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Cub Cadet I Series

Cub Cadet I Series
168 pages
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Professional Shop Manual
I Series Riding Tractors
MTD Products Inc. - Product Training and Education Department
FORM NUMBER - 769-03231A
08/2009
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 2009 MTD Products Inc. All Rights Reserved

Table of Contents

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Cub Cadet I Series Specifications

General IconGeneral
BrandCub Cadet
ModelI Series
CategoryTractor
LanguageEnglish

Summary

CHAPTER 1: INTRODUCTION

Professional Shop Manual Intent

Explains the purpose and target audience of the manual.

Disclaimer

States that information is subject to change and disclaims liability for errors.

About the Text Format

Explains the use of NOTE, CAUTION, WARNING, and DANGER symbols.

Fasteners

Discusses fastener types, sizes, and usage of threadlocking compounds.

Assembly

Covers torque specifications, special instructions, and referencing other procedures.

Description of the I-series

Details the I-series tractor platform, zero-turning, and deck options.

Model and Serial Numbers

Explains how to locate and interpret model and serial number tags.

CHAPTER 2: ENGINE RELATED PARTS

Muffler

Provides step-by-step instructions for removing and replacing the muffler.

Exhaust Pipes

Details the procedure for removing and replacing exhaust pipes, including gasket use.

Fuel Tank RemovalReplacement

Step-by-step guide for removing and replacing the fuel tank.

CHAPTER 3: BRAKES

Brake System Description

Explains the two braking systems for HydroGear and IVT transmissions.

Brake Adjustment - HydroGear Transmissions

Step-by-step guide for adjusting brakes on HydroGear transmissions.

Brake Adjustment - IVT Transmissions

Instructions for adjusting brakes on IVT transmissions.

Brake PuckRotor Replacement - HydroGear Transmissions

Details replacing brake pucks and rotors for HydroGear transmissions.

Brake ShoesDrum - IVT Transmissions

Covers servicing brake shoes and drums for IVT transmissions.

Brake Cross Shaft Assembly

Explains servicing the brake cross shaft assembly and replacing bushings.

CHAPTER 4: BODYCHASSIS

The Hood

Instructions for removing and reinstalling the tractor hood.

Bumper

Steps for removing and installing the tractor bumper.

Dash Removal

Guide for removing the dashboard for access to internal components.

Remove the Fender

Provides instructions for removing the tractor fender.

CHAPTER 5 A: DRIVE SYSTEM - HYDROGEAR TRANSMISSIONS

Drive Belt

Details the procedure for removing and replacing the drive belt.

Belt Adjustment

Explains how to adjust the drive belt tension linkage for proper operation.

Transmissions

Covers the removal and installation of HydroGear EZT transmissions.

Drive Pedal Shaft

Instructions for removing and replacing the drive pedal shaft assembly.

CHAPTER 5 B: DRIVE SYSTEM - IVT TRANSMISSION

Infinitrak Full-Toroidal Infinitely Variable Transmission (IVT)

Introduces the IVT system and its components like variators and T-box.

Drop Axle Assemblies

Explains the function and serviceability of IVT drop axle assemblies.

Rebuilding the Drop Axles

Step-by-step guide for rebuilding the IVT drop axle assemblies.

Drive Pedal Shafts

Details the removal and installation of IVT drive pedal shafts.

CHAPTER 6 A: STEERING - HYDROGEAR TRANSMISSIONS

Introduction

Explains the two-phase steering system and its link to transmissions.

Cam Slot Angle Adjustment

Critical adjustment for steering gear box replacement or misalignment.

Neutral and Transmission Links Adjustment

Procedures for coordinating steering gear box, transmissions, and control linkages for neutral.

Wheel Alignment

Steps for aligning front wheels after steering adjustments.

Steering Gear Box Removal

Instructions for removing the steering gear box for replacement.

Rebuilding the Steering Gear Box

Detailed steps for disassembling and rebuilding the steering gear box.

Wear Block Adjustment

Adjusting the wear block to set steering rack backlash.

Front Wheels and Axles

Procedures for removing/replacing front wheels and ball bearings.

To Remove Replace the Front Axles

Steps for removing and replacing front axles and steering gears.

Drag Links

Instructions for removing and replacing drag links.

Tie Rod

Procedure for removing and replacing the tie rod.

Inboard Steering Gear

Steps for removing/replacing the inboard steering gear or king pin.

Pivot Bar

Guide for removing and replacing the pivot bar.

CHAPTER 6 B: STEERING - IVT TRANSMISSION

Introduction

Explains steering system with IVT transmission, similar to HydroGear.

Cam Slot Angle Adjustment

Critical adjustment for steering gear box replacement or misalignment in IVT.

Neutral and Drive Control Links Adjustment

Steps to ensure transmission is in neutral and adjust control links.

Wheel Alignment

Procedures for aligning front wheels after IVT steering adjustments.

Steering Gear Box Removal

Instructions for removing the steering gear box for replacement on IVT models.

Rebuilding the Steering Gear Box

Detailed steps for disassembling and rebuilding the IVT steering gear box.

Front Wheels and Axles

Procedures for removing/replacing front wheels and ball bearings on IVT models.

To Remove Replace the Front Axles

Steps for removing and replacing front axles and steering gears on IVT models.

Drag Links

Instructions for removing and replacing drag links on IVT models.

Tie Rod

Procedure for removing and replacing the tie rod on IVT models.

Inboard Steering Gear

Steps for removing/replacing the inboard steering gear or king pin on IVT models.

Pivot Bar

Guide for removing and replacing the pivot bar on IVT models.

CHAPTER 7: ELECTRICAL SYSTEM

Introduction

Outlines the chapter's four sections and general precautions.

Components

Introduces the I-series Cub Cadet Rev-Tek system and RMC Module.

Key Switch

Describes the key switch operation and troubleshooting scenarios.

Understanding the PTO Switch

Explains the function and operation of the PTO switch.

The Brake Switch

Details the mounting and function of the brake switch.

The Reverse Safety Switch

Describes the reverse safety switch and its ground path.

The Seat Safety Switch

Explains the seat safety switch and its role in safety circuits.

The Starter Solenoid

Locates and explains the function of the starter solenoid.

The Lighting Circuit

Explains how the lighting circuit operates and its power source.

20 Amp Fuse

Locates the 20A fuse and its connection to power systems.

Electrical Environment: AC Vs. DC

Discusses AC vs. DC systems and basic electrical concepts.

Ohms Law

Explains Ohm's Law relating voltage, current, and resistance.

Kirchhoffs Voltage Law

Describes voltage drops and their relationship to source voltage.

Types of Circuits

Explains the three main types of electrical circuit wiring: Series, Parallel, Series/parallel.

Increased Resistance

Discusses causes and effects of increased resistance in circuits.

The Tools

Lists essential and useful tools for diagnosing electrical systems.

Digital Multi-meter

Introduces the Digital Multi-meter as a primary diagnostic tool.

Wiring Diagram or Schematic

Emphasizes the importance of reading wiring diagrams for troubleshooting.

Fused Jumper Wires

Describes the usefulness of fused jumper wires for testing.

Self-Powered Continuity Lights

Explains continuity lights and their limitations compared to DMMs.

Battery Jumper Cables

Discusses the use of jumper cables for diagnostics and jump-starting.

Batteries

Covers battery precautions, handling, and general information.

Checking Battery Condition

Outlines methods for checking battery condition: visual, electrolyte, operational.

Battery Testers

Lists four primary methods for testing batteries.

Testing the Battery

Details the adjustable load testing procedure for batteries.

Fixed Load Testing

Describes the fixed load testing method and its limitations for mower batteries.

Capacitance Testing

Explains capacitance testers as a preferred battery testing method.

Battery Discharge Test

Details how to perform a battery discharge test to find voltage leaks.

Troubleshooting

General troubleshooting approach and checking simple items first.

Voltage Drop Test

Explains how to perform voltage drop tests on positive and negative sides.

Testing Switches

Methods for testing switches using continuity and voltage.

Diodes

Explains what a diode is and how to test it with a DMM.

CHAPTER 8: CUTTING DECKS AND LIFT SHAFT

Cutting Decks

Procedure for removing and installing the mower deck.

Cleaning the Deck

Instructions for cleaning debris from the mower deck.

Blades

Discusses blade condition, sharpening, balancing, and types.

To Remove the Blades

Step-by-step guide for removing and sharpening mower blades.

PTO Belt

Explains the function and replacement of the PTO belt.

Timing Belt

Procedure for servicing the timing belt on timed decks.

Spindles

Details replacing spindle pulleys and nuts.

To Replace a Spindle

Step-by-step instructions for replacing a blade spindle.

Leaving the Deck

Explains deck leveling for optimal cut quality.

Side to Side Leveling

Adjusting deck for proper side-to-side levelness.

Deck Gauge Wheel Adjustment

How to adjust gauge wheels to prevent deck scalping.

Deck Rear Roller Adjustment

Adjusting rear rollers for proper deck height.

Deck Lift Shaft Assembly Bushings

Procedure for replacing bushings in the deck lift shaft assembly.

Deck Lift Shaft Assembly RemovalReplacement

Steps for removing and replacing the deck lift shaft assembly.

Deck Lift Links and Cables

Explains the function of deck lift links and cable routing.

CHAPTER 9: MAINTENANCE INTERVALS

Lubrication

Recommended lubrication points and intervals for the tractor.

Engine Maintenance

Lists recommended maintenance intervals for engine components.

The Spark Plugs

Covers checking, cleaning, gapping, and replacing spark plugs.

Air Filter and Foam Pre Cleaner

Procedure for checking and cleaning air filters and pre-cleaners.

Oil Change

Step-by-step instructions for changing engine oil.

Oil Filter

Procedure for replacing the engine oil filter.

Fuel System

Important information about fuel and servicing the fuel system.

Fuel Filter

Instructions for replacing the fuel filter.

Clean the Engine

Guidance on cleaning air-cooled engines for optimal cooling.

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