Service Manual
Table Of Contents
- Revision History
- Preface
- Chapter 1 : Safety
- Chapter 2 : Specifications and Maintenance
- Chapter 3 : Troubleshooting
- Chapter 4 : Engine
- Chapter 5 : Chassis
- General Information
- Service and Repairs
- Caster Assembly and Bearing Replacement
- Caster Wheel Bearing Replacement
- Left Console Replacement
- Right Console Replacement
- Seat Replacement (zx Models Only)
- Seat and MyRIDE™ Platform Replacement (MR Models Only)
- Fuel Tank Replacement
- Throttle Control Assembly Replacement
- Choke Control Assembly Replacement
- Park Brake Handle Assembly Replacement
- Motion Control Assembly Replacement
- Chapter 6 : Hydrostatic Drive System
- Chapter 7 : Mower Deck
- Chapter 8 : Electrical
- Appendix A: Foldout Drawings
- Electrical Schematic
MeasuringClutchCurrentDraw
Note:Donotmeasurecurrentdrawiftheclutchhasshortedtogroundorifthe
resistancemeasurementisoutofspecication.
1.ParkthemachineonalevelsurfaceanddisengagethePTO.Stopthe
engine,waitforallmovingpartstostop,andremovethekey.Engagethe
parkingbrake.
2.Disconnecttheclutchwireconnector.
3.Setthemulti-metertomeasureamps(10ampscale).
4.ConnectthepositivemeterleadtothechassisharnessterminalA.
5.Connectthenegativemeterleadtothecorrespondingclutchterminal.
6.ConnectashortjumperleadfromterminalC(largeredwirewithcap)to
terminalD(largeredwirewithnocap).
7.TurntheignitionswitchtoRUNandthePTOswitchtotheONposition.
8.RecordtheampreadingandrefertothePTOClutchElectricalSpecication
Chart.
Resistance(OHMs)
AMPDraw
ContinuitytoGround
3.05±5%
3.93
OPEN
TVSDiode
TheTVSDiodeprotectstheelectricalsystemfromcurrentsurgescausedby
PTOengagementanddisengagement.
g322161
Figure95
TVSDiodeTesting
Notestingprocedureavailable.Ifthediodeissuspectedtobefaulty,replacethe
diode.Ifthesystemfuseblowseachtimetheclutchisengaged,theTVSdiode
ismorethanlikelyshortingclutchpowertoground.
MagnetoStopRelay
Themagnentostoprelaygroundsthemagnetowhenthekeyisturnedtothe
“OFF”position.Whenthekeyisturnedtothe“RUN”position,thesolenoidis
TitanServiceManual
Page8–11
Electrical:ServiceandRepairs
3438-774RevA