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MODEL 220
HYDRAULIC
IMPACT HAMMER
IV.
MAINTENANCE AND ADJUSTMENTS
I.
HYDRAULIC OIL (CONTINUED)
d. Clean or replace filter elements at the first indication that they are dirty or
ineffective.
e. Have hydraulic oil tested by the local supplier on a regular basis.
Laboratory oil analysis can detect contamination, products of hydraulic
component wear, water, oxidation or loss of viscosity long before it is visible
to the eye and before significant component damage has occurred.
f.
Prevent water from entering the hydraulic system. Even minute amounts of
water in the hydraulic oil will accelerate oil deterioration and oxidation.
g. DO NOT operate the unit if oil temperature exceeds 160°F (71°C).
Excessive hydraulic oil temperature will accelerate oil deterioration and
oxidation.
Mixing of different manufacturers' hydraulic oil is not recommended. However, it
can be done if the oils are miscible (contain the same base and additive). It may be
necessary to contact an oil supplier to determine this.
New power units are shipped with CHEVRON Clarity AW46 hydraulic oil. This oil
exceeds the requirements of both the E.P.A. and U.S. Fish and Wildlife Service for
non-toxicity and is inherently biodegradable. ADDING ANY OTHER OIL FROM
THE LIST BELOW, WILL CONTAMINATE THE CLARITY OIL AND THE SYSTEM
WILL NO LONGER BE ENVIRONMENTALLY FRIENDLY.
Should the customer choose to use an alternate oil, the following recommendations
may be used when replacing oil in the hydraulic system.
FIRST Preference Group:
CHEVRON
MOBIL
SUN
SECOND Preference Group:
ARCO
CHEVRON
PHILLIPS
SHELL
Clarity AW46
DTE-15
2105
Duro AW46
Hydraulic AW46
Magnus A46
Tellus 46
IV-6
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