LS tractor MT125 - User Manual

Questions and Answers

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John Chapman DDSAug 26, 2025
Why is the engine power low on my LS tractor?
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  Sean SchroederAug 27, 2025
  If the engine power of your LS tractor is low, here are several possible causes and solutions: * The injection nozzle may be clogged: repair the nozzle. * Carbon may be piled to the valve seat: repair the valve seat. * There may be bad adjustment of the valve gap: repair the valve gap. * There may be bad injection timing: repair the injection timing. * There may be a lack of fuel supply: check the fuel system. * The air cleaner may be clogged: clean or replace the air cleaner.
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Jackson AndersonAug 27, 2025
What to do if my LS tractor engine stops suddenly during operation?
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  walkerdwayneAug 27, 2025
  If the engine of your LS tractor stops suddenly during operation, consider these potential causes: * Fuel shortage: add fuel and bleed air. * Fault of nozzle: repair or replace the nozzle. * Moving parts failure due to bad lubrication: repair the moving parts.
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Michael PrinceAug 27, 2025
Why is the battery charging indicator ON during operation of my LS tractor?
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  Charles JacksonAug 28, 2025
  If the battery charging indicator is ON during operation of your LS tractor, it may be due to: * Bad electrical connection: check battery terminals, ground, and repair. * Fault of alternator: repair or replace the alternator. * Fault of battery: replace the battery. * Bad fan belt tension or broken: adjust belt tension or replace.
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Mark FletcherAug 28, 2025
Why is the engine revolution irregular on my LS tractor?
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  lewisangelaAug 28, 2025
  If the engine revolution of your LS tractor is irregular, it could be due to: * Air in the fuel system: bleed air. * Fuel filter clogged: clean or replace the filter. * Injection nozzle clogged: repair or replace. * Fuel leakage: repair the leakage. * Irregular fuel injection: repair the fuel injection.
C
Craig AlexanderAug 29, 2025
Why is the color of exhausted smoke black from my LS tractor?
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  Andrew KellyAug 29, 2025
  If the color of exhausted smoke from your LS tractor is black, it could be due to: * Bad quality of fuel: use good quality fuel. * Over fuel supply: repair the fuel supply system. * Fault of nozzle: repair the nozzle.
T
Timothy WrightAug 30, 2025
Why is the engine oil pressure indicator ON during operation of my LS tractor?
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  sandra63Aug 30, 2025
  If the engine oil pressure indicator is ON during operation of your LS tractor, it could indicate: * Lack of engine oil: supplement the oil. * Low viscosity of engine oil: replace with the proper oil viscosity. * Pressure switch error: replace the switch. * Fault of oil pump: repair the oil pump. * Engine oil filter clogged: replace the filter.
B
brianwellsAug 23, 2025
What to do if the start motor does not turn when turning the key switch on my LS tractor?
- R
  Richard CarpenterAug 23, 2025
  If the start motor of your LS tractor doesn't turn when you turn the key, there are several potential causes: * The start safety switch may not be contacted: fully depress the clutch pedal. * The PTO switch may not be in the “OFF” position: place the PTO switch in the “OFF” position. * The battery may be discharged: charge or replace the battery. * A terminal may be loosened: tighten the terminal. * There may be a key switch failure: repair or replace the key switch. * There may be a start motor failure: repair or replace the start motor.
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Preston MartinSep 1, 2025
Why is the color of exhausted smoke white from my LS tractor?
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  Nicholas DaviesSep 1, 2025
  If the color of exhausted smoke from your LS tractor is white, consider the following causes: * Air cleaner clogged: clean element or replace. * Engine oil exceeded: adjust to the proper level. * Lack of fuel supply: repair the fuel supply.
S
Steven RiversSep 2, 2025
What to do if the linkage does not move up on my LS tractor?
- B
  Bonnie SummersSep 2, 2025
  If the linkage on your LS tractor does not move up, it could be due to: * Lack of transmission oil: add oil. * Air in the suction pipe: tighten the filter or replace the seal of connecting part. * Hydraulic filter clogged: clean the filter or replace it. * Hydraulic pump failure: repair or replace the pump. * Control valve failure: repair or replace the valve. * Cylinder or cylinder related parts broken: repair or replace.
J
Jennifer WhiteSep 3, 2025
Why is the HST power too low on my LS tractor?
- A
  aromeroSep 3, 2025
  If the HST power on your LS tractor is too low, consider the following: * Oil shortage: add oil. * Air in HST circuit: check and repair the hydraulic suction line. * Transmission oil temperature is too high: stop engine to cool the oil, and restart. * HST moving part worn: repair or replace. * HST filter clogged: replace the filter.

Summary

General Notices for Safety

1-1. Before Using the Tractor

1-2. Safety Precautions

Detailed safety instructions covering operator, clothing, and general warnings.

Instruction for Safe Operation

Seat Belt and Safety Device Usage

Roll-Over Protective Structure (ROPS)

Information on the foldable safety frame (Roll-bar) and its proper use and folding procedure.

Instruments and Controls

3-1. Instrument Panel & Front Controls Overview

Overview of the tractor's instrument panel and front-mounted controls.

Instrument Panel Indicators and Gauges

Tractor Operation Levers and Pedals

Operation of PTO switch, brake, parking brake, throttle, and HST pedals.

Range Gear, 4 WD, PTO Select, and Differential Lock

3-3. Hydraulic System Operation

Safety precautions and operation of the hydraulic system and steering.

Hydraulic Lift and Loader Controls

Operation and Work

4-1. Engine Start and Stop Procedures

Step-by-step instructions for starting and stopping the tractor engine.

4-2. Driving and Stopping the Tractor

Instructions on how to drive and stop the tractor safely.

4-4. Attaching Implements and PTO Shaft

Front-end Loader Operation

Lubrication and Maintenance

5-1. Access for Maintenance

5-2. Maintenance Chart

A chart outlining periodic maintenance tasks and their intervals.

5-3. Lubricants and Capacity

Recommended lubricants, their capacities, and international standards.

5-4. First 50 Hour Check

Specific checks and maintenance tasks to be performed after the first 50 hours of operation.

5-5. Daily Checks Before Starting

Daily checks to perform before starting the tractor engine to prevent failures.

5-6. Every 50 Hour Check

5-7. Every 250 Hour Check

5-8. Every 500 Hour Check

5-9. Every 1000 Hour Check

5-10. Every 1500 Hour Check

5-11. Every 2000 Hour or 2-Year Check

5-12. General Maintenance (When Required)

5-13. Troubleshooting

Common faults, possible causes, and solutions for tractor issues.

Dimension and Specification

Model Specifications (MT122;MT125)

PTO and Hydraulic Lift Specifications

Lubricants and Capacity Details

Detailed table of lubricants, capacities, and recommended products.

LS tractor MT125 Specifications

General

Engine Power	24.7 HP
Transmission	Hydrostatic
Drive	4WD
Transmission Speeds	Infinite (2-range)
PTO Speed	540 RPM
Hydraulic System	Open center
3-Point Hitch	Category I
Tire Size (Front)	18x8.5-10
Tire Size (Rear)	26x12-12
Engine Type	Diesel
Fuel Capacity	6.6 gal