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QUICK COUPLERS
The DOA power packs and hydraulic tools are equipped with flush-face quick couplers as those
one shown in the picture.
The following paragraph supplies information about the couplers and their use.
The standard quick couplers for hydraulic tools recommended by the ETHMA association are:
FLUSH-FACE QUICK COUPLERS
A COMPLETE QUICK COUPLER consists of a male and female element. (see picture)
The flush-face quick couplers are STANDARDIZED, and they can be found at the major
manufacturers.
The flush face quick couplers grant the best values of oil slipping, generate minimum pressure
drops, are easy to clean, do not drip during the operation of even accidental connection /
disconnection, and above all they are perfectly sealed out the dirt. This is a very important
characteristic for preventing oil contamination and damages to the tools.
\FLOW DIRECTION AND INSTALLATION OF THE QUICK
COUPLERS
The ideal flow direction is from MALE
→
FEMALE.
An arrow is punched on the couplers showing the right direction.
The couplers must be installed on the flexible hose, power packs and tools, respecting the
sequence previously described. The following illustration shows the right installation of the
couplers on the hoses. If the couplers are properly installed, wrong or inverted connection will be
impossible and it won’t be necessary to pay attention making a connection. Every coupler will be
connected in the right way.
