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Professional Shop Manual

CC 500 EL

MTD Products Inc. - Product Training and Education Department

FORM NUMBER - 769-03332

6/2007

NOTE:

 These materials are for use by trained technicians who are experienced in the service and repair of outdoor 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 inexperi-
enced 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 Oper-
ators 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 accurate as possible at the time of publication.  However, due 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 

Summary of Contents for CC 500 EL

Page 1: ...he product s Oper ators 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 acc...

Page 2: ......

Page 3: ...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 Swi...

Page 4: ...ii...

Page 5: ...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 8877...

Page 6: ...el of assembly instructions provided will be determined by the complexity and of reassembly and by the potential for unsafe conditions to arise from mis takes made in assembly Some instructions may re...

Page 7: ...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 c...

Page 8: ...proper size wire is used and there is no corrosion in the wire the resistance will be too small to worry about The light bulb uses 12 volts 4 amps x 3 ohms 12 volts the battery has 12 volts that equa...

Page 9: ...es a rectifier to covert AC volt age into DC voltage The rectifier operation will be cov ered in a later section of this chapter Figure 2 4 DC wave form Electric circuits All circuits have some basic...

Page 10: ...ts A short is when electricity takes a path that it was not designed to take bypassing a component in the circuit An common example of a short is the wire that chafed through The bare copper will shor...

Page 11: ...uit and having the circuit go through the meter Figure 2 8 NOTE The only exception to this is when using an inductive amp clamp When measuring resistance the component must be isolated from the circui...

Page 12: ...t each switch has a normally open contact and a normally closed contact See Figure 2 10 Testing a switch When testing a double pole double throw switch treat it as two switches Test one side of the sw...

Page 13: ...function That means that a button has to be pushed in to restore the connection between the contacts The cir cuit breaker may have to cool down for a few minutes before the breaker can be reset See Fi...

Page 14: ...M to the diode scale See Figure 2 14 3 Attach the negative lead of the DVOM to the side of the diode with a band on it 4 Place the positive lead on the other side of the diode 5 There should be contin...

Page 15: ...side of the AC wave form it does not have a smooth output wave form See Figure 2 19 NOTE For a motor that is fine If using elec tronic devices the wave form would need to be smoothed out Testing the...

Page 16: ...converts electrical energy into mechanical force The motor used on this mower is not serviceable The motor is diagnosed by a process of elimination Test the circuit breaker first then test the switch...

Page 17: ...ck is a 1 4 3 8 lower than the rear of the deck This is very important to get the proper air flow in the deck so that the blades can make the grass blades stand up to get cut The air flow in the cutti...

Page 18: ...ausing personal injury 5 Place the cutting blade locking plate and blade bolt on the motor shaft NOTE Make certain to replace the parts in the exact order in which they were removed When installing th...

Page 19: ...ws using a T 27 Torx driver See Figure 3 4 4 Unhook the harness from the clips on the handle bar See Figure 3 5 Figure 3 4 Mounting screws Figure 3 5 Clips 5 Peel back the label on the side of the swi...

Page 20: ...es or make a drawing to ensure the wires are hooked up properly when the switch box is installed 5 Unhook the wiring harness from the motor mount See Figure 3 8 6 Remove the two mounting screws using...

Page 21: ...e four slots in the cover See Figure 3 11 Figure 3 10 Blade hub Figure 3 11 Push in tab with a flat head screwdriver 4b Press in the tab while lifting on the cover 4c Repeat steps 4a and 4b on the oth...

Page 22: ...Tag the wires so that they go back on the proper tabs Failure to do so will prevent the mower from working and may cause damage to the rectifier 4 Remove the screw in the center of the rectifier usin...

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