Textron Jacobsen G-Plex III Mode D'emploi page 48

9 LUBRICATION & MAINTENANCE
9.20 HYDRAULIC OIL FILTER
The hydraulic oil filter MUST be replaced when:
• 250 hours of operation occurs.
• Yearly.
• After a major component failure.
• If you notice the presence of water or foam in
the oil.
• A rancid odour is detected (indicating
excessive heat).
Always replace the hydraulic filters when changing
oil.
When replacing the hydraulic oil filter, apply a light
film of clean oil to the rubber seal. Screw filter on
until the seal contacts the oil filter base, then tighten
1/2 turn more.
NOTE: DO NOT use wrench when replacing
the filter, use hand pressure ONLY.
9.21 HYDRAULIC OIL
The hydraulic oil MUST be drained and replaced
when:
• 250 hours of operation occurs.
• Yearly.
• After a major component failure.
• If you notice the presence of water or foam in
the oil.
• A rancid odour is detected (indicating
excessive heat).
Always replace the hydraulic filters when changing
oil.
To drain the hydraulic oil, remove the hydraulic oil
filters.
Once the hydraulic oil is replaced, the air must be
purged from the system. Operate the unit for five
minutes to stabilize the oil level.
Once the air is purged and the oil level is stabilized,
fill the tank to its proper level.
The hydraulic fluid reservoir is filled at the factory
with biodegradable hydraulic oil.
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JACOBSEN G-PLEX III Series: FH & FJ
SAFETY AND OPERATORS MANUAL
If desired, mineral oil may be used in place of the
biodegradable hydraulic oil.
NOTE: Use of mineral oil will compromise all
biodegradable properties of the biodegradable
hydraulic oil.
When changing to mineral oil, drain the reservoir and
replace the hydraulic oil filters. The system does not
have to be flushed out when changing over. As a
mineral oil alternative to the biodegradable hydraulic
oil, a straight-viscosity ISO 68 type fluid is
recommended for higher temperature environment.
Contact with hydraulic oil can damage your skin.
Use gloves when working with hydraulic oil. If
you come in contact with hydraulic oil, wash it off
immediately.
Dispose of used hydraulic oil in accordance with
local regulations.
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