Case CX350B, CX370B Crawler Excavator Service Manual Workshop Guide

Manual Included: • Service Manual: 1484 pages Specifications: • Brand: New Holland • Model: CX350B, CX370B • Type: Excavator • Manuals: Service Manual • Publication Numbers: 47945155 (Nov 2015) • Language: English • Format: PDF Description Table of Contents General Information Engine Fuel System Electrical systems Undercarriage Drive Train Upper structure Hydraulics Upper structure Hydraulic Schematics Electrical Schematics Manual Extract: Pressure Boost Control 1) During upper operation (upper pressure sensor = ON), the next time the high-load conditions are met, the boost solenoid valve on the 5 stack solenoid valve comes ON, and the main relief valve pressure rises from 34.3 MPa (343 bar / 4975 psi) to 36.8 MPa (369 bar / 5337 psi). Conditions: When the engine load ratio rises and the P1 or P2 pump pressure is boosted. 2) Auto power boost (ended by time restriction) When the work mode is SP or H, the boost continues a maximum of 8 seconds, then is automatically ended (boost solenoid = OFF). When the work mode is A, this time restriction is eliminated and the pressure boost is always available. 3) Auto power boost (ended by operation stop) Even before the time limit for auto power boost, if the upper pressure sensor goes OFF, the boost is ended. 4) Boost prohibition During travel (travel pressure sensor = ON) or the breaker is in use