13
USE OF THE QUICK COUPLERS
CONNECTION
•
Make sure that the contact surfaces of the couplers are clean and if necessary wipe the dirt
with a rag.
•
Position the male coupler towards the female one, centring them.
•
Press the male coupler against the female one.
•
A “click” indicates that the proper connection is made.
IF A PROPER CONNECTION CANNOT BE MADE EVEN PRESSING THE COUPLERS WITH
STRENGTH, IT IS POSSIBLE THAT ONE OR BOTH COUPLERS ARE PRESSURIZED .
FOR MAKING THE CONNECTION IT WILL BE THEN NECESSARY TO TAKE AWAY
PRESSURE BY UNSCREWING THE COUPLERS FROM THEIR FITTINGS AND ALLOW
SOME OIL DROPS TO COME OUT.
IT IS ALWAYS A GOOD PRACTICE FOR AVOIDING PRESSURE TRAPPING BEHIND THE
COUPLERS, FIRST TO CONNECT THE RETURN HOSE AND DISCONNECT IT LAST
DISCONNECTION
•
Position the knurled bushing of the female coupler so that its slot is in front of the steel ball.
•
Push the bushing against the steel ball.
•
The male coupler will be released and a “click” will show the disconnection.
OTHER ADVICE
•
The connection/disconnection of the couplers must be done always WITHOUT OIL
CIRCULATION – WITHOUT PRESSURE.
•
Disconnect and connect the tools from hoses and power source, just after having set the
level of the flow switch valve in OFF POSITION.
•
The quick couplers must be dismounted from the power pack only with the engine OFF.
•
If you mount or dismount the quick couplers, use only the right wrenches. If improper tools
are used the coupler hexagon can be easily spoiled.
•
The quick couplers CANNOT BE REPAIRED. Discard immediately damaged or deformed
couplers and not force the connection if one coupler is damaged. In this case the damaged
coupler will immediately damage also the other good interface.
