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EN 7.1

13.E2/10.17

Spare Parts List

Filter NFD

Change-Over Version

up to 1600 l/min, up to 25 bar

1. MAINTENANCE

1.1 GENERAL 

Please follow the maintenance 

instructions!

1.2 INSTALLATION

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!

Filters must be flexibly mounted and not 

fixed rigidly to the floor or used as a pipe 

support.

When installing, ensure that system 

forces cannot be transferred to the filter. 

A filter with a stand may only be fixed to 

the ground if a compensator, expansion 

loop or similar device is fitted in the line.

1.3 COMMISSIONING

Check that the correct filter element is 

fitted. Screw in cover again by hand 

fully and then unscrew by 1/4 turn (the 

sealing effect will not be improved by 

overtightening). Move the lever to the 

centre position and fill filter via the 

system.

Spindle setting

Left

Right

Filter in operation

Undo the air bleed screws on the 

covers by a maximum of 1 rotation 

and vent the filter. Close these again 

as soon as oil begins exiting at the air 

bleed screws. After that, change over 

the lever to a filter side and check filter 

for leakage.

1.4 TOOLS REQUIRED FOR 

MAINTENANCE

Type Key for clogging indicator or screw 

plug
VD 0 A.1

VR 0 A.0

NFD

AF width 27

AF width 19

1.5 TORQUE VALUE FOR CLOGGING 

INDICATORS

Type Max. torque

VM

33 Nm

VR

33 Nm 

15 Nm ( for B, BM F, LE and LZ 

indicators)

2. CHANGING THE ELEMENT

2.1 REMOVING THE ELEMENT

1. Turn lever through 90° – filtration is 

switched over to the other side. 

2. Loosen air bleed screw(s) (if present); 

remove oil drain plug(s);

 

Drain oil into a container (the oil must 

no longer be fed to the system in an 

uncleaned state!).

3. Unscrew cover.

4. Remove filter element(s) with dirt 

retainer (if present) from the element 

spigot. Examine element surface for 

dirt residues and larger particles since 

these can be an indication of damage 

to components.

5. Remove dirt retainer (if present) by 

turning anti-clockwise – bayonet fitting 

(only on Version 1.x)

6. Replace or clean filter element(s) 

(only W/HC and V elements can be 

cleaned).

7. Clean housing, cover and dirt retainer 

(if present).

8. Examine filter, especially sealing 

surfaces, for mechanical damage.

9. Check O-rings – and replace if 

necessary

2.2 FITTING THE ELEMENT

1. Lubricate the O-ring with clean 

operating fluid. Apply aluminium paste 

or another suitable lubricant to threads 

on filter head and bowl.

2. When fitting a new filter element, 

check that the designation 

corresponds to that of the old element.

3. If present, fit the dirt retainer onto 

the new or cleaned filter element by 

turning clockwise (only for Version 

1.x).

4. Place filter element(s) carefully onto 

the element spigot in the housing (if 

applicable, observe clip position on the 

element, change over as necessary!).

5. Screw the cover on by hand fully and 

then a quarter-turn back again.

6. Screw in oil drain plug(s).

7. Move the lever into centre position and 

fill the filter side until oil exits from the 

air bleed screw.

8. Close the air bleed screw again and 

unscrew cover by one quarter-turn.

9. Change lever back to the non-changed 

filter side.

10. Check the filter for leakage.

NFD 

1340

NFD 

2640

NFD 

5240

NFD 

7840

NFD 

10440

NOTICE:

When replacing the pipe elbows and 

connection parts, you must ensure 

that the parts are assembled without 

being placed under strain. If this is not 

observed, the aluminium parts may be 

damaged.
Filter elements which cannot be cleaned 

must be disposed of in accordance with 

environmental protection regulations.

Содержание NFD

Страница 1: ...r the oil must no longer be fed to the system in an uncleaned state 3 Unscrew cover 4 Remove filter element s with dirt retainer if present from the element spigot Examine element surface for dirt residues and larger particles since these can be an indication of damage to components 5 Remove dirt retainer if present by turning anti clockwise bayonet fitting only on Version 1 x 6 Replace or clean f...

Страница 2: ...ing indicator or screw plug See Point 5 Replacement clogging indicator 2 1 Screw plug VR 0 A 1 VR 0 A 1 V 4 00306006 00305928 2 2 Screw plug VSTI G 3 4 NBR VSTI G 3 4 FKM 2 00607167 00613726 3 Seal kit E NFD 1 x Seal kit E NFD 1 x V 2 2 01295742 01295743 3 1 O ring element 2 97 8 x 5 33 3 2 O ring cover 2 189 87 x 5 33 3 3 O ring tank seal 2 24 67 x 5 33 4 Lever NFD 2600 1 01205525 5 Dirt retainer...

Страница 3: ...rew plug VR 0 A 0 VR 0 A 0 V 2 2 00306006 00305928 2 2 Screw plug VD 0 A 1 VD 0 A 1 V 2 4 00305932 00305931 2 3 Screw plug VSTI G 3 4 NBR VSTI G 3 4 FKM 2 2 00607167 00613726 2 4 Screw plug VSTI G 1 2 NBR VSTI G 1 2 FKM 2 4 00607166 00613168 3 Seal kit E NFD 1 x Seal kit E NFD 1 x V 2 2 01270370 01270371 3 1 O ring element 2 97 8 x 5 33 3 2 O ring cover 2 189 87 x 5 33 4 Lever NFD 2600 1 01205525 ...

Страница 4: ... 2 CLOGGING INDICATOR or screw plug See Point 5 Replacement clogging indicator 2 1 Screw plug VR 0 A 0 VR 0 A 0 V 4 00306006 00305928 3 Seal kit E NFD 1 x Seal kit E NFD 1 x V 4 4 01295742 01295743 3 1 O ring element 4 97 8 x 5 33 3 2 O ring cover 4 189 87 x 5 33 3 3 O ring tank seal 4 240 67 x 5 33 4 Lever NFD 2600 1 01205525 5 Dirt retainer 4 01204141 Other spare parts on request 4 2 1 3 3 3 2 1...

Страница 5: ...0306006 00305928 8x 8x 00306006 00305928 2 2 Screw plug VD 0 A 1 VD 0 A 1 V 4x 8x 00305932 00305931 6x 12x 00305932 00305931 8x 16x 00305932 00305931 2 3 Screw plug VSTI G 3 4 NBR VSTI G 3 4 FKM 4x 4x 00607167 00613726 6x 6x 00607167 00613726 8x 8x 00607167 00613726 2 4 Screw plug VSTI G 1 2 NBR VSTI G 1 2 FKM 4x 8x 00607166 00613168 6x 12x 00607166 00613168 8x 16x 00607166 00613168 3 Seal kit E N...

Страница 6: ...T CLOGGING INDICATOR VM 5 D X L24 Type of indicator VR Return line pressure indicator with type code 1 x VM Differential pressure indicator with type code 2 x Response pressure 2 Standard 2 bar on VR indicator others on request 5 Standard 5 bar on VM indicator others on request Type of clogging indicator A with steel blanking plug in indicator port BM visual C electrical D visual and electrical Mo...

Страница 7: ...re 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 SERVICE ADDRESSES HYDAC Service GmbH Postfach 12...

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