Kubota Z726X - User Manual

Questions and Answers

J
Jessica RobinsonNov 21, 2025
How to fix Kubota Lawn Mower engine that is difficult to start?
- E
  Eric JacksonNov 21, 2025
  If your Kubota Lawn Mower engine is difficult to start or won't start, there are several potential causes. Make sure you're sitting on the operator's seat and that the parking brake is applied. Also, ensure the PTO switch is in the "DISENGAGED" (OFF) position and the motion control levers are in the "NEUTRAL LOCK" position. The key switch should be in the "ON" position. Check your fuel level and replace the fuel and fuel filter if the fuel is old or of poor quality. If there's water or dirt in the fuel system, replace the fuel and consult your Kubota dealer. Clean or replace fuel lines if they are clogged or damaged. Clean or replace the air cleaner if it's clogged. Adjust or replace the spark plug if it's defective. Replace the fuse if it's blown. Use oils of different viscosities dependi...
D
Daniel MaciasAug 25, 2025
Why does my Kubota Z726X Lawn Mower engine overheat?
- M
  michaelwilliamsAug 26, 2025
  If your Kubota Lawn Mower engine overheats, it could be due to several reasons. You might be overloading the engine, so lower the speed or reduce the load. Check if the engine oil is insufficient and replenish it. Clean the engine air intake screen and cooling fins if they are dirty. Also, make sure the air cleaner element is not plugged and clean or replace it. Operate the engine at the "FAST" speed. Finally, ensure you operate the machine at a slower ground speed.
O
obarajasAug 26, 2025
Why is my Kubota Z726X leaving an uneven cut?
- K
  Kathryn JonesAug 27, 2025
  If your Kubota Lawn Mower is not cutting evenly, the mower deck may not be level, so level it. You might be moving too fast, so slow down. The blades could be dull, so have them sharpened, or worn/damaged, so replace them. Check for low tire inflation and add air to correct pressure. Ensure the anti-scalp rollers are adjusted correctly. Also, make sure both tire pressures are set to the correct pressure.
F
francesmasonAug 27, 2025
How to prevent my Kubota Z726X Lawn Mower blades from scalping grass?
- D
  dthompsonAug 27, 2025
  If the blades on your Kubota Lawn Mower are scalping the grass, it could be because the cutting height is too low, so raise it. You might be turning too fast, so reduce speed on turns. Ridges in the terrain can also cause this, so change your mowing pattern. If the terrain is rough or uneven, adjust the wheels pressure and anti-scalp rollers. Also, make sure the anti-scalp rollers are adjusted correctly. Finally, check for bent blades and replace them if necessary.
K
Kyle OwensAug 29, 2025
Why is my Kubota Z726X Lawn Mower vibrating excessively?
- T
  Tabitha RodriguezAug 29, 2025
  If your Kubota Lawn Mower has excessive vibration, check for debris on the mower deck or in the pulleys and clean them. A damaged mower belt could be the cause, so replace it. Also, inspect the pulleys for damage and replace them if needed. Make sure the pulleys are in alignment and have the blades balanced.
C
Cody RichardsSep 18, 2025
Why does the top of my Kubota Z726X battery look whitish?
- K
  Keith BenjaminSep 18, 2025
  If, when viewed from the top, the top of the plates of your Kubota Lawn Mower battery look whitish, it could be because the battery was used with an insufficient amount of electrolyte, so add distilled water and charge the battery. Also, the battery might have been used too much without recharging, so charge the battery sufficiently.
U
uevansSep 15, 2025
Why is the transaxle belt slipping on my Kubota Z726X?
- R
  Randall MaysSep 16, 2025
  If your Kubota Lawn Mower transaxle belt is slipping, it may be due to a weak tension spring, so replace it. Also, the transaxle belt could be worn, so replace it.
A
andrewsfrancesSep 17, 2025
Why are the terminals on my Kubota Lawn Mower severely corroded and heating up?
- K
  Krystal VelazquezSep 18, 2025
  If the terminals of your Kubota Lawn Mower are severely corroded and heat up, it's likely due to a poor terminal connection, so clean the terminal and tighten securely.
M
Michelle MarshallSep 7, 2025
Why is my Kubota Z726X Lawn Mower machine operation not smooth?
- C
  Carolyn RiveraSep 7, 2025
  If your Kubota Lawn Mower is not operating smoothly, it could be due to insufficient hydrostatic transaxle fluid, so replenish the oil. If the filter is clogged, replace it. If the transaxle bypass lever is activated, deactivate it.
R
Robert WatsonSep 4, 2025
Why does the blade on my Kubota Lawn Mower not rotate?
- D
  Duane ArmstrongSep 5, 2025
  If your Kubota Lawn Mower blade does not rotate, and the PTO system is malfunctioning, consult your Kubota Dealer. If the PTO system is normal, but the mower belt is broken, replace it.

Summary

SAFETY FIRST

DANGER

Indicates an imminently hazardous situation.

WARNING

Indicates a potentially hazardous situation.

CAUTION

Indicates a potentially hazardous situation.

IMPORTANT

Indicates equipment or property damage.

NOTE

Gives helpful information.

SAFE OPERATION

BEFORE OPERATING

Read and understand manual before operating machine.

OPERATING

Operation on slopes

Procedures for safe operation on slopes.

INSTRUMENT PANEL AND CONTROLS

Motion control lever

Levers controlling machine movement and steering.

Seat belt

ROPS

Roll-Over Protective Structure for safety.

MOWER MOUNTING

MOUNTING THE MOWER DECK

Step-by-step instructions for attaching the mower deck.

Adjusting Mower Level

DISMOUNTING THE MOWER DECK

OPERATING THE ENGINE

STARTING THE ENGINE

Procedures for starting the engine.

Sit on Operators Seat

Apply Parking Brake

Place Motion Control Levers in Neutral Lock

Position levers for safe starting.

Ensure PTO Switch is Disengaged

Insert and Turn Key Switch

CHECK DURING OPERATING

Monitoring machine status during operation.

Immediately Stop the Engine if:

Conditions requiring immediate engine shutdown.

JUMP STARTING

Procedures for jump starting a dead battery.

STOPPING THE ENGINE

Steps to safely shut down the engine.

OPERATING THE MACHINE

OPERATING NEW MACHINE

OPERATING FOLDABLE ROPS

Instructions for using the foldable Roll-Over Protective Structure.

To Fold the ROPS

Step-by-step instructions to fold the ROPS.

To Raise the ROPS to Upright Position

Step-by-step instructions to raise the ROPS.

STARTING

Procedures for starting the machine.

Operators Seat

Seat Belt

Proper use and importance of the seat belt.

Raise the implement (Mower Lift Pedal)

Operate the machine (Motion Control Lever)

Operating the machine using motion control levers.

Stop position

Forward and Reverse Motion

Operating the machine forward and in reverse.

STOPPING

Procedures for safely stopping the machine.

PARKING

TRANSPORTING

OPERATING THE MOWER

MAKING THE MOST OF YOUR MOWER

ADJUSTING CUTTING HEIGHT

Adjusting the mower deck cutting height.

To set the cutting height

PTO Switch

Engaging and disengaging the Power Take-Off.

Starting

Procedures for starting the mower.

MAINTENANCE

SERVICE INTERVALS

Schedule for routine maintenance tasks.

PERIODIC SERVICE CHART LABEL

Chart detailing periodic service tasks and intervals.

LUBRICANTS AND FUEL

PERIODIC SERVICE

DAILY CHECK

Pre-operation checks for the machine.

Checking Engine Oil Level

Procedure to check and maintain engine oil level.

Checking Amount of Fuel and Refueling

Fuel checking and refueling procedures.

Checking and Cleaning Air Intake Screen

Checking Tire Pressure

Checking Transaxle Fluid Level

Checking and maintaining the transaxle fluid level.

EVERY 50 HOURS

Maintenance tasks every 50 hours.

Checking Engine Start System

Testing engine start system safety features.

Checking OPC System

Testing the Operator Presence Control system.

EVERY 100 HOURS

Maintenance tasks every 100 hours.

Changing Engine Oil

Checking Air Cleaner Outer Element

Checking Fuel Lines and Fuel Filter

Inspecting fuel lines and filter for wear and clogs.

Adjusting Parking Brake

Adjusting the parking brake for proper function.

Checking Battery Condition

Assessing battery health and charging needs.

STORAGE

TROUBLESHOOTING

ENGINE TROUBLESHOOTING

Diagnosing and correcting engine problems.

BATTERY TROUBLESHOOTING

Diagnosing and resolving battery issues.

MACHINE TROUBLESHOOTING

Troubleshooting issues with the machine's operation.

MOWER TROUBLESHOOTING

Troubleshooting problems related to the mower deck.

Summary

SAFETY FIRST

DANGER

Indicates an imminently hazardous situation.

WARNING

Indicates a potentially hazardous situation.

CAUTION

Indicates a potentially hazardous situation.

IMPORTANT

Indicates equipment or property damage.

NOTE

Gives helpful information.

SAFE OPERATION

BEFORE OPERATING

Read and understand manual before operating machine.

OPERATING

Operation on slopes

Procedures for safe operation on slopes.

INSTRUMENT PANEL AND CONTROLS

Motion control lever

Levers controlling machine movement and steering.

Seat belt

ROPS

Roll-Over Protective Structure for safety.

MOWER MOUNTING

MOUNTING THE MOWER DECK

Step-by-step instructions for attaching the mower deck.

Adjusting Mower Level

DISMOUNTING THE MOWER DECK

OPERATING THE ENGINE

STARTING THE ENGINE

Procedures for starting the engine.

Sit on Operators Seat

Apply Parking Brake

Place Motion Control Levers in Neutral Lock

Position levers for safe starting.

Ensure PTO Switch is Disengaged

Insert and Turn Key Switch

CHECK DURING OPERATING

Monitoring machine status during operation.

Immediately Stop the Engine if:

Conditions requiring immediate engine shutdown.

JUMP STARTING

Procedures for jump starting a dead battery.

STOPPING THE ENGINE

Steps to safely shut down the engine.

OPERATING THE MACHINE

OPERATING NEW MACHINE

OPERATING FOLDABLE ROPS

Instructions for using the foldable Roll-Over Protective Structure.

To Fold the ROPS

Step-by-step instructions to fold the ROPS.

To Raise the ROPS to Upright Position

Step-by-step instructions to raise the ROPS.

STARTING

Procedures for starting the machine.

Operators Seat

Seat Belt

Proper use and importance of the seat belt.

Raise the implement (Mower Lift Pedal)

Operate the machine (Motion Control Lever)

Operating the machine using motion control levers.

Stop position

Forward and Reverse Motion

Operating the machine forward and in reverse.

STOPPING

Procedures for safely stopping the machine.

PARKING

TRANSPORTING

OPERATING THE MOWER

MAKING THE MOST OF YOUR MOWER

ADJUSTING CUTTING HEIGHT

Adjusting the mower deck cutting height.

To set the cutting height

PTO Switch

Engaging and disengaging the Power Take-Off.

Starting

Procedures for starting the mower.

MAINTENANCE

SERVICE INTERVALS

Schedule for routine maintenance tasks.

PERIODIC SERVICE CHART LABEL

Chart detailing periodic service tasks and intervals.

LUBRICANTS AND FUEL

PERIODIC SERVICE

DAILY CHECK

Pre-operation checks for the machine.

Checking Engine Oil Level

Procedure to check and maintain engine oil level.

Checking Amount of Fuel and Refueling

Fuel checking and refueling procedures.

Checking and Cleaning Air Intake Screen

Checking Tire Pressure

Checking Transaxle Fluid Level

Checking and maintaining the transaxle fluid level.

EVERY 50 HOURS

Maintenance tasks every 50 hours.

Checking Engine Start System

Testing engine start system safety features.

Checking OPC System

Testing the Operator Presence Control system.

EVERY 100 HOURS

Maintenance tasks every 100 hours.

Changing Engine Oil

Checking Air Cleaner Outer Element

Checking Fuel Lines and Fuel Filter

Inspecting fuel lines and filter for wear and clogs.

Adjusting Parking Brake

Adjusting the parking brake for proper function.

Checking Battery Condition

Assessing battery health and charging needs.

STORAGE

TROUBLESHOOTING

ENGINE TROUBLESHOOTING

Diagnosing and correcting engine problems.

BATTERY TROUBLESHOOTING

Diagnosing and resolving battery issues.

MACHINE TROUBLESHOOTING

Troubleshooting issues with the machine's operation.

MOWER TROUBLESHOOTING

Troubleshooting problems related to the mower deck.

Kubota Z726X Specifications

General

Cutting Width	54 inches
Transmission	Hydrostatic
Cutting Height	1.5 - 5 inches
Number of Blades	3
Drive	2WD
Displacement	726 cc
Turning Radius	Zero-turn
Deck Material	Steel
Deck Type	Fabricated
Warranty	2 years