Issued June 2020
Introduction
Copyright 2020, Heil Environmental
Printed in U.S.A.
15
HYDRAULIC OIL SPECIFICATIONS
Hydraulic fluid is one of the most important component in
hydraulic system. It transmits power, provides lubrication
and cooling function and has following features:
High viscosity index
Long service life
Outstanding cold temperature flow properties
Fast water separation
Excellent anti-wear performance
Long term oxidation stability
Superior rust and corrosion protection
Exceptional shear stability / filterability
Excellent thermal and hydrolytic stability
Anti-foam characteristics
High performance of air release characteristics
Current Heil standard hydraulic oil is Shell Tellus S2 VX 32.
Please see product TDS and MSDS for more detail
information about it. We strongly recommend to use it on
Heil products to get best system performance and oil
service life.
The following oils can be used on Heil products if Heil
standard hydraulic oil (Shell Tellus S2 VX 32) is not
available. But system performance and/or oil service life
may be compromised.
Castrol Dual Range HV 32
Chevron Rando HDZ 32
Mobil DTE 10 Excel 32
Cold weather operation requires special oil considerations.
Viscosity should not exceed 7500 SSU at lowest startup
temperature. Continuous operation should range between
40–1000 SSU for all temperature ranges.
Contamination is a hydraulic system’s worst enemy. DO
NOT let dirt enter the system. Use a clean rag and remove
dirt or other contamination around any system component
before you disconnect or remove it. While you fill the
reservoir, filter the oil through a 200 mesh (or finer)
screen. NEVER use a cloth to filter the oil.
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