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Section 1 - Introduction . . . . . . . . . . . . . . . . . . 1-3
1.1 The Manual. . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 Service And Replacement Parts. . . . . . . . . 1-3
1.3 Product Registration . . . . . . . . . . . . . . . . . . 1-3
1.4 Unauthorized Replacement Parts. . . . . . . . 1-3
1.5 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.6 Technical Service Communications . . . . . . 1-3
Section 2 - Safety . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.1 Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.2 Signal Words. . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3 Notations. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.4 Practices And Laws . . . . . . . . . . . . . . . . . . 2-4
2.5 Required Operator Training . . . . . . . . . . . . 2-4
2.6 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.7 Cleaning And Storage. . . . . . . . . . . . . . . . . 2-4
2.8 Safety Rules . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Section 3 - Specifications . . . . . . . . . . . . . . . . . 3-7
Section 4 - General Maintenance
& Adjustments . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.1 Controls And Features . . . . . . . . . . . . . . . . 4-8
4.2 Filling The Fuel Tank. . . . . . . . . . . . . . . . . . 4-9
4.3 Checking The Hydraulic Fluid . . . . . . . . . . . 4-9
4.4 Checking Fasteners . . . . . . . . . . . . . . . . . . 4-9
4.5 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.6 Adjustment Of Transmission Neutral . . . . . 4-9
4.7 Adjustment Of Direction Control Pedal . . . 4-10
Section 5 - Engine . . . . . . . . . . . . . . . . . . . . . . 5-11
5.1 Engine Troubleshooting . . . . . . . . . . . . . . 5-11
5.2 Engine Removal . . . . . . . . . . . . . . . . . . . . 5-12
5.3 Engine Installation . . . . . . . . . . . . . . . . . . 5-12
Section 6 - Mower Deck . . . . . . . . . . . . . . . . . . 6-13
6.1 Installing Mower . . . . . . . . . . . . . . . . . . . . 6-13
6.2 Removing Mower . . . . . . . . . . . . . . . . . . . 6-13
6.3 Adjust Height Of Cut (60" Mower). . . . . . . 6-13
6.4 Adjust Height Of Cut (50" Mower). . . . . . . 6-14
6.5 Deck Drive Belt Replacement . . . . . . . . . . 6-14
6.6 Spindle Replacement . . . . . . . . . . . . . . . . 6-15
6.7 Sharpen Blades . . . . . . . . . . . . . . . . . . . . 6-15
Section 7 - Steering & Controls . . . . . . . . . . . 7-16
7.1 Directional Control Cable . . . . . . . . . . . . . 7-16
7.2 Directional Control Pedal . . . . . . . . . . . . . 7-16
7.3 Steering Cable Replacement . . . . . . . . . . 7-16
7.4 Steering Shaft Removal . . . . . . . . . . . . . . 7-17
7.5 Brake Cable Replacement . . . . . . . . . . . . 7-17
7.6 Brake Lever . . . . . . . . . . . . . . . . . . . . . . . 7-17
7.7 Brake Pivot And Brake Arm . . . . . . . . . . . 7-18
Section 8 - Hydraulic System . . . . . . . . . . . . . 8-19
8.1 Filter Change . . . . . . . . . . . . . . . . . . . . . . 8-19
8.2 Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . 8-19
8.3 Hydraulic Tank . . . . . . . . . . . . . . . . . . . . . 8-21
8.4 Lift Cylinder. . . . . . . . . . . . . . . . . . . . . . . . 8-21
8.5 Lift Pump. . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
8.6 Pump Housing . . . . . . . . . . . . . . . . . . . . . 8-21
8.7 Hydraulic Valve Pressure Adjustment . . . . 8-22
8.8 Hydraulic Valve . . . . . . . . . . . . . . . . . . . . . 8-22
Section 9 - Drive Train . . . . . . . . . . . . . . . . . . . 9-23
9.1 Transmission Removal . . . . . . . . . . . . . . . 9-23
9.2 Eaton 851 Transmission . . . . . . . . . . . . . . 9-24
9.3 Axle Housing Disassembly . . . . . . . . . . . . 9-25
9.4 Motor Rotor Disassembly . . . . . . . . . . . . . 9-26
9.5 Pump And Motor Rotor Inspection . . . . . . 9-27
9.6 Transaxle Reassembly . . . . . . . . . . . . . . . 9-28
9.7 Transaxle With Dump Valve . . . . . . . . . . . 9-28
9.8 Transaxle With Charge Pump . . . . . . . . . . 9-29
9.9 Cover Reassembly . . . . . . . . . . . . . . . . . . 9-30
9.10 Axle Housing Reassembly . . . . . . . . . . . 9-31
9.11 Fluid Recommendations . . . . . . . . . . . . . 9-32
9.12 Replacing The Transmission Belt . . . . . . 9-32
9.13 Front Wheel . . . . . . . . . . . . . . . . . . . . . . 9-33
9.14 Rear Wheel And Hub . . . . . . . . . . . . . . . 9-33.
Section 10 - Fuel System. . . . . . . . . . . . . . . . 10-35
10.1 Fuel System Troubleshooting . . . . . . . . 10-35
10.2 Fuel Tank Removal . . . . . . . . . . . . . . . . 10-35
10.3 Fuel Tank Installation . . . . . . . . . . . . . . 10-35
Section 11 - Power Take-off (PTO) . . . . . . . . 11-36
11.1 Replacing The PTO Clutch Belt On
Models With Idler Springs . . . . . . . . . . . 11-36
11.2 Clutch Removal . . . . . . . . . . . . . . . . . . . 11-36
11.3 Clutch Installation . . . . . . . . . . . . . . . . . 11-36
Section 12 - Electrical . . . . . . . . . . . . . . . . . . 12-37
12.1 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-37
12.2 Electrical Measurements. . . . . . . . . . . . 12-37
12.3 Battery. . . . . . . . . . . . . . . . . . . . . . . . . . 12-38
12.4 Switches . . . . . . . . . . . . . . . . . . . . . . . . 12-40
12.5 Solenoid And Relays. . . . . . . . . . . . . . . 12-41
12.6 Lighting Circuits . . . . . . . . . . . . . . . . . . 12-42
12.7 Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 12-42
12.8 Diodes And Rectifiers . . . . . . . . . . . . . . 12-42
12.9 Electric Clutch . . . . . . . . . . . . . . . . . . . . 12-42
12.10 Checking The PTO Clutch . . . . . . . . . 12-43
12.11 Promaster 300 Electrical . . . . . . . . . . . 12-43
12.12 Interlock Switch. . . . . . . . . . . . . . . . . . 12-44
12.13 Fuse Holder . . . . . . . . . . . . . . . . . . . . 12-44
12.14 Time Delay Module . . . . . . . . . . . . . . . 12-44
12.15 PTO Switch . . . . . . . . . . . . . . . . . . . . . 12-44
12.16 Continuity Diagrams . . . . . . . . . . . . . . 12-45
12.17 Wiring Diagrams . . . . . . . . . . . . . . . . . 12-48
TABLE OF CONTENTS