Hydraulic - Ammann AVH 5020 Traduction Du Mode D'emploi Original

6. Maintenance

6.7 Hydraulic

Before working on the hydraulic make the system
pressureless.
Carry out the change of hydraulic oil while it is still
Attention
warm in accordance to the lubrication plan and the
lubrication table.
Do not start the motor while the hydraulic oil is
draining under any circumstance.
Immediately replace any damaged seals.
Change the return filter element and the air filter
with each change of hydraulic oil.
Change the hydraulic oil also after each major re-
pair on the hydraulic unit.
Collect the drained-off hydraulic oil and dispose it
in an environment friendly manner.
Environment
6.7.1 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.
6.7.2 Check the hydraulic oil level
B3w99009.cdr
• Check the oil level through the oil jauge glass.
• If necessary top up the oil level up to the upper area of the
glass.
1
Attention
2
3
47
If hydraulic oil is missing by the daily hydraulic oil
level control, the components, hoses and con-
nections have to be checked immediately.