Part of the Case Repair Manuals.
What's inside: the Case factory repair manual for the CX350C Tier 4 crawler excavator, service publication 84402832 NA, May 2011, 1,950 pages. General information and specifications open the book, then engine and fuel system removal and installation, a large diagnostic electrical half (basic functions, service support, function-structure-operation, symptom-based trouble diagnosis and functional inspection), undercarriage and drive train, and the upperstructure hydraulics: pressure measurement and adjustment, pump flow and drain volume measurement, air bleed, and removal and installation of the hydraulic tank, pump, control valve, every cylinder and the boom HBCV, followed by upperstructure work on boom, arm and bucket. Two things a buyer usually asks about are here and were checked page by page: page 726 is the full 'Sequence Circuit Diagram - Overall', a complete electrical circuit schematic with grid references and connector detail, and page 1545 is a colour-coded hydraulic circuit schematic from the 'Explanation of Hydraulic Circuit and Operations' chapter, which covers the standard model from page 1539 and the options from 1619.
What's Inside This Case CX350C Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-131 | Specifications, Main Equipment Table, Maintenance Standards, Bolt Size and Torque Table, Overall View, List of Special Tools |
| Engine | 132-387 | Removal and Installation of Engine Assembly, Removal and Installation of Turbo Charger, Removal and Installation of Cylinder Head, Removal and Installation of Cylinder Block, Lubrication System, Cooling System |
| Fuel System | 388-427 | Removal and Installation of Fuel Tank, Removal and Installation of Fuel Supply Pump, Removal and Installation of Common Rail Assembly, Removal and Installation of Injector |
| Electrical System - Electrical and Engine Basic Functions | 428-723 | Service Support, Function, Structure, Operation, Symptom, Functional Inspection, Maintenance Precautions, Preheating System |
| Electrical System - Sequence Circuit Diagram | 724-981 | Introduction to the Trouble Diagnosis, Engine Control System, Engine-Side Trouble, Main Unit-Side Trouble, Electrical Wiring Diagram |
| Undercarriage | 982-1075 | Removal and Installation of Shoe Assembly, Assembly and Disassembly of Upper Roller, Assembly and Disassembly of Lower Roller, Removal and Installation of Sprocket, Assembly and Disassembly of Take-Up Roller, Assembly and Disassembly of Grease Cylinder |
| Drive Train | 1076-1147 | Removal and Installation of Travel Motor, Assembly and Disassembly of Travel Motor, Removal and Installation of Swing Unit, Assembly and Disassembly of Swing Unit |
| Upperstructure Hydraulics - Port Diagram | 1148-1481 | Pressure Measurement and Adjustment Procedures, Hydraulic Pump Flow Measurement Procedures, Drain Volume Measurement Procedures, Air Bleed Procedure, Removal and Installation of Hydraulic Oil Tank, Removal and Installation of Hydraulic Pump |
| Upperstructure Hydraulics - Assembly and Disassembly of Cushion Valve | 1482-1755 | Removal and Installation of Boom HBCV, Assembly and Disassembly of Center Joint, Assembly and Disassembly of Swing Motor, Structure and Operation Explanation of Travel Motor, Structure and Operation Explanation of Swing Motor |
| Upperstructure | 1756-1947 | Removal and Installation of Boom, Removal and Installation of Cab Assembly, Air Conditioner Overall Diagram, Assembly and Disassembly of Air Conditioner Units, Removal and Installation of Condenser, Work Precautions |
| Electrical and Hydraulic Schematic Sheets | 1948-1950 | Electrical Schematics, Hydraulic Schematic |
Case CX350C Common Problems This Manual Covers
Engine derates or throws faults and you cannot tell if the problem is on the engine side or the machine side
The sequence circuit chapter splits trouble diagnosis into engine-side trouble and main unit-side trouble, with symptom based procedures and the full wiring diagram, so you test the circuit in question instead of swapping sensors on a hunch.
Manual Section: Electrical System - Sequence Circuit Diagram p. 614Weak digging power or slow cycle times with no obvious leak
Follow the pressure measurement and adjustment procedures, then the hydraulic pump flow and drain volume measurement procedures, which tell you whether the pump, a relief setting or internal leakage in an actuator is eating your flow before you pull anything apart.
Manual Section: Upperstructure Hydraulics - Port DiagramBoom drifts down under load or drops when a hose fails
The manual carries removal and installation of the boom holding valve, the boom HBCV, alongside cushion valve assembly and disassembly, so you can rebuild or replace the holding circuit rather than living with a creeping boom.
Manual Section: Upperstructure Hydraulics - Assembly and Disassembly of Cushion ValveLoose or thrown track from worn undercarriage or a dead track adjuster
The Undercarriage chapter walks through removal and installation of the shoe assembly and sprocket, assembly and disassembly of upper, lower and take-up rollers, and rebuild of the grease cylinder that holds track tension in the first place.
Manual Section: Undercarriage p. 982Frequently Asked Questions
Will this manual work for my Tier 3 CX350, or is it Tier 4 only?
It is the Tier 4 C-series book. The common rail fuel system, engine control electronics and wiring in here match the CX350C from 2011 on. If you have a Tier 3 CX330 or CX350, you want the separate Tier 3 manual instead - the fuel and electrical chapters will not line up with your machine.
Does it actually cover injector and common rail replacement, or just tell me to see the dealer?
It covers the work. The Fuel System chapter has removal and installation procedures for the supply pump, the common rail assembly and the injectors, plus the fuel tank. The engine control chapters back that up with function, structure and operation explanations so you can diagnose before you start pulling lines. p. 132
I have a slow track on one side. Is there enough here to chase it down?
Yes. Start with the hydraulic test procedures - pressure measurement and adjustment, pump flow measurement and drain volume measurement, which is how you separate a tired travel motor from a pump or valve problem. Then the Drive Train chapter has full removal, disassembly and assembly of the travel motor, and the hydraulics section explains its structure and operation, including the straight travel circuit with HBCV shown in colour on page 1545.
Are the full electrical and hydraulic schematics included, and are they readable?
Both are in. Page 726 carries the complete sequence circuit diagram with grid references and connector detail, and there is an electrical equipment layout chapter so you can find components on the machine. The hydraulic side has colour coded circuit schematics for the standard model from page 1539 and again from page 1619 for options, plus a port diagram chapter with port sizes. p. 726
Does it include torque specs and maintenance standards, or just procedures?
The General Information chapter has the specifications, maintenance standards and a bolt size and torque table, along with the special tools list. The teardown chapters then reference those standards, so you have wear limits and fastener values in one place instead of guessing at reassembly. p. 1
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