7.4 Service
7.4.1 Visual check: Hydraulic lines (pipes and hoses)
Immediately repair any damage of this kind to hydraulic lines:
►
External leakages
►
Visible signs of external damage cracks, kinks, detaching, cuts, abrasion, material fatigue etc.
►
Hose deformation when unpressurised and when pressurised
7.4.2 Visual check: Electrics (cables, connections, plugs)
Immediately repair any damage of this kind to electrical systems:
►
Visible signs of external damage, like brittle insulation, abrasion, kinks, material ageing etc.
►
Corroded electrical plugs and sockets
7.4.3 Checking electrical equipment
DAMAGE
Testing electrical equipment
►
The testing must only be performed by an electrically skilled person or by electrically instructed
personnel.
►
Only use suitable measurement and test devices.
►
The high-voltage test values or results of the insulation test may be impaired due to old or
contaminated hydraulic uid.
DAMAGE
Operating electrical systems safely
You can only properly and reliably operate electrical systems or equipment in a safe manner if their
condition is guaranteed to be perfect at all times. The German DGUV Vorschrift 3 accident prevention
regulations species inspection intervals and test methods. The associated instructions (DA) detail how
the safety goals can be achieved.
Recurring inspections acc. to DGUV Vorschrift 3
■
Visual check
■
Check PE and equipotential bonding
■
Check insulation
■
Check shutdown conditions
■
Check circuit breakers
■
Measure earth
■
Test certificate
7.4.4 Checking and replacing hydraulic hoses
DAMAGE
When handling hydraulic hoses, observe the applicable standards, regulations and rules:
■
ISO 17165-2: Recommended practices for hydraulic hose lines.
■
DGUV Rule 113-015 (BGR 237 – German regulations for occupational insurance schemes) hydraulic
hose lines – “Rules for safe use”.
■
DGUV information sheet no. 015 “Testing and replacing hydraulic hose lines”.
HAWE Hydraulik SE
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