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Problem

Cause

Remedy

Engine fails to start 

PTO/Blade Engage knob engaged.

1. 

Parking brake not engaged. 

2. 

Spark plug wire(s) disconnected. 

3. 

Throttle/Choke control lever not in correct 

4. 

starting position. 

Choke not activated 

5. 

Fuel tank empty, or stale fuel.  

6. 

Blocked fuel line. 

7. 

Faulty spark plug(s). 

8. 

Engine flooded. 

9. 

Place knob in disengaged (OFF) position. 

1. 

Engage parking brake. 

2. 

Connect wire(s) to spark plug(s). 

3. 

Place Throttle/Choke control lever to FAST 

4. 

position. 

Place the Throttle/Choke control lever into 

5. 

the choke on position. 

Fill tank with clean, fresh (less than 30 days 

6. 

old) gas. 

Clean fuel line and replace fuel filter. 

7. 

Clean, adjust gap or replace plug(s). 

8. 

Crank engine with throttle in FAST position. 

9. 

Engine runs erratic 

Tractor running with CHOKE activated. 

 

1. 

Spark plug wire(s) loose. 

2. 

Blocked fuel line or stale fuel.  

3. 

Vent in gas cap plugged. 

4. 

Water or dirt in fuel system.  

5. 

Dirty air cleaner. 

6. 

Move the Throttle/Choke control lever into 

1. 

the choke off position. 

Connect spark plug wire(s). 

2. 

Clean fuel line; fill tank with clean, fresh 

3. 

gasoline and replace fuel filter. 

Clear vent or replace cap if damaged. 

4. 

Drain fuel tank. Refill with clean, fresh 

5. 

gasoline. 

Replace air cleaner paper element or clean 

6. 

foam precleaner. 

Engine overheats 

Engine oil level low.  

1. 

Air flow restricted. 

2. 

Fill crankcase with proper amount and 

1. 

weight of oil. 

Clean grass clippings and debris from around 

2. 

the engine’s cooling fins and blower housing. 

Engine hesitates at high 

RPM 

Spark plug(s) gap too close. 

1. 

Remove spark plug(s) and reset the gap. 

1. 

Engine Idles rough 

Spark plug(s) fouled, faulty or gap too wide. 

1. 

Dirty air cleaner. 

2. 

Replace spark plug(s). Set plug gap. 

1. 

Replace air cleaner element and/or clean 

2. 

pre-cleaner. 

Excessive vibration 

Cutting blade loose or unbalanced. 

1. 

Damaged or bent cutting blade. 

2. 

Tighten blade and spindle. 

1. 

Replace blade. 

2. 

Mower will not mulch grass 

Engine speed too low. 

1. 

Wet grass. 

2. 

Excessively high grass.  

3. 

 

Dull blade. 

4. 

Place throttle in FAST (rabbit) position.

1. 

Do not mulch when grass is wet. 

2. 

Mow once at a high cutting height, then 

3. 

mow again at desired height or make a 

narrower cutting swath. 

Sharpen or replace blade. 

4. 

Uneven cut 

Deck not leveled properly. 

1. 

Dull blade. 

2. 

Uneven tire pressure. 

3. 

Perform side-to-side deck adjustment. 

1. 

Sharpen or replace blade. 

2. 

Check tire pressure in all four tires. 

3. 

Troubleshooting

8

29

Summary of Contents for TB2450

Page 1: ...et Up Operation Maintenance Service Troubleshooting Warranty WARNING READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE THIS MACHINE FAILURE TO COMPLY WITH T...

Page 2: ...discussed and or illustrated in this manual may not be applicable to all models We reserve the right to change product specifications designs and equipment without notice and without incurring obliga...

Page 3: ...ects which ricochet can cause serious injury to the eyes Wear sturdy rough soled work shoes and close fitting 9 slacks and shirts Loose fitting clothes and jewelry can be caught in movable parts Never...

Page 4: ...mselves and others from serious injury If situations occur which are not covered in this manual use 29 care and good judgment Contact your customer service representative for assistance Slope Operatio...

Page 5: ...ot shift to neutral and coast downhill 7 Service Safe Handling of Gasoline To avoid personal injury or property damage use extreme 1 care in handling gasoline Gasoline is extremely flammable and the v...

Page 6: ...of the engine Maintain or replace safety and instruction labels as 13 necessary Observe proper disposal laws and regulations for gas oil 14 etc to protect the environment According to the Consumer Pro...

Page 7: ...deck Contact with the blade s can amputate hands and feet WARNING THROWN OBJECTS This machine may pick up and throw and objects which can cause serious personal injury WARNING THROWN OBJECTS This mach...

Page 8: ...s a 1 5 s l o p e 15 Use this page as a guide to determine slopes where you may not operate safely WARNING Do not operate your lawn mower on such slopes Do not mow on inclines with a slope in excess...

Page 9: ...s transmission Shipping Brace Removal Warning Make sure the lawn tractor s engine is off set the parking brake and remove the ignition key before removing the shipping brace Locate the shipping brace...

Page 10: ...ual prior to operating the tractor Checking Tire Pressure Warning Do not overinflate tires Check sidewall of tires for maximum psi Equal tire pressure should be maintained at all times The tires on yo...

Page 11: ...and a half gallons Remove the fuel cap by turning it counterclockwise Use only clean fresh no more than 30 days old unleaded gasoline Do not overfill the tank Warning Use extreme care when handling g...

Page 12: ...e certain that the throttle choke control is always in the FAST rabbit position FAST CHOKE SLOW Systems Indicator Monitor Brake Pedal Cup Holder Drive Pedal Deck Lift Lever Electric PTO Knob Ignition...

Page 13: ...he battery s output in volts on its LCD for approximately five seconds after which it displays an hour glass and the hours of tractor operation Once the tractor is started the monitor continually disp...

Page 14: ...ted in the center of the tractor s dash panel below the steering wheel the Parking Brake Cruise Control lever is used to engage the parking brake and the cruise control Refer to the Operation section...

Page 15: ...clutch will automatically shut off if the PTO Blade Engage knob is moved into the engaged ON position with the drive pedal in position for reverse travel Warning Do not operate the tractor if the int...

Page 16: ...mmended Warning Use extreme caution while operating the tractor in the REVERSE CAUTION MODE Always look down and behind before and while backing Do not operate the tractor when children or others are...

Page 17: ...emain in the down position If it doesn t the parking brake is not engaged Repeat steps 1 through 4 to engage the parking brake To disengage the parking brake lightly press the brake pedal Warning Neve...

Page 18: ...void discharge of materials toward roads sidewalks bystanders and the like Also avoid discharging material against a wall or obstruction which may cause discharged material to ricochet back toward the...

Page 19: ...mplete an oil change proceed as follows Run the engine for a few minutes to allow the oil in the 1 crankcase to warm up Warm oil will flow more freely and carry away more of the engine sediment which...

Page 20: ...and reproductive harm Wash hands after handling The battery is sealed and is maintenance free Acid levels cannot be checked and fluid can not be added Always keep the battery cables and terminals cle...

Page 21: ...ith the deck wash system return to the operator s position and engage the PTO Keep the cutting deck running for a minimum of two minutes allowing the underside of the cutting deck to thoroughly dry Lu...

Page 22: ...he lock nut against the hex nut when proper 4 adjustment is achieved Leveling the Deck Side to Side If the cutting deck appears to be mowing unevenly a side to side adjustment can be performed Adjust...

Page 23: ...urns tighter in one direction than the other or if the ball joints are being replaced due to damage or wear the steering drag links may need to be adjusted Adjust the drag links so that equal lengths...

Page 24: ...e tractor s c electric PTO clutch NOTE If there is too much tension on the belt for it to be easily removed from the electric PTO clutch carefully insert a 3 8 drive ratchet wrench set to loosen into...

Page 25: ...od to the tractor frame See Fig 7 4 Remove the cotter pin from the end of the stabilizer rod 10 and slide the stabilizer out of the hanger bracket on the deck See Fig 7 5 Gently slide the cutting deck...

Page 26: ...6 To properly sharpen the cutting blades remove equal 4 amounts of metal from both ends of the blades along the cutting edges parallel to the trailing edge at a 25 to 30 angle Always grind each cuttin...

Page 27: ...hes dryer or other gas appliances Caution When charging your tractor s battery use only a charger designed for 12V lead acid batteries Read your battery charger s Owner s Manual prior to charging your...

Page 28: ...t your hands by using heavy gloves when grasping blades and pulleys Warning The V belts found on your tractor are specially designed to engage and disengage safely A substitute non OEM V belt can be d...

Page 29: ...ilter Clear vent or replace cap if damaged 4 Drain fuel tank Refill with clean fresh 5 gasoline Replace air cleaner paper element or clean 6 foam precleaner Engine overheats Engine oil level low 1 Air...

Page 30: ...KH 25 050 22 S1 Fuel Filter 954 04077 Drive Belt Mowing Deck 942 04053C 2 in 1 Deck Blade 918 04125B Deck Spindle Contact your Troybilt dealer to order replacement parts or a complete Parts Manual ha...

Page 31: ...2 Throttle Choke Control Cable 925 1745A Ignition Key Plastic 631 04070A Discharge Chute Assembly Contact your Troybilt dealer to order replacement parts or a complete Parts Manual have your full mode...

Page 32: ...actors are NOT designed for use with any type of ground engaging attachments e g tiller or moldboard plow Use of this type of equipment WILL void the tractor s warranty Model Number Description 190 19...

Page 33: ...Notes 11 33...

Page 34: ...t cause the failure of a warranted part to be identical in all material respects to that part as described in MTD Consumer Group Inc s application for certification The warranty period begins on the d...

Page 35: ...ill eligible for warranty coverage Further the coverage under this warranty extends only to parts that were present on the off road engine and equipment purchased The following emission warranty parts...

Page 36: ...nty Refer to applicable manufac turer s warranty for terms and conditions b Log splitter pumps valves and cylinders have a separate one year warranty c Routine maintenance items such as lubricants fil...

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