Toro PROLINE 44409 - Gather Information; Evaluate Potential Causes; Assess Performance; Solution Confirmation

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GEARS

TheSystematicapproachtodening,diagnosingandsolvingproblems.

GatherInformation

•Informationreportedbythecustomer

•Informationobservedbyyou

•Establishthewhat,whereandwhenoftheissue

EvaluatePotentialCauses

•Considerpossiblecausesoftheproblemtodevelopahypothesis

•Narrowdownthefocusoftheproblem

AssessPerformance

•Ensureyouhaveallthenecessarytoolsfortesting

•T estallpotentialcausesofthefailure

•Reevaluateandcreatenewhypothesesifnecessary

Repair

•Returntheunittoservicebyrepairing,rebuildingorreplacing

SolutionConrmation

•Didtheissuegoaway

•Wastherootcauseoftheissuecorrectlyrepaired

•Arethereanyothernewsymptoms

Troubleshooting:GeneralTroubleshooting

Page3–2

PROLINE®ServiceManual

3431-988RevA

Main Page

Revision History2
Service Procedure Icons4
Table of Contents5
Safety Instructions8
Think Safety First8
Specifications and Maintenance11
Specifications12
Torque Specifications17
Equivalents and Conversions22
U.S. to Metric Conversions23
Troubleshooting25
Gather Information26
Evaluate Potential Causes26
Assess Performance26
Solution Confirmation26
General Troubleshooting27
General Information32
Chapter 4: Engine33
Service and Repairs33
Engine Replacement37
Engine Removal37
Carbon Canister Replacement48
Air Cleaner Replacement48
Air Cleaner Removal48
Air Cleaner Installation49
Muffler Replacement50
Muffler Removal50
Fuel Tank Assembly Replacement61
General Information64
Chapter 5: Chassis65
Service and Repairs65
36 Inch Caster Replacement69
Spindle Replacement71
Spindle Removal71
Spindle Disassembly72
Spindle Assembly72
Spindle Installation72
General Information76
Chapter 6: Controls77
Service and Repairs77
Park Brake Replacement83
Park Brake Installation85
Park Brake Adjustment87
Choke Cable Replacement88
Choke Cable Removal88
Choke Cable Installation88
Throttle Control Replacement89
Control Handle Replacement90
Reference Bar Replacement95
General Information98
Chapter 7: Deck99
Service and Repairs99
Deck Replacement101
Deck Removal101
Deck Installation101
Deck Lift Assembly102
Deck Lift Removal102
Deck Lift Installation103
Drive System105
General Information106
Service and Repairs107
Transmission Replacement109
Transmission Removal109
Transmission Installation112
Hydrostatic Drive Belt Replacement115
Wheel and Tire Assembly Replacement115
Transmission Oil Filter Replacement116
Setting the Neutral Position118
Tracking Adjustment118
Electrical System119
General Information120
Service and Repairs121
Battery Replacement123
Hour Meter Replacement123
Ignition Switch Replacement125
Ignition Switch Removal125
Ignition Switch Test126
Ignition Switch Installation126
PTO Switch Replacement127
PTO Switch Test128
PTO Clutch Replacement129
PTO Clutch Removal129
PTO Clutch Continuity to Ground Check130
PTO Clutch Installation130
Solenoid Replacement131
Foldout Drawings133
Electrical Drawing Abbreviations134
Electrical Schematic135

Toro PROLINE 44409 - Gather Information; Evaluate Potential Causes; Assess Performance; Solution Confirmation

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