Page 21 of 28 – Operation and Maintenance Instructions for Offline Filtration Trolley OFT20 & OFT-HV
Document No: E1412015-1488-M-02
HYDAC Pty Ltd - 109-111 Dohertys Road, Altona North, Victoria 3025, Australia
Telephone: +61 (03) 9272 8900 ; Fax: +61 (03) 9369 8912 ; Website:
Changing the Filter Element
Removing Element
The OFT must not be in use.
Remove oil drain plug. Drain oil into container.
Unscrew filter bowl. Drain fluid into a suitable container (The oil must not be put
back into the system unless it is first cleaned!).
Remove filter element from element spigot in filter head (check surface of
element for contamination residue and larger particles; these can indicate
damage to components).
Clean filter bowl and filter head; particular attention must be given to the threads!
Examine filter, especially sealing surfaces, for mechanical damage.
Check O-rings
– and replace if necessary
Fitting new Element
Wet the sealing surfaces and thread on the filter head and bowl/end cover, as
well as the O-ring, with clean operating fluid.
Before fitting a new filter element, check that the designation corresponds to that
of the old element.
Lubricate seal and sealing cone on external diameter with clean operating fluid.
Apply aluminium paste or another suitable lubricant to threads on filter head and
bowl.
Screw in oil drain plug
Check the filter for leakage.
OFT20
Screw in filter bowl fully and tighten to 40 Nm
OFT-HV
Do not torque, screw in filter bowl fully (metal to metal contact) and then
unscrew by one quarter-turn.
NOTICE
Unsuitable/incorrect filter element
The medium is not filtered
► Use only filter elements with the type code suffix ON or ECON2
(for example:
►
OFT20
200MX 010 ECON2/-B3.5
►
OFT-HV
280 D 010 ON /-QPG1
