Connect The Hydraulic Hoses - Holmatro CU 4007 Manual

EN
5.1.3 Dual-hose couplers
The dual-hose couplers are used on single or dual hoses.
In case of dual hoses, the supply hose and the return hose are bundled together with ties. Each end of
the hose(s) has a female and a male coupler.
If you want to connect or disconnect a tool and/or a hose, you must first set the pressure relief valve on
the pump to the "neutral" position. After connecting the hose(s) and the tool you must set the pressure
relief valve to the "operation" position so you can use the tool.
5.2

Connect the hydraulic hoses

5.2.1 General
WARNING
Never use damaged couplers.
Caution
Never use pliers or similar to connect the hydraulic couplers.
5.2.2 Connect the CORE™ couplers
Refer to Fig. 4.
• Remove the dust caps from the couplers.
• Check the couplers for dirt and damage and clean them if necessary.
• Insert the couplers by holding them against each other and pushing the male coupler with one
action into the female coupler. The external ring of the female coupler must move in the opposite
direction to the arrows.
• Pull both couplers to check whether the couplers cannot be pulled apart with a normal manual
effort.
• Put the dust caps into each other to avoid dirt.
5.2.3 Connect the dual hose couplers
Refer to Fig. 5.
WARNING
Always make sure that the pressure relief valve is in the "neutral" position, before you
connect hydraulic hose(s) to the pump.
• Remove the dust caps from the couplers.
• Check the couplers for dirt and damage and clean them if necessary.
• Push the couplers into each other. The external ring of the female coupler will automatically move in
the opposite direction to the arrows and lock.
• Check whether the couplers can not be pulled apart with a normal manual effort and check that the
snap ring is in the correct position.
• Put the dust caps into each other to avoid dirt.
28 916.000.967_005 CU4007