OPI-POWER LIFT HF 7000-8000-V1.0-EN
33
Time frame
Position
Type of
maintenance
Person in
charge
Maintenance plan
Annually
1
12
11
10
9
8
7 6 5
4
3
2
1 x / 12
Trained ser-
vice personnel
Hydraulic hose lines
Storage and duration of use
Excerpt from DIN20066:2002-10
• For permitted loading, hoses undergo a natural
change. This limits the duration of use.
• Improper storage, mechanical damage and unper-
mitted loads are the most frequent cause of break-
downs.
• The duration of use of a hose line including any stor-
age time should not exceed six years.
Hose lines are to be replaced if/when,
•
Damage to the outer coating up to the insert (chafe
marks, cuts, cracks).
•
The outer coating becomes brittle (crack formation).
• Deformation from the natural shape in the depres-
surised and pressurised conditions.
• Leakage.
•
Damage or deformation of the mounting fixture.
•
Meandering of the mounting fixture.
•
The lifetime has been exceeded.
Repair of the hose line using the implemented hose /
mounting fixture is not permitted.
Extending the replacement intervals given in the
guideline is possible if the inspection for safe-work con-
dition is done in adjusted, shortened time frames, if re-
quired and by competent personnel.
If there is an extension of the replacement interval, no
situation may occur which could result in injury of em-
ployees or other personnel.
Annually
1
12
11
10
9
8
7 6 5
4
3
2
1 x / 12
Trained ser-
vice personnel
Excerpt from BGR237:
Specifications for the hydraulic hose lines.
Normal specification:
Recommended exchange intervals:
6 years (operation duration including max. 2 years
storage time).
Increased demands e.g. by
• Increased usage times e.g. multi-shift, short cycle
times and pressure impulses.
•
Increased exterior and interior (due to media) influ
-
ences which significantly reduce the lifetime of the
hose lines.
Recommended exchange intervals:
6 years (operation duration including max. 2 years
storage time).
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