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916.000.967_005
CU4007
7
Troubleshooting
7.1
General
Consult the Holmatro dealer if the listed solutions do not give the desired result, or in case of other
problems. For malfunctions or repair, always specify the model and serial number of the equipment.
7.2
The couplers do not connect or disconnect
/i
7.3
The couplers do not stay connected
/i
Possible cause
Solution
The couplers are dirty on the front.
Clean the couplers.
The tool and/or hose are under pressure. This can
happen due to temperature fluctuations during
storage and transport.
Use the pressure relief tool to release the
pressure.
The pump is under pressure (dual-hose system).
Set the pressure relief valve on the pump to the
"neutral" position.
The female coupler is faulty.
Have it repaired by a Holmatro Certified
Technician.
The couplers are not placed properly in line with
each other for connecting.
Position both couplers properly in line with each
other and press them together in one smooth
action.
The couplers are not properly placed in line with
each other for disconnecting.
Support and guide the male coupler when
disconnecting.
The snap ring of the female coupler is blocked by
dirt.
Check the snap ring of the female coupler and
clean it.
The deadman’s button of the tool is faulty.
Have it repaired by a Holmatro Certified
Technician.
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 threat the inside of the external ring
with preservative oil.
•
Place and remove the dust cap repeatedly
until the external ring springs back.
The female coupler is faulty.
Have it repaired by a Holmatro Certified
Technician.
