ISO 6022 Hydraulic cylinders ISM Series · 2017-08-06 · ISO 6022 Hydraulic cylinders ISM Series...

Stocchetta Cilindri S.r.l. – Via Capretti n°14 , 25136 Brescia – Italia –

ISO 6022 Hydraulic cylinders

ISM Series Use and maintenance manual APP 0004-4.2014 REV.00

Revisione Data Emissione Modifiche

00 01/01/2015 PRIMA EMISSIONE

APP 0004-4.2014 ISM SERIES – USE AND MAINTENANCE MANUAL

Stocchetta Cilindri S.r.l. – Via Capretti n°14 , 25136 Brescia – Italy –

Table of matters

1 Product information

1.1 Description

1.2 Technical specifications

1.3 General product description

2 Use of manual

2.1 Safety symbols

2.2 General information

3 Decommissioning

3.1 Preparation to decommissioning

3.2 How to carry out the decommissioning

3.3 Disassembly preliminary operations

4 Repair and spare parts

4.1 Repair

4.2 Spare parts

5 Maintenance/replacement of parts subject to wear

5.1 Maintenance of cushioning adjustment cartridges

5.2 Replacement of seals of the rod guide bushing

5.3 Replacement of piston seals

5.4 Inductive proximity switches installation and calibration

APP 0004-4.2014 ISM SERIES - USE AND MAINTENANCE MANUAL


1

1 Product information

1.1 Description

A hydraulic cylinder converts hydraulic energy into a linear movement. The driving force is

determined by the hydraulic pressure inside the cylinder chamber on the piston surfaces and

cylinder ring

Fig.1 Cylinder ISM – ISO 6022 main components:

1 Rod

2 Flange

3 Oil connections

4 Cylinder front head

5 Mounting elements (ex. rear clevis)

6 Threaded flanges

7 Cylinder barrel

8 Cylinder end cap (or cylinder rear head)

The Stocchetta Cilindri ISM series of hydraulic double acting cylinders and servo-cylinders has been

conceived to meet the most demanding actuation requirements in the iron and steel sector, in

compliance with ISO 6022 and DIN 24333 construction standards.

The compact round-headed design and the careful choice of materials and seals used, added to the

rigorous final testing procedures reproducing normal cylinder operating conditions, make these

hydraulic actuators the peak of technology in the hydraulic actuation field for all types of industrial

applications, particularly under critical operating conditions such as those in steel plants where sturdy,

reliable and easy to maintain products are required.



2

1.2 Technical specifications

Interchangeability

dimensions According to standard ISO 6022 and DIN 24333

Nominal operating

pressure (non-stop

operation)

250 bar (25 MPa)

Max. operating pressure 300 bar (30 MPa)

Rod diameters According to the bore type, 2 diameters are available from 32

mm to 360 mm.

Stroke

Upon customer’s request, with dimensional tolerances from 0

to 1 mm for values up to 1000mm and from 0 to 4 mm up to

6000 mm

Max. standard speed 0.5 m/s

Standard temperature From -30°C to +100°C

Standard hydraulic fluid Mineral oil in compliance with ISO 6743/4 – 1982 standards and

purity degree in compliance with ISO 4406 standard

Mounting and

accessories

5 different kinds of standard fixings in compliance with ISO

standards and 1 non-compliant fixing, provided with a large

range of accessories capable of meeting any kind of operational

requirement

Tab. 1



3

1.3 General product description

Fig. 2

The rod (A) has been obtained from bars of hardened and tempered, high-strength, chromed

and honed alloy steel with roughness Ra=0.2 µm. The rods, up to diameter 110mm, are

induction hardened and tempered before the chromium plating, with Rockwell hardness C 54.

This solution assures longer life of seals. The dimensions are based on a safety factor 4:1,

referred to the ultimate tensile strength and maximum operating pressure.

The Piston (C), necessary for force transmission, is made of spheroidal graphite cast iron, it is

connected to the rod by means of threaded connection and clamped in position by means of a

dowel, in order to ensure highest reliability also in extreme conditions. Its standard

configuration includes some guide rings (M) in composite material (static load 345N/mm2)

which, besides having a support function, operate as barrier against possible impurities

affecting the seals. The seal is made of bidirectional polyurethane (I), internally energized by

means of O-ring, it ensures excellent tightness, movements free of sticks and slips and

prolonged resistance to wear. Alternatively, a configuration of piston with packing seals,

Chevron type (see Fig. 3), is also possible.



4

Fig. 3 – Application with seals, Chevron type

1 Front piston

2 Chevron seals

3 Piston guide

4 Rear piston

The Cylinder head (D), made of high-strength steel, is precision-machined to ensure perfect

alignment between the surfaces and also perfect concentricity of the seat of the rod guide

bushing with cylinder axis. The hydraulic circuit connection has been positioned on the head,

which is bolted to the barrel by means of the threaded flanges (H) and, upon request, vents

and braking valves are also available.

Tightening torques of the screws used to lock the head in place are given in this table:

BORE (mm) 50 63 80 100 125 140 160 180 200 250 320

SCREWS M8 M10 M12 M14 M16 M18 M20 M22 M24 M30 M39

TORQUE

(Nm) 12 23 43 77 134 192 272 376 517 1008 1218

Tab.2

The barrel (E) has been obtained from a large thickness, seamless tube made of high-strength

steel; it is internally lapped to improve sliding and to ensure long life to seals. The barrel has

been dimensioned on account of the regulations in force and the required nominal pressures.

The dimensioning is such that the bulking of the barrel, due to internal pressure, remains

within the limits ensuring the proper working of piston seals and guide rings. Upon request, it

can be internally chrome-plated.



5

End cap (F). When the rod retracts, the piston can abut against the end cap. In this case, the

tensile forces and possible external loads are absorbed by the end cap. A connection to the

hydraulic circuit is located on the end cap and, upon request, vents and braking valves are also

available. The end cap is bolted to the barrel by means of the relevant threaded flanges (H).

The tightening torques of the screws that clamp the end cap have been stated in Table 2 at

page 4.

The rod guide bushing (G) in spheroidal graphite cast iron is highly resistant to wear. The

surface of the guide bushing supports the rod when it slides. Standard configuration includes

a packing seal (LC), Chevron type, on the farthest side of the bushing, thus enabling

continuous lubrication when in motion. For easy maintenance, the bushing provided with

seals has been introduced in a precision seat and locked in place by a front flange (N)

attached to the head.

Up to diameter 100 mm (included) the flange is threaded; for greater diameters the flange is

fastened by means of screws (the same for the low-friction bushing). The corresponding

tightening torques are illustrated in the following table:

BORE (mm) 125 140 160 180 200 250 320

SCREWS M10 M12 M12 M14 M14 M16 M20

TORQUE

(Nm) 24 45 45 56 60 150 300

Tab. 3

The scraper (B) is positioned in the flange thus ensuring the cleaning of the rod when it

retracts. A low friction configuration is possible also for the rod guide bushing (see fig. 4).



6

Fig. 4 – Bushing- low friction configuration

1 Front flange

2 Rod guide bushing

3 STEPSEAL seals

4 Guide rings

5 Head

The seals must be chosen according to the operating conditions of the system: speed,

frequency, kind of fluid and temperature. Cylinder seals are, primarily:

- Static (I), used between two non-moving parts. For instance, the seals between head (or

end cap) and barrel or between rod and piston.

- Dynamic (L) (LC), used between moving parts. For instance, the seals between rod and

bushing or between piston and barrel.

- Guide rings (M), they act as support and ensure the correct sliding between piston and

barrel.

The seals must be replaced at regular intervals (see paragraphs 5.2 and 5.3). The kits fitted to

the cylinder (and for possible replacement) are: standard, high temperatures or aggressive

fluids, water glycol, low friction.

Gradual action, front and rear cushioning. The front cushioning, rod side, has been realized by

means of a self-centering braking ogive, with special profile for gradual cushioning and

absence of pressure peaks. The braking effect in opposite direction is made possible thanks to

the ball by-pass valve in the head. The rear cushioning is obtained by means of the tail rod and

self-centering ring in special, high-strength, seizure-free material. The ring nut, thanks to its

design, acts as by-pass valve in reverse direction in order to enable quick rod exit.



7

The mounting elements enable the cylinder installation in the machine or in the system. They

are enbloc and highly resistant, their dimensions and tolerances comply with ISO 6022

standard and related regulations. In addition to these mounting elements, also foot mounting

is available, according to standard sizes available on the market.

Upon request, air vents can be installed on the heads; they enable air bleeding which forms

upon start-up, when the entire cylinder stroke is not exploited or when the fitting connections

are not facing upwards.

In long-stroke cylinders or in the regenerative circuits, in which the annular chamber is

steadily under pressure, it is advisable to ask for a connection on the front head to drain the

fluid which has deposited between the first and the second tightening seal.

The spacers (see Fig. 5) prevent the piston from abuting against the head when the rod is

completely extended, in order to increase the distance between piston and head. This enables

an increase of the lever arm between the bushing and the piston, with consequent increase of

rod stiffness. The number of spacers to be used depends on load conditions and kind of

fastening (see specific catalogue).

Fig. 5 Spacer



8

2 Use of manual

This use and maintenance manual describes the cylinder ISO 6022, its components and its

relevant operations. Before starting any operation implying use, general maintenance of the

cylinder (see chapter no. 11 of basic manual STC001-2.2013), handling and storage (see

chapters no. 6 and 7 of basic manual STC001-2.2013), read this manual and basic manual

STC001-2.2013 carefully.

The handbook contains 36 pages.

2.1 Safety symbols

DANGER

Identifies a dangerous situation which, if not avoided,

may cause death or serious body injuries.

CAUTION

Identifies a dangerous situation which, if not avoided,

may cause slight up to medium-serious body injuries.

NOTICE

Information which, if used, protects the product

and/or the environment from material damages

IMPORTANT

Instructions for a better use of the cylinder when in

operation or adjustment and/or maintenance

instructions.

GLOVES The use of protective gloves is compulsory

LUBRICATION Proper lubrication of the components.

MAINTENANCE

Instructions for a correct disassembly/re-assembly of

cylinder components during routine and/or

extraordinary maintenance.



9

2.2 General information

The original cylinder configuration shall not be modified for any reason whatever without the

explicit consent of Stocchetta Cilindri S.r.l. .

Before starting any operation, carefully read all the directions stated in the chapter “Safety

warnings” of the basic manual STC001-2.2013.

The opening of the hydraulic cylinder will result in the cancellation of any warranty right

This manual and the information therein contained have been conceived for technical trained

staff. Stocchetta Cilindri S.r.l. disclaims all liability for damages due to misuse of the

information contained in this manual. The content of this manual can be modified without any

notice. Due to technological developments, the illustrations and descriptions contained in this

manual may differ, in the details, from the actually supplied cylinder. In case of problems or

for any information, contact the after-sales service.

Upon goods receipt verify that:

• The packaging is unimpaired and not damaged. In case of damages

immediately inform Stocchetta Cilindri S.r.l.

• The delivery corresponds to order specifications



10

3 Decommissioning

3.1 Preparation to decommissioning

DANGER

HIGH OPERATING PRESSURE IN THE HYDRAULIC CYLINDER

Danger of injuries or damages to people and things due to mobile parts or oil leakage during operation!

• Disable all the power transmission components and all the connections

(electrical, pneumatic, hydraulic) according to the manufacturer’s indications;

secure the installation against restart and, if possible, remove the main safety

element of the installation

• Release the cylinder from external forces, if any.

• Depressurize the accumulators on the oil side - if any

Upon decommissioning and disassembly of the hydraulic cylinder from the system, do as

follows:

• Due to safety reasons, lines, ports and components cannot be

disconnected as long as the system is under pressure. First of all

lower the loads, depressurize the pressure accumulator, switch off

the pumps and ensure the system against re-start.

• Provide for sufficiently capacious collection tanks to contain the

whole oil volume.

3.2 How to carry out the decommissioning

In order to carry out the decommissioning follow these steps:

• Let the oil flow into the prearranged collection tanks

• Verify that all lines and services are completely empty

• Carry out venting, if necessary



11

3.3 Disassembly preliminary operations

Before carrying out any operation on the hydraulic cylinder, take the following measures:

• Get a sufficiently intelligible installation layout and/or list of the spare

parts

• Make use of clean and professional tools. Make sure that the

workstation is clean.

• Upon cylinder disassembly, avoid any penetration of impurities inside

of it. Seal the ports with suitable plugs or flanged covers.

• Make sure that the cylinder and, in particular, the rod are not

damaged.

• Position the hydraulic cylinder and its components on a stable

working table.

As concerns cylinder lifting and handling during its disassembly from the system (or

machinery), the same directions set forth in chapter 6 “Handling” of the basic manual

STC0001-2.2013 shall apply.



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4 Repair and spare parts

Please always report to the personnel of Stocchetta Cilindri S.r.l. for any question or

explanation you may need.

The opening of the hydraulic cylinder will result in the cancellation of any warranty right

4.1 Repair

Stocchetta Cilindri S.r.l. offers complete assistance for hydraulic cylinder repairs. Submit your

requests to our headquarters to the following e-mail address: [email protected]

4.2 Spare parts

NOTICE

MACHINE MALFUNCTION DUE TO THE USE OF UNSUITABLE SPARE PARTS !

Damages to property!

• Exclusively use components listed in the specific product documentation (list

of components)

• Exclusively use new seals and verify their compatibility with the fluid used.

Despite their identical aspect, seal materials may differ; therefore check the

product code.

Send spare parts orders directly to headquarters to the e-mail address:

[email protected]

When ordering the spare parts, provide the product code and the cylinder work-order no.

stated on the identification plate. Besides specify, if known, the position of the corresponding

component according to the list of components.



13

5 Maintenance/ replacement of parts subject to wear

5.1 Maintenance of cushioning adjustment cartridges.

ISO 6022 cylinders are provided with a cushioning adjuster with needle valve. If the

adjustment cartridge leaks, this means that the seals must be replaced.

Fig. 6 – Layout cushioning adjuster

1 Needle

2 Lock nut

3 Cartridge

4 Bonded seal

5 O-ring

6 Back-up ring

Disassembly: Unscrew the complete valve by making use of the suitable wrench. Thoroughly

clean the seat of the bonded seal and pay utmost care that no dirt or foreign bodies enter the

cylinder through the seat of the adjustment needle valve. Firstly unscrew the locking nut and

then the needle of the cartridge by pulling it out from the bottom.

Assembly: replace the O-ring and the back-up ring (Pos. 5 and 6), re-position the needle

(Pos.1) in the cartridge (Pos.3) and partially screw the lower nut (Pos. 2). Insert the new

bonded seal (Pos. 4) into the seat and screw tight the complete valve in its seat. Adjust braking

again, as set forth in paragraph 3.9 of basic manual STC 0001-2.2013 and lock the nut in

position. In case of leakage from the bonded seal, increase the tightening torque.



14

5.2 Replacement of seals of the rod guide bushing

� Configuration with seals, CHEVRON type;

� Threaded front flange (up to diameter 100 mm included);

Fig. 7

Tab. 4

Pos. No. Description

A 1 Scraper

B 1 Seal, CHEVRON type

C 1 Back-up O-ring



15

Check that the surface of the rod is free from damages that may affect the service life of the

seals.

Unscrew the front flange by making use of the four holes for wrench operation and pull it out,

being careful not to damage the rod.

After having removed the worn out seals, carry out a thorough washing of all parts in order

that they are clean and check that they are free from metallic particles, scorings or surface

faults of any kind; otherwise, provide also for the replacement of the damaged component. If

necessary, ask Stocchetta Cilindri S.r.l. for components kit – in case of seals and bushing – or

the necessary spare parts.

Lubricate the new seals to be fitted and their seats in the bushing by making use of specific

grease type Polymer 400\0 (to be supplied upon request). The specific feature of grease is to

improve the sensitivity, accuracy, tightness and service life of the seals, thus avoiding sticking

and jerky movements (stick-slip effect), besides facilitating the motions at low speeds by

decreasing the frictions.

Check the correct orientation of the seals with respect to the thrust direction of the hydraulic

fluid as illustrated in the following figure (Fig. 8).

Fig. 8

Insert the packing seal into the seat of the rod guide bushing and re-assemble the bronze

supporting ring. Assemble the front flange being careful not to damage the rod and screw it by

making use of the four holes for wrench operation. In order to ensure that the flange does not

get loose upon working stages, clamp it with Loctite no. 242 (medium thread-locker) after

having carried out an accurate degreasing of the components concerned.



16


� Bolted front flange (from diameter 125 mm included);

Fig.9

Tab. 5


A 1 Scraper

B 1 Seal, CHEVRON type

C 1 Back-up O-ring



17


seals.

Unscrew the clamping screws of the front flange and pull it off, being careful not to damage

the rod.

After having removed the worn-out seals, carry out a thorough washing of all parts in order



necessary, ask Stocchetta Cilindri S.r.l. for components kit – in case of seals and bushing – or

the necessary spare parts.







fluid as illustrated in the following figure (Fig. 10)

Fig. 10

Insert the packing seal into the seat of the rod guide bushing and re-assemble the bronze

supporting ring. Assemble the front flange being careful not to damage the rod and clamp it by

tightening the corresponding screws with suitable torque (see table Tab. 3 at page 5).



18

� Low friction configuration;

� Threaded bushing (up to diameter 100 mm included);

Fig. 11

Tab. 6


H 1 Scraper

J-K 1+1 STEPSEAL

L 3/4 Guide rings

C 1 Back-up O-ring



19


seals.

Unscrew the rod guide bushing by making use of the four holes for wrench operation and pull

it out being careful not to damage the rod.




necessary, ask Stocchetta Cilindri S.r.l. for components kit – in case of seals and bushing –

(see notes at the end of paragraph) or the necessary spare parts.








Fig. 12



20

Install the seals in the bushing by operating evenly and avoiding any use of metallic, sharp-

edged tools, being extremely careful not to cause any long-term deformation to the seals.

Position the O-ring, if any, into the groove.

Insert the seal into the groove by pressing it together by hand as illustrated in Fig. 13 or by

making use of special tools as illustrated in Fig. 14. The seal shall be given a “kidney” shape

and shall be free from any edges in its bends.

Fig. 13 Fig. 14

Once the seal has been positioned into the groove, shape it into a ring, by hand and by

pushing in the direction of the arrow (Fig.13).

Calibrate the seal directly on the rod only if the latter is provided with a lead-in chamfer.

Otherwise, calibrated gauges may also be used, provided they have a specific chamfer

(example in Fig. 15).

Fig. 15 Rounded-smooth radius



21

Upon bushing installation, be extremely careful not to damage the newly fitted seals upon

contact with rod thread. Carry out a rotary movement in order to facilitate the coupling of the

rod guide bushing.

Make the bushing slide along the rod and screw it down by making use of the 4 holes for

wrench operation. In order to ensure that the bushing does not get loose upon working stages,

clamp it with Loctite no. 242 (medium thread-locker) after having carried out an accurate

degreasing of the components.



22


� Bolted bushing (from diameter 125 mm included);

Fig. 16

Tab. 7


H 1 Scraper

J,K 1+1 STEPSEAL

L 3/4 Guide rings

C 1 Back-up O-ring



23


seals.

Unscrew the clamping screws of the rod guide bushing and pull it off being careful not to

damage the rod.




necessary, ask Stocchetta Cilindri S.r.l. for components kit – in case of seals and bushing –

(see notes at the end of paragraph) or the necessary spare parts.








Fig. 17



24

Install the seals in the bushing by operating evenly and avoiding any use of metallic, sharp-


Position the O-ring, if any, into the groove.

Insert the seal into the groove by pressing it together by hand, as illustrated in Fig. 18, or by

making use of special tools as illustrated in Fig. 19. The seal shall be given a “kidney” shape

and shall be free from any edges in its bends.

Fig. 18 Fig. 19

Once the seal has been positioned into the groove, shape it into a ring by hand and by pushing

in the direction of the arrow (Fig.18).

Calibrate the seal directly on the rod only if the latter is provided with a lead-in chamfer.

Otherwise, calibrated gauges may also be used, provided they have a specific chamfer

(example in Fig. 20).

Fig. 20



25

Upon bushing installation, be extremely careful not to damage the newly fitted seals in contact

with rod thread. Carry out a rotary movement in order to facilitate the coupling of the rod

guide bushing.

Make the bushing slide along the rod and place it into the head seat. Clamp the rod guide

bushing by tightening the relevant screws with suitable torque (see the table relevant to front

flange, Tab. 3 at page 5).



26

5.3 Replacement of piston seals


Fig. 21

Tab. 8


A 1 O-ring

B 2 CHEVRON seal

C 1 Stop dowel

D + E 1+1 (Each barrel side) O-ring + Back-up ring



27

Hereunder a list of directives to be observed for a correct replacement of piston seals. Use the

drawing of Fig. 21 as reference.

Remove the screws that fix the head to the ring nut of the barrel. Pull off the front flange, rod

guide bushing and head, when they are still assembled, being careful not to damage the rod.

Pull off the rod-piston unit, release the stop dowel C and remove the piston.

Be extremely careful not to damage the seals of the bushing due to possible contact with the

thread at rod end.

After having removed the worn-out seals, carry out a thorough washing of all parts with

accurate examination of the barrel, rod and piston in order to ascertain that no scorings, burrs

or any other kind of damages have been caused to the surface. In case of damage, ask

Stocchetta Cilindri S.r.l. for spare parts in order to provide for the replacement.

If the cylinder is provided with cushioning, check - after having disassembled the rod-piston

unit from the cylinder body – that the cushioning components are not damaged or worn out.








28



Fig.22

Insert the new packing seals and replace the O-ring of the piston. Assemble the rod-piston

unit, clamp the stop dowel with LOCTITE 270 and reassemble it. Reassemble the front flange

unit, the rod guide bushing and the head, being careful not to damage the rod or the seals

positioned in the assembled unit. Tighten the screws that clamp the head to the ring nut of

the barrel. Tighten the screws crosswise by applying a gradual tightening torque up to the

maximum value stated in Table 2 at page 4.



29


Fig. 23

Tab. 9


A 1 O-ring

B 1 Seal, GLYD RING type

C 2/4 Guide rings

D 1 Stop dowel

E 1+1 (Each barrel side) O-ring + Back-up ring



30

Hereunder a list of directives to be observed for a correct replacement of piston seals. Use the

drawing of Fig. 23 as reference.

Remove the screws that clamp the head to the ring nut of the barrel. Pull off the rod guide

bushing and the head when they are still assembled, being careful not to damage the rod. Pull

off the rod-piston unit.

Be extremely careful not to damage the seals of the bushing due to possible contact with the

thread at rod end.

After having removed the worn-out seals, carry out a thorough washing of all parts with

accurate examination of the barrel, rod and piston in order to ascertain that no scorings, burrs

or any other kind of damages have been caused to the surface. In case of damage, ask

Stocchetta Cilindri S.r.l. for spare parts in order to provide for the replacement.

If the cylinder is provided with cushioning, check - after having disassembled the rod-piston

unit from the cylinder body – that the cushioning components are not damaged or worn out.




and jerky motions (stick-slip effect), besides facilitating the motions at low speeds by




31



SEAL RING Fig. 24

Install the seals of the piston by operating evenly and avoiding any use of metallic, sharp-


Install the O-ring in its seat by expanding it as much as necessary. Place the sealing ring into

the groove, over the O-ring (see Fig. 25) and enlarge it by hand until it correctly fits (see Fig.

26).

Fig. 25 Fig. 26



32

The same operation can be carried out by means of a special device consisting of an expansion

cone and an expanding sleeve (see Fig. 27).

Fig. 27

The seal can be calibrated by making use of the corresponding cylinder barrel, on condition

that it is provided with a suitable lead-in chamfer, or by means of a calibrating tool (see Fig.

28).

Fig. 28



33

Lubricate the cylinder barrel with oil, then insert the rod/piston unit.

Insert the assembled rod-piston unit into the barrel and push until it reaches the end stop.

Reassemble the bushing-head unit and fix it, by making use of suitable screws, to the ring nut

of the barrel. Tighten the screws crosswise by applying a gradual tightening torque up to the

maximum value stated in Table 2 at page 4.

The kits of seals supplied by Stocchetta Cilindri S.r.l. as spare parts shall be stored in moisture-

free areas, avoiding any direct contact with heat sources and the exposure to direct sunlight.



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5.4 Inductive proximity switches installation and calibration

Fig. 29

Bore 50 63 80 100 125 140* 160 180* 200 250 320 400 500

F 36 36 36 36 36 36 36 36 36 36 36 36 36

PE 130 137 147 150 160 177 296 205 205 240 260 310 370

PY 92,5 107 120 129 153 181 189 205 231 266 316 314 398

PP^ 130 136 156 182 204 208 232 250 258 308 338 373 428

*: Add stroke

^: Not foreseen by Standard ISO

Tab. 10

Move the cylinder to end of stroke, in correspondence with the head and/or bottom where

calibration shall be carried out.

Disconnect pressure supply and discharge the hydraulic fluid filled in the cylinder chambers.

Slightly lubricate the thread and the sealing O-ring of the inductive sensor by making use of

specific grease type Polymer 400\0 (to be supplied upon request).



35

Fig. 30

Screw the inductive sensor clockwise into the ring nut, which is inserted in the heads, until it

reaches the end stop.

Fig. 31

Install the connector (variants and overall dimensions in Fig. 22) by paying attention to the

correct alignment with the reference tongue positioned in the sensor; lock the sensor in place

by making use of the special clamping ring nut.

ISO 6022 Hydraulic cylinders ISM Series · 2017-08-06 · ISO 6022 Hydraulic cylinders ISM Series...

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Transcript of ISO 6022 Hydraulic cylinders ISM Series · 2017-08-06 · ISO 6022 Hydraulic cylinders ISM Series...