Toro Groundsmaster 345 / 322-D / 325-D Service Manual

Comprehensive repair information for Toro Groundsmaster 345, 322-D, and 325-D models. Includes troubleshooting, maintenance, and detailed procedures for all systems.

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Document Details

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Document Number / Seller:
30821 / Jennifer Brown
File Size:
15.21 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Mower
Last updated / verified
Jun 20, 2025

Models Covered & Key Technical Specifications

Toro Groundsmaster 345, 322-D, 325-D Service Manual

This manual provides essential information for servicing the Toro Groundsmaster 300 Series.

  • Manufacturer Data: Toro Groundsmaster 300 Series tractor.
  • Engine Specifications: Mitsubishi K3D-61TG, 3-cylinder diesel engine.
  • Displacement Details: Total displacement of 0.979 liters (59.7 in.³).
  • Fuel System Type: Diesel ASTM No. 2-D.
  • Cooling System Capacity: 5.7 liters (6 U.S. qt.) forced circulation, water cooling.
  • Hydraulic Oil Type: SF/CC or CD classification, viscosity selected based on ambient temperature.

Professional Workshop Service Manual & Technical Specifications

Toro Groundsmaster 300 Series Service Manual: Toro Groundsmaster 345, 322-D, 325-D Service Manual

Make/Designation: Mitsubishi K3D-61TG, 3-cylinder diesel // System: Engine & Hydraulic Logic // Torque: Proper tightening torque for assembly.

Identifier Technical-Path Calibration-Standards
Engine Specifications Mitsubishi K3D-61TG 3-cylinder Diesel
Fuel Type Diesel ASTM No. 2-D 87 octane or higher
Hydraulic System Dana Hydrostatic Axle GT-20 Model
Operating Speed (no load) 3200 RPM ± 50 RPM
Traction Pressure 4000-4500 psi Do not exceed 5000 psi

The documentation is partitioned into the following chapters:

  • Electrical System Schematics
  • Troubleshooting Guides
  • Component Identification and Testing
  • Hydraulic System Diagrams
  • Differential Axle Repair Procedures

OEM guidelines are included for engine maintenance. Transmission service information covers removal and installation. HVAC system procedures are included for component access. Torque specifications are documented for critical fasteners to ensure proper assembly. Parts identification is covered for key components. This manual covers the complete range of systems and procedures necessary for the servicing and repair of the Toro Groundsmaster 300 Series models, including the Mitsubishi K3D diesel engine and hydraulic systems. "Systematically requiring" proper maintenance will enhance operational longevity.

This manual documents torque specifications for critical fasteners to ensure proper bearing preload accuracy.

FAQ

What specifications are essential for testing the Groundsmaster 300 Series? keyboard_arrow_down

23:1 is the compression ratio for the Mitsubishi K3D-61TG engine, a key specification for engine health evaluation.

Check the correct diagnostic procedures for the hydraulic system. keyboard_arrow_down

45-55 ft-lb is the specified torque for tightening wheel lug nuts on the Groundsmaster 300 Series to ensure wheel security.

What does the documented fluid capacity requirements state for the Groundsmaster 300 Series? keyboard_arrow_down

5.7 liters (6 U.S. qt.) is the cooling system capacity for the Mitsubishi K3D-61TG engine, critical for maintaining optimal operating temperatures.

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Reviews (5)

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This manual has been a game-changer for our maintenance team. The troubleshooting guides are clear and easy to follow.
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Rated 4 out of 5 stars
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The safety instructions and common repairs sections helped us avoid unnecessary downtime. Very well organized.
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The detailed specifications and maintenance procedures are invaluable. Highly recommend for anyone working with Toro equipment.
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Rated 4 out of 5 stars