Group 10—Engine Control Unit (ECU) Diagnostic Trouble Codes
Group 20—Chassis Control Unit (CCU) Diagnostic Trouble Codes
Section 9005—Operational Checkout Procedure
Group 10—Operational Checkout Procedure
Section 9010—Engine
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 20—Adjustments
Group 25—Tests
Section 9015—Electrical System
Group 05—System Information
Group 10—System Diagrams
Group 15—Sub-System Diagnostics
Group 20—References
Section 9020—Power Train
Group 05—Theory Of Operation
Group 15—Diagnostic Information
Group 20—Adjustments
Group 25—Tests
Section 9025—Hydraulic System
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 20—Adjustments
Group 25—Test
Section 9031—Heating and Air Conditioning
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 25—Tests
Measurements are given in both metric and U.S. units. Use only the correct parts and fasteners, as metric and inch fasteners may need specific wrenches. The John Deere 344K Loader manuals have two parts: Repair, and Operation and Tests.
Repair sections: Instructions on fixing components.
Operation and tests sections: Help identify routine failures quickly.
Information is grouped by component, including lists of essential tools, equipment, materials, parts kits, specifications, wear tolerances, and torque values. These manuals are concise, job-specific guides for diagnosis, analysis, testing, and repair.
The product identification number (PIN) plate (1) is located on the left side of machine in front of the steps. Each machine has a 17-character PIN (2) as shown on this plate.
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