EN
XR4360 (C)
916.000.966_006
35
7.3
The couplers do not stay connected
/i
7.4
The tool does not work or does not work properly
/i
Possible cause
Solution
The external ring jams during connecting.
Hold the hose at the bending restriction during
connecting.
The locking mechanism in the female coupler does
not work.
•
Clean the female coupler with clean running
water.
•
Dry it and treat the inside of the external ring
with preservative oil.
•
Place and remove the dust cap or male
coupler repeatedly until the external ring
springs back.
The female coupler is faulty.
Have it repaired by a Holmatro Certified
Technician.
Possible cause
Solution
One or more couplers are not connected properly. Disconnect and reconnect the coupler(s).
There is no oil left in the pump.
Replenish the oil.
There is air in the system.
CORE™ system:
•
Disconnect the hose from the tool.
•
Let the pump run idle for one minute.
•
Connect the tool.
•
Open and close (entirely) the tool once.
Dual-hose system:
•
Disconnect the hoses from the tool and
connect them to each other.
•
Let the pump run idle for one minute.
•
Disconnect the hoses and connect the tool.
•
Open and close (entirely) the tool once.
The pressure relief valve on the pump is in the
pressure relief position (only for the dual-hose
system).
Set the pressure relief valve on the pump to the
operation position.
The pressure relief valve on the pump is open
(only for the CORE™ system).
Close the pressure relief valve by using a
screwdriver to turn it anti-clockwise as far as the
stop.
The change-over valve on the pump is in the
wrong position (only for the dual-hose system if
present).
Set the change-over valve to the correct position.
The pump does not build up any pressure.
See the user manual of the pump.
