Service Manual
Table Of Contents
- Title Page
- Revision History
- Reader Comments
- Preface
- Table Of Contents
- 1 - Safety
- 2 - Product Records and Maintenance
- 3 - Kubota Diesel Engine
- 4 - Hydraulic System
- Specifications
- General Information
- Special Tools
- Hydraulic Schematics
- Hydraulic Flow Diagrams
- Troubleshooting
- Testing
- Traction Circuit Testing - Charge Pressure Test
- Traction Unit Testing - Wheel Motor Efficiency Tests
- Traction Circuit Testing - Piston Pump/Hydrostat Flow and Relief Pressure Test
- Cutting Unit Circuit Testing - Pressure Test
- Cutting Unit Circuit Testing - Reel Motor Efficiency/Case Drain Test
- Cutting Unit Circuit Testing - Reel Motor Cross-Over Relief Pressure Test (Reelmaster 3575-D)
- Cutting Unit Circuit Testing - Proportional Relief Valve (PRV) Pressure Test
- Cutting Unit Circuit Testing - Mow Control Manifold Relief Valve (RV) Pressure Test
- Cutting Unit Circuit Testing - Gear Pump (P1) Flow Test
- Steering/Lift Circuit Testing - Gear Pump (P2) Flow Test
- Steering/Lift Circuit Testing - Lift Relief Valve (RV1) Pressure Test (Reelmaster 3555-D and 3575-D)
- Steering/Lift Circuit Testing - Steering Relief Valve Pressure Test
- Steering/Lift Circuit Testing - Steering Control Valve and Steering Cylinder Test
- Adjustments
- Service and Repairs
- General Precautions for Removing and Installing Hydraulic System Components
- Check Hydraulic Lines and Hoses
- Priming Hydraulic Pumps
- Flush Hydraulic System
- Filtering Closed-Loop Traction Circuit
- Charge Hydraulic System
- Hydraulic Tank
- Radiator and Oil Cooler Assembly
- Hydraulic Pump Assembly
- Neutral Arm Assembly
- Piston Pump/Hydrostat
- Piston Pump/Hydrostat Service
- Gear Pump
- Gear Pump Service
- Front Wheel Motors
- Rear Wheel Motor
- Wheel Motor Service
- Cutting Unit Reel Motor
- Cutting Unit Reel Motor Service (Reelmaster 3550-D and 3555-D)
- Cutting Unit Reel Motor Service (Reelmaster 3575-D)
- Mow Control Manifold
- Mow Control Manifold Service
- Lift Control Manifold
- Lift Control Manifold Service (Reelmaster 3550-D)
- Lift Control Manifold Service (Reelmaster 3555-D and 3575-D)
- Control Manifold Cartridge Valve Service
- Steering Control Valve
- Steering Control Valve Service
- Steering Cylinder
- Steering Cylinder Service
- Front Lift Cylinders
- Rear Lift Cylinders
- Lift Cylinder Service
- 5 - Electrical System
- General Information
- Electrical Schematic
- Special Tools
- Troubleshooting
- Electrical System Quick Checks
- Adjustments
- Component Testing
- Ignition Switch
- Main Power Relay
- Fuses
- Fusible Links
- Toro Electronic Controller (TEC)
- Parking Brake Switch
- Neutral Switch
- Lower/Raise Joystick Switches
- Reel Enable/Disable Switch
- Mow/Transport Switch
- Seat Switch
- Backlap Switch
- Turn Around Switch (Reelmaster 3555-D and 3575-D)
- Engine Temperature Sender
- Start Relay
- Fuel Stop Solenoid
- Fuel Pump
- Glow Relay
- Hydraulic Solenoid Valve Coils
- Indicator Lights
- CAN-bus Termination Resistors
- Hour Meter
- Oil Pressure Switch
- Worklight Switch
- Service and Repairs
- 6 - Chassis
- 7 - DPA Cutting Units
- 8 - Belt Driven Groomer (Optional)
- 9 - Universal Groomer (Optional)
- 10 - Foldout Drawings
- Electrical Drawing Designations
- Reelmaster 3550-D Hydraulic Schematic
- Reelmaster 3555-D/3575-D Hydraulic Schematic
- Reelmaster 3550-D Electrical Schematic (machine serial numbers below 316000300)
- Reelmaster 3550-D (machine serial numbers above 316000300) Electrical Schematic
- Reelmaster 3555-D/3575-D Electrical Schematic
- Reelmaster 3550--D/3555--D/3575--D Electrical Schematic (Serial Numbers Above 403446001)
- Reelmaster 3550-D (machine serial numbers below 316000300) Wire Harness Drawing
- Reelmaster 3550-D (machine serial numbers below 316000300) Wire Harness Diagram
- Reelmaster 3550--D/3555--D/3575--D (Machine serial number 316000301 to 403446000) Wire Harness Drawing
- Reelmaster 3550-D (machine serial numbers above 316000300) Wire Harness Diagram
- Reelmaster 3550--D/3555--D/3575--D Wire Harness Drawing(Machine serial number 316000301 to 403446000)
- Reelmaster 3550--D/3555--D/3575--D Wire Harness Drawing Serial Numbers 403446001 to 405999999)
- Reelmaster 3550--D/3555--D/3575--D Wire Harness Drawing (Serial Numbers Above 406000000)
Reelmaster 3550−D/3555−D/3575−DHydraulic System Page 4 − 28
Troubleshooting
The chart that follows contains information to assist in
troubleshooting. There may possibly be more than one
cause for a machine malfunction.
Review the hydraulic schematic and information on hy-
draulic system operation in the Hydraulic Flow Dia-
grams section of this Chapter. This information will be
useful during the hydraulic troubleshooting process.
Refer to the Testing section of this Chapter for precau-
tions and specific hydraulic test procedures.
General Hydraulic System Problems
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Problem
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Possible Cause
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Hydraulic oil leaks from system.
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Hydraulic fitting(s), hose(s) or tube(s) are loose or damaged.
O−ring(s) or seal(s) are missing or damaged.
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Hydraulic fluid foams.
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Oil level in hydraulic tank is low.
Hydraulic system has wrong type of hydraulic oil.
The pump suction line has an air leak.
Incompatible hydraulic oils are mixed in the hydraulic system.
Water contamination is in the hydraulic system.
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Hydraulic system operates hot
(above 200F (93C).
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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
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Traction pressure is high due to excessive load or brake applied.
Oil level in hydraulic tank is low, or inlet filter is loose or clogged
(NOTE: Other hydraulic systems are affected as well).
Hydraulic oil is contaminated or oil viscosity is too light.
Oil cooler is damaged or plugged.
Bypass valve in traction pump/hydrostat is open or defective.
Charge pressure is low.
Wheel motor(s) or cutting unit motor(s) are worn or damaged.
Traction pump/hydrostat is worn or damaged.