The Couplers Do Not Connect Or Disconnect; The Couplers Do Not Stay Connected - Holmatro AHS 1400 FDU Manual

7.6

The couplers do not connect or disconnect

/i
Possible cause
There is pressure in the system.
The couplers are dirty on the front.
The tool and/or hose are under pressure.
The pump is under pressure.
The female coupler is faulty.
The couplers are not placed properly in line with
each other for connecting.
The couplers are not properly placed in line with
each other for disconnecting.
The snap ring of the female coupler is blocked by
dirt.
The deadman's handle of the tool is faulty.
7.7

The couplers do not stay connected

/i
Possible cause
The external ring jams during connecting.
The locking mechanism in the female coupler does
not work.
The female coupler is faulty.
7.8 The tool is not operating or no longer operating satisfactorily
/i
Possible cause
One or more couplers are not connected properly. Disconnect and reconnect the coupler(s).
There is no oil left in the pump.
AHS
Solution
Set the pump in its "neutral" position.
Clean the couplers.
Use the pressure relief tool to release the
pressure. Refer to section 5.6.
Depress the foot pedal at the "RELEASE" side.
Have it repaired by a Holmatro Certified
Technician.
Position both couplers properly in line with each
other and press them together in one smooth
action.
Support and guide the male coupler when
disconnecting.
Check the snap ring of the female coupler and
clean it.
Have it repaired by a Holmatro Certified
Technician.
Solution
Hold the hose at the bending restriction during
connecting.
• 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.
Have it repaired by a Holmatro Certified
Technician.
Solution
Add hydraulic oil.
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