Spare Parts List
Change-Over Pressure Filter DFDKN
to DIN 24550
up to 800 l/min, up to 315 bar
DFDKN
40
1.MAINTENANCE
Please follow the maintenance instructions!
1.2INSTALLATION
Before fitting the filter into the system,
check that the operating pressure of the
system does not exceed the permitted
operating pressure of the filter.
Refer to the name plate on the filter!
Important:
When using filters at operating pressures
above 20 bar, robust filter elements of
the type BH4HC must be used for safety
reasons.
1.3COMMISSIONING
Check that the correct filter element
is fitted. Screw in bowl again fully and
then unscrew by one quarter-turn (the
sealing effect will not be improved by
overtightening).
Version 1.x and 2.x:
Loosen both air bleed screws; open spindle
to create hydraulic balance between the
filter sides.
Depressurise filter
housing before
element change!
Switch on the hydraulic system, move the
lever to the centre position and fill filter
via the system (both filter sides are filled).
Close these again as soon as oil begins
exiting at the air bleed screws. After that,
change over to a filter side by throwing the
control lever and check filter for damage.
1.4 TOOLS REQUIRED FOR MAINTENANCE
40-100
160-400
Size
All
DFDKN
100
DFDKN
160
DFDKN
250
2.CHANGING THE ELEMENT
1.1GENERAL
Size
DFDKN
63
Key
for filter head
AF width 27
AF width 36
Allen key for oil
drain plug
AF width 10
AF width 10
Allen key for
air vent
AF width 5
Key for
VD 0 A.1
AF width 27
2.1REMOVING THE ELEMENT
1. Do not switch off the hydraulic system.
2. Establish which filter side is in operation
(indicated by lever on the filter).
3. First equalise the pressure in both filter
sides by opening the spindle. To switch
over, turn lever through 90° – the other
filter side is now in operation. Close
spindle again.
4. Undo air bleed screw (see point
“Venting”) on the filter side that is no
longer in operation by max. 1 rotation;
open oil drain plug of the filter side
that is no longer in operation and drain
contaminated oil into a suitable container
(the oil must no longer be fed to the
system in an uncleaned state).
5. One-piece bowl (1.X):
Unscrew and remove filter bowl.
Two-piece bowl (2.X):
Unscrew and remove bowl cover and
remove grub screw.
6. Remove filter element from element
connector in filter head (check surface
of element for contamination residue
and larger particles; these can indicate
damage to components).
DFDKN
400
2.2FITTING THE ELEMENT
1. Lubricate the sealing surfaces on the filter
housing and cover, as well as the seals,
with clean operating fluid.
2. Before fitting a new filter element, check
that the designation corresponds to that
of the old element. Then lubricate the
O-ring in the element with clean operating
fluid.
3. Place filter element carefully on to the
element spigot.
Additionally for two-piece bowl (2.X):
Fasten with grub screw.
4. One-piece bowl (1.X):
Screw in filter bowl fully.
Two-piece bowl (2.X):
Screw in end cover fully.
5. Close the oil drain plug.
6. Unscrew filter bowl or end cover by one
quarter-turn.
7. One-piece (1.X) or two-piece bowl (2.X):
Open spindle and fill filter side until oil
exits at the air bleed screw.
8. Close air bleed screw and spindle.
9. Check the filter for leakage.
7. Replace or clean filter element
(only W/HC elements can be cleaned).
8. Clean filter bowl/cover, filter head and
as applicable dirt retainer; particular
attention must be given to the threads!
9. Examine filter, especially sealing
surfaces, for mechanical damage.
10.Check O-rings – and replace if necessary.
Type
VD
Max. torque
100 Nm
50 Nm (for indicator A, LE, LZ)
NOTICE:
Contamination or incomplete pressure
release on disassembly can lead to seizing of
the bowl thread.
Filter elements which cannot be cleaned
must be disposed of in accordance with
environmental protection regulations.
EN 7.553.1.E0/08.17
1.5TORQUE VALUE FOR CLOGGING
INDICATORS
2.3VENTING
After the element has been changed, the cleaned filter side
must be vented.
Air bleed screws are provided for this purpose on the filter
head (for DFDKN… version 1.x and 2.x).
Venting DFDKN 160 to 400….
Version 1.2 and 2.2
1
Venting DFDKN 40 to 100 – all versions
2
3
1
2
3
zzLeft filter side:
Open air bleed screws 1 and 2.
zzRight filter side:
Open air bleed screws 1 and 3.
1 = Clean side
2 = Contaminated side left
3 = Contaminated side right
zzLeft filter side:
Open air bleed screws 1 and 2.
zzRight filter side:
Open air bleed screws 1 and 3.
1 = Clean side
2 = Contaminated side left
3 = Contaminated side right
2.4PRESSURE EQUALISATION SPINDLE DFDKN 160 TO 400
Removal:
zzSwitch off the system!
zzUnscrew grub screw M5 x 12
zzUnscrew spindle
zzReplace O-ring
Replacement:
zzScrew in spindle with new O-ring
zzScrew in grub screw fully
zzTurn spindle and check that the grub screw meshes with the
groove in the spindle.
zzTurn spindle again firmly so that the pressure equalisation
line is closed.
zzCAUTION: spindle must be prevented from unscrewing by
installing the grub screw
zzSwitch system on again
Venting DFDKN 160 to 400….
Version 1.0/1.1 and 2.0/2.1
1
EN 7.553.1.E0/08.17
3
2
zzLeft filter side:
Open air bleed screws 1 and 3.
zzRight filter side:
Open air bleed screws 2 and 4.
1 = Clean side left
2 = Clean side right
3 = Contaminated side left
4 = Contaminated side right
2
4
3.SPARE PARTS
3.1SPARE PARTS DRAWING DFDKN 40 – 100 ... 1.X (ONE-PIECE BOWL)
2.1
2.2/4.4
2.3/4.5
4.7
1.2 / 4.1
4.2
3.
4.3
1.1
3.2SPARE PARTS LIST DFDKN 40 – 100 ... 1.X (ONE-PIECE BOWL)
Item Con- Description
40
63
100
sists
1.
Filter element
see Point 4. Replacement elements
1.1
Filter element
0040 DN…
0063 DN…
0100 DN…
1 unit per filter side
1.2
O-ring
21.82 x 3.53
2.
Clogging indicator
See Point 5. Replacement clogging indicator
or screw plug
2.1
Screw plug
VD 0 A.1
00305932
VD 0 A.1 /-V
00305931
2.2
Profile seal ring
VA...
2.3
O-ring
15 x 1.5
3.
Lever
01261482
4.
Repair kit DFDKN
01319211
Repair kit DFDKN /-V
01319212
4.1
O-ring (element)
21.82 x 3.53
4.2
O-ring (bowl)
59 x 3
4.3
Back-up ring (bowl)
DFDK 60...
4.4
Profile seal ring (indicator)
VD...
4.5
O-ring (indicator)
15 x 1.5
4.6
Oil drain plug
G 1/2
4.7
Air vent
G 1/8
Other spare parts on request
EN 7.553.1.E0/08.17
4.6
3
3.3SPARE PARTS DRAWING DFDKN 160 - 250 … 1.X (ONE-PIECE BOWL)
2.1
VERSION 1.0/1.1
5.7
2.1
VERSION 1.2
5.7
2.2/5.4
2.3/5.5
2.2/5.4
2.3/5.5
4.
3.
5.2
5.2
5.3
1.2 / 5.1
1.1
EN 7.553.1.E0/08.17
5.6
4
5.3
1.1
5.6
3.4SPARE PARTS DRAWING DFDKN 160 - 250 … 1.X (ONE-PIECE BOWL)
Item Con- Description
160
250
sists
1.
Filter element
see Point 4. Replacement elements
1.1
Filter element
0160 DN…
0250 DN…
1 unit per filter side
1.2
O-ring
40.87 x 3.53
2.
Clogging indicator
See Point 5. Replacement clogging indicator
or screw plug
2.1
Screw plug
VD 0 A.1
00305932
VD 0 A.1 /-V
00305931
2.2
Profile seal ring
VD...
2.3
O-ring
15 x 1.5
3.
Lever
01261484
4.
Spindle for pressure equalisation line DFDKN
01252239
...version 1.0/1.1
5.
Repair kit E DFDKN...1.0/1.1
01319213
Repair kit E DFDKN...1.0/1.1 /-V
01319214
5.1
O-ring (element)
40.87 x 3.53
5.2
O-ring (bowl)
117 x 4
5.3
Back-up ring (bowl)
DFDK 330
5.4
Profile seal ring (indicator)
VD…
5.5
O-ring (indicator)
15 x 1.5
5.6
Oil drain plug
G 1/2 NA
5.7
Air vent
G 1/8 NA (4 pieces)
...version 1.2
5.
Repair kit E DFDKN...1.2
01319215
Repair kit E DFDKN...1.2 /-V
01319216
5.1
O-ring (element)
40.87 x 3.53
5.2
O-ring (bowl)
117 x 4
5.3
Back-up ring (bowl)
DFDK 330
5.4
Profile seal ring (indicator)
VD…
5.5
O-ring (indicator)
15 x 1.5
5.6
Oil drain plug
G 1/2 NA
5.7
Air vent
G 1/8 NA (3 pieces)
Other spare parts on request
2.1
3.5SPARE PARTS DRAWING DFDKN 400 … 2.X (TWO-PIECE BOWL)
VERSION 2.0/2.1
VERSION 2.2
2.1
5.7
2.2/5.4
2.3/5.5
5.7
2.2/5.4
2.3/5.5
4.
3.
5.2
5.3
5.2
5.3
1.2 / 5.1
1.1
5.3
5.2
5.8
5.3
5.2
5.6
3.6SPARE PARTS DRAWING DFDKN 400 … 2.X (TWO-PIECE BOWL)
Item Con- Description
400
sists
1.
Filter element
see Point 4. Replacement elements
1.1
Filter element
0400 DN…
1 unit per filter side
1.2
O-ring
40.87 x 3.53
2.
Clogging indicator
See Point 5. Replacement clogging indicator
or screw plug
2.1
Screw plug
VD 0 A.1
00305932
VD 0 A.1 /-V
00305931
2.2
Profile seal ring
VD...
2.3
O-ring
15 x 1.5
3.
Lever
01261484
4.
Spindle for pressure equalisation line DFDKN
01252239
...version 2.0/2.1
5.
Repair kit E DFDKN...2.0/2.1
01319217
Repair kit E DFDKN...2.0/2.1 /-V
01319218
5.1
O-ring (element)
40.87 x 3.53
5.2
O-ring (bowl)
117 x 4
5.3
Back-up ring (bowl)
DFDK 330
5.4
Profile seal ring (indicator)
VD…
5.5
O-ring (indicator)
15 x 1.5
5.6
Oil drain plug
G 1/2 NA
5.7
Air vent
G 1/8 NA (4 pieces)
5.8
Grub screw
M4 x 120
...version 2.2
5.
Repair kit E DFDKN...2.2
01319219
Repair kit E DFDKN...2.2 /-V
01319220
5.1
O-ring (element)
40.87 x 3.53
5.2
O-ring (bowl)
117 x 4
5.3
Back-up ring (bowl)
DFDK 330
5.4
Profile seal ring (indicator)
VD…
5.5
O-ring (indicator)
15 x 1.5
5.6
Oil drain plug
G 1/2 NA
5.7
Air vent
G 1/8 NA (3 pieces)
5.8
Grub screw
M4 x 120
Other spare parts on request
5.8
5.6
EN 7.553.1.E0/08.17
1.1
5
4.REPLACEMENT ELEMENT
5.REPLACEMENT CLOGGING INDICATOR
Size
0040, 0063, 0100, 0160, 0250, 0400
Type of indicator
VD differential pressure indicator up to 420 bar
operating pressure
Type
DN
Response pressure
8
standard 8 bar, others on request
Filtration rating
BN4HC, BH4HC: 003, 006, 010, 025
W/HC: 025, 050, 100, 200
Type of clogging indicator
A
with screw plug in indicator port
Bvisual
Celectrical
D
visual and electrical
0100 DN 010 BH4HC /-V
Filter material
BN4HC, BH4HC, W/HC
EN 7.553.1.E0/08.17
Supplementary details
V
(For description see "DFDKN" brochure)
6
VD 8 D . X /-L24
Modification number
X
the latest version is always supplied
Supplementary details
L..., LED, V
(for description, see "Clogging Indicators" brochure)
6.1USER INSTRUCTIONS FOR FILTERS
Notice
This pressure equipment
must only be put into
operation in conjunction
with a machine or system.
The pressure equipment
must only be used as
stipulated in the operating
Notice
instructions of the machine
or system.
Notice
Caution
This pressure equipment
must only be operated
using hydraulic or
lubricating fluid.
The user must take
appropriate action
(e.g. venting) to prevent the
formation of air pockets.
Repair, maintenance work
and commissioning must
be carried out by specialist
Caution
personnel only.
Allow the pressure equipment to
cool before handling.
The stipulations of the operating
instructions of the machine or
system must be followed.
Caution: pressure
equipment! Before any
work is carried out on the
Danger
pressure equipment,
ensure the pressure chamber
concerned (filter housing) is
depressurised.
Danger
Notice
Caution
On no account must any
modifications (welding,
drilling, opening by force
etc.) be carried out on the
pressure equipment.
It is the responsibility of
the owner to comply with
the water regulations of the
country concerned.
Statutory accident
prevention regulations,
safety regulations and
safety data sheets for fluids
must be observed.
Filter housing must be
earthed.
Caution
When working on, or in the
vicinity of, hydraulic
systems, naked flames,
Caution
spark generation and
smoking are forbidden.
Hydraulic oils and waterpolluting fluids must not be
allowed to enter the soil or
Caution
watercourses or sewer
systems. Please ensure safe and
environmentally friendly disposal of
hydraulic oils. The relevant
regulations in the country
concerned with regard to ground
water pollution, used oil and waste
must be complied with.
Whenever work is carried
out on the filter, be
prepared for hot oil to
Caution
escape which can cause
injury or scalding as a result of its
high pressure or temperature.
When using electrical
clogging indicators, the
electrical power supply to
Danger
the system must be
switched off before removing the
clogging indicator connector.
Customer Information in respect of
Machinery Directive 2006/42/EC
Hydraulic filters are fluid power parts/
components and are therefore excluded
from the scope of the Machinery
Directive. They do not bear the CE mark.
Before using these components, ensure
compliance with the specifications
provided by HYDAC Filtertechnik GmbH
in this documentation.
The specifications also contain
information on the relevant essential
health and safety requirements (based
on Machinery Directive 2006/42/EC) that
are to be applied by the user.
We hereby declare that the filters
are intended to be incorporated into
machinery within the terms of the
Machinery Directive 2006/42/EC.
It is prohibited to put the filters into
service until the machinery as a whole is
in conformity with the provisions of the
Machinery Directive. Furthermore, our
Terms of Sale and Delivery are available
on our website (www.hydac.com).
6.2MAINTENANCE, GENERAL
This section describes maintenance
work which must be carried out
periodically. The operational safety
and life expectancy of the filter, and
whether it is ready for use, depend to
a large extent on regular and careful
maintenance.
6.3MAINTENANCE MEASURES
zzSpare parts must fulfil the technical
requirements specified by the
manufacturer.
This is always ensured when using
original HYDAC spare parts.
zzKeep tools, working area and
equipment clean.
zzAfter disassembling the filter, clean all
parts, check for damage or wear and
replace parts if necessary.
zzWhen changing a filter element, a high
level of cleanliness must be observed!
6.4INTERVAL BETWEEN ELEMENT
CHANGES
In principle we recommend that the
filter element is changed after 1 year
of operation at the latest.
When no clogging indicator has been
fitted, we recommend changing the
elements at specific intervals.
(The frequency of changing the filter
elements depends on the filter design
and the conditions under which the filter
is operated.) When filter elements are
subject to high dynamic loading it may
prove necessary to change them more
frequently. The same applies when the
hydraulic system is commissioned or
repaired or when the oil is changed.
The standard clogging indicators only
respond when fluid is flowing through
the filter. With electrical indicators the
signal can also be converted into a
continuous display on the control panel.
In this case the continuous display
must be switched off during a cold start
or after changing the element.
If the clogging indicator responds
during a cold start only, it is possible
that the element does not yet need to
be changed.
SERVICE ADDRESSES
HYDAC Service GmbH
Postfach 1251
66273 Sulzbach / Saar, Germany
Factory address:
Werk 13
Friedrichsthaler Str. 15
66540 Neunkirchen / Heinitz
Germany
ServiCenter:
Tel.: +49 (0) 6897 / 509-9083
Fax: +49 (0) 6897 / 509-9881
Customer service:
Tel: +49 (0) 6897 / 509-412
Fax: +49 (0) 6897 / 509-828
NOTE
The information in this brochure
relates to the operating conditions and
applications described.
For applications and operating
conditions not described, please contact
the relevant technical department.
Subject to technical modifications.
EN 7.553.1.E0/08.17
6.MAINTENANCE
INSTRUCTIONS
7
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