Section 3 • Scheduled Maintenance Procedures
REV A
November 2005
3 - 30
GR-12 • GR-15 • GR-20
Part No. 84700
Checklist E Procedure
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 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.
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.
Perform this procedure with the
platform in the stowed position.
1 Disconnect the battery pack from the machine.
Electrocution hazard. Contact
with hot or live circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
2 Open the power unit module tray.
3 Tag and disconnect the hydraulic tank return
hard line from the hydraulic filter head and
remove the hard line from the tank. Cap the
fitting on the filter head.
4 Tag and disconnect the hydraulic pump inlet
hard line and remove the hard line from the
tank. Cap the fitting on the pump.
5 Remove the hydraulic tank retaining fasteners
and remove the hydraulic tank from the
machine.
6 Drain all of the oil into a suitable container.
Refer to Section 2, Specifications, for capacity
information.
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.
7 Clean up any oil that may have spilled. Properly
discard the used oil.
8 Clean the inside of the hydraulic tank using a
mild solvent. Allow the tank to dry completely.
9 Install the hydraulic tank and install and tighten
the hydraulic tank retaining fasteners. Torque to
specification.
Torque specifications
Hydraulic tank retaining fasteners, dry
35 in-lbs
4 Nm
Hydraulic tank retaining fasteners, lubricated
26 in-lbs
2.9 Nm
Содержание GR05-5001
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Страница 104: ...Part No 84700 Rev B Service Manual GR 12 GR 15 GR 20 from serial number GR05 5001...