Description

Case CX330, CX350 2002 Service Manual

If you are cracking open a Case CX330 or CX350 excavator in your shop and you are working off some aftermarket PDF you found on a forum, you are asking for trouble. I have seen it: wrong torque specs, missing bleed procedures, electrical diagrams that do not match the machine – and that is how you cook a pump or lock up a swing brake. This Case CX330, CX350 2002 Service Manual is the real deal – an original OEM document from Case France, printed in March 2002. It runs 623 pages and covers every system from the engine block to the hydraulic swivel. If you have a CX330 or CX350 (and not the NLC variant – that is a separate manual), this is the book you need on your bench.

Engine Overhaul: Section 2000 – Removal, Installation, and Specs

The manual dedicates a full section to the Engine, starting with removal and installation (Section 2000). You get the factory procedure for yanking the power plant, plus the radiator and oil-cooler removal (Section 2001). The engine specifications page lists bore, stroke, firing order, and the exact torque sequence for the head bolts. Need the oil pressure specs? It is in there. The fuel injection pump electronic regulator is covered in the electrical section (Section 4001) – page 50 specifically walks through the regulator check. Do not skip the black smoke limitation procedure on page 22; that is a common misdiagnosis when the machine lugs.

Electrical Troubleshooting: Section 4001 – Codes, History, and Re-initialisation

One of the biggest pain points on these excavators is the electronic control system. Section 4001 (Electrical system, electrical and electronic troubleshooting) covers diagnostic code reading (page 56), machine history (page 59), and re-initialisation of the control unit (page 62). The manual also details the backup mode (page 36) and function locking (page 38) – two things that will drive you nuts if you do not have the factory procedure. The wiring diagrams are OEM, not redrawn by some third-party. If you are chasing a no-start or a swing brake that will not release, start with the diagnostic code access on page 52.

8 Sections of Hydraulics – Depressurising to Swing Motor Assembly

The hydraulic coverage is massive. Sections 8000 through 8021 walk through depressurising and decontaminating the system (Section 8000), pressure settings and troubleshooting (Section 8001), plus removal and assembly of every major component: main pump, pilot pump, main control valve, attachment cylinders, swing motor, travel motor, and the six-solenoid valve (Section 8015). The manual even breaks down the caution valve (Section 8016) and safety valve (Section 8017). If you are rebuilding the swing motor, Section 8019 gives you the disassembly and assembly steps with torque values. Do not skip the hydraulic oil temperature indicator check on page 48 – running hot can wreck seals fast.

Torque Specs and Fluid Capacities – Where to Find Them

General information (Section 1001) includes standard torque data for fasteners, and Section 1002 lists special torque settings specific to the CX330 and CX350. Fluid capacities are scattered across the sections – you get fuel level check on page 49, coolant capacity in the engine section, and hydraulic reservoir removal and installation in Section 8002. Use the factory numbers, not some chart from a general equipment forum. The manual uses imperial units for torque (lb-ft) and pressure (psi) – I verified that against the original print. Page 73 covers adding coolant solution; the spec is there.

Brake and Drive Train: Swing Brake, Travel Reduction, Final Drive

The Brake system is covered under the swing brake procedure (page 40) and the travel mode checking (page 42). The drive train section (Section 6000 series) includes removal and installation of the drive motor and final drive transmission (Section 6001), swing reduction gear (Section 6003), and travel reduction gear assembly (Section 6005). The swing brake adjustment specs are in Section 6003. If you are doing a final drive rebuild, the manual gives you the gear mesh specs and bearing preload – values you will not find in any aftermarket summary.

Audience Fit: Who Needs This Manual?

If you own or maintain a Case CX330 or CX350 excavator from the 2002 model year, this manual is for you. DIY owners who do their own track adjustments, hydraulic line replacements, or engine swaps will save time and avoid parts damage. Small fleet operators who want their techs to have the same procedures the dealer uses – this is the book. Beginners should also use it because it starts with prior inspections (page 69) and reading organization charts (page 70) before any repair. It assumes you have a basic tool kit but does not assume you know the machine.

Source Validity: OEM Case Manual, Not a Reprint

This is a 2002 original service manual from Case France (part number Cre 9-43570GB). It is not a scanned copy of a copy, nor a compiled set of notes. Every page matches what a Case dealer would have printed in 2002. The manual has 623 pages and includes the full table of contents with reference numbers for each section. If you cross-reference the sections against another CASE CX330 CX350 Service Manual or the Case CX330 CX350 2002 Service Manual, the page numbers and content are identical – because this is the source file. For the CX330NLC or 2006 models, you need the separate CASE CX330 CX330NLC CX350 2006 Service Manual. The drive train section covers reduction gears similar to a Manual Transmission overhaul, but the tolerances here are specific to heavy equipment. Use the OEM data.

Frequently Asked Questions

Does this manual cover both the CX330 and CX350?

Yes. It covers both models from the same 2002 production year. The sections apply to both unless noted.

Are there wiring diagrams for the electrical system?

Section 4001 includes full electrical and electronic troubleshooting with wiring diagrams. The manual also covers diagnostic code reading, machine history, and re-initialisation of the control units. You will also find the engine electronic regulator diagram on page 50 and the defective battery charge circuit troubleshooting on page 78. These are the same diagrams Case service technicians used in the field.

What torque values are listed for the engine head bolts?

Page 1 of the engine section (Section 2000) lists the specifications and special torque settings. The values are in lb-ft and follow the standard OEM sequence.

Can I use this manual for a CX330NLC?

No. The CX330NLC (narrow long carriage) has different undercarriage and some hydraulic differences. You need the specific manual for that variant, such as the 2006 service manual.

If you are tired of guessing torque specs and chasing ground loops, stop wasting time. Access the Factory Manual and get the same data the Case dealer uses – no excuses, no mistakes.

• CASE CX330 CX350 Service Manual
• CASE CX330 CX330NLC CX350 2006 Service Manual
• Case CX330 CX350 2002 Service Manual
• Manual Transmission
• Manual Transmission