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Inspection criteria for hydraulic
hoses
The following inspection criteria must be ob-
served in the interest of your own safety and to
reduce environmental damages!
Replace hoses, if these fulfil at least one
criterion from the following list:
Damage to the outer layer to the ply (e.g.
¾
chafing, cuts, cracks).
Embrittlement of the outer layer (formation of
¾
cracks in the hose material).
Deformations, which do not correspond with
¾
the natural shape of the hose. Both in pres-
sureless and pressurized condition or in case
of bending (e.g. layer separation, formation of
blisters, squeezing, buckling).
Leakages.
¾
Failure to comply with installation require-
¾
ments.
The max. utilization period of 6 years has
¾
expired.
The date of manufacture on the hydraulic
hoses fitting plus 6 years is decisive. If the
fitting is marked with the manufacturing date
"2018", the utilization period ends in January
2024.
Leaking hoses / pipes and connecting pieces
are frequently the result of:
missing O-rings or seals
¾
damaged or poorly fitted O-rings
¾
brittle or deformed O-rings or seals
¾
foreign objects
¾
loose hose clamps
¾
NOTE
NOTE
Assembly and disassembly of
hydraulic hoses
Use only original spare hoses from HORSCH.
These spare hoses withstand the chemical,
mechanical and thermal loads.
Generally use hose clamps made of stainless
¾
steel when installing hoses.
When installing and disassembling hydraulic
hoses comply with the following notes.
Ensure cleanliness!
Hydraulic hoses must be installed so that the fol-
lowing is ensured under any operating condition:
no tensile loads, except by own dead weight
•
no buckling stress in case of short lengths
•
no falling below the permissible bending radii
•
avoiding external mechanical stresses on the
•
hydraulic hoses
no rubbing of hoses on components or against
•
each other through appropriate arrangement
and fastening
if necessary, protection through protective
•
sheathing
covering sharp-edged components
•
Fasten hydraulic hoses at the intended fas-
¾
tening points.
Hose clamps are to be avoided at locations
¾
where natural movements and changes of the
hose length may be interfered with.
It is not permitted to cover hydraulic hoses
¾
with paint!
NOTE
53
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