Cub Cadet CC 500 EL User Manual
Professional Shop Manual
CC 500 EL
NOTE: These materials are for use by trained technicians who are experienced in the service and repair of outd oor power
equipment of the kind described in this publication, and are not intended for use by untrained or inexperienced individuals.
These materials are intended to provide supplemental information to assist the trained technician. Untrained or inexperienced individuals should seek the assistance of an experienced and trained professional. Read, understand, and follow all
instructions and use common sense when working on power equipment. This includes the contents of the product’s Operators Manual, supplied with the equipment. No liability can be accepted for any inaccuracies or omission in this publication,
although care has been taken to make it as complete and accura te as possible at the time of publication. However, du e to
the variety of outdoor power equipment and continuing product changes that occur over time, updates will be made to these
instructions from time to time. Therefore, it may be necessary to obtain the latest materials before servicing or repairing a
product. The company reserves the right to make changes at any time to this publication without prior notice and without
incurring an obligation to make such changes to previously published versions. Instructions, photographs and illustrations
used in this publication are for reference use only and may not depict actual model and component parts.
© Copyright 2007 MTD Products Inc. All Rights Reserved
MTD Products Inc. - Product Training and Education Department
FORM NUMBER - 769-03332
6/2007
Table of Contents
Chapter 1: Introduction..........................................................................................................1
Professional Shop manual intent...........................................................................................1
Assembly .............................................................................................................................1
Understanding model and serial numbers.............................................................................2
Chapter 2: Electrical System .................................................................................................3
Basics of electricity...............................................................................................................3
Electrical circuits...................................................................................................................5
Tools ....................................................................................................................................7
Components and testing techniques......................................................................................8
Chapter 3: Repair Procedures .............................................................................................13
General safety warning........................................................................................................13
Blades .................................................................................................................................13
Switch box assembly...........................................................................................................15
To replace the switch box....................................................................................................16
Motor ................................................................................................................................17
Motor mount .......................................................................................................................18
Rectifier...............................................................................................................................18
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CHAPTER 1: INTRODUCTION
INTRODUCTION
Professional Shop Manual Intent
This Manual is intended to provide service dealers with
an introduction to the electrical and mechanical
aspects of the new electric mower.
Disclaimer: This manual was written using a pilot unit.
The information contained in this manual is correct at
the time of writing. Both the product and the information about the product are subject to change without
notice.
This manual covers the newly designed th ird generation of 19” AC powered (corded) electric mowers. The
mower is to be designated 18A-182-xxx and is to be
introduced during the 2007-2008 season.
MTD Products has made two previous generations of
electric mower. The first generation was produced from
1996 to 1998. it was designated 186-407-xxx, 18A407-xxx and 18A-707-xxx. The second generation of
electric mowers were produced from 2001 to 2002. The
second generation of electric mowers shared the same
model numbers with the first generation.
The first generation of electric mowers used a bail
operated switch and the second generation used a
lever operated switch. Very few parts are interchangeable between the first and second generation mowers.
The electrical theory is the same for all three generations of electric mower. However the test procedures
will vary between the different generations. The service
procedures for the first generation of electric mower
can be found in the 1996 Service Update Seminar
Book (form number 770-8877L). The service procedures for the second generation of electric mower can
be found in the 2002 Technical Handbook (form number 770-8877S).
About the text format:
NOTE: is used to point-out information that is
relevant to the procedure, but does not fit as a
step in the procedure.
CAUTION: Indicates a potent ially hazardous situation that, if not avoided, may result in minor or
moderate injury. It may also be used to alert
against unsafe practices.
DANGER: Indicates an imminently hazardous
situation that, if not avoided, will result in death
or serious injury. This signal word is to be lim
ited to the most extreme situations.
WARNING: Indicates a potentially hazardous
situation that, if not avoided, could result in
death of serious injury.
• Bullet points: indicate sub-steps or points.
Disclaimer: This Professional Shop Manual is
intended for use by trained, professional technicians.
• Common sense in operation and safety is
assumed.
• In no event shall MTD or Cub Cadet be liable for
poor text interpretation, or poor execution of the
procedures described in the text.
• If the person using this manual is uncomfortable
with any procedures they encounter, they should
seek the help of a qualified technician or Cub
Cadet Technical Support.
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INTRODUCTION
Fasteners:
• Most of the fasteners used on the vehicle are
sized in fractional inches. Some are metric.
For this reason, wrench sizes are frequently
identified in the text, and measurements are
given in U.S. and metric scales.
• If a fastener has a locking feature that has
worn, replace the fastener or apply a small
amount of releasable thread locking compound
such as Loctite® 242 (blue).
• Some fasteners like cotter pins are single-use
items that are not to be reused. Other fasteners
such as lock washers, retaining rings, and internal cotter pins (hairpin clips) may be reused if
they do not show signs of wear or damage. This
manual leaves that decision to the judgement of
the technician.
Assembly:
Torque specifications may b e noted in the part of the
text that covers assembly or they may also be summarized in tables along with special instructions regarding
locking or lubrication. Whichever method is more
appropriate will be used. In many cases, both will be
used so that the manual is handy as a quick-reference
guide as well as a step-by-step procedure guide that
does not require the user to hunt for information.
The level of assembly instructions provided will be
determined by the complexity and of reassembly, and
by the potential for unsafe conditions to arise from mistakes made in assembl y.
Some instructions may refer t o other parts of the manual for subsidiary procedures. This avoids repeating
the same procedure two or three times in the manual.
Understanding model and serial numbers
The model number is 18A-182-710. The break d own of
what the number mean is as follows:
• 18 - - - - - - - - - indicates that this is an electric
mower
• - - A - - - - - - - - indicates the sales level
• - - - - 18 - - - - - indicates the series and trim
• - - - - - - 2 - - - - indicates it is AC powered
• - - - - - - - - 710 indicates that it is Cub Cadet
The serial number is 1J056G10005. The serial number
reads as follows:
1...........................engineering level
..J.........................month of production (J = October)
.....05....................day of the month
.........6..................last digit of the year
...........G................plant it was built in
..............1.............assembly line number
.................0005.....number of unit built
Additional technical and service information may also
be available to our company authorized service center
personnel through our company corporate offices,
regional parts distributors and regional service center
field support personnel. Please contact the de signated
support office in your area or our corporate offices
directly should further service information be needed.
Cub Cadet LLC
P.O. Box 368022
Cleveland, OH 44136
Telephone: (330) 273-8669
www.cubcadet.com
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CHAPTER 2: ELECTRICAL SYSTEM
ELECTRICAL SYSTEM
Basics of electricity
In order to diagnosis any electrical system there are
few things the technician must understand:
• Basic electrical values: voltage, current and
resistance
•Ohm’s law.
• Kirchhoff’s current law.
• Kirchhoff’s voltage law.
• How the system is wired together.
The first electrical value to be discussed is Voltage.
• Voltage is the “pressure” that electricity has. It is
the amount of force pushing electrons through a
circuit.
• This pressure is measured in volts.
• The capital letter “V” is used to represent volts.
The second electrical value is Current:
• Current is the “flow” of electricity. It is the amount
of electrons flowing in circuit.
Ohm’s law
Ohm’s law state that voltage is the product of resistance times current. It is written as V=IxR. An example
of how ohm’s law works goes like this: It takes 1 volt to
push 1 amp through a resistance of 1 ohm (1=1x1).
Ohm’s law can be drawn in a triangle. When using the
triangle, cover the value to be found, and the two val
ues left exposed signify how to obtain that value.
See Figure 2.1.
-
V
I
R
• The flow of current is measured in Ampe res or
Amps for short.
• The capital letter “I” is used to represent Amps.
The third and final value is Resistance:
• Resistance is the opposition to current flow. It is
a restriction that slows down the flow of current.
• Resistance is measured in Ohm’s.
• The greek letter omega “Ω” or the capital letter
“R” is used to represent Ohm’s.
Figure 2.1
As an example if the “R” is covered, the “V” is over the
“I” which means V is divided by I. If the “V” is covered,
“I” and “R” is exposed, meaning IxR and so on.
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