Control Of Hydraulic System Tightness; Checking The Technical Condition Of Hydraulic Connectors And Sockets - PRONAR PT512 Operator's Manual

Pronar PT512
User is obliged to perform only the following maintenance work on the hydraulic system:
• visual inspection and control of system tightness,
• inspection of the technical condition of hydraulic connectors.
5.4.2

CONTROL OF HYDRAULIC SYSTEM TIGHTNESS

Scope of maintenance
Hitch the trailer to a tractor.
Connect all hydraulic system lines according to instructions in Operator's
Manual.
Clean connectors and cylinders (tipping cylinder, supports and possible
hydraulic brake cylinders).
Make a test tipping of loading case to the rear and sideways.
Press tractor brake pedal several times.
Inspect hydraulic lines and cylinders for tightness.
If oil on hydraulic cylinder body is detected, locate the source of leak. Inspect seals when
cylinder is completely extended. Minimum leaks (symptoms of "sweating") are permissible,
but if leaks in form of "droplets" are detected, stop using machine until fault is removed. If the
fault is related to brake cylinders, stop using the trailer until fault is removed.
Check tightness:
5.4.3 CHECKING THE TECHNICAL CONDITION OF HYDRAULIC CONNECTORS
AND SOCKETS
Hydraulic connectors and sockets used for connecting the second trailer must be in good
technical condition and kept clean. Each time before connecting, check if tractor sockets or
connectors of second trailer are in good condition. Tractor and trailer hydraulic systems are
If the trailer is equipped with hydraulic brake system.
• after first week of use,
• every 12 months of use.
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CHAPTER 5