 Never overfillfuel tank. Replace gas cap and tighten securely. Tank is full when level reaches
bottom of fill tube.
GENERALSERVICE
2.56 Never operate machine in a closed area where dangerous carbon monoxide fumes can collect.
2.57 Keep allnuts and bolts tight to be sure the equipment is in safe working condition.Never operatea
poorly maintained machine.
2.58 Do not touch hot areas of the machine.
2.59 Never interfere with the intended function ofa safetydevice or reduce the protection provided by a
safety device. Check their proper operation regularly.

PAGE 8
2.60 Keep the entiremachine freeof grass, leaves, or other debris build up. Clean up oil or fuelspillage and remove
any fuel soaked debris. Failure to do so can affect the safety and functionality of the machine, as well as
increase the danger of a fire due to contact with the hot surfaces of the machine.
2.61 Allow machineto cool before storing.
2.62 If you strike something with the mower, turnthe mower andblades off, engage the parkingbrake, and inspect
the machine for damage. Repair, if necessary, before resuming.
2.63 Never make any adjustmentsor repairs with the engine running.
2.64 Check grasscatcher components and the discharge guard frequently and replace withmanufacturer’s
recommended parts, when necessary.
2.65 Mower blades are sharp. Wrap the blade or wear gloves before servicing them.
2.66 Check parking brake operation frequently. Adjust and service as required.
2.67 Maintain or replace safety and instructionlabels, as necessary.
2.68 Do not attempt to mount a tire without the proper equipment and experience to perform the job.
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.
2.70 Park machine on level ground. Never allow untrained personnel to service machine. Understand service
procedure beforedoing work.
2.71 Mower deck, frame, and engine compartment should remainfree of debris to prevent premature parts failuresor
fire hazards.
SAFETYINTERLOCKSYSTEM
Your Bad Boymower is equipped with asafety interlock system. This system isdesigned to prevent serious injury or
death to the operator and other people or property damage.The system consists of an operator presenceswitch in the
seat, the parking brake, drive lever neutral position, the mower blade engagement switch, and the ignition switch. These
interlocks are vitally important and must be tested frequently. Following are instructions to test these very important 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.
2.72 With the parking brake engaged, bring lever arms to their inward position Attempt to startthe machine with the
blade actuatorin off position.The engine should not start.
2.73 On a level surface, disengagethe parking brake and place lever arms to their outward position. Then, attempt to
start the machine with the blade actuator in off position. The engine should not start.
2.74 Engage parkingbrake and leave lever arms inoutward position. Put blade actuatorin the on position, then
attempt to startthe machine. The engine shouldnot start.
2.75 Next, start the engine as stated in the Mower Operation Section. Disengage parking brake and, Very Slowly,
begin to rise from the seat. The engine shouldstop.
If any of these tests fail to produce the results indicated andthe problem cannot be identified, contactyour Bad Boy
Mower dealer or thesupport contacts in the rear of this manual.
ROLLOVERPROTECTIONSTRUCTURES(ROPS)
This machine is not equippedwith ROPS from the factory. IfROPS are addedas an option, it is vital that the rules below
are adhered to. ROPS, whenused correctly, dramatically decrease the fatality rate in roll-over instances.
2.76 Periodically ensure the bolts that attach the ROPS to the machine are securely fastened.
2.77 Always operate the machine with the ROPS secured in the upright position.
2.78 If the surrounding environment(e.g. low-lying limbs, signage, etc.) makes it impossible to mow with the ROPS
upright, lower the ROPSat the hinge point,mow the area, then immediatelysecure the ROPS upright.
2.79 Upright ROPS are taller than then operators head. Be aware of this andyour surrounding environment, as
referenced above. The mowerand operator may clear low lying items, but the ROPS may not.
2.80 Always wear the provided seatbelt when ROPS are utilized.Failure to use theseat belt severely handicaps the
safety benefits of the ROPS.
2.81 In the event ofa roll-over, replace the ROPS before resuming use of the machine.

PAGE 9
SECTION3:MOWEROPERATION
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.
3.1 Place parking brake in upposition.
3.2 Drive arms must be in the “open”position. While sitting on the machine, each arm is positioned away
from theoperator, to the right and left. Drive arms will lock into place and must be in this positionto
start machine.
3.3 Put PTO switch in the OFF position.
3.4 If your machine has been equipped with a ROPS (RollOver Protection System) then you mustfasten
seatbelt.
3.5 If machine has not been started recently, engage the choke.
3.6 Make surenothing 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 to fastposition, toward the rabbit.
3.10 Ownersmust become familiar with the controls beforeoperating a zero-turn radius vehicle.
3.11 Start slowly and build your skilllevel. Have ample practice beforeusing the machine at full
capabilities.
3.12 Be comfortablewith machine before engaging blades.Know what each component controls
before using machine.
3.13 Your mower will perform differently on an incline /decline. Be cautious,slow down, and do not make
any sudden jerking movements with control arms. Themachine could lose traction on a decline or tip
backwards on an incline.
3.14 Once you becomecomfortable with yourBad Boy Moweryou willnotice your overall mowing time will
decrease.
Avoid operating your mower on side hills of over 5 degrees,
inclines of over 10 degrees,
and declines of over 15 degrees.

PAGE 10
SECTION4:MOWERMAINTENANCE
Maintenance
Interval
Daily
Every 50
Hours or
Annually*
First
75
hours
Every 100
Hours or
Annually*
Every
250
Hours
Every
500
Hours
Section
Check and add engine oil

Section3
Check all belts for proper alignment 
Section 2
(Pump) 6 (Deck)
Check tire pressure and wheel lug nuts

Section 5
Check battery terminal connections

Section 4
Check condition of blades

Section 6
Check for fuel and oil leakage

Section 3
Check cooling system coolant

Section 3
Engine Air Cleaner inspection

Section 3
Fuel system primary filter/water
separator inspection

Section 3
Initial change of hydraulic oil and filter

Section 1
Grease mower

Section 5
Tighten nuts and screws

Section 5
Fuel tank water and sediment drain

Cooling system coolant sampleDealer

Engine oil sample**Dealer

Replace air element and pre-cleaner

Section 3
Change hydraulic oil and filter

Section 1
Change engine oil and filter

Section 3
Replace fuel filter

Section 3
Cooling system supplemental coolant
additive-test/add
Dealer

Clean Radiator

Section 3
*Maintenance by hour or annually whichever comes first
**Maintenance by hour or every six months, whichever comes first
Check air and fuel filter more often in dusty conditions
DealerGet maintenance performed at a registered dealership
SECTION5:MOWERSTORAGE&
TRANSPORTATION
5.1 Keep machine fromcollecting debris by storing in a covered area while notin use.
5.2 Fuel can harm your machine if left for more than 30 days without changing.
5.3 Disconnect the negative battery cablewhen machine will be stored for more than30 days.
5.4 Always secure machine properly whentransporting machine.
5.5 Do not load machine on trailerwith blades engaged.
5.6 Do not useramps to load the machine.
5.7 Make sureParking Brake is in “up” position.
5.8 In wet conditions tires may spin while loading / unloading. If necessary, wait fordry conditions before
loading/unloading.
5.9 Make sure mode oftransportation is suitable to bearthe weight of mower.
5.10 Deck height should be set at maximumbefore attempting to load.
5.11 Secure mower with at least two straps capable of securing weight ofmower.

PAGE 11
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PAGE 12
SECTION6:TROUBLESHOOTING
6.1 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 leastonce per year or
when needed), make sure bladesare tightened properly, check springand belttension, check the
underside of the deck toensure the mowerdeck is freeof grassbuild-up and debris, make sure your
machine is at full throttle, and vary your mowing pattern each time you cut your grass.
6.2 Q: What should I do if my mower won’t start?
A: Check battery charge and connection (grounds), check your fuel (make sure fuel is less than 30
days old and contains no water), make sure your spark plug isin good condition and sparkplug wire is
attached, and make sure air filter isclean (a dirty filter makes it more difficultfor theengine to drawair).
Check the integrity of the 25-amp main fuse;also checkfor any bare wires and/orbad connections.
6.3 Q: What should I do if the blades won’t engage?
A: Make sure the safety switch is plugged inon the bottom of seat. Checkthe underside of thePTO
engager to ensure the plug is secureat switch.Also check PTO fuse underneath operator console (10-
amps)
6.4 Q: What type of fuel is recommended for my mower?
A: We recommend that you use a name brand fuel to ensure quality. Use only Ultra Low Sulfur
Diesel Fuel.
6.5 Q: Do you offer touch-up paint for your mowers?
A: Touch-up paint is available. Contact your local dealer for more information.
6.6 Q: How do I clean my mower?
A: It is recommended that you use an air hose or blower to remove dustand debris from the mower, to
ensure there is not a buildup ofgrass on the mower deck and engine compartment, which could
become a fire hazard. If you must wash the mower, ensure you run the engine to operating temp to dry
water and engagethe blades to spin offany standing water on the pulleys. Avoid spraying water onto
electrical components and bearings, to prevent premature failure of these parts.

PAGE 13
SECTION7:CONTROLS
7.1 Ignition Switch: Bad Boymowershave a three-position ignition switch: off, run, and start. With key
inserted,rotate it clockwiseto START position and release key when engine starts, and switch will
automatically return to the RUN position.
7.2 Throttle Control: A cable isconnected to the engine throttle for controlling engine speed. Move lever
forward to increase engine rpm, move lever backward to decrease engine rpm.
7.3 Pre-Heat Button:Before starting engine push to pre-heat for easier starting.
7.4 Control Levers: These levers control the mower’s speed, direction, and neutrallock. These levers are
used to steer, accelerate, decelerate and change direction.
7.5 Blade Engage Switch: This switch engages the blades. Pullthe switch up to engage the blades and
push theswitch down to disengage the blades.
7.6 Deck Lift Control: The decklift switch is used to raise and lower the deck. Pullthe switch backwards
to raise the deck and push the witchforward to lowerthe deck.
7.4
7.1
7.5
7.6
7.2
7.3

PAGE 14
SECTION8:MOVINGINOPERABLEMOWER
8.1 Do not towmachine. Use awinch to load on a trailer for transporting.
8.2 ATTENTION: RETURN BYPASS VALVES TO OPERATING POSITION BEFORE RUNNING MOWER
FOLLOWING REPAIRS.
8.3 If it is necessary to move mowerwhen the engine is inoperable, the hydraulic drive pumps. re equipped
with bypass valves. Before moving the mower,turn thebypass valves counterclockwise one-half to one
revolution. Thebypass valve bolts are located on the side ofeach pump and are easily identified bythe
hole through thebolt heads
Your Bad Boy Mower Weighs:
DIESEL: 1607 lbs.-1935lbs.
***Weights fluctuate with the addition of accessories.
8.4 As you can see bythe weights of the machines, you shouldn’t evertry to push or pulla Bad Boy Mower
by hand. This could cause serious bodily injury.
8.5 Hopefully, you’ll neverneed to use this section of the manual. However, if you do, use extreme caution
when moving machine!
SECTION9:INSTRUMENTATION
9.1 Electronic Hour Meter: Displays total operating hours (0.1 hour increments, up to 9,999.9 hours),
resettable timers, oilchange reminders (5 hour break-in reminder followed by 50 hour interval
reminders), air filter cleaning reminder, and RPM gauge. Pressbuttonto cyclebetween functions. To
reset atimer, depress and hold button for 2 seconds.
9.2 Oil Light: Alerts the operator that there is a low oil pressure situation inside the engine.
9.3 Check Engine Light: Alerts the operator thatthe ECM has detected an issue with the engine

PAGE 15
SECTION10:MOWERBLADEMAINTENANCE
10.1 Check mower blades after each use. This is essential for maintaining well-groomedturf. Keep the
blades sharp. Ifa dull bladeis usedfor cutting, the grasswill tear ratherthan cut. This coulddamage
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.
10.2 NEVER attemptto straighten a bent blade by heating.NEVER attemptto weld a cracked
blade. Theblades can break and cause serious injury or death.
10.3 NEVER work with blades while engine is running or deck clutch is engaged.
10.4 ALWAYSplace deckclutch in DISENGAGE position while performing maintenance.
10.5 Use blocks when you MUST work under mower.
10.6 ALWAYS wear thick gloveswhen 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!
NEVER CHECK BLADES WHILE BLADES ARE ENGAGED!)
SECTION11:EQUIPMENTLUBRICATION
11.1 Park the machine on a level surface and disengage the blade control switch.
11.2 Move the motion controllevers outward to the neutralposition, engage parking brake, stop the engine,
remove the key, and waitfor allmoving parts tostop before leaving theoperatingposition.
11.3 Grease Type: NGLI grade #2 multi-purpose gun grease.
11.4 Clean the greasefittings with a cloth.Scrape any paint off the front of the fitting(s).
11.5 Connect a grease gun to each fitting.Pump grease into the fittinguntil grease seepage isobserved. Be
mindful of over-pressurization. Do not force the leverarm if there is strong backpressure as this can
lead to reduced life of the component(s). Wipeup excess grease.
11.6 Refer to service manual section for grease fitting locations.

PAGE 16
HOWTOCHOOSETHERIGHTBLADE
Essentially there are only TWO basic styles of mowingblades 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 outfrom the deck to fall onto the lawn orto be capturedin a grass collection system.
Standard blades are also referred to as “2-in-1” (discharging & bagging) or “high-lift” blades (because
they are designed to create a higher-lifting airflow).
2. Mulching bladesgenerally have amore curved style surface and frequentlyincludeextra cutting
surfacesalong the blade edges. Theseblades may also come in a “+” design (which is actually two
individual blades arranged in a perpendicular fashion toenhance mulching). The “+” blades are usually
found on older style mowers; newer onesutilize bladeswith more advanced mulching technology.
Mulching blades may also be referred to as “3-in-1” (mulching, discharging & bagging) or “all-purpose”
blades.
Bear in mind that the re-circulating airflow design of 3/1 blades makes them less efficient at discharging grass
clippings than a standard 2/1 blade.As with most all-purpose tools, there issome give and take as opposed to
using a tool designed for a more specific purpose.
If you’re experiencing less-than-desired cutting or discharging performance with a 3/1 blade,you maywant to
check into using a2/1 blade. Conversely,if you’re using a 2/1 blade and want to mulch clippings, you should
see about the availability ofmulching bladesor a mulching kit. *
The type of blade installedon a new mower is a decision the retailermakesfor each model of mower, based on
the expected needsof most customers. If you’re unsure of which blade is on a particular model, inspect the
blade. Bladeshave partnumbers stamped into them. Then compare these part numbers with the unit’s
Operator’s Manual or Parts List.
It is true there are many other styles of blades available. But since we don’t manufacture or recommend using
these other aftermarketstyles, we will leavethem out of thisdiscussion. Should you wantmore information on
special application or aftermarket blades, you should contact thecompanies that make theseproducts. NOTE:
Customers using non-OEM blades do so at their own risk. The use of unapproved (non-OEM) blades may void
any or allof the mower and engine factory warranties.
* MULCHING KITS – These generally consist ofmulching bladesand a mulching plug (which closes off the
discharge opening to keep the clippings contained under the deck for re-cutting) plus any necessary hardware
for installation. Please check with your parts distributorregarding the contents of aparticularmulching kit.

PAGE 17
MOWINGTIPS:
•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 backand 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. Ifcircumstances 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 itdown 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 iswet 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 of the height of the grass 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 backinto 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 oilat 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’tuse that old gas unless you properly used a fuel stabilizer, itcan 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 isthe vascular tissue of the
plant.
•Leaf blade D has been mown for quite some time with a dull mower blade.
TOBAGORTOMULCH?
Grass clippings do not contribute to thatch buildup or increase the chances of disease. Ifyou 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 itwith additional organic materials. Clippings from a 1000
sq. ft. lawn can add as much as 1 - 2 pounds of nitrogen back into the soil. Ifyou 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 ismixed thoroughly with brown
matter to avoid a strong ammonia odor. DO NOT COMPOST CLIPPINGS after applying any weed control orweed-feed type
product. Before adding clippings to the compost pile wait at least 3 mowings after these products have been applied.

PAGE 18
SERVICESECTION
SECTION1:HYDROSTATICSYSTEM
The hydraulic reservoirtankon the Diesel 1500cc model
is located under the seat. There is a dipstick that
indicatesthe current hydraulic oil level. Use only 20W-50
motor oil in this tank. Conventional or synthetic oil may
be used. Bad Boy Hydrostatic Oil is recommended. Bad
Boy recommends thatthe hydraulic oil and filters be
changed within the first 50 hours of use; then at intervals
of 250 usage hours. Use only Bad Boy replacement
filters. Use ofany other filters may result in damage to the
hydraulic system and void the warranty. Each side
requires approximately two quarts of oil to refill the
system.
THE FOLLOWING MAINTENACE IS TO BE
PERFORMED ON A LEVEL SURFACE.
CHANGINGYOURHYDRAULICOILANDFILTER
1.Place an oil drain panunderthe engine plateand
place thehydraulic return lines that go into the
top of the hydraulic reservoir tank into theoil pan.
Remove the cap from the hydraulic reservoir
tank.
2. Start the engine in order to cycle out the old
hydraulic oil.
3. When you see air bubbles in the hydraulic lines
immediately shut off the mower. Keep in mind
that only 75-80% of the hydraulic oil can be
changed at a time.
4. Place rags under the hydraulic filters. Turn the
hydraulic filters counter clockwise to remove.
5. Fill the new hydraulic oil filters with 20W-50
motor oil. Only use Bad Boy replacement filters.
6. Place the hydraulic return lines back onto the
hydraulic reservoir tank.Fill the hydraulic
reservoir tank until the oil level reaches the
bubble on the dipstick.Be careful not to overfill
the hydraulic reservoir tank.
7) Proceed to the purge procedure.

PAGE 19
PURGINGPROCEDURE
Due to the effects airhas on the efficiency in hydrostatic
drive applications, it is critical that the airis purged from
the system. These purgeprocedures should be
implemented any time a hydrostatic system has been
opened to facilitate maintenance or any additional oil has
been added to the system.
1. Lift the rear tires of themower offof the ground
and chock your front tires so they do no move.
2. With the bypass valve open and the engine
running, slowly move the directional drive arms in
the forward and reverse directions (5to 6 times),
as air is purged from the unit, the oil level will
drop.
3. With thebypassvalve closed and the engine
running, slowly move the directional drive arms in
the forward and reverse directions (5to 6 times).
Check the oil level, and add oil as required after
stopping the engine.
4. It may be necessary to repeat steps 2 and 3 until
all the air is completely purged from the system.
When the transaxle movesforward and reverse
at normal speed purging is complete.

PAGE 20
SECTION2:DRIVEBELT
Shown on the right is the tensioner for your pump belt.
Adjusting this will either increase or decrease tension on
the belt. Use a 3/4 “wrench to loosen the jam nuts and
either tighten for more belt tension or loosen for less belt
tension.
The belt tension should be set to 50-60 lbs.
Use a belt tension gauge to ensure the proper tension. Your
dealer or service center will have belt tension gauge or you
can buy one fromthe Bad Boy Parts Department by calling
866-622-3269 and asking for the Parts Department. (Part
Number 041-9999-00)