Check Valves; Description; Maintenance - Manitowoc Grove TMS800E Service And Maintenance Manual

HYDRAULIC SYSTEM

CHECK VALVES

Description

There are three check valves utilized in the crane hydraulic
system. The check valves are used to block flow in one
direction and allow free or restricted flow in the opposite
direction.
The crane's hydraulic dual return circuit has an in-line check
valve in one of the two return lines and two in the accessory
drain circuits. It is used to force hot return oil in the other
return line to the hydraulic oil cooler.
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Maintenance

Removal
1. Tag and disconnect the hydraulic lines from the valve.
Cap or plug the lines and ports.
Installation
1. Connect the hydraulic lines to the ports on the valve as
tagged during removal.
2. Verify proper operation of the valve. Check hydraulic
connections for leaks.
Published 01-29-2014, Control # 496-00
TMS800E SERVICE MANUAL