horsch Leeb 6 GS, Operating Instructions Manual, Page: 134 / 154

134
9.8.1 Identification of hydraulic
hoses
The identification on the fittings provides the
following information:
(1) Identification of the hydraulic hose manu -
facturer (A1HF)
(2) Manufacturing date of the hydraulic hose
(02 04 = February 2004)
(3) Maximum permissible operating pressure
(210 bar)
3
1 2
Hydraulic hose A1HF 02 04, 210 bar
9.8.2 Maintenance intervals
After the first 10 operating hours and then
every 50 operating hours
¾
Check all components in the hydraulic system
for leaks.
¾
If necessary retighten the screw fittings.
Before each start-up
¾
Check the hydraulic hoses for any apparent
deficiencies.
¾
Remedy chafed sections on hydraulic hoses
and pipes.
¾
Immediately replace worn or damaged hy-
draulic hoses and pipes.
9.8.3 Inspection criteria for
hydraulic hoses
For your own safety and to reduce any
possible environmental impact pay atten-
tion to the following inspection criteria!
Replace hoses, if these fulfil at least one
criterion from the following list:
-
Damage to the outer layer to to the ply (e.g.
chafing, cuts, cracks).
-
Embrittlement of the outer layer (formation
of cracks in the hose material).
-
Deformations, which do not correspond
with the natural shape of the hose. Both in
pressureless and pressurized condition or
in case of bending (e.g. layer separation,
formation of blisters, squeezing, buckling).
-
Leakages.
-
Failure to comply with installation require-
ments.
-
The max. utilization period of 6 years has
expired.
The date of manufacture on the hydraulic
hose fitting plus 6 years is decisive. If the
fitting is marked with the manufacturing
date "2004", the utilization period ends in
February 2010. See also "Identification of
hydraulic hoses".
Leaking hoses / pipes and adapters are
frequently the result of:
- missing O-rings or seals
- damaged or poorly fitted O-rings
- brittle or deformed O-rings or seals
- foreign objects
- loose hose clamps