Yard Machines 600 SERIES Specifications download pdf (Page 95)

Electrical

Introduction

This chapter is divided into four sections:

• Section 1: About this chapter and precautions

• Section 2: Components

• This section will describe the location and operation of the electrical components on the mower. Where

appropriate, some disassembly or component removal instructions will be included.

• Section 3: Diagnostic Techniques

• This section will cover basic tools, techniques, and methodology for diagnosing electrical issues on the

mower. A lot of the information in this section can be applied to other equipment.

• Section 4: Schematics

Components

Since the early 80’s all MTD tractors have been equipped with safety switches to prevent the tractor from mowing

in reverse. This was done in response to children being run over by lawn mowers. In 2005 the

American National

Standards Institute (ANSI)

issued a standard preventing all lawn tractors from mowing in reverse, however it did

allow for an operator controlled over-ride system.

There are three different electrical systems that have been use on the 700 series tractor. They are:

• Standard electrical system

• 7-pin Operator-Controlled Reverse System (OCR).

• 8-pin Operator-Controlled Reverse System (OCR)

NOTE: Both of the OCR’s used on the 700 are the same as the 600 series tractors.

The standard electrical system is basically the same system that has been used since the 80’s. There are no

electronics in the standard system.

! CAUTION! CAUTION

Before disconnecting any electrical component, take precautions to prevent the component

or the wires attached to it from shorting out. The most effective means of doing this is to dis-

connect the battery ground cable from the negative battery terminal. Unless performing

tests that require the electrical system to be in operation, disconnect the negative cable

from the battery before doing any work to the electrical system of the mower.

CHAPTER 7: ELECTRICAL SYSTEM

For Parts Call 606-678-9623 or 606-561-4983

www.mymowerparts.com

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Yard Machines 600 SERIES Specifications Page 95