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Z-45/25 Bi-Energy • Z-45/25J Bi-Energy
Part No. 237062
September 2015
Section 3 • Scheduled Maintenance Procedures
E-1
Test or Replace the Hydraulic Oil
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil and suction strainers may
cause the machine to perform poorly and
continued use may cause component damage.
Extremely dirty conditions may require oil changes
to be performed more often.
Note: Before replacing the hydraulic oil, the oil may
be tested by an oil distributor for specific levels of
contamination to verify that changing the oil is
necessary.
If the hydraulic oil is not replaced at
the two year inspection, test the oil quarterly.
Replace the oil when it fails the test.
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring on the fitting and/or hose end must be
replaced and then torqued to specification during
installation. Refer to Section 2,
Hydraulic Hose and
Fitting Torque Specifications.
1 Place a suitable container under the hydraulic
tank.
2 Remove the drain plug from the hydraulic tank.
Checklist E Procedures
3 Completely drain the tank into a container of
suitable capacity. Refer to Section 2,
Specifications
.
Bodily injury hazard. Beware of hot
oil. Contact with hot oil may cause
severe burns.
4 Tag, disconnect and plug the hydraulic hose
from the hydraulic tank filter at the tank.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
Bodily injury hazard. Beware of
hot oil. Contact with hot oil may
cause severe burns.
5 Remove the hydraulic tank mounting fasteners.
6 Pull the hydraulic tank out slightly to access the
two suction hoses.
7 Tag, disconnect and plug the two suction hoses
on the back of the hydraulic tank.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
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