CASE Construction CX290 Crawler Excavator Service Manual 9-42860 English

Official Manual Overview

Achieve absolute mechanical supremacy over the heavy-duty CASE CX290 Crawler Excavator (with integrated systems data for CX210 and CX240 architectures) using this definitive OEM Service Manual. Engineered strictly for advanced dealership technicians, this master reference obliterates diagnostic guesswork. It transforms the cabin monitor into an elite interrogation terminal, granting direct access to hidden engineering screens (CHK1-6, DIAG1-6) to instantly decode critical CAN-bus communication failures (Code M0090) and monitor exact proportional solenoid amperages. Beyond profound electronics, it delivers uncompromising hydraulic metrology—mandating the use of the Multi-Handy 2051 digital tester to dial in boom secondary relief valves to a strict 212 bar (21.2 MPa) and verifying the massive 217 L/min swing motor flow capacity. To safeguard against catastrophic structural failures under extreme earthmoving loads, it dictates absolute fastening architectures, explicitly requiring a crushing 6850 Nm of torque for the boom cylinder piston nut. Please note: While external cooling, electrical integration, and removal/installation procedures for the Isuzu CC-6BG1T engine are comprehensively mapped, deep internal diesel block reconstruction is explicitly redirected to the dedicated Engine Service Manual.

• Brands: CASE Construction
• Equipment Type: Crawler Excavator
• Manuals Type: Service Manual
• Machine Model: CX290 (Includes systems data for CX210, CX240)
• Serial Number: N/R
• Region: N/R
• Book Code: 9-42860
• Issued: Printed in France, April 2002
• Language: English
• Pages: 582
• File Format: PDF (Searchable)

Core Selling Points

• Elite Dealership-Level Diagnostics: Stop blindly swapping expensive ECM components. This guide transforms the operator's monitor into an advanced interrogation terminal, providing the exact keystrokes to access hidden engineering screens (CHK1-6, DIAG1-6). Mechanics can instantly decode specific proprietary faults, such as E0031 for a linear motor control circuit error or M0090 for a CAN-bus communication failure, ensuring pinpoint electronic troubleshooting.
• Uncompromising Hydraulic Metrology: Master the massive fluid dynamics of the primary pump architecture. The literature details exact calibration procedures using the Multi-Handy 2051 digital tester and CAS 30038 flow kits. Technicians are mandated to verify critical baselines, such as confirming a 34.5 MPa P1/P2 pressure and a 0.25 MPa negative pressure at exactly 2050 rpm with a 305 mA proportional current.
• Micrometer-Level Component Reconstruction: Safeguard against catastrophic internal failures by adhering to absolute factory wear limits. The manual dictates strict tolerances for the travel motors and hydraulic pumps, requiring the immediate replacement of all nine pistons if the cylinder bore clearance exceeds the 0.065 mm maximum limit, and demanding a surface roughness of no more than 0.8 Ra for the valve plate.

Features & Highlights

• Surgical Electrical Verification: Eradicate phantom electrical draws and sensor failures. Utilizing the CAS-30039 service connector kit and a multimeter, technicians are provided with absolute resistance benchmarks—such as proving the health of the coolant thermistor by verifying a strict 6.08 kΩ reading at 20°C, which drops to exactly 0.91 kΩ at 80°C.
• Heavy-Duty Fastening Architectures: Prevent structural separation under extreme earthmoving loads. The documentation outlines rigorous teardown and fastening sequences for the entire chassis, dictating immense torque applications including 1060-1235 Nm for the M30 counterweight bolts, 900-1050 Nm for the M24 travel reduction gear hardware, and a crushing 6850 Nm for the boom cylinder piston nut.
• Dynamic Spool & Fluid Logic Mapping: Navigating the massive 6-solenoid valve banks and main control manifolds is made straightforward. The manual features highly detailed "Dynamic Description" diagrams that trace exact fluid paths for complex multi-function operations, illustrating how the Y4 (red band) 2-stage travel solenoid and the priority swing circuits interact under varying loads.

Problem Solver

• Cures Intermittent Engine Shutdowns: Resolves critical back-up mode emergencies definitively. The diagnostic trees guide mechanics through the exact logic of the A2 Engine Control Box, helping them isolate a damaged electronic acceleration unit (A3) or a failing engine rpm sensor (B41) without relying on guesswork.
• Eradicates Travel Drift & Loss of Power: The step-by-step troubleshooting matrices permanently eradicate tracking issues. It instructs technicians on how to utilize specific pressure test points to verify main pilot system relief and check for internal travel motor leaks, instantly isolating a faulty spool from a destroyed planetary reduction gear.
• Prevents Fatal System Contamination: Recovering from a destroyed main pump requires uncompromising cleanliness to protect replacement parts. This volume outlines the mandatory hydraulic system depressurization and decontamination sequences, explicitly detailing the use of vacuum pumps and Ultra Clean filters to extract microscopic debris from the reservoir.

Important Pre-Purchase Advisories

• Complete "Large Format" Schematics Included: Unlike many digital copies that omit the physical fold-out inserts, this specific manual fully incorporates the original large-format electrical wiring diagrams and complex hydraulic circuit charts (OEM Reference 7-27622GB) at the end of the file. Technicians receive 100% unbroken end-to-end component routing.
• Dedicated Engine Block Focus: In strict adherence to the manufacturer's publication strategy, this manual exhaustively covers engine removal, installation, electronic acceleration circuits, and external sensor diagnostics. However, the deep internal mechanical teardown of the Isuzu diesel engine block is explicitly redirected to a dedicated Engine Service Manual.

Table of Contents

• Safety, General Information and Standard Torque Data
  • General information
  • Safety
  • Standard torque data for cap screws and nuts
• Electrical and Electronic Circuit and Troubleshooting
  • Special tools
  • General location of the components (outside the cab)
  • General location of the components (inside the cab)
  • Operating principles
    • Engine checks
    • Work mode selection
    • H/S/L mode checking
    • Auto mode checking
    • Acceleration checking
    • Engine idle checking (automatic/manual)
    • Breaker mode checking
    • Back-up mode
    • Function locking
    • Power boost
    • Swing brake
    • Travel mode
    • Supply cut-off delayed
    • Protection by power transistor
    • Coolant temperature indicator
  • Access to monitor displays
    • Machine condition
    • Diagnostic code
    • Machine history
    • Re-initialisation
  • Warning messages
    • Message display
  • Excavator model selection procedure
    • Changing the language code
  • Changing the access code for the anti-theft system
  • Troubleshooting
    • Prior inspections
    • Reading the organisation charts
    • Procedures
    • Fuel
    • Add coolant solution
    • Travel
  • Electrical inspection of components
    • Inspection equipment
    • Proportional solenoid
    • Pressure sensor
• Inspection and Maintenance of Batteries and Connecting a Booster Battery
  • Safety instructions
• Removal and Installation of the Tracks Set
  • Special tools
  • Tracks set
    • Description
    • Removal
    • Installation
  • Upper roller
    • Description
    • Removal
    • Reconditioning
    • Disassembly
    • Inspection
    • Assembly
    • Installation
• Travel Motor / Reduction Gear Assembly
  • Removal and installation
  • Disassembly
  • Inspection
  • Assembly
• Pressure Release and Decontamination of the Hydraulic System, Use of the Vacuum Pump and Bleeding the Components
  • Decontaminating the hydraulic circuit
• Specifications, Troubleshooting, Inspections and Hydraulic Pressure Setting
  • Special tools
  • Preparation before inspection
    • Releasing pressure in the hydraulic system
  • Location of secondary relief valves
  • Main pilot system relief
  • Checking for leaks on the travel motor
  • Checking the swing motor for leaks
  • Troubleshooting
    • Travel drift
• Hydraulic Reservoir
  • Removal and installation
• Main and Pilot Pumps
  • Removal and installation
• Main Hydraulic Control Valve
  • Removal and installation
  • Disassembly and assembly
    • Description
    • Disassembly
    • Inspection
    • Assembly
• Attachment Cylinders
  • Removal and installation
  • Disassembly and assembly
    • Boom cylinder description
    • Bucket cylinder
• Hydraulic Swivel
  • Removal and installation
  • Disassembly and assembly
• Pilot Blocs
  • Removal and installation
  • Servo control and return manifold block
    • Removal and installation
• Swing Motor
  • Removal and installation
  • Disassembly and assembly
• Main Hydraulic Pump
  • Disassembly and assembly
• Hand Control Levers
  • Disassembly and assembly
• Foot Control Levers
  • Disassembly and assembly
• Six-Solenoid Valves Block
  • Identifying the ports and the solenoid valves
  • Section
  • Disassembly and assembly
  • Inspection
• Caution Valve
  • Disassembly and assembly
• Safety Valve
• Hydraulic Functions
  • List of functions
  • Controls in neutral position
  • Travel high speed circuit
  • Low speed travel circuit
  • Straight-line travel circuit
  • Swing circuit
  • Swing variable priority circuit
  • Boom raising circuit
  • Boom lowering, load holding circuit
  • Boom lowering additional flow circuit
  • Boom lowering anti-vibration circuit
  • Dipper extending, load holding valve circuit
  • Dipper retracting circuit
  • Dipper retracting additional supply circuit
  • Bucket opening circuit
  • Bucket closing circuit
  • Crusher circuit
  • Breaker circuit
• Travel Hydraulic Motor Assembly and Disassembly
  • Description
  • Disassembly
  • Inspection
  • Assembly
• Upperstructure
  • Upperstructure, turntable and counterweight
  • Boom, dipper and bucket
    • Dipper
      • Description
      • Removal
      • Installation
    • Boom
      • Description
      • Removal
      • Installation
  • Seat and seat belt
    • Operator’s seat
      • Description
      • Removal
      • Repose
    • Safety belt
      • Removal
      • Repose
  • Cab and cab equipment
    • Cab
      • Removal
      • Installation
  • Air conditioning unit disassembly and assembly
  • Large format hydraulic and electrical schematics