Checking Hydraulic System Tightness - PRONAR T683 Operator's Manual

Pronar T683
DANGER
Do NOT tip trailer with unreliable hydraulic tipping system.
Do not use the trailer if the support hydraulic system is out of order.
Do not tip the trailer sideways when its side wall opening hydraulic system is unreliable.
Do NOT use the trailer if hydraulic brake system is unreliable.

5.4.2 CHECKING HYDRAULIC SYSTEM TIGHTNESS

Required service actions
Hitch trailer to tractor.
Connect all hydraulic system lines according to service instructions.
Clean the connectors and cylinders (tipping cylinder, support cylinder,
hydraulic brake cylinders and side wall opening cylinders).
Conduct test tipping of load box sideways and backwards.
Open and close the side wall several times.
Press tractor brake pedal several times
Check tightness of hydraulic system, inspect cylinders and hydraulic lines.
In the event of confirmation of oil on hydraulic ram cylinder bodies ascertain origin of leak.
Inspect hydraulic seals when ram 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:
If trailer is equipped with hydraulic brake system.
• After a week of use
• every 12 months of use.
5.20
SECTION 5