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White Outdoor 393 - User Manual

White Outdoor 393
20 pages
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Front Tine Tiller
Model 393
OPERATOR’S MANUAL
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-
covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.
In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.
PRINTED IN U.S.A.
FORM NO.
769-01619.fm
(12/04)

Table of Contents

Questions and Answers

  • M
    Michael VangJul 26, 2025
    Why won't my White Outdoor 393 Tiller start?
    • J
      Jesus DavisJul 26, 2025
      Your White Outdoor Tiller might not start due to several reasons: the fuel tank could be empty or contain stale fuel—fill it with fresh gasoline, using a fuel stabilizer if storing for more than 30 days. The throttle control lever might be in the wrong position; move it to the start position. A clogged fuel line could also be the culprit—clean the fuel line. Ensure the switch is in the ON position and the spark plug wire is connected. Lastly, the spark plug might be dirty; clean, adjust the gap, or replace it.
  • L
    Lisa SmallAug 2, 2025
    What to do if my White Outdoor 393 Tiller engine runs erratically?
    • R
      Ryan LarsonAug 2, 2025
      If your White Outdoor Tiller engine is running erratically, there are several possible causes. Ensure the choke lever is in the OFF position, as running on CHOKE can cause this issue. Check the spark plug wire to make sure it is securely connected and tightened. A clogged fuel line or stale fuel could also be the problem; clean the fuel line and refill the tank with fresh gasoline, using a fuel stabilizer if storing for more than 30 days. Additionally, a plugged vent or dirt in the fuel system might be the cause; clear the vent and drain/refill the fuel tank.
  • O
    Oscar FrancoAug 9, 2025
    Why is my White Outdoor 393 engine overheating?
    • C
      caitlynharrisonAug 9, 2025
      Your White Outdoor Tiller engine might be overheating because the oil level is low; fill the crankcase with the proper oil. Another potential cause is a dirty air cleaner. Also, the carburetor might not be adjusted properly; adjust the carburetor as instructed in the separate engine manual.
  • C
    christensendaleAug 18, 2025
    How to fix tines that won't engage on my White Outdoor 393?
    • R
      Renee HernandezAug 18, 2025
      If the tines on your White Outdoor Tiller are not engaging, check for a foreign object lodged in the tines and dislodge it. Also, check for missing clevis pins and replace them if necessary. Other possible causes are: belt and idler not in correct adjustment (take unit to authorized service dealer), control cable not adjusted properly (adjust control cable - see assembly instructions), or a worn/stretched belt (replace belt).

Summary

Safe Operation Practices

Operator Training and Supervision

Guidelines for operator training and supervision.

Pre-Operation Safety Checks

Ensuring the area is clear and wearing appropriate attire.

General Operation Safety

General safety rules to follow during operation.

User Responsibilities

User duties for safe operation and label adherence.

Tiller Assembly

Unpacking the Tiller

Steps for safely unpacking the tiller unit.

Pre-Assembly Safety

Crucial safety warning before starting assembly.

Attach Tailpiece and Depth Stake

Instructions for mounting the tailpiece and depth stake.

Attach Handle Assembly

Steps for securely mounting the main handle structure.

Attach Clutch Control Cables

Connecting forward and reverse clutch control cables.

Clutch Cable Adjustment

Verifying and adjusting clutch cable tension for proper function.

Tiller Component Identification

Throttle Control Operation

Function and location of the engine speed control lever.

Choke Lever Function

How to use the choke for cold engine starting.

Forward Tine Engagement

Engaging and disengaging the forward tines.

Reverse Tine Engagement

Engaging and disengaging the reverse tines.

Depth Stake Functionality

Role of the depth stake in controlling tilling depth.

Tines and End Caps Description

Description of tilling components and their purpose.

Tiller Operation Guide

Fueling and Oil Levels

Instructions for fueling the tiller's engine.

Starting the Engine

Step-by-step guide for engine ignition.

Stopping the Engine

Procedure for safely shutting down the engine.

General Tiller Usage

Overview of the tiller's general functions.

Wheel Position Adjustment

Adjusting wheels for optimal operating performance.

End Cap Removal

How to detach end caps for wider tilling.

Speed and Depth Control

Adjusting machine speed and working depth.

Wheel Yoke Adjustment

Modifying wheel yoke for different tilling tasks.

Depth Stake Adjustment

Setting the depth stake for precise tilling depth.

Handle Pressure for Control

Using handle pressure to adjust depth and speed.

Throttle Control Operation

Detailed use of the throttle lever for speed and stopping.

Transporting the Tiller

Moving the tiller between locations safely.

Cultivating Procedure

Using the tiller for crop maintenance and soil aeration.

Tiller Adjustments

Engine Adjustment Procedures

Referencing engine manual for adjustment instructions.

Wheel Adjustment Procedures

Referencing operating section for wheel adjustments.

Clutch Control Adjustment Procedures

Referencing assembly for clutch control tuning.

Depth Stake Adjustment Procedures

Referencing operating section for depth stake tuning.

Tine Width Adjustment

Modifying the tiller's working width.

Tiller Maintenance

Cleaning the Tine Area

Cleaning the tine shield after each use.

Belt Replacement Overview

General guidance on belt replacement procedures.

Reverse Drive Belt Replacement

Specific steps for replacing the reverse drive belt.

Forward Drive Belt Replacement

Specific steps for replacing the forward drive belt.

Engine Maintenance

Oil, air cleaner, and spark plug maintenance.

Lubrication Points

Lubricating moving parts and pivot points.

Chain Drive Maintenance

Information on the sealed chain case.

Limited Warranty Information

White Outdoor 393 Specifications

General IconGeneral
BrandWhite Outdoor
Model393
CategoryTiller
LanguageEnglish

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