Chapter 5
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . 3
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hydraulic Fitting Installation . . . . . . . . . . . . . . . . 3
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
HYDRAULIC SCHEMATICS . . . . . . . . . . . . . . . . . . 6
HYDRAULIC FLOW DIAGRAMS . . . . . . . . . . . . . . . 7
Forward Traction Operation . . . . . . . . . . . . . . . . . 7
Raising the Cutting Unit . . . . . . . . . . . . . . . . . . . 8
Turning Steering Wheel to Right . . . . . . . . . . . . . 9
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 12
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Test No. 1: Charge Pressure . . . . . . . . . . . . . . . 19
Test No. 2: Implement Relief Pressure . . . . . . . 20
Test No. 3: Traction Pressure . . . . . . . . . . . . . . 21
Test No. 4: Charge Pump Flow and
REPAIRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Transmission Trunnion Seal Replacement . . . . 26
Transmission By-Pass Valve . . . . . . . . . . . . . . . 27
Transmission Acceleration Valves . . . . . . . . . . . 28
Transmission Implement Relief Valve . . . . . . . . 29
Transmission Charge Relief Valve . . . . . . . . . . . 30
Transmission Charge Pump . . . . . . . . . . . . . . . 31
Transmission Removal and Installation . . . . . . . 33
Transmission Overhaul . . . . . . . . . . . . . . . . . . . 34
Separating Transmission Into Sections . . . . . . . 34
Transmission Pump Section . . . . . . . . . . . . . . . 35
Transmission Center Section . . . . . . . . . . . . . . 37
Transmission Motor Section . . . . . . . . . . . . . . . 38
Assembling Transmission Sections . . . . . . . . . . 39
Priming After Transmission Overhaul
or Replacement . . . . . . . . . . . . . . . . . . . . . . . 40
Lift Cylinder Removal and Installation . . . . . . . . 41
Lift Cylinder Repair . . . . . . . . . . . . . . . . . . . . . . 42
Lift Valve Removal and Installation . . . . . . . . . . 43
Lift Valve Repair . . . . . . . . . . . . . . . . . . . . . . . . 44
Implement Relief Pressure . . . . . . . . . . . . . . 22
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Traction Control Rod Adjustment . . . . . . . . . . . 23
Traction Pedal Friction Wheel Adjustment . . . . 23
Traction Control Neutral Adjustment . . . . . . . . . 24
Lift Lever Latch Adjustment . . . . . . . . . . . . . . . . 25
Groundsmaster® 300 Series
Page 5 - 1
Table of Contents
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 300, Toro Groundsmaster 328 D, Toro Groundsmaster 92801SL |
| Download File |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(2 votes, average: 5 out of 5)
Lawn and Garden readers have rated Toro 92801SL Rev I Groundsmaster 300 Series Groundsmaster 328 D Service Manual 5.0 out of 5.0 based on 2 product reviews. Need 328D. Manual pdf. Will rate after finding manual
t has been a very reliable machine but getting parts is hard and not cheap to buy , generic parts has been cost effective and reliable , i am unable to get a wiring circut diagram for this unit as most problems are electrical problems