Exmark SD270SB20 - User Manual

Questions and Answers

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Sarah HebertAug 3, 2025
What to do if my Exmark Seeders engine will not start?
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  Mr. Cole FrankAug 3, 2025
  If your Exmark Seeders engine won't start, starts with difficulty, or doesn't stay running, there are several potential causes: * The fuel tank may be empty, so you should fill it. * The fuel shutoff valve might be closed; in that case, open it. * The fuel filter could be dirty and needs replacement. * The air cleaner might be dirty, requiring cleaning or replacement of the air cleaner element. * The spark plug could be faulty, so clean, adjust, or replace it. * The spark plug wire might not be connected; check its connection.
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Logan LoweAug 8, 2025
Why does my Exmark Seeders engine lose power?
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  Kathleen StarkAug 8, 2025
  If your Exmark Seeders engine loses power, consider the following: * The engine load might be excessive. Try reducing the ground speed or slicing depth. * A dirty air cleaner can cause power loss. Clean or replace the air cleaner element. * Low oil level in the crankcase can be a factor. Add oil to the crankcase. * A dirty fuel filter can cause power loss. Replace the fuel filter.
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erica56Aug 13, 2025
Why is my Exmark SD270SB20 Seeders engine overheating?
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  toddramosAug 13, 2025
  If your Exmark Seeders engine overheats, several factors could be responsible: * The engine load may be too high. Reduce the ground speed or slicing depth. * The oil level in the crankcase might be low. Add oil to the crankcase. * Cooling fins and air passages could be blocked. Remove any obstructions from these areas.
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Sarah BrownAug 18, 2025
What to do if my Exmark SD270SB20 Seeders machine does not drive?
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  lvalenzuelaAug 18, 2025
  If the Exmark Seeders machine does not drive, it might be due to: 1. A worn, loose, or broken drive or pump belt. In this case, change the belt. 2. A drive or pump belt that has come off a pulley. Change the belt. 3. A low transmission oil level. Add hydraulic oil to the transmission. 4. A self-propel cable that needs adjustment or is broken. Adjust or replace the cable.
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Adam Mack IIIAug 23, 2025
How to fix Exmark Seeders that pulls left or right?
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  Sharon MooreAug 23, 2025
  If your Exmark Seeders machine pulls to the left or right, the tire pressure in the drive tires may not be correct. Adjust the tire pressure in the drive tires to resolve this issue.
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Kristen GarciaAug 28, 2025
What causes abnormal vibration in Exmark Seeders?
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  Rachel MillerAug 28, 2025
  Abnormal vibration in your Exmark Seeders can be caused by: * Bent blade(s). Install new blade(s). * Loose engine mounting bolts. Tighten the engine mounting bolts. * Loose engine pulley or idler pulley. Tighten the appropriate pulley. * Damaged belt. Install new belt.

Summary

Introduction

Safety

Safety Alert Symbol

Identifies important safety messages to avoid accidents.

Safe Operating Practices

Guidance on training, preparation, and safe operation procedures.

Safety and Instructional Decals

Specifications

Model Numbers

Details the model identification numbers for the equipment.

Systems

Information on engine, fuel, and transmission systems.

Tires and Wheels

Specifications for the tires and wheels used on the machine.

Dimensions

Provides the overall width, length, and height of the unit.

Torque Requirements

Specifies torque values for various bolts and nuts.

Product Overview

Setup

Instructions for assembling and setting up the machine handle.

Operation

Controls

Details the location and function of all machine controls.

Park Brake Lever

Instructions on engaging and disengaging the parking brake.

Drive Wheel Release Lever

Explains how to release drive wheels for manual movement.

Pre-Start

Pre-operation checks and preparations before starting the engine.

Operating Instructions

Steps for opening fuel valve and starting the engine.

Stopping the Engine

Procedures for safely stopping the engine and the unit.

Operating the Self-Propel Drive

How to control forward and reverse movement of the machine.

Operating the Blade Control Lever

How to engage and disengage the cutting blades.

Operating the Slicer Seeder

Steps for seeding operations and using the slicing function.

Adjusting the Cutting Blade Depth

Procedure for setting the desired cutting depth of the blades.

Adjusting the Seeding Rate Gauge

How to set the seed flow rate for different grass types.

Operating Tips

Advice on over seeding, dethatching, and power raking.

Transporting a Unit

Guidelines and warnings for safely transporting the machine.

Maintenance

Recommended Maintenance Schedule(s)

Schedule outlining maintenance tasks and service intervals.

Periodic Maintenance

Covers routine checks like engine oil and blade condition.

Check Engine Oil Level

Procedure for checking the engine oil level before each use.

Check the Blades

Procedure for inspecting blades for wear or damage.

Check for Loose Hardware

Procedure for inspecting and tightening fasteners.

Service Air Cleaner

Instructions for cleaning and replacing air cleaner elements.

Change Engine Oil

Steps for draining and refilling the engine oil.

Check Condition Of Belts

How to inspect drive belts for wear or damage.

Lubricate Grease Fittings

Procedure for lubricating grease fittings on the machine.

Check Spark Plugs

Steps for checking, gapping, and replacing spark plugs.

Change Hydraulic Transmission Filters and Fluid

Procedure for changing hydraulic fluid and filters.

Check Spark Arrester (if equipped)

Instructions for inspecting the spark arrester for damage or plugging.

Check the Seed Gate

Procedure to verify the seed gate moves freely and is clear.

Thread Locking Adhesives

Information on thread locking adhesives used on fasteners.

Emptying the Fuel Tank

Steps for safely draining the fuel tank.

Adjustments

General note and procedure for adjusting machine settings.

Adjusting the Self-Propel Drive

Procedure to adjust the self-propel drive for proper operation.

Adjusting the Self-Propel Drive Belt Tension

How to adjust the drive belt tension to prevent squealing.

Adjusting the Seed Gate Closed Position

Procedure to ensure the seed gate closes properly.

Cleaning

General instructions for cleaning the machine components.

Clean Engine and Exhaust System Area

Procedure to clean debris from the engine and exhaust areas.

Clean Debris Build-Up Under Unit

Instructions for cleaning debris from beneath the machine.

Cleaning Under the Belt Cover

Procedure for cleaning debris from under the belt cover.

Cleaning the Seed Gate

Instructions for cleaning the seed gate assembly.

Waste Disposal

Guidance on proper disposal of used engine oil.

Troubleshooting

Exmark Commercial Equipment 1 Year Limited Warranty

Conditions and Products Covered

Details the conditions and products covered under the limited warranty.

Warranty Exceptions

Lists items and conditions not covered by the warranty.

Items and Conditions Not Covered

Exclusions from warranty coverage, including normal wear and tear.

Instructions for Obtaining Warranty Service

How to get warranty service, including contact information.

Owners Responsibilities

Outlines the owner's responsibilities for maintenance and operation.

General Conditions

General terms and limitations of the Exmark warranty.

EXMARK ACCESSORIES AND OPTIONS

MID-MOUNT RIDING ACCESSORIES AND OPTIONS

List of optional accessories for mid-mount riding equipment.

OUT-FRONT RIDING ACCESSORIES AND OPTIONS

List of optional accessories for out-front riding equipment.

WALK-BEHIND ACCESSORIES AND OPTIONS

List of optional accessories for walk-behind equipment.

Exmark SD270SB20 Specifications

General

Brand	Exmark
Model	SD270SB20
Category	Seeders
Language	English