10
FLEXIBLE HOSES
THE POWER PACK ARE USUALLY EQUIPPED WITH A COUPLE OF HYDRAULIC FLEXIBLE
HOSES OF 7 M. OF LENGTH COMPLETE WITH FLUSH-FACE QUICK COUPLERS
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The following general information can be useful in case of new hose supply o when it is
necessary to use hoses with different extensions than the standard ones.
THE FLEXIBLE HOSE consists of a couple of parallel hoses (a PRESSURE hose and a
RETURN hose) that connect the hydraulic tool to the power source..
When it is possible, do not use long hoses. The flexible hose should be long enough to permit a
good manoeuvrability of the tool but not too long, as a very long hose can be heavy, difficult to
transport and to handle and may also cause loss of power.
A flexible hose of ten meters is adequate in most of the cases to guarantee a good
manoeuvrability. If a longer hose is necessary, just connect a second extension hose to the first
one
.
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THE FLEXIBLE HOSE ALWAYS REMAINS FULL OF OIL. THE FIRST TIME A NEW HOSE
IS USED, IT WILL GET FULL OF OIL TAKING IT AWAY FROM THE HYDRAULIC CIRCUIT.
IT WILL BE THEN NECESSARY TO RESTORE ADEQUATELY THE OIL LEVEL IN THE
TANK.
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THE FLEXIBLE HOSES ARE ALWAYS IN CONTACT WITH THE GROUND AND
ARE SUBJECT TO STRONG VIBRATIONS AND ABRASION, THUS THEY
SHOULD BE RESISTANT TO WEAR AND ABRASION
.