Models: 1438GS, 1438HS, 1438G,
1538HS, 1542HS, 1542G, 1542H,
15.538G, 15.538H, 15.542G, 15.542H,
1642G, 1642H, 1642HS, 1642HV, 1646H,
1646HS, 1646HV, 1742GS, 1742HS,
1846HV, 1846HMS, 2046HV
This technical manual is written for an experienced
technician and contains sections that are specifically for
this product. It is a part of a total product support
The manual is organized so that all the information on a
particular system is kept together. The order of grouping
Troubleshooting Chart
Note: Depending on the particular section or system
being covered, not all of the above groups may be
Each section will be identified with a symbol rather than a
number. The groups and pages within a section will be
consecutively numbered.
COVERS THE FOLLOWING TOPICS:
Belt Tension Adjust, Mower Drive 8-7
Brake Switch Adjustment 4-24
Brake Switch/Blade Drive Switch Test 4-24
38 Inch Mower Deck 8-4
42 Inch Mower Deck 8-5
46 Inch Mower Deck 8-6
Hydrostatic Drive Traction System 6-8
Hydrostatic Power Train
Transaxle External 6-6
Mower Lift Linkage 8-3
Pedal Linkage Assembly 6-8
Cranking & Fuel Shutoff Solenoid
Circuit Operation 4-9
Dash Panel Removal and Installation 9-5
Charging Circuit 4-17
Cranking & Fuel Shutoff Solenoid 4-10
Gear Power Train 5-13
Headlight Circuit 4-18
Hydrostatic Power Train 6-18, 6-20
AC Voltage Output Test 4-22
Charging & Headlight Circuit Operation 4-16
Charging Circuit Diagnosis 4-17
Component Location 4-7
DC Amperage Output Test 4-21
Diagnostic Information 4-4
General Information 4-4
General Specifications 2-2
Ground Circuit Test 4-26
Reading Schematics 4-4
Seat Switch Test 4-23
Theory of Operation 4-4
Wire Color Chart 4-4
Service Equipment & Tools 3-3
Front Wheels Removal & Installation 9-4
Fuel Tank Removal and Installation 9-5
Component Location 5-12
Clutch Actuating Spring 5-16
Component Location 5-8
Drive System Adjustment 5-15
Ground Speeds Specifications 5-4
Gear & Pinion Inspect 5-25
Gear/Pinion Gear Installation 5-26
Intermediate & Drive Shaft Disassembly 5-29
Intermediate Shaft Repair 5-29
Rear Axle Loading Specification 5-3
Service Parts Kits 5-4
Sheave & Shift Arm Removal 5-23
Component Location 5-9
Removal & Installation 5-22
Theory of Operation 5-10
Torque Specifications 5-4
System Component Location 5-9
Brake Installation 5-33
Case Halves Assembly 5-32
Case Separation 5-24
Component Location 5-6
Differential/Axle Shaft
Drive Sheave/Shift Arm Install 5-34
Gear Ratios Specifications 5-4
Gear Tooth Specifications 5-3
Idler Assembly Installation 5-32
Idler Gear Disassembly 5-28
Idler Gear Inspection 5-28
Intermediate/Drive Shaft
Lubrication Specification 5-3
Shift Detent Removal 5-24
Shifter Detent Installation 5-33
Shifter Disassembly 5-27
Transaxle Assembly 5-30
General Specifications
Mower Deck Drive Belt 2-3
Traction Drive Belt 2-3
Brake Spring Adjustment 6-24
Brake/Neutral Return Pedal
Component Location & Operation 6-12
Theory of Operation 6-12
Diagnosis, General 6-18
Drive Belt Specifications 6-3
Linkage Removal/Installation 6-28
Traction Drive Belt Inspection 6-26
Traction Drive Belt Installation 6-26
Traction Drive Belt Removal 6-26
Shift Linkage Adjustment 6-23
Shift Linkage Spring Adjustment 6-24
Traction Drive System 6-22
Theory of Operation 6-10
Traction Drive Belt Adjustment 6-22
Traction Drive Component Location 6-8
Traction Drive System
Drive Belt Tensioning System
Removal/Inspection/Installation 6-27
Removal and Installation 6-30
Removal External Components 6-31
Transport Valve (Free-Wheel) Operation 6-13
Troubleshooting 6-15
Hydrostatic Transaxle
Axle Loading Specification 6-3
Brake Components Wear Tolerance 6-4
Brake Torque Rating Specification 6-3
Drive Sheave And Fan
Drive Sheave And Fan Removal 6-33
Fan/Drive Sheave Installation 6-42
Gear Ratios Specifications 6-3
Ground Speed Specifications 6-3
Housing Case Halves Separation 6-33
Lubrication Specifications 6-3
Motor/Drive Shaft Disassemble/Inspect 6-36
Motor/Drive Shaft Installation 6-40
Output Torque Rating Specifications 6-3
Pump Input Shaft Assembly
Removal and Installation 6-38
Reservoir Cover Removal 6-42
Reservoir Fill Procedure 6-42
Transaxle Components Wear Tolerance 6-4
Circuit Operation 4-12
Circuit Test Points 4-14
Removal & Installation 4-27
Lubricant Storage 2-9
Models: 1438GS, 1438HS, 1438G,
1538HS, 1542HS, 1542G, 1542H,
15.538G, 15.538H, 15.542G, 15.542H,
1642G, 1642H, 1642HS, 1642HV, 1646H,
1646HS, 1646HV, 1742GS, 1742HS,
1846HV, 1846HMS, 2046HV
This technical manual is written for an experienced
technician and contains sections that are specifically for
this product. It is a part of a total product support
The manual is organized so that all the information on a
particular system is kept together. The order of grouping
Troubleshooting Chart
Note: Depending on the particular section or system
being covered, not all of the above groups may be
Each section will be identified with a symbol rather than a
number. The groups and pages within a section will be
consecutively numbered.
COVERS THE FOLLOWING TOPICS:
Belt Tension Adjust, Mower Drive 8-7
Brake Switch Adjustment 4-24
Brake Switch/Blade Drive Switch Test 4-24
38 Inch Mower Deck 8-4
42 Inch Mower Deck 8-5
46 Inch Mower Deck 8-6
Hydrostatic Drive Traction System 6-8
Hydrostatic Power Train
Transaxle External 6-6
Mower Lift Linkage 8-3
Pedal Linkage Assembly 6-8
Cranking & Fuel Shutoff Solenoid
Circuit Operation 4-9
Dash Panel Removal and Installation 9-5
Charging Circuit 4-17
Cranking & Fuel Shutoff Solenoid 4-10
Gear Power Train 5-13
Headlight Circuit 4-18
Hydrostatic Power Train 6-18, 6-20
AC Voltage Output Test 4-22
Charging & Headlight Circuit Operation 4-16
Charging Circuit Diagnosis 4-17
Component Location 4-7
DC Amperage Output Test 4-21
Diagnostic Information 4-4
General Information 4-4
General Specifications 2-2
Ground Circuit Test 4-26
Reading Schematics 4-4
Seat Switch Test 4-23
Theory of Operation 4-4
Wire Color Chart 4-4
Service Equipment & Tools 3-3
Front Wheels Removal & Installation 9-4
Fuel Tank Removal and Installation 9-5
Component Location 5-12
Clutch Actuating Spring 5-16
Component Location 5-8
Drive System Adjustment 5-15
Ground Speeds Specifications 5-4
Gear & Pinion Inspect 5-25
Gear/Pinion Gear Installation 5-26
Intermediate & Drive Shaft Disassembly 5-29
Intermediate Shaft Repair 5-29
Rear Axle Loading Specification 5-3
Service Parts Kits 5-4
Sheave & Shift Arm Removal 5-23
Component Location 5-9
Removal & Installation 5-22
Theory of Operation 5-10
Torque Specifications 5-4
System Component Location 5-9
Brake Installation 5-33
Case Halves Assembly 5-32
Case Separation 5-24
Component Location 5-6
Differential/Axle Shaft
Drive Sheave/Shift Arm Install 5-34
Gear Ratios Specifications 5-4
Gear Tooth Specifications 5-3
Idler Assembly Installation 5-32
Idler Gear Disassembly 5-28
Idler Gear Inspection 5-28
Intermediate/Drive Shaft
Lubrication Specification 5-3
Shift Detent Removal 5-24
Shifter Detent Installation 5-33
Shifter Disassembly 5-27
Transaxle Assembly 5-30
General Specifications
Mower Deck Drive Belt 2-3
Traction Drive Belt 2-3
Brake Spring Adjustment 6-24
Brake/Neutral Return Pedal
Component Location & Operation 6-12
Theory of Operation 6-12
Diagnosis, General 6-18
Drive Belt Specifications 6-3
Linkage Removal/Installation 6-28
Traction Drive Belt Inspection 6-26
Traction Drive Belt Installation 6-26
Traction Drive Belt Removal 6-26
Shift Linkage Adjustment 6-23
Shift Linkage Spring Adjustment 6-24
Traction Drive System 6-22
Theory of Operation 6-10
Traction Drive Belt Adjustment 6-22
Traction Drive Component Location 6-8
Traction Drive System
Drive Belt Tensioning System
Removal/Inspection/Installation 6-27
Removal and Installation 6-30
Removal External Components 6-31
Transport Valve (Free-Wheel) Operation 6-13
Troubleshooting 6-15
Hydrostatic Transaxle
Axle Loading Specification 6-3
Brake Components Wear Tolerance 6-4
Brake Torque Rating Specification 6-3
Drive Sheave And Fan
Drive Sheave And Fan Removal 6-33
Fan/Drive Sheave Installation 6-42
Gear Ratios Specifications 6-3
Ground Speed Specifications 6-3
Housing Case Halves Separation 6-33
Lubrication Specifications 6-3
Motor/Drive Shaft Disassemble/Inspect 6-36
Motor/Drive Shaft Installation 6-40
Output Torque Rating Specifications 6-3
Pump Input Shaft Assembly
Removal and Installation 6-38
Reservoir Cover Removal 6-42
Reservoir Fill Procedure 6-42
Transaxle Components Wear Tolerance 6-4
Circuit Operation 4-12
Circuit Test Points 4-14
Removal & Installation 4-27
Lubricant Storage 2-9
