Kubota D1703-M-E3 User Manual (English)

Questions and Answers:

S
Stacie BrownAug 19, 2025
What to do if my Kubota D1703-M-E3 suddenly stops?
- K
  Kristen GoodmanAug 19, 2025
  If your Kubota Engine suddenly stops, first, check the fuel tank to ensure there is enough fuel and refill if necessary. Also, inspect the fuel system for any air or leaks. A bad nozzle could also be the cause, and it should be replaced if needed. Overheated moving parts due to a shortage of lubrication oil or improper lubrication can also cause the engine to stop. Check the engine oil level using the oil level gauge and inspect the lubricating oil system. Replace the oil filter cartridge every two oil changes and verify that the engine bearing clearances are within factory specifications.
C
Corey GarciaAug 21, 2025
How to troubleshoot a Kubota D1703-M-E3 that is difficult to start?
- O
  ogreerAug 21, 2025
  If your Kubota Engine is difficult to start, several factors could be the cause. It could be due to insufficient compression caused by leaking valves, which would require replacing them. The issue might also stem from an insufficient fuel supply, necessitating a check of the fuel system. Overheating moving parts could also be the culprit, indicating a need to inspect the lubricating oil system. Alternatively, the valve clearance may not be properly set; in this case, adjust it to between 0.18 and 0.22 mm (0.007 to 0.087 in.) while the engine is cold.
S
Shannon DoyleAug 25, 2025
What to do if my Kubota D1703-M-E3 won't start because of the battery?
- J
  Jennifer RichardsAug 25, 2025
  If your Kubota Engine won't crank, it might be due to a discharged battery. The solution is to charge the battery.
S
Steven ToddAug 28, 2025
Why does the Kubota D1703-M-E3 revolution suddenly decrease or increase?
- D
  Daniel SanchezAug 28, 2025
  Sudden changes in the Kubota Engine's revolution can stem from various issues. The adjustments, injection timing, and the fuel system should be checked. Also, be alert for any unusual sounds coming from the engine, and if heard, carefully inspect all moving parts. Dark exhaust may indicate problems within the fuel injection system, particularly the fuel injection nozzle. Overheated bearing parts suggest a problem with the lubricating system. If the oil lamp illuminates during operation, examine the lubricating system, verify that the engine bearing clearances are within factory specifications, check the function of the relieve valve in the lubricating system, and inspect the pressure switch and filter base gasket.
A
Arthur GrantAug 30, 2025
What causes injection pump wear in a Kubota D1703-M-E3 Engine?
- R
  Rachel AustinAug 30, 2025
  Injection pump wear in a Kubota Engine can be caused by using poor quality fuel.
P
Paul WellsSep 1, 2025
Why is my Kubota D1703-M-E3 hard to start in cold weather?
- M
  Mark PerkinsSep 1, 2025
  If your Kubota Engine struggles to start in cold weather, the engine oil may have become too thick, causing the engine to crank slowly. To resolve this, change the grade of oil to one suitable for the current temperature.
E
Emily ChambersSep 3, 2025
What if fuel is thick and doesn't flow in Kubota D1703-M-E3 Engine?
- E
  Eric WatkinsSep 3, 2025
  If your Kubota Engine is difficult to start, the fuel might be thick and not flowing properly. Inspect the fuel tank and fuel filter.
J
Jeffery EspinozaSep 5, 2025
What to do if the oil lamp lights up during operation of my Kubota Engine?
- T
  Theresa RogersSep 5, 2025
  If the oil lamp lights up during the operation of your Kubota Engine, check the lubricating system. Also check if the engine bearing clearances are within factory specs. Inspect the function of the relieve valve in the lubricating system. Check pressure switch and filter base gasket.
M
Megan PattersonSep 7, 2025
What causes Kubota D1703-M-E3 Engine revolution to suddenly decrease or increase?
- N
  Nicholas CollinsSep 7, 2025
  If your Kubota Engine revolution suddenly decreases or increases, check the adjustments, injection timing, and the fuel system.
A
Andrew ValenzuelaSep 10, 2025
What to do if bearing parts are overheated in Kubota Engine?
- M
  Michael ReynoldsSep 10, 2025
  If bearing parts are overheated in your Kubota Engine, check the lubricating system.

Kubota D1703-M-E3 Specifications

General

Brand	Kubota
Model	D1703-M-E3
Category	Engine
Language	English

Summary

FOREWORD

SAFETY FIRST

Hazard Level Definitions

Defines DANGER, WARNING, CAUTION, IMPORTANT terms for safety.

Information Note

Provides helpful information regarding safety.

SAFE OPERATION

Observe Safety Instructions

Read manual and labels before operating the engine.

Wear Safe Clothing and PPE

Use appropriate protective equipment to avoid injury.

SAFE OPERATION

Checks Before Starting & Operating

Inspect engine, guards, and ensure safe distance before starting.

Engine and Surroundings Cleanliness

Keep engine clean, store flammable fluids properly, check for leaks.

Fuel and Lubricant Handling

Stop engine before refueling, no smoking, refuel in open area.

SAFE OPERATION

Exhaust Gases & Fire Prevention

Ensure ventilation, keep engine clean, check for leaks.

Escaping Fluid Precautions

Relieve pressure before disconnecting, do not use hands to check leaks.

SAFE OPERATION

Burns & Battery Explosion Cautions

Be cautious of hot components, battery hazards.

Rotating Parts Safety

Stop engine before checking rotating parts, keep clear.

SAFE OPERATION

Anti-Freeze & Fluid Disposal

Handle antifreeze carefully, dispose of fluids properly.

SAFE OPERATION

Conducting Safety Checks & Maintenance

Perform checks on level surface, stop engine, use proper tools.

SAFE OPERATION

Warning and Caution Labels

Identifies warning labels and their meanings.

Care of Warning and Caution Labels

Keep labels clean, replace damaged ones.

SERVICING OF THE ENGINE

NAMES OF PARTS

PRE-OPERATION CHECK

Break-In Procedure

Change oil/filter after 50 hours, warm up in low temp.

Daily Check Procedures

Check engine conditions to prevent trouble.

OPERATING THE ENGINE

Starting the Engine (Normal)

Steps for starting the engine normally.

OPERATING THE ENGINE

Cold Weather Starting

Procedure for starting in cold weather.

Stopping the Engine

Steps for shutting down the engine safely.

OPERATING THE ENGINE

Checks During Operation

Checks to perform while the engine is running.

Radiator Cooling Water (Coolant)

Check coolant level, leaks, and other related items.

REVERSED ENGINE REVOLUTION AND REMEDIES

Identifying Reversed Operation

Signs indicating reversed engine operation.

Remedies for Reversed Operation

Steps to take when engine runs backwards.

MAINTENANCE

Service Intervals

Table of recommended service intervals and items.

PERIODIC SERVICE

Fuel System Maintenance

Handling fuel, precautions, and specifications.

PERIODIC SERVICE

Air Bleeding the Fuel System

Procedure for bleeding air from the fuel system.

PERIODIC SERVICE

Checking the Fuel Pipes

Inspecting fuel pipes for damage and leaks.

PERIODIC SERVICE

Cleaning the Fuel Filter Pot

Cleaning the fuel filter to prevent dust intrusion.

PERIODIC SERVICE

Fuel Filter Cartridge Replacement

Replacing the fuel filter cartridge.

ENGINE OIL

Checking Oil Level and Adding Oil

How to check and add engine oil.

ENGINE OIL

Changing Engine Oil

Procedure for draining and changing engine oil.

ENGINE OIL

Replacing the Oil Filter Cartridge

Steps to replace the oil filter cartridge.

RADIATOR

Checking Coolant Level and Adding Coolant

How to check and add coolant.

RADIATOR

Changing Coolant

Procedure for draining and replacing coolant.

RADIATOR

Coolant Decrease Remedies

Steps to take for quick coolant loss.

Radiator Hoses and Clamp Check

Inspecting hoses and clamps for leaks or damage.

Overheating Precautions

What to do when the engine overheats.

Cleaning Radiator Core (Outside)

Cleaning the external radiator fins.

RADIATOR

Anti-Freeze Information

Information on antifreeze and coolant mixture.

AIR CLEANER

Dust Indicator (Optional)

How to use the dust indicator.

Evacuator Valve Operation

How to use the evacuator valve.

AIR CLEANER

Cleaning Primary Air Filter Element

Cleaning the primary air filter element.

Evacuator Valve Operation

How to use the evacuator valve.

Air Cleaner with Dust Cup (Optional)

Procedure for air cleaners with dust cups.

AIR CLEANER

Dust Indicator (Optional)

How to use the dust indicator.

BATTERY

Battery Charging Procedures

Procedures and warnings for charging the battery.

BATTERY

Long Term Battery Storage

Storing the battery for extended periods.

ELECTRIC WIRING

FAN BELT

Adjusting Fan Belt Tension

How to adjust the fan belt tension.

CARRIAGE AND STORAGE

Engine Carriage Safety

Safety precautions for carrying the engine.

Engine Storage Procedures

Procedures for storing the engine.

TROUBLESHOOTING

Engine Starting Difficulties

Causes and solutions for starting problems.

Insufficient Engine Output

Causes and solutions for low engine output.

TROUBLESHOOTING

Sudden Engine Stops

Causes and solutions for sudden engine stoppage.

Bad Exhaust Color Issues

Causes and solutions for bad exhaust color.

Engine Overheating Causes

Causes and solutions for engine overheating.

Immediate Engine Shutdown Causes

Causes and solutions for immediate engine shutdown.

SPECIFICATIONS

WIRING DIAGRAMS

Related product manuals

Kubota D1703-M-E3 User Manual

Table of Contents

Questions and Answers:

Kubota D1703-M-E3 Specifications

Summary

FOREWORD

SAFETY FIRST

Hazard Level Definitions

Information Note

SAFE OPERATION

Observe Safety Instructions

Wear Safe Clothing and PPE

SAFE OPERATION

Checks Before Starting & Operating

Engine and Surroundings Cleanliness

Fuel and Lubricant Handling

SAFE OPERATION

Exhaust Gases & Fire Prevention

Escaping Fluid Precautions

SAFE OPERATION

Burns & Battery Explosion Cautions

Rotating Parts Safety

SAFE OPERATION

Anti-Freeze & Fluid Disposal

SAFE OPERATION

Conducting Safety Checks & Maintenance

SAFE OPERATION

Warning and Caution Labels

Care of Warning and Caution Labels

SERVICING OF THE ENGINE

NAMES OF PARTS

PRE-OPERATION CHECK

Break-In Procedure

Daily Check Procedures

OPERATING THE ENGINE

Starting the Engine (Normal)

OPERATING THE ENGINE

Cold Weather Starting

Stopping the Engine

OPERATING THE ENGINE

Checks During Operation

Radiator Cooling Water (Coolant)

REVERSED ENGINE REVOLUTION AND REMEDIES

Identifying Reversed Operation

Remedies for Reversed Operation

MAINTENANCE

MAINTENANCE

Service Intervals

PERIODIC SERVICE

Fuel System Maintenance

PERIODIC SERVICE

Air Bleeding the Fuel System

PERIODIC SERVICE

Checking the Fuel Pipes

PERIODIC SERVICE

Cleaning the Fuel Filter Pot

PERIODIC SERVICE

Fuel Filter Cartridge Replacement

ENGINE OIL

Checking Oil Level and Adding Oil

ENGINE OIL

Changing Engine Oil

ENGINE OIL

Replacing the Oil Filter Cartridge

RADIATOR

Checking Coolant Level and Adding Coolant

RADIATOR

Changing Coolant

RADIATOR

Coolant Decrease Remedies

Radiator Hoses and Clamp Check

Overheating Precautions

Cleaning Radiator Core (Outside)

RADIATOR

Anti-Freeze Information

AIR CLEANER

Dust Indicator (Optional)

Evacuator Valve Operation

AIR CLEANER

Cleaning Primary Air Filter Element