Case CX235C SR Excavator Service Manual Workshop Guide

Manual Included: • Service Manual: 2731 Pages & 2055 Pages Specifications: • Brand: New Holland • Model: CX235C SR • Type: Excavator • Manuals: Service Manual • Publication Numbers: 47795404 (Feb 2016) & 84577150 • Language: English • Format: PDF Description Table of Contents Content Introduction Engine Hydraulics System Frames and Ballasting Tracks and Track Suspension Cab Climate Control Electrical System Booms, dippers and buckets Dozer Blade and Arm Platform, cab, bodywork and decals Special Tools Index Hydraulic Schematics Electrical Schematics Manual Extract: Relief valve – Check 1. Check that the hydraulic circuits and hydraulic oil are clean, then gradually raise the pressure (inch the operating machine in low idle) and check that no oil leaks to the outside. 2. For the oil, use hydraulic oil with an aniline point of 82 – 113 °C (180 – 235 °F). 3. Do not raise the relief valve above the specified set pressure. 4. Set a difference of at least 2.0 MPa (290 psi) between the set pressure for the main relief valve and for the overload relief valve. 5. Warm up the machine adequately before starting the actual work. Pay attention to the following points in order to avoid sticking due to spool heat shock particularly when starting up with the hydraulic oil temperature or valve temperature low. • Do not operate the main relief valve and overload relief valve right too suddenly after each other. Raise the temperature of each section uniformly and operate in such a way that the hydraulic oil circulates within each actuator. • Fine operations and compound operations generate heat locally due to throttling of individual sections, so do not suddenly perform these operations