Kubota M5660SUHD - User Manual

Questions and Answers

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Samantha ShawAug 18, 2025
What to do if Kubota M5660SUHD Tractor engine overheats?
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  Christopher LawrenceAug 18, 2025
  If your Kubota Tractor engine overheats, several factors could be responsible. First, the engine may be overloaded, so shift to a lower gear or reduce the load. Second, the coolant level might be low, so fill the cooling system to the correct level and inspect the radiator and hoses for leaks. A loose or defective fan belt could also be the cause, requiring adjustment or replacement. Additionally, a dirty radiator core or grille screens can restrict airflow; remove any trash. Finally, the coolant flow route may be corroded, necessitating a flush of the cooling system.
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Kaitlyn CamposAug 29, 2025
Why are exhaust fumes colored on my Kubota Tractor?
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  Elizabeth LuceroAug 29, 2025
  Colored exhaust fumes from your Kubota Tractor can indicate different issues. Black fumes suggest poor fuel quality, too much oil, or a clogged air cleaner. In this case, change the fuel and fuel filter, check the oil level, and clean or replace the air cleaner element. Blue-white fumes may indicate fuel in the exhaust muffler, injection nozzle trouble, or poor fuel quality. Check the intake air heater function in cold weather, heat the muffler by applying load to the engine, inspect the injection nozzle, and change the fuel and fuel filter.
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Craig BrownNov 7, 2025
Why is my Kubota M5660SUHD engine difficult to start?
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  adrienneaguirreNov 7, 2025
  There could be several reasons why your Kubota Tractor engine is hard to start. It might be due to no fuel flow, so check the fuel tank and fuel filter, replacing the filter if needed. Air or water in the fuel system could also be the culprit; ensure the fuel line coupler bolt and nut are tight and bleed the fuel system. In cold weather, the oil viscosity can increase, slowing the engine revolution; consider using oils of different viscosities or an engine block heater. A weak battery can also prevent the engine from turning over quickly enough; clean the battery cables and terminals, charge the battery, and in cold weather, remove the battery, charge it, and store it indoors until use. Finally, there might be an issue with the intake air heater system; check the slow blow fuse and ensure ...

Summary

SAFE OPERATION

Pre-Operation and General Use Safety

Covers pre-operation, basic operation, child safety, slopes, road, and parking rules.

Component Safety and Labels

SPECIFICATIONS

Technical Specifications

INSTRUMENT PANEL AND CONTROLS

Control Panel Overview

Instruments, indicators, and hand/foot controls layout and function.

Foot and Hand Controls

PRE-OPERATION CHECK

Daily Inspection Procedures

Essential daily checks before starting tractor operation.

OPERATING THE ENGINE

Engine Operation and DPF System

Starting, stopping, warm-up, exhaust, DPF regeneration, and warnings.

PTO

PTO Operation and Controls

3-POINT HITCH & DRAWBAR

3-Point Hitch System and Adjustments

HYDRAULIC UNIT

Hitch Control Systems

Remote Hydraulic Control System

Operation, connection, and reference chart for remote hydraulics.

TIRES, WHEELS AND BALLAST

Tire and Wheel Specifications

MAINTENANCE

Service Intervals Schedule

Recommended maintenance tasks based on operating hours.

Lubricants, Fuel, and Coolant

Specifications for fluids and lubricants.

PERIODIC SERVICE

Daily Checks and Inspections

Regular Maintenance and Replacements

Troubleshooting Engine and Power Train

STORAGE

TROUBLESHOOTING

Engine Troubleshooting

Power Train Troubleshooting

Kubota M5660SUHD Specifications

General

Engine Power	56 hp
Engine Type	Diesel
Hydraulic System	Open Center
Fuel Type	Diesel
Drive	4WD
Cylinders	4
Displacement	148.5 ci
Horsepower	56 hp
Hydraulic System Type	Open Center
Lift Capacity at 24 Inches	2, 315 lbs
Type	Tractor
3-Point Hitch Category	I