Caterpillar 311D 312D 314D Hydraulic Excavators Global Service Learning Manual – PDF DOWNLOAD

Page 139

SERV1851 02/08

- 139 -

Text Reference Main Control Valve

RETURN HYDRAULIC SYSTEM Slow Return Check Valve

Bypass Check Valve

Cooler Bypass Valve Group

Return Filter

Cooler

Tank Case Drain Filter

105

Return Hydraulic System The return hydraulic system transfers all of the hydraulic oil that has been used in the system to do work back to the hydraulic tank. The return hydraulic system has the following components: - slow return check valve - cooler bypass check valve group - hydraulic oil cooler - hydraulic oil filters - hydraulic oil tank


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.
Caterpillar 311D 312D 314D Hydraulic Excavators Global Service Learning Manual – PDF DOWNLOAD by www.heydownloads.com - Issuu