Ammann APR 4920 Traducción De Instrucciones Originales página 44

5. Maintenance
5.7.8 Hydraulic hose lines
B8299325.cdr
1 Ammann Article No.
2 Manufacturer/Month and year of manufacture
3 Max. operating pressure
The function of hydraulic hose lines must be tested at regular in-
tervals (minimum once a year) by an expert (with a knowledge of
hydraulics).
Hose lines must immediately be replaced in the following in-
stances:
•
Damage to the outer layer to the inner lining (abrasion marks,
cracks, cuts, etc.).
•
Brittleness of the outer layer (cracking of hose covering).
•
Unnatural deformations of the hose line. This applies to both a
pressureless and pressurised condition (e.g. layer separation,
blister formation, crushed areas, kinks).
•
Leaks.
•
Damage or deformation of hose fittings (impaired sealing
function).
•
Hose slips out of the fitting.
•
Corrosion of fitting (degrading of function and strength).
•
Improper installation.
•
Use beyond the expiry date of max. 6 years.
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