John Deere 319D and 323D Skid Steer Loader Operation and Test Manual, Manual Controls (TM11414)

What's Covered in This Manual

This is the Operation and Test manual (TM11414) specifically for the John Deere 319D and 323D skid steer loaders built with manual (mechanical) controls - John Deere sold these same two models with electrohydraulic (EH) controls as well, covered under a separate manual, TM11422, so make sure you have the right one for your machine's control type before relying on it.

The diagnostic trouble codes in this manual are split between two controllers: the Engine Control Unit (ECU) and the Engagement and Monitor Unit (EMU), which is a simpler controller setup than the EH-controls version uses, reflecting the more mechanical nature of this control configuration. A Controller Area Network (CAN) overview section explains how the two controllers communicate before sending you to the specific diagnostic trouble codes for whichever one is throwing a fault.

Past the controller diagnostics, the manual covers a full operational checkout procedure, then theory of operation and diagnostic testing for the engine, electrical system, power train, hydraulic system, the separate hydrostatic system (drive), and heating/air conditioning. Powered by the PowerTech E 2.4L or 3.0L diesel engine depending on which model and configuration you have, these skid steers get the same thorough diagnostic treatment John Deere gives its larger construction equipment. At 580 pages, this manual gives a technician the test values and diagnostic trees needed to isolate a fault with confidence rather than guessing at what's wrong.

Table of Contents

• Section 9000 - General Information - safety information
• Section 9001 - Diagnostic Trouble Codes - ECU and EMU controller trouble codes
• Section 9005 - Operational Checkout Procedure - full-machine functional check
• Section 9010 - Engine - theory of operation, diagnostics, tests
• Section 9015 - Electrical System - system diagrams, sub-system diagnostics, monitor operation
• Section 9020 - Power Train - theory of operation, diagnostics, tests
• Section 9025 - Hydraulic System - theory of operation, diagnostics, tests
• Section 9026 - Hydrostatic System - theory of operation, diagnostics, tests
• Section 9031 - Heating and Air Conditioning - theory of operation, diagnostics, tests
• Section 9900 - Dealer Fabricated Tools - shop-made tool drawings