CENTA CF-R operating instructions

CENTAFLEX-R

Assembly and operating instructions

CF-R Reintjes

M026-00003-EN

Rev. 2

Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

Contents

1 General remarks ..................................................................................... 5

2 Safety ..................................................................................................... 6

2.1 Safety remarks .................................................................................. 6

2.1.1 Signal words ......................................................................... 6

2.1.2 Pictograms ............................................................................ 7

2.2 Qualification of deployed personnel ...................................................... 7

2.3 Intended application ........................................................................... 7

2.4 Application not in compliance with the intended use ............................... 9

3 Delivery, transport, storage and disposal ............................................. 10

3.1 Delivery ...........................................................................................10

3.2 Transport .........................................................................................10

3.3 Storage ...........................................................................................10

3.3.1 Storage location ....................................................................11

3.3.2 Storage of couplings / flexible elements ...................................11

3.4 Disposal...........................................................................................11

4 Technical description ............................................................................ 12

4.1 Characteristics ..................................................................................12

4.2 Specifications ...................................................................................12

5 Mounting .............................................................................................. 13

5.1 General assembly instructions ............................................................13

5.2 Examination for sufficient axial play in the coupling ...............................14

5.3 Mounting the inner part .....................................................................16

5.4 SAE connection dimensions ................................................................18

5.5 Mounting the outer part .....................................................................19

5.6 Inserting the rubber rollers ................................................................20

5.7 Connecting the driving and driven units ...............................................22

5.8 After completed mounting ..................................................................24

6 Operation.............................................................................................. 25

6.1 Operating faults, root causes and remedy ............................................26

7 Care and maintenance .......................................................................... 27

7.1 Work to be performed .......................................................................27

7.1.1 Cleaning the coupling ............................................................27

7.1.2 Visual inspection of the coupling .............................................27

7.1.3 Visual inspection of the rubber rollers ......................................27

7.1.4 Inspection of the screw connections ........................................29

7.2 Replacing defective parts ...................................................................29

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Assembly and operating instructions

CENTAFLEX-R

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M026-00003-EN

Rev. 2

8 Dismantling .......................................................................................... 30

8.1 General dismantling instructions .........................................................30

8.2 Separating driving and driven units .....................................................31

8.3 Removing rubber rollers ....................................................................31

8.4 Dismantling the outer part .................................................................31

8.5 Dismantling the inner part .................................................................31

8.6 Reassembling the coupling .................................................................32

9 Wearing and spare parts....................................................................... 33

10 Annex ................................................................................................... 34

10.1 CENTA data sheet D013-017 (SAE flywheel screw connection)................34

10.2 CENTA data sheet D026-900 Declaration of incorporation according to

the EC Machinery Directive 2006/42/EC, Appendix II B ..........................35

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Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

Index of illustrations

Fig. 5-1 Examination for sufficient axial play in the coupling ........................... 14

Fig. 5-2 Mounting the inner part ................................................................. 16

Fig. 5-3 SAE connection dimensions ............................................................ 18

Fig. 5-4 Mounting the outer part ................................................................. 19

Fig. 5-5 Inserting the rubber rollers ............................................................ 20

Fig. 5-6 Assembly tape/cord ...................................................................... 21

Fig. 5-7 Assembly arrows .......................................................................... 22

Fig. 5-8 Push toogther the driving and driven units ....................................... 23

Fig. 7-1 Oval deformation of the rubber roller .............................................. 27

Index of tables

Table 2-1 Shape and size of ventilation holes ................................................ 8

Table 5-1 SAE connection dimensions ......................................................... 18

Table 6-1 Troubleshooting table ................................................................. 26

Table 7-1 Rubber rollers ............................................................................ 28

CENTA Antriebe Kirschey GmbH 4 / 35

Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

IMPORTANT

CENTA is unable to accept liability for damage and operating faults caused by failure to
observe the operating instructions.

CENTA Antriebe
Kirschey GmbH

Bergische Strasse 7
42781 Haan
GERMANY
Phone [phone]
Fax [phone]
[e-mail]
www.centa.info

1 General remarks

These assembly and operating instructions form a constituent part of the
coupling delivery and must be kept in an easily accessible place at all times.

CENTA products are developed and produced to quality standard
DIN EN ISO 9001:2000.

In the interests of further development, CENTA reserves the right to make
technical changes.

These operating instructions are protected under copyright to CENTA Antriebe
Kirschey GmbH.

In case of technical questions, please enquire with our head office:

CENTA Antriebe Kirschey GmbH 5 / 35

Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

WARNING

Injury and material damage can occur as a result of:

 Failure to adhere to the safety and accident prevention regulations

valid at the relevant installation site

The safety and accident prevention regulations valid at the installation
site in question must be adhered to when performing any of the tasks
described in these operating instructions.

DANGER

Denotes the immediate threat of danger.
If not prevented, fatal or extremely serious injuries can result.

WARNING

Denotes a potentially dangerous situation.
If not prevented, fatal or extremely serious injuries can result.

CAUTION

Denotes a potentially dangerous situation.
If not prevented, minor injuries and/damage to property may result.

IMPORTANT

Denotes application tips and particularly useful information. This is not
a signal word denoting a dangerous or damaging situation.

2 Safety

The purpose of these operating instructions is to enable users to:

 use the coupling safely and correctly
 maximize efficiency
 ensure that care and maintenance are carried out correctly

For this reason, these operating instructions must be thoroughly read and
understood prior to work on and with the coupling.

2.1 Safety remarks

In these operating instructions, safety remarks are indicated by a pictogram and
a signal word.

2.1.1 Signal words

The following signal words are used in the safety remarks:

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Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

Warning of a hazardous area

Do not switch

Use protective gloves

Use protective goggles

WARNING

Injury and material damage can occur as a result of:

 Work at the coupling which is not described in these instructions

Only carry out work which is described in these operating instructions.

WARNING

Injury and material damage can occur as a result of:

 Application not in compliance with the intended use

The couplings are intended exclusively for use in accordance with the
relevant design. They may only be used under the specified conditions.

2.1.2 Pictograms

Possible pictograms in the safety precautions:

2.2 Qualification of deployed personnel

All the work described in these operating instructions may only be performed by
authorized persons with adequate training and instruction.

2.3 Intended application

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Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

WARNING

Injuries can occur as a result of:

 Contact with rotating parts

Shield the coupling in accordance with the applicable accident
prevention regulations with an enclosure.

Exception:

The coupling is encased by the driving and driven units.

Component

Circular openings

[mm]

Rectangular openings

[mm]

Top of the enclosure

Ø 8

8

Side elements of the
enclosure

Ø 8

8

The scope of delivery provided by CENTA does not include a protective
enclosure.

This enclosure must fulfil the following criteria:

 Provide protection against persons gaining access to rotating parts
 Restrain any rotating parts which may be work loose
 Guarantee sufficient ventilation for the coupling

This enclosure must be made of stable steel components. In order to ensure
adequate ventilation for the coupling, the enclosure must be fitted with regular
openings. For safety reasons, these openings must not exceed the dimensions
outlined in table 2-1.

Table 2-1 Shape and size of ventilation holes

The enclosures must be positioned a minimum of 15 mm distant from rotating
parts. The enclosure must be electrically conductive and be included in the
equipotential bonding.

Before commencing long-term operation, the plant must successfully complete a
test run.

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Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

WARNING

Injury and material damage can occur as a result of:

 Inadmissibly high torque
 Inadmissibly high or low speeds
 Exceeding the specified ambient temperature
 Inadmissible ambient medium
 Inadmissible coupling enclosure
 Exceeding the admissible overall misalignment values

Only use the coupling for the specified application.

2.4 Application not in compliance with the intended use

CENTA bears no liability for damage resulting from application not in compliance
with the intended use of the equipment.
Should there be a change of plant parameters, the coupling design must be
reviewed by CENTA (address see chapter 1).

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Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

CAUTION

Injury and material damage can occur as a result of:

 Incorrect transportation of couplings

Ensure that the coupling is correctly transported.

CAUTION

Material damage to coupling components can occur as a result
of:

 Contact with sharp-edged objects

Protect coupling components for transportation.
Only hoist coupling components with nylon belts or ropes.
Always cushion parts when supporting them from below.

CAUTION

Material damage to elastic elements and rubber parts can occur
as a result of:

 Incorrect storage

These parts must be stored laid flat and so they cannot distort, and
protected from ozone, heat, light, moisture and solvents.

IMPORTANT

Rubber parts are marked where possible with their production date. From this date,
they may only be stored for a maximum of 5 years.

3 Delivery, transport, storage and disposal

3.1 Delivery

After delivery, the coupling:

 must be checked for completeness and correctness of the delivery.
 must be examined for possible transport damage (which must be reported

immediately to the carrier).

3.2 Transport

Following transportation damage:

 Check the coupling carefully for damage.
 Consult the manufacturer (Address see chapter 1).

3.3 Storage

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Assembly and operating instructions

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CF-R Reintjes

M026-00003-EN

Rev. 2

RECYCLING

Ensure safe, environmentally responsible disposal of operating supplies
and exchange parts. For this, locally provided recycling facilities and
regulations must be utilized.

3.3.1 Storage location

Requirements imposed on the storage location:

 Moderately ventilated and low in dust
 Dry (max. 65% humidity)
 Temperature stabilized (-10°C to +25°C)
 Free of ozone-producing devices such as light sources and electric motors
 Free of UV light sources and direct sunlight
 Do not store solvents and disinfectants, fuels or lubricants, acids, chemicals

etc. in the same location

For more details, refer to DIN 7716.

3.3.2 Storage of couplings / flexible elements

 Unpack the parts.
 Check the packaging for damage. Replace if necessary.
 Check that the wax protection on steel components is intact. If necessary,

patch or renew.

 Package the parts (for prolonged periods of storage, enclose desiccant and

weld into film).

 Place the parts into storage.

3.4 Disposal

For disposal, the coupling parts must be separated where possible and sorted
according to material type.

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Assembly and operating instructions

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Rev. 2

4 Technical description

4.1 Characteristics

 Progressive characteristic with low rigidity and increased but moderate

rigidity at high torques

 Anti-spin
 Simple, reliable, no vulcanisation, the rubber elements are only subjected to

strain when pressure applied

 Specially developed, temperature-resistant elastomer CENTALAN with high

damping effect, can be used at high ambient temperatures up to 120°C
(248°F)

 For difficult operating conditions or applications, we recommend the use of

our special "HD" rollers, these are also resistant to oil and can be used at
ambient temperatures up to 140°C (284°F)

 In small gearboxes with splined shafts at the input shaft, the coupling may

move in an axial direction. For this reason, there is a retainer plate mounted
on the outer flange that secures the coupling axially

 Well proven in use and approved by classification organisations
 High dissipation due to intensive internal and external ventilation
 Economical and service-friendly
 Simple mounting - axial plug-in capability
 Protected by international patents
 Direction of motor rotation only counterclockwise (CCW) (looking onto the

motor flywheel)

4.2 Specifications

The specifications can be found in the catalogue and the dimensions in the
installation drawing.

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Assembly and operating instructions

CENTAFLEX-R

CF-R Reintjes

M026-00003-EN

Rev. 2

WARNING

Injuries can occur as a result of:

 Contact with rotating parts

Before starting work at the coupling, switch off the plant and secure
against unintentional start-up.

WARNING

Injury and material damage can occur as a result of:

 Assembly of the coupling in the wrong sequence

Only ever assemble the coupling in the described sequence.

WARNING

Injury and material damage can occur as a result of:

 Falling coupling components

Secure coupling components against falling to the floor.

CAUTION

Material damage can occur as a result of:

 Soiled joint surfaces

The surfaces that are to be joined must be free of dirt, preservatives
and lubricants.

IMPORTANT

 Use suitable lifting devices for assembly.
 Elements for connection of the coupling to customer components do not form part

of the delivery.

 Part illustration and marking may different slightly from installation drawing and

delivery state.

5 Mounting

5.1 General assembly instructions

Any work method which impairs the safety of the coupling is prohibited.
The user undertakes to notify the manufacturer immediately of any changes
occurring at the coupling which could impair safety (address see chapter 1).

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Assembly and operating instructions

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CF-R Reintjes

M026-00003-EN

Rev. 2

Item

Info

Designation

Remark

2 Inner part

A Gear housing flange

Customer part

F Check gauge

Customer part

5.2 Examination for sufficient axial play in the coupling

Fig. 5-1 Examination for sufficient axial play in the coupling

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Assembly and operating instructions

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Rev. 2

 Slightly lubricate the conus of the gear shaft.
 Push the inner part (2) onto the gear shaft hand-tight.
 Hand-screw the check gauge (F) carefully with screw and washer to the gear

shaft.

 Determine dimension L.
 Infer the check gauge L from the installation drawing.
 The measurement L must be equivalent to the check gauge L of the drawing.
 Loosen the screw of the connection check gauge (F) and gear shaft and

remove with washer and check gauge (F).

 Mount inner part (2) onto the gear shaft (see chapter 5.3).

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Assembly and operating instructions

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Rev. 2

Item

Info

Designation

Remark

2 Inner part

2.1 Hub

E

Gear shaft

Customer part

a Thread 1/4"

WARNING

Injury and material damage can occur as a result of:

 Non-compliance with the operating instructions for the hydraulic

pumps

Before carrying out work with the hydraulic pumps, do not fail to read
their operating instructions. Only ever work with hydraulic pumps as
described in their operating instructions.

WARNING

Injury and material damage can occur as a result of:

 Hydraulic fluid spraying out

Use protective goggles.

5.3 Mounting the inner part

Fig. 5-2 Mounting the inner part

 Lightly oil the cone of the gear shaft (E).
 Push the inner part (2) onto the gear shaft (E).

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Rev. 2

IMPORTANT

We recommend the following mounting fluids:

 For mounting:

Oil with a viscosity 300 mm2/s at 20°C, e.g. SKF LHMF300

 For dismantling:

Oil with a viscosity 900 mm2/s at 20°C, e.g. SKF LHDF900

WARNING

Material damage can occur as a result of:

 Too fast increase of the expanding pressure in the hub

The increase of the expanding pressure may not exceed

35 bar/minute.

WARNING

Material damage can occur as a result of:

 Insufficient expanding pressure in the hub

If the expanding pressure is too low, the necessary pushing pressure is
too high.

IMPORTANT

Do not place a load on the hub for 24 hours.

 Connect the pump for expanding the hub (2.1) to the thread (a).
 Screw the pump for pushing on the hub to the gear shaft (E).
 Build up the oil pressure to push on the hub.

 Slowly build up oil pressure for expanding the hub (p

= 1500 bar).

max

 Build up the oil pressure alternately until the lift path (p up) of the hub (2.1)

is reached (for p up and reference faces, see installation drawing).

 Decrease the oil pressure for expanding the hub.
 Remove the pump for expanding the hub from the hub (2.1).
 Maintain the oil pressure for pushing on the hub for one hour.
 Decrease the oil pressure for pushing on the hub.
 Remove the pump for pushing on the hub from the gear shaft (E).
 Turn the hub (2.1), drain oil out of the thread (a) and dispose correctly.

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Assembly and operating instructions

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Rev. 2

Item

Info

Designation

Remark

1 Rubber rollers

2 Inner part

3

Outer part

4

Washer

A

Gear housing flange

Customer part

B Flywheel housing

Customer part

C Flywheel

Customer part

5.4 SAE connection dimensions

Fig. 5-3 SAE connection dimensions

Table 5-1 SAE connection dimensions

 Check flywheel dimensions by means of previous figure and table.

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Assembly and operating instructions

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Rev. 2

Item

Info

Designation

Remark

3 Outer part

4 Washer

C Flywheel

Customer part

D Screw

No scope of supply

WARNING

Injuries and material damages can occur as a result of:

 Incorrect screw firmness and tightening torque at screw

connections on SAE flywheels

Screws and tightening torques according to
CENTA data sheet D013-017 (see Annex).

5.5 Mounting the outer part

Fig. 5-4 Mounting the outer part

 Push the outer part (3) into the centring of the flywheel (C).
 Screw the outer part (3) with screws (D) and washers (4) to the flywheel (C).

The connection components are not contained in the scope of delivery.

CENTA Antriebe Kirschey GmbH 19 / 35

Use the washers provided (4).

Assembly and operating instructions

CENTAFLEX-R

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Rev. 2

Item

Info

Designation

Remark

1 Rubber roller

2

Inner part

3 Outer part

C Flywheel

Customer part

t Largest diameter

Of rubber roller (1)

u Deepest point of pockets

Of inner part (2)

IMPORTANT

Lay in the rubber rollers with its largest outer diameter into the deepest point of the
pockets of the inner part.

5.6 Inserting the rubber rollers

Fig. 5-5 Inserting the rubber rollers

 Insert the rubber rollers (1) so into the pockets of the inner part (2) that

their largest diameter (t) they will lay at the deepest point of the pockets (u).

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Item

Info

Designation

Remark

1 Rubber roller

2 Inner part

3

Outer part

C Flywheel

Customer part

K Assembly tape/cord

T Pockets

IMPORTANT

To easy assembly, only moisten the pockets of the outer part with soap solution
(10% liquid soap with 90% water) or silicone spray.

Fig. 5-6 Assembly tape/cord

 Secure the rubber rollers (1) with assembly tape/cord (K) to stop them

falling out.

 Moisten the pockets (T) of the outer part (3) with soap solution or silicone

spray.

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Item

Info

Designation

Remark

1 Rubber roller

2

Inner part

3 Outer part

l Label „gear side“

k

The arrows must be congruent

t

Largest diameter

Of rubber roller (1)

v Deepest point of pockets

Of outer part (3)

CAUTION

Material damage can occur as a result of:

 Incorrect positioning of outer and inner parts

The arrows on the outer part and inner part must match up (see
previous fig.).

5.7 Connecting the driving and driven units

Fig. 5-7 Assembly arrows

 The arrows (k) of the outer part (3) and inner part (2) must be congruent.

Turn the inner part (2) towards the outer part (3) so, that the largest
diameter (t) of the rubber rollers (1) is at the deepest point of the pockets (v).

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Assembly and operating instructions

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Item

Info

Designation

Remark

1 Rubber roller

2 Inner part

3

Outer part

C Flywheel

Customer part

E Gear shaft

Customer part

K Assembly tape/cord

Fig. 5-8 Push toogther the driving and driven units

 Push the driving and driven units together until the rubber rollers (1) are

held in place by the outer part (3) and inner part (2) of the coupling.

 Remove the assembly tape/cord (K).
 Push the driving and driven units further together.
 Screw the driving and driven units together as described by the

manufacturer.

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Assembly and operating instructions

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Rev. 2

WARNING

Injury and material damage can occur as a result of:

 Loose screw connections

Before commissioning, the tightening torque levels of all screws must
be checked and corrected if necessary.

CAUTION

Motor damage can occur as a result of:

 High axial forces at the axial bearings of the crank shaft

Prior to commissioning the system, ensure that the crank shaft has
axial play.

5.8 After completed mounting

Before commencing long-term operation, the plant must successfully complete a
test run.

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Assembly and operating instructions

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Rev. 2

WARNING

Injury and material damage can occur as a result of:

 Worn coupling components

If the running noises change and/or vibrations occur turn the plant off
immediately.

6 Operation

Determine the fault and its root cause, and remedy.
The troubleshooting process is simplified by the table in the next chapter.
On principle in case of a fault, an analysis of the entire plant should be
performed.

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Faults

Possible root

causes

Remedy

Running noises or
vibrations in the
plant

Tolerance error

1. Switch off the plant

2. Check the concentricity tolerances of

the connections on the driving and
driven units

3. Trial run

Loose bolts

1. Switch off the plant

2. Check screw torque levels and correct if

necessary

3. Trial run

Breakage of the
rubber rollers

Tolerance error

1. Switch off the plant

2. Exchange the rubber rollers

3. Check the concentricity tolerances of

the connections on the driving and
driven units

4. Trial run

Damage due to
rotary oscillation:

 Motor idle

running speed
too low

 Cylinder failure

1. Switch off the plant

2. Exchange the rubber rollers

3. Trial run

Inadmissibly high
torque

1. Switch off the plant

2. Exchange the rubber rollers

3. Trial run

6.1 Operating faults, root causes and remedy

In case of uncertainty or if you have questions, please contact our head office
(address see chapter 1).

Table 6-1 Troubleshooting table

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Rev. 2

WARNING

Injuries can occur as a result of:

 Contact with rotating parts

Shield the coupling in accordance with the applicable accident
prevention regulations with an enclosure.

Exception:

The coupling is encased by the driving and driven units.

7 Care and maintenance

The coupling requires low maintenance. We recommend a visual inspection if the
driving and driven units have to be separated.

7.1 Work to be performed

7.1.1 Cleaning the coupling

 Remove any loose dirt from the coupling.

7.1.2 Visual inspection of the coupling

 Inspect the coupling for cracks, chips or missing parts.
 Replace faulty and missing parts.

7.1.3 Visual inspection of the rubber rollers

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Fig. 7-1 Oval deformation of the rubber roller

Assembly and operating instructions

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Item

Info

Designation

Remark

c Rubber roller
Delivery condition

d

Rubber roller
Limiting value of the oval deformation

IMPORTANT

Deposits of rubber dust are normal.

IMPORTANT

Exchange the rubber rollers in the event of:

 Damage

CF-R Size

øD

[mm]

X

[mm]

94

40

36

114

55

50

136

55

50

178

55

50

216

75

70

268

81

75

318

81

75

420

81

75

520

81

75

 Examine rubber rollers for cracks.
 Check the dimension of the rubber rollers.

Exchange the rubber rollers, if measured dimension is smaller than the

dimension “X”.
Dimensions “X” and øD of the rubber rollers have to be taken from the

following table.

Table 7-1 Rubber rollers

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7.1.4 Inspection of the screw connections

 Check the tightening torque levels of all screws and if necessary, correct.

7.2 Replacing defective parts

 Remove the coupling as described in chapter 8.
 Replace wearing parts.
 Mount the coupling as described in chapter 5.

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IMPORTANT

The coupling is dismantled in reverse order to the assembly process.

WARNING

Injuries can occur as a result of:

 Contact with rotating parts

Before starting work at the coupling, switch off the plant and secure
against unintentional start-up.

WARNING

Injury and material damage can occur as a result of:

 Falling coupling components

Secure coupling components against falling to the floor.

WARNING

Injury and material damage can occur as a result of:

 Dismantling of the coupling in the wrong sequence

Only ever dismantle the coupling in the described sequence.

IMPORTANT

Use suitable lifting devices for dismantling.

8 Dismantling

8.1 General dismantling instructions

Any work method which impairs the safety of the coupling is prohibited.
The user undertakes to notify the manufacturer immediately of any changes
occurring at the coupling which could impair safety (address see chapter 1).

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IMPORTANT

At pulling the driving and driven unit apart, secure the rubber rollers against falling
down.

WARNING

Injury and material damage can occur as a result of:

 Non-compliance with the operating instructions for the hydraulic

pumps

Before carrying out work with the hydraulic pumps, do not fail to read
their operating instructions. Only ever work with hydraulic pumps as
described in their operating instructions.

WARNING

Injury and material damage can occur as a result of:

 Hydraulic fluid spraying out

Use protective goggles.

WARNING

Injuries and material damages can occur by:

 Suddenly loosening hubs

Secure the hub with a hydraulic tool against sudden axial loosening.

8.2 Separating driving and driven units

 Loosen and remove the screw connections of the driving and driven units.

See Fig. 5-8:

 Pull the driving and driven units apart.

8.3 Removing rubber rollers

See Fig. 5-6:

 Remove the rubber rollers (1).

8.4 Dismantling the outer part

See Fig. 5-4:

 Loosen the screws (D) of the connection outer part (3) with flywheel (C) and

remove with washers (4).

 Pull the outer part (3) out of the centring of the flywheel (C) and remove it.

8.5 Dismantling the inner part

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IMPORTANT

We recommend the following mounting fluids:

 For mounting:

Oil with a viscosity 300 mm2/s at 20°C, e.g. SKF LHMF300

 For dismantling:

Oil with a viscosity 900 mm2/s at 20°C, e.g. SKF LHDF900

WARNING

Material damage can occur as a result of:

 Too fast increase of the expanding pressure in the hub

The increase of the expanding pressure may not exceed

35 bar/minute.

See Fig. 5-2:

 Connect the pump to the thread (a) of hub (2.1) to expand the hub.
 Screw the pump to the gear shaft (E), in order to hold the hub.
 Build up oil pressure in order to hold the hub.

 Slowly build up oil pressure to expand the hub (p

 Slowly reduce the oil pressure for holding the hub.
 Slowly reduce the oil pressure for expanding the hub.

 Repeat the above mounting section until the hub is completely released from

the gear shaft.

 Remove the pump for holding the hub from the gear shaft (E).
 Remove pump for expanding the hub from the hub (2.1).
 Turn the hub (2.1), drain oil out of the thread (a) and dispose correctly.

8.6 Reassembling the coupling

 Reassemble the coupling as described in chapter 5.

= 1500 bar).

max

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Assembly and operating instructions

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WARNING

Injury and material damage can occur as a result of:

 Mounting and/or utilization of non-original CENTA parts

Never use parts from other manufacturers.

IMPORTANT

Always replace the full set of rubber rollers.

9 Wearing and spare parts

A stock of the most important wearing and spare parts is the most important
condition to ensure that the coupling is functional and ready for operation at all
times.

We only provide a warranty for CENTA original parts.

Wearing parts of this coupling:

 Rubber rollers

When ordering a spare, specify:

 Order no.
 Coupling order no.
 Drawing no.

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10 Annex

10.1 CENTA data sheet D013-017 (SAE flywheel screw connection)

Validity:

For all dynamically non-stressed screw connections on SAE flywheels with
headless screws according to ISO 4014, ISO 4017 and ISO 4762 (DIN 912) with
standard metric thread according to DIN ISO 262 and further threads indicated
in the following table, if no deviating data are specified in CENTA documents.

Preparation of components to be screwed
Joining areas must be free of dirt, preservative and lubricant agents.

Preparation of oiled screws:
Additionally lubricate screws under the screw head and on the thread with motor
oil.
Use tightening torque for oiled screws.

Preparation of non-oiled screws:
Use screws as delivered.
Use tightening torque for non-oiled screws.

Screw tightening procedure:
rotating (by hand with torque wrench).

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Manufacturer:

CENTA Antriebe
Kirschey GmbH

Bergische Strasse 7
42781 Haan / GERMANY

Contact:

Phone [phone]
Fax [phone]
[e-mail]
www.centa.info
Product:

Highly elastic coupling CENTAFLEX-R

Model / series code:

CF-R(S) / 026S

Installation size:

94…520

Design:

all

Serial number:

according to shipping documents, if applicable

Authorised representative for the
compilation of the relevant technical
documents:

by order of Gunnar Anderseck
(Authorised Person Documentation)

Declaration of incorporation was issued:

Haan, 14.12.2009

by proxy Dipl.-Ing. Jochen Exner
(Design Management)

10.2 CENTA data sheet D026-900

Declaration of incorporation according to the EC Machinery
Directive 2006/42/EC, Appendix II B

We herewith declare that the incomplete machine

- provided this is possible as far as the scope of supply is concerned - complies

with the following basic requirements of the Machinery Directive 2006/42/EC
Appendix I, subchapters 1.1.2, 1.1.3, 1.1.5, 1.3.2, 1.3.3, 1.3.4 and 1.5.4.

In addition, we declare that the special technical documents for this incomplete
machine were compiled according to Appendix VII Part B and undertake to
forward these to the market monitoring authorities by request via our
"Documentation Department".

Commissioning of the incomplete machine is interdicted until the incomplete
machine has been incorporated in a machine and the latter complies with the
provisions of the EC Machinery Directive and the EC Declaration of Conformity
according to Appendix II A is on hand.

The declaration is invalidated by every modification to the delivered parts.

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