john deer LA155 User Manual (English)

Questions and Answers:

S
Stacey JonesSep 1, 2025
Why john deer LA155 vibrates too much?
- T
  tcisnerosSep 1, 2025
  Excessive vibration or rattling in your John Deer Tractor can be attributed to several factors. The attachment drive belts may be worn or damaged, or the traction drive belt could be damaged or worn. Dirt on the drive sheaves or blades that are bent or out of balance can also cause these issues. Consider replacing the worn or damaged attachment drive belts, replacing the damaged or worn traction drive belt, cleaning the drive sheaves, and repairing or balancing the blades.
P
perrycoreyAug 30, 2025
What causes poor engine performance in John Deer Tractor?
- A
  Allen WareAug 30, 2025
  Poor engine performance in your John Deer Tractor can be caused by dirt in the fuel system or old fuel. Replace the fuel with fresh stabilized fuel. It is also recommended to obtain fuel from another supplier before suspecting machine problems. Suppliers blend fuels differently, and changing suppliers will generally solve any performance problems. Fuel blended with alcohol or ether may contribute to performance problems by causing gum and varnish deposits, especially if fuel is stored for several weeks or more. Obtain fresh fuel.
T
thomashaydenAug 29, 2025
Why does my john deer LA155 engine backfires?
- J
  James RiggsAug 29, 2025
  Your John Deer Tractor engine might backfire due to a faulty spark plug, so replace it. Also, ensure the operator is seated, as raising off the seat can cause backfiring.
S
Sara BonillaAug 27, 2025
Why John Deer Tractor starter does not work?
- Z
  zhawkinsAug 27, 2025
  If the starter on your John Deer Tractor isn't working or turning the engine, the brake pedal may not be depressed, or the mower might be engaged. Ensure the brake pedal is depressed and the mower is disengaged. Corroded battery terminals or a discharged battery could also be the cause, so clean the battery terminals and charge the battery. A blown fuse can also prevent the starter from working, so replace the blown fuse. If the fusible link in the starting circuit is blown, consult your authorized dealer.
M
Mia CareyAug 26, 2025
What to do if john deer LA155 Tractor engine overheats?
- L
  Lacey MayAug 26, 2025
  If your John Deer Tractor engine is overheating, check the engine air intake screen and clean it if it's plugged. Also, clean the cooling fins. Ensure the engine oil level is correct, adjusting if it's too low or too high. Avoid operating the engine for extended periods at a slow idle speed.
L
lcarneyAug 25, 2025
Why does my john deer LA155 Tractor engine lose power?
- R
  rhodesmarcusAug 25, 2025
  Your John Deer Tractor engine may be losing power due to several reasons: the engine might be overheating, there could be too much oil in the engine, the air cleaner might be dirty, or the spark plug could be faulty. Also, the travel speed might be too fast for the conditions, or you might be using the improper fuel. In order to solve this problem you should check the engine cooling system, check and adjust oil level, clean or replace air cleaner, replace the faulty spark plug, reduce travel speed, and use proper fuel type.
R
Ruth DeleonAug 23, 2025
What to do if john deer LA155 Tractor engine will not start?
- D
  daniellesmithAug 23, 2025
  If your John Deer Tractor engine won't start, make sure the brake pedal is depressed and the mower is disengaged. Check that the spark plug wire is securely connected and that you're using the correct fuel type. Also, inspect the fuel filter and clean or replace it if it's plugged. Finally, check the safety switch and replace it if it's defective. If these steps don't resolve the issue, refer to the Electrical Troubleshooting Section.

john deer LA155 Specifications

General

Brand	john deer
Model	LA155
Category	Tractor
Language	English

Summary

Introduction

Using Your Operator's Manual

Guidance on how to effectively use the operator's manual.

Special Safety Messages

Highlights special messages for safety and machine care.

Product Identification

Record Product Identification Numbers

Instructions for recording machine and engine identification numbers.

Register Product and Warranty Online

Process for registering product and warranty via the internet.

Safety Labels

Understanding Machine Safety Labels

Explains the meaning of DANGER, WARNING, and CAUTION safety alerts.

Safety

Safe Operation Practices

Essential safety guidelines for operating the machine.

Parking Safely

Steps for safely parking the machine.

Protecting Children Around the Machine

Safety precautions to keep children safe from the machine.

Avoiding Machine Tipping

Guidance on operating on slopes to prevent tipping.

Assembly

Safe Fuel Handling Procedures

Critical steps for safely handling fuel.

Charge and Connect Battery

Procedure for safely charging and connecting the battery.

Adjusting Mower Deck Level

Steps to ensure the mower deck is properly leveled.

Testing Machine Safety Systems

Verifying the functionality of the machine's safety interlock circuits.

Operating Controls

Operator Station Controls (LA105)

Identification of controls on the operator station for LA105 model.

Operator Station Controls (LA115, LA125, LA135)

Identification of controls on the operator station for LA115, LA125, LA135.

Operator Station Controls (LA145, LA155, LA165, LA175)

Identification of controls on the operator station for LA145, LA155, LA165, LA175.

Operating

Daily Operating Checklist

A checklist of essential items before operating the machine.

Adjusting Cutting Height

Procedure for setting the desired grass cutting height.

Adjusting Mower Deck Level

Steps to ensure the mower deck is correctly leveled for optimal cutting.

Testing Machine Safety Systems

Verifying the functionality of the machine's safety interlock circuits.

Operating

Testing Seat Switch

Procedures to test the operator presence seat switch.

Using the Park Brake

Instructions on how to lock and unlock the park brake.

Starting the Engine

Step-by-step procedure for starting the engine.

Stopping the Engine Safely

Recommended procedure for safely stopping the engine.

Operating

Using Travel Controls on Automatic Transmission

How to operate travel controls on automatic transmission models.

Using The Reverse Implement Option (RIO)

Procedure for using the RIO feature.

Engaging and Disengaging Mower

Procedure for engaging and disengaging the mower deck.

Using Mulch Cover

Instructions for installing and using the mulch cover.

Operating

Moving Machine by Hand

Instructions for safely moving the machine manually.

Checking for Plugging While Driving

How to identify and check for plugged mower components.

Using Weights

Information on using weights for stability and traction.

Using Accessories

General information on using various machine accessories.

Service Intervals

Routine Service Intervals

Schedule for performing regular maintenance on the machine.

Mowing Tips for Best Cut Quality

Tips for achieving optimal lawn cut quality and appearance.

Service Lubrication

Lubricating the Front Axle

Procedure for lubricating the front axle components.

Lubricating Mower Deck Pivot Points

How to lubricate the mower deck pivot points.

Service Engine

Checking Engine Oil Level

Procedure for checking the engine oil level.

Avoiding Engine Fumes

Safety precautions regarding engine exhaust fumes.

Changing Engine Oil and Filter

Step-by-step guide for changing engine oil and filter.

Cleaning Air Intake Screen and Engine Fins

Procedure for cleaning engine air intake and cooling fins.

Service Engine

Cleaning Air Cleaner Elements (LA105, LA115)

Procedure for checking and cleaning air cleaner elements.

Cleaning Air Cleaner Elements (LA135, LA145)

Procedure for checking and cleaning air cleaner elements.

Cleaning Air Cleaner Elements (LA125)

Procedure for checking and cleaning air cleaner elements.

Cleaning Air Cleaner Elements (LA155, LA165, LA175)

Procedure for checking and cleaning air cleaner elements.

Service Engine

Checking Spark Plugs

Procedure for inspecting and checking spark plugs.

Service Transmission

Checking the Transmission

Information on the sealed transmission component.

Replacing Mower Drive Belt (48/54 in. Decks)

Procedure for replacing the mower drive belt on larger decks.

Service Mower

Removing the Mower Deck

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

Installing the Mower Deck

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

Replacing Mower Drive Belt (42 in. Deck)

Procedure for replacing the mower drive belt on the 42 in. deck.

Adjusting Mower Belt Tension (42 in. Deck)

Procedure for adjusting mower belt tension on the 42 in. deck.

Service Mower

Adjusting Spindle Brakes (42 in. Deck)

Procedure for adjusting spindle brakes on the 42 in. deck.

Checking for Bent Mower Blades

Procedure to check if mower blades are bent.

Service Electrical

Servicing Mower Blades

General guidelines for servicing mower blades.

Balancing Blades

Procedure for balancing mower blades for proper operation.

Servicing the Battery Safely

Safety precautions for working with the battery.

Removing and Installing Battery

Steps for safely removing and installing the battery.

Service Miscellaneous

Using Proper Fuel

Recommendations for fuel type and octane rating.

Filling the Fuel Tank

Procedure for safely filling the fuel tank.

Front Wheel Assembly: Removal and Installation

Steps for removing and installing the front wheel assembly.

Rear Wheel Assembly: Removal and Installation

Steps for removing and installing the rear wheel assembly.

Troubleshooting

Using the Troubleshooting Chart

Guide on how to use the troubleshooting chart.

Troubleshooting Engine Issues

Common engine problems and their potential causes.

Troubleshooting Electrical Issues

Common electrical problems and their potential causes.

Troubleshooting Tractor Issues

Common tractor system problems and their potential causes.

Storage

Storage Safety Precautions

Safety guidelines for storing the machine.

Preparing Machine for Storage

Steps to prepare the machine for long-term storage.

Specifications

Engine Specifications

Technical data related to the engine.

Automatic Model LA115 Specifications

Technical specifications for the LA115 automatic model.

Automatic Model LA125 Specifications

Technical specifications for the LA125 automatic model.

Machine Dimensions

Specifications for the physical dimensions of the machine.

Specifications

Tire Specifications

Technical data for tires, including size and pressure.

Mower Deck Specifications (42 in.)

Technical data for the 107 cm (42 in.) mower deck.

Warranty

Product Warranty Overview

General information about the John Deere product warranty.

Emissions Control System Warranty (CA/US EPA)

Warranty statement for emissions control systems on small off-road engines.

Owner's Warranty Responsibilities

Owner's duties for maintaining warranty coverage.

Getting Quality Service

Ordering John Deere Parts

Guidance on identifying and ordering John Deere parts.

Obtaining Service Literature

Information on how to get Parts Catalogs or Technical Manuals.

Key Part Numbers

List of common part numbers for kits, blades, and belts.

Service Record

Service Record Log

A log for recording routine maintenance dates and services performed.

Related product manuals

john deer LA155 User Manual

Table of Contents

Questions and Answers:

john deer LA155 Specifications

Summary

Introduction

Using Your Operator's Manual

Special Safety Messages

Product Identification

Record Product Identification Numbers

Register Product and Warranty Online

Safety Labels

Understanding Machine Safety Labels

Safety

Safe Operation Practices

Parking Safely

Protecting Children Around the Machine

Avoiding Machine Tipping

Assembly

Safe Fuel Handling Procedures

Charge and Connect Battery

Adjusting Mower Deck Level

Testing Machine Safety Systems

Operating Controls

Operator Station Controls (LA105)

Operator Station Controls (LA115, LA125, LA135)

Operator Station Controls (LA145, LA155, LA165, LA175)

Operating

Daily Operating Checklist

Adjusting Cutting Height

Adjusting Mower Deck Level

Testing Machine Safety Systems

Operating

Testing Seat Switch

Using the Park Brake

Starting the Engine

Stopping the Engine Safely

Operating

Using Travel Controls on Automatic Transmission

Using The Reverse Implement Option (RIO)

Engaging and Disengaging Mower

Using Mulch Cover

Operating

Moving Machine by Hand

Checking for Plugging While Driving

Using Weights

Using Accessories

Service Intervals

Routine Service Intervals

Mowing Tips for Best Cut Quality

Service Lubrication

Lubricating the Front Axle

Lubricating Mower Deck Pivot Points

Service Engine

Checking Engine Oil Level

Avoiding Engine Fumes

Changing Engine Oil and Filter

Cleaning Air Intake Screen and Engine Fins

Service Engine

Cleaning Air Cleaner Elements (LA105, LA115)

Cleaning Air Cleaner Elements (LA135, LA145)

Cleaning Air Cleaner Elements (LA125)

Cleaning Air Cleaner Elements (LA155, LA165, LA175)

Service Engine

Checking Spark Plugs

Service Transmission

Checking the Transmission

Replacing Mower Drive Belt (48/54 in. Decks)

Service Mower

Removing the Mower Deck

Installing the Mower Deck

Replacing Mower Drive Belt (42 in. Deck)

Adjusting Mower Belt Tension (42 in. Deck)

Service Mower

Adjusting Spindle Brakes (42 in. Deck)

Checking for Bent Mower Blades

Service Electrical

Servicing Mower Blades

Balancing Blades

Servicing the Battery Safely