Emerson Shafer ECAT - Hydraulic Fluid Specifications; Accumulator System Introduction and Warnings

Installation, Operation and Maintenance Manual
VA-DC-000-1952 Rev. 0 April 2021
10
Section 2: Installation
Installation
2.7 Hydraulic Fluid
The ECAT actuators are shipped with the reservoir lled to operation level. Before commissioning
and periodically afterwards, check to ensure the uid level is correct. The reservoir is equipped
with a sight gauge. Should hydraulic uid need to be added or replaced, use only factory approved
hydraulic uid.
This specication covers hydraulic uids which are approved by engineering for use in the ECAT
system at a temperature range from -50 °F to 140 °F (-46 °C to 60 °C).
2.7.1 Approved Fluids
Standard Fluid [use with -20 °F to 140 °F (-29 °C to 60 °C) applications]
ConocoPhillips Megaow™ AW HVI Hydraulic Oil 22
Shell Tellus S2 V 22
Mobil DTE 10 Excel™ 22
Low Temperature Fluid [use with -50 °F to 140 °F (-46 °C to 60 °C) applications]
Mobil Univis™ HVI 13
Although other brands of uid matching the same specications may be used, to maintain the
warranty and ensure trouble free operation, always check with the factory before substituting any
other uid.
2.8 Accumulator
2.8.1 Introduction
The ECAT Actuator is equipped with a hydraulic accumulator. As the accumulator utilizes the
pressurized pipeline gas, the ECAT will be in an unpressurized state when shipped from the factory.
When using this procedure, refer to the ECAT Actuator General Arrangement drawing and Hydraulic
Schematic for the unit being worked on. Schematics shown in this document are for illustration
purposes only.
!
WARNING
This unit contains high-pressure hydraulic uid and high pressure pipeline gas. Exercise caution when
performing any type of maintenance. Wear proper safety attire and required personal protective
equipment, including safety glasses.