PRONAR T386, Operator'S Manual, Page: 137 / 162

SECTION 5 Pronar T386
5.27
If oil is found on hydraulic cylinder body, check origin of leak. Inspect seals when hydraulic
cylinder is completely extended. Minimum leaks are permissible with symptoms of
"sweating", however in the event of noticing leaks in the form of "droplets" stop using the
trailer until faults are remedied. If unreliability is evident in brake cylinders do NOT use trailer
with damaged system until faults are remedied.
Checking tightness:
•
after the first week of use,
•
every 12 months of use.
5.4.3 CHECKING TECHNICAL CONDITION OF HYDRAULIC CONNECTIONS AND
SOCKETS.
Hydraulic connections and sockets designed for connection with second trailer must be in
good working condition and kept clean. Each time before connecting check if socket in tractor
or connection of second trailer are maintained in good working condition. Tractor and trailer
hydraulic systems are sensitive to the presence of permanent contamination, which may
cause damage to precision system components (jamming of hydraulic valves, scratching of
cylinder surfaces etc.).
Inspection of hydraulic connections and sockets:
•
each time before connecting trailer to tractor or before connecting the
second trailer.
5.4.4 REPLACEMENT OF HYDRAULIC CONDUITS
Rubber hydraulic conduits must be replaced every 4 years regardless of their technical
condition. This should be entrusted to specialised workshops.
Replacement of hydraulic conduits:
•
every 4 years.