MTD YARD-MAN 999 User Manual

IMPORTANT: Read safety rules and instructions carefully before operating equipment.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
21-inch, 6-Speed
Lawn Mower
Models 999 & E999
PRINTED IN U.S.A.
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 368022 Cleveland, Ohio 44136-9722.
Operator’s Manual
FORM NO.
770-10076B.fm
(11/00)
ECO # 2844

MTD YARD-MAN 999 Specifications

General

Brand	MTD
Model	YARD-MAN 999
Category	Lawn Mower
Language	English

Summary

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

General Operation and Safety Rules

Covers essential safety practices for operating the mower, including user responsibilities.

Slope and Children Safety

Guidelines for safe mowing on slopes and precautions to keep children away from the mower.

Service and Maintenance Safety

Safety measures for handling gasoline and performing basic maintenance tasks.

SECTION 2: SLOPE GAUGE

Understanding Slope Safety

Guide on using the slope gauge to determine safe mowing areas and safe operating practices on slopes.

SECTION 3: ASSEMBLING YOUR LAWN MOWER

Unpacking and Initial Setup

Steps for unpacking the mower, identifying parts, and preparing for assembly.

Handle Assembly and Cable Routing

Instructions for attaching handles, securing them, and managing control cables.

SECTION 4: KNOW YOUR LAWN MOWER

Mower Control Overview

Identification and function of key controls like levers, handles, and starters.

Drive, Speed, and Caster Controls

Explanation of drive clutch, shift lever, and caster lock operations for maneuverability.

SECTION 5: OPERATING YOUR LAWN MOWER

Fueling and Starting Procedures

Instructions for filling gas/oil, battery charging, and engine start using electric or recoil methods.

Stopping, Adjustments, and Grass Handling

Procedures for stopping the mower, performing a neutral test, locking casters, and bagging clippings.

SECTION 6: MAKING ADJUSTMENTS

Cutting Height and Mowing Techniques

How to adjust cutting height and tips for mulching and general rotary mowing practices.

Handle Height and Cable Adjustments

Adjusting handle position and drive/shift control cables for optimal operation.

SECTION 7: MAINTAINING YOUR LAWN MOWER

Engine and Cutting Deck Maintenance

Procedures for engine care, air filter service, and cleaning the cutting deck.

Lubrication Points

Guide to lubricating moving parts on the mower, including blade control, wheels, and casters.

SECTION 8: SERVICING YOUR MOWER

Battery and Fuse Service

Instructions for replacing the battery pack and checking the in-line fuse for electric start units.

Replacing the Drive Belt

Step-by-step instructions for safely removing and replacing the mower's drive belt.

SECTION 9: OFF-SEASON STORAGE

Storage Preparation and Care

Steps for cleaning, lubricating, and properly storing the mower for the off-season.

SECTION 10: TROUBLE SHOOTING GUIDE

Common Mower Problems and Solutions

Guide to diagnose and fix issues like starting problems, erratic running, and uneven cuts.

Decorative & Safety Labels

Label Identification and Purpose

Visual guide to all safety and decorative labels found on the mower and their meanings.

SECTION 11: PARTS LIST FOR MODELS 999 & E999

Illustrated Parts Breakdown

Diagram of mower components with reference numbers for identification.

Component Part Number Reference

Detailed list of part numbers for mower components and assemblies.

Model E999 Parts Diagram

E999 Component Breakdown

Illustrated parts breakdown specific to the E999 model.

E999 Part Identification List

Detailed list of part numbers for Model E999.

Model 999 Parts Diagram

999 Component Breakdown

Illustrated parts breakdown specific to the 999 model.

999 Part Identification List

Detailed list of part numbers for Model 999.

Multi-Speed Pulley Assembly

Pulley Assembly Parts and Diagram

Illustrated breakdown and part numbers for the multi-speed pulley assembly.

Transmission Assembly

Transmission Parts and Diagram

Illustrated breakdown and part numbers for the transmission assembly.

MANUFACTURER'S LIMITED WARRANTY

Warranty Terms and Service Procedures

Details on warranty coverage, exclusions, and how to obtain service.