Textron PT-3500, Руководство оператора

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Revolution Series PT-3500 / PT-7500 Puller Tensioner Page 86
Maintenance
Hydraulic System
When working on any hydraulic connections or parts
:

Be sure there is no pressure on fluid at the location of the work.

Make sure nothing will move or drop when loosening a connection.

Collect all the hydraulic fluid which will drain from the loosened connection.

Use oil-dry or some absorbent material to soak up any fluid spills to keep working surfaces from
becoming slippery.

Cover all open connections to prevent loss and contamination to the hydraulic system.
When the hydraulic system has a problem or is opened at any point, filters and fluid should be replaced to
prevent contamination or damage to the system.
Hydraulic System/Hose Inspection

Check the outer surface of the hoses for
damages, e.g. tears, bends, cuts, loosened
parts, abrasions, brittle spots, etc.

Check the hoses for deformations (when
pressure free as well as when under
pressure).

Special attention should be given to the
connection between hose and fitting. If
hose, fitting, or component damages are
identified, they must be replaced
immediately.

All hydraulic hoses must be replaced after
2,500 working hours or at the latest every
10 years (starting from the year of the
construction of the machine.
(
See Preventive
Maintenance Schedule section.)
WARNING Never check for hydraulic leaks with
hands or body. When under pressure, leaks can
puncture skin. Small or pinhole size leaks may be
invisible during visual inspection. (Using a piece of
cardboard or wood is recommended).