Holmatro HTS 550 A Manual página 33

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
Possible cause
The couplers are dirty on the front.
The tool and/or hose are under pressure. This can
happen due to temperature fluctuations during
storage and transport.
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 female coupler is faulty.
7.3 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.
7.4 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).
The pressure relief valve on the pump is in the
"neutral" position.
The pump not in a level position.
There is not enough oil in the oil tank.
HTS/HTW/FTW
Solution
Clean the couplers.
Use the pressure relief tool to release the
pressure. Refer to section 5.4.
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 replaced 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 threat the inside of the external ring
with preservative oil.
• Place and remove the dust cap repeatedly
until the external ring springs back.
Have it replaced by a Holmatro Certified
Technician.
Solution
Set the pressure relief valve on the pump to the
"operation" position.
Place the pump horizontally.
Bring the oil level back to the correct level, after
setting all tools in the output position.
916.000.901_000
EN
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