Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 3
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hydraulic Fitting Installation . . . . . . . . . . . . . . . . . . 3
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Relieving Hydraulic System Pressure . . . . . . . . . . 5
Traction Circuit Component Failure . . . . . . . . . . . . 5
Optional Hydraulic Accessories . . . . . . . . . . . . . . . 5
HYDRAULIC SCHEMATICS . . . . . . . . . . . . . . . . . . . . 6
Sand Pro 3040 and Infield Pro 3040 . . . . . . . . . . . 6
Sand Pro 3040 and Infield Pro 3040 (Including
Optional Hydraulic Kits) . . . . . . . . . . . . . . . . . . . . 7
Sand Pro 5040 and Infield Pro 5040 . . . . . . . . . . . 8
Sand Pro 5040 and Infield Pro 5040 (Including
Optional Hydraulic Kits) . . . . . . . . . . . . . . . . . . . . 9
HYDRAULIC FLOW DIAGRAMS . . . . . . . . . . . . . . . 10
Traction Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Lift Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Steering Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 19
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Charge Pressure and Implement Relief
Check Hydraulic Lines and Hoses . . . . . . . . . . . . 34
Flush Hydraulic System . . . . . . . . . . . . . . . . . . . . . 35
Charge Hydraulic System . . . . . . . . . . . . . . . . . . . 36
Hydraulic Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Oil Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Front Wheel Motor . . . . . . . . . . . . . . . . . . . . . . . . . 42
Rear Wheel Motor . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Wheel Motor Service . . . . . . . . . . . . . . . . . . . . . . . 46
Lift Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Lift Control Valve Service . . . . . . . . . . . . . . . . . . . . 50
Pump Control Assembly . . . . . . . . . . . . . . . . . . . . 52
Hydrostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Hydrostat Service . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Lift Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Lift Cylinder Service . . . . . . . . . . . . . . . . . . . . . . . . 62
Steering Control Valve (Sand Pro 5040 and
Infield Pro 5040) . . . . . . . . . . . . . . . . . . . . . . . . . 64
Steering Control Valve Service (Sand Pro 5040
and Infield Pro 5040) . . . . . . . . . . . . . . . . . . . . . . 66
Steering Cylinder (Sand Pro 5040 and Infield
Pro 5040) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Steering Cylinder Service (Sand Pro 5040 and
Infield Pro 5040) . . . . . . . . . . . . . . . . . . . . . . . . . 70
PARKER TORQMOTOR SERVICE PROCEDURE
TM
(TC, TB, TE, TJ, TF, TG, TH AND TL SERIES)
SAUER–DANFOSS (SUNDSTRAND) 15 SERIES RE-
PAIR MANUAL
Valve (R1) Pressure Tests . . . . . . . . . . . . . . . . . 22
Traction Relief Valve (R3) Pressure Test . . . . . . 24
Traction Pump (P1) Flow Test . . . . . . . . . . . . . . . . 26
Wheel Motor Efficiency Test . . . . . . . . . . . . . . . . . 28
Charge Pump (P2) Flow Test . . . . . . . . . . . . . . . . 30
Steering Cylinder Internal Leakage Test
SAUER–DANFOSS (SUNDSTRAND) 15 SERIES
SERVICE MANUAL
(Sand Pro 5040 and Infield Pro 5040) . . . . . . . 32
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . 34
General Precautions for Removing and
SAUER–DANFOSS STEERING UNIT TYPE OSPM
SERVICE MANUAL
Installing Hydraulic System Components . . . . 34
Sand Pro & Infield Pro 3040/5040
Page 4 – 1
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 3040, Toro 5040 |
| Download File |
|
| 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 |
(0 votes, average: 0 out of 5)