RINGSPANN DT FEA H-ST Series User manual

Schaberweg 30-38
Phone [phone]
Fax [phone]
www.ringspann.com
[email protected]
61348 Bad Homburg
Germany
Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
E 09.793e

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 2
Important
Please read these instructions carefully before installing and operating the product. Your particular
attention is drawn to the notes on safety.
These installation and operating instructions are valid on condition that the product meets the
selection criteria for its proper use. Selection and design of the product is not the subject of these
installation and operating instructions.
Disregarding or misinterpreting these installation and operating instructions invalidates any product
liability or guarantee by RINGSPANN; the same applies if the product is taken apart or changed.
These installation and operating instructions should be kept in a safe place and should accompany
the product if it is passed on to others -either on its own or as part of a machine- to make it
accessible to the user.
Safety Notice
•Installation and operation of this product should only be carried out by skilled personnel.
•Repairs may only be carried out by the manufacturer or accredited RINGSPANN agents.
•If a malfunction is indicated, the product or the machine into which it is installed, should be
stopped immediately and either RINGSPANN or an accredited RINGSPANN agent should be
informed.
•Switch off the power supply before commencing work on electrical components.
•Rotating machine elements must be protected by the purchaser to prevent accidental contact.
•Supplies abroad are subject to the safety laws prevailing in those countries.
This is a translation of the German original version!
In case of inconsistencies between the German and English version of this
installation and operating instruction, the German version shall prevail.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 3
Contents
1. General notes
1.1 General safety instructions
1.2 Special safety instructions
2. Design and function / parts list
2.1 Function
2.2 Identification
2.3 Drawing and parts list
3. Intended use
4. Impermissible use
5. Condition as delivered
6. Handling and storage
7. Technical prerequisite for reliable operation
8. Installing the RINGSPANN brake
8.1 General instructions regarding assembly and installation
8.2 Assembly description
8.3 Adjusting / readjusting the brake pad distance
9. Start-up
10. Disassembling the brake
11. Maintenance
11.1 General maintenance
11.2 Permissible friction lining wear and exchanging of the brake pad
12. Options
12.1 Mounting and connection of micro switch for position monitoring and pad wear control
12.2 Handrelease

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 4
1. General notes
1.1 General safety instructions
Read these installation/operating instructions carefully before putting the brake into operation.
Consider these instructions as well as the drawings in the individual sections.
All work with and on the brake is to be carried out taking into account that "safety is top priority".
Switch the drive unit off before carrying out work on the brake.
Rotating parts (e.g. brake drum) must be secured by the operator against unintentional touching.
1.2 Special safety instructions
2. Design and function / parts list
2.1 Function
The brake is a machine element with which accelerated masses can be safely slowed down. In
combination with a brake drum, you have a complete brake for the effective safeguarding of
machines and systems. Thanks to its universal design, it fulfils the following functions:
•As a holding brake, it prevents a stationary shaft from starting unintentionally.
•As a stopping brake, it brings a rotating shaft to a halt.
The braking force is produced by springs, and the brake is opened electro hydraulically.
At the standard brake FEA with automatic adjustment if pad wear appears, the automatic
adjustment works and no wear adjustment is necessary to pre-load the springs in the thruster.
The readjustment is only necessary to adjust the gap on each side between the friction pad and
brake drum.
Life-threatening danger!
When assembling, operating and maintaining the brake it is to be
ensured that the entire drive train is secured against being switched on
unintentionally. Moving parts can cause severe injury. Rotating parts
(e.g. brake drum) must be secured by the operator against unintentional
touching.
Strongly pre-loaded pressure springs are installed in the springed
thrusters of the brake. The springed thruster may only be disassembled
by the factory.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 5
2.2 Identification
These operating instructions apply:
•With signal transmitter installation.
•With different friction block variants (higher sliding speed, double friction surface or special
friction materials).
•With special frame.
•With internal throttle valve can adjust delay time.
•With micro-switch wear control and status control.
•With hand release lever.
There is a type plate on the brake and the thrustor. The exact design of the brake and the
thrustor is defined by this type plates it shows model name, options in shortcuts, serial number,
manufacture year, main characteristics.
As well as these instructions, please also consider the catalogue data for the brake at
www.ringspann.com and the drawings in the individual sections.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 6
2.3 Drawing and parts list
Overview illustration of brake DT XXX FEA-XXX H-ST NC with all options for details
look into catalog.
Fig. 2.1
Part
Designation
Quantity
1
Thruster
1
2
Brake pad
2
3
Axes brake pad
2
4
Washer
4
5
Split pin
4
6
Nut
2

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
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Page: 7
7
Adjust screw
2
8
Adjusting nut adjustable brake spring
1
9
Hand release lever (optional)
1
10
Micro-switch wear control (optional)
1
11
Micro-switch status control (optional)
1
12
Nut for adjusting part
1
13
Adjusting part
1
14
Adjusting spindle
1
15
External adjustable brake spring
1
3. Intended use
The brake has been designed for use as a holding and stopping brake IP class 56.
The brake is suitable for upright installation on horizontal plain.
Use for any other purpose will be deemed as improper.
4. Impermissible use
It is not permissible to operate the brake with another voltage than prescribed in the technical
catalogue data or with other media. Unauthorised constructional changes to the brake are also
not allowed.
5. Condition as delivered
The brake is tested prior to delivery. The brake is delivered not ready to install. Ordered micro
switch are already installed.
When delivered, the clamping gap of the brake between the brake pad and the brake drum has
to be adjust. When the brake is applied, the brake pad has to be adjust on each side with a gap
of 1.5mm.
6. Handling and storage
The technical data of the brake such as clamping force, oil volume, dimensions and weight are
shown on the catalogue pages for the brake. The current data can also be found on the
RINGSPANN website www.ringspann.com.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 8
The brake is delivered in preserved condition and can be stored for 12 months in an enclosed
and dry place. It is to make sure that no condensation develops. Damp storage rooms are not
suitable. If storing the brake for a period longer than 12 months, as well as after any transport,
the brake must be activated once in order to prevent the seals from getting stuck down. Please
note if you use the FEA automatic brake without brake drum do not often switch the brake
otherwise the automatic will work and the brake pad wear compensation start its adjustment
process.
7. Technical prerequisite for reliable operation
Fastening the brake on low vibration stability machine parts will ensure quiet braking without
creaking.
8. Installing the RINGSPANN brake
8.1 General instructions regarding assembly and installation
Before installing the brake, the brake drum must be cleaned with alcohol (e.g. spirit (ethanol) or
isopropyl alcohol) or with water-based tenside solutions (soapy water or the like).
If cleaning the brake drum with a diluent, acetone or brake cleaning agent, it must be ensured
that these agents and no residues of these agents come into direct contact with the brake pads.
This must be ensured for pure holding brakes in particular, since no dynamic braking takes place
that would remove any diluent residues from the brake drum.
Important!
Residues from oil and anti-rust agent considerably reduce the coefficient of
friction and thus also the braking and holding torque!
8.2 Assembly description
Thrusters are always supplied complete with their oil filling HL10 to standard DIN 51524. The
most employed oil mark is AGIP ACER MV10. Time by time, check out the oil level through the
oil level control plug and eventually add it through the oil drain plug.
For application options heat resistance up to 100°C design and down to low temperature -40°C,
use the oil indicated on the type plate thrustor.
Information!
The service life of the brake system will extend depending on how high the
purity of the oil is.
des Freilaufs führen!

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 9
Important!
Leaked oil must be completely removed. Leaks are to be removed immediately!
Before mounting onto the brake drum, the brake caliper must be released (opened) and
adjusting the distance pad to the brake drum. This can be done by:
•Connecting the electrical connection and activate the brake
•Hand release (optional)
•Loosen the adjusting spindle (item 14) in order to unreleased the brake for assembly
•Adjusting the distance 1.5 free gap between pad and brake drum
The standard brake callipers are fastened to the machine part with 4 screws of strength class 8.8
or higher. (The screws are not included in the scope of supply. Please see the catalogue pages
for quantities, sizes and lengths).
Information!
The installation of the brake if the drivetrain: motor, gearbox, somethink else
and the brake drum is already install or you will change to a new brake if the
brake is already installed. The exchange or installation of the brake is easy
remove the down bolt of the right arm connection to the basement see
Fig. 10.1. Before you remove the bolt please remove one split pin and the two
locking grup screws for the bolt in the basement and than you can swing the
arm aside replace the brake. The Installation use the other way around. Please
secure the two grup screws with screw locking.
Caution - danger of injury!
If the brake is open with the electrical switch, do not switch the brake during
assembly, the brake can suddenly close!
Before assembly it is to be checked that the customer connection part is even and the mounting
surface of the brake is within a tolerance of 0.1 mm.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 10
The connecting plate for the brake as well as the brake drum must be checked for dimensional
accuracy. For this purpose, the connection dimensions shown on the catalogue data sheet or
installation drawing must checked.
The surface has to be even only for the contact surface to the customer connection part for all
dimension look into the catalogue.
The supporting plane must lie in distance of h +/-0,1 from the drum axe.
Examine the axial movement of the brake drum.
The axial movement must not be greater than ± 0.1 mm.
The maximum permissible lateral run-out of the brake drum is 0.1 mm.
A greater lateral run-out can cause the brake unit to rattle and shake.
Fig. 8.1
Important!
Check if the brake disc can be rotate freely.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 11
Important!
If the brake calliper is manually released, this manual release must be removed
again to ensure a functional brake!
Electric connection: The cable may entry from both sides of terminal box. The gland size is Pg11
for 451 thruster and Pg16 for all others thruster. Since the sense of rotation doesn’t affect the
thrustor’s function you don’t need to respect any sequence by connecting the 3 phases.
Tension swings of ±10%, even small changes in frequency affect the lifting force.
Direct parallel connection with crane motor should be avoided.
Don’t switch on before having closed the terminal box cover and having connected the earth
wire.
Important!
Don’t activate the brake before having closed the terminal box cover and having
connected the earth wire!

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 12
Fig. 8.2
8.3 Setting / adjusting of the brake pad distance
The brake pad distance is set after the brake calliper has been assembled and after pad wear
through adjusting / readjusting, see Fig. 2.1.
The setting/adjusting process of the FEA version automatic brake has to be carried out only by
using the two-adjusting screw (item 7), shown in Fig. 2.1.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
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Page: 13
Fig. 8.3
Maintenance setting / adjusting FEA automatic wear compensator
•Apply the brake.
•For the purpose of adjusting, loosen the nut (item 6) and turn the adjusting screw (item 7) by
approx. 2 revolutions out of to increase the gap.
•The proper function of the automatic compensator can be easily evaluating by observing the
piston stop-position across the times. It must remain constant! If the devise doesn’t work
correctly little by little, the piston stops position will be lower and lower until the end position is
reached, where the braking effect will miss with great danger for the personnel safety.
•With the adjusting screws (item 7), the total clearance of 3 mm on one side is evenly spread
to 1.5 mm on each side Fig. 2.1 measure a on both side balancing. Once the adjustment has
been carried out, secure the position of the adjusting screws (item 7) using the nuts (item 6).

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
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Maintenance FEA manual setting / adjustment for changing brake pads with reset the automatic
wear compensator
•Apply the brake.
•For the purpose of changing the brake pads, loosen the nut (item 6) and turn the adjusting
screw (item 7) out of to maximum surface of the holder.
•Loosen the fork Fig. 8.3 and turn the adjusting spindle (item 14) back until you have enough
free space to mount the new brake pads.
•Now you can loosen the old brake pads and move then the pads topward for easy exchange.
The new pads mount in the same way fix the axes (item 3) the washer (item 4) and the split
pin (item 5) don’t forget to bend the split pin (item 5).
•Reassemble the fork Fig. 8.3 and activate the brake multiple times the automatic process will
start and adjust the clear distance between the brake pads of approx. 3 mm.
•With the adjusting screws (item 7), the total clearance of 3 mm on one side is evenly spread
to 1.5 mm on each side Fig. 2.1 measure a on both side balancing. Once the adjustment has
been carried out, secure the position of the adjusting screws (item 7) using the nuts (item 6).
•If there is wear to the brake pad, the automatic process will start and the braking force setting
must not be performed but the balancing measure a between the lever hast to adjust time by
time to avoid uneven pad wear.
Important!
As the device provides the self-adjustment, no intervention is required for this
function. By beginning it is valuable making sure that the device is working
correctly, and have no been damaged during transportation or installation.
The setting at the automatic brake will only balancing the measure a Fig. 2.1
between the lever to avoid uneven pad wear!
If the thruster rod like Fig. 8.4 right side representation full inside the thruster
there is the danger you will loose the hole clamping force. This state must be
avoid.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
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Important!
It's very important verifying the stop position of the piston, taking into account
that it should not go closer than 10-15mm see Fig. 8.4 from its limit. It is
recommended performing this inspection fairly often at the beginning of the
installation activity. Yet, if after repeated intensive inspections, it is apparent that
the piston stop-position remains quite unchanged, you can prolong the
inspection frequency. If by braking, it is evident that the stopping intervention
hasn’t been as effective as usually expected, stop using the brake and check up
the proper function of the automatic lining wear compensator.
Fig. 8.4
Important!
Before start-up, the air gap must be adjusted to 1.5 mm on either side!

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
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Page: 16
Important!
It must be ensured that the brake pad (item 2) do not grind on the brake drum
while the brake is released!
Important!
If the brake is released by Hand release lever (item 9), this hand release lever
must be removed once the brake has been installed to ensure a functional
brake!
If the thruster rod like Fig. 8.4 right side representation full inside the thruster
there is the danger you will loose the hole clamping force. This state must be
avoid it is necessarily to adjust before!
The brake has an external adjustable braking spring (item 15) it is housed into a square tube
provided with a scala easy torque setting for the brake over the adjusting nut (item 8)
see Fig. 2.1 Before you change the setting the adjusting shaft is secured over a srew with a nut
this has to be untie before setting and afterwards the screw hast to be fix and counter locked with
the nut.
Important!
If you set the clamping force with the adjusting nut (item 8) too low the braking
torque can be to low to hold the load!
9. Start-up
Only full-face contact of the two brake pad (item 2) on the brake drum as well as a rapid heating
of the brake pads to approx. 200°C will ensure an optimal braking effect. It is therefore
necessary to brake several times and for a short duration when the brake drum is rotating.
Important!
If the brakes are used as holding brakes, then the braking torques indicated in
the catalogue will not be reached. Reductions of up to 50% of the braking torque
are possible.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 17
10. Disassembling the brake
Life-threatening danger!
When disassembling the brake it is to be ensured that the entire drive train
is secured against being switched on unintentionally. Rotating parts can
cause severe injury. Rotating parts (e.g. brake drum) must be secured by
the operator against unintentional touching.
The brake force can be reset by loosen the adjusting spindle (item 14) if you have the automatic
brake dismantle the fork before. Then the brake pad, are free you can remove the screws that
serve for fastening the brake to the machine frame. The brake calliper can now be removed from
the mounting surface.
Information!
The installation of the brake if the drivetrain: motor, gearbox, somethink else
and the brake drum is already install or you will change to a new brake if the
brake is already installed. The exchange or installation of the brake is easy
remove the down bolt of the right arm connection to the basement
see Fig. 10.1. Before you remove the bolt please remove one split pin and the
two locking grup screws for the bolt in the basement and than you can swing
the arm aside replace the brake. The Installation use the other way around.
Please secure the two grup screws with screw locking.
Fig. 10.1

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
Checked: EISF
Pages: 22
Page: 18
11. Maintenance
11.1 General maintenance
Depending on environmental conditions or progressive aging and how much the brake is used in
operation, maintenance is to be carried out on it at intervals of 4 to 12 weeks.
The following is to be carried out when performing maintenance:
•Check the brake pads for wear.
•Check that, when the brake calliper is released, the brake pads do not grind on the brake
drum and that there is an even air gap on both sides.
•Check the screw connection of the brake.
•Check both brake calliper levers for ease of movement.
•Clean the bearing and sliding points.
•Grease the bearing, adjust spindle and sliding points.
•Check the thruster for tightness and Oil level every 5 year the thrustor needs full service in
Packing, Wiper, Bearings and Hydraulicoil please look into the thrustor manual.
Important!
The brake pads must not come into contact with the lubricant!
des Freilaufs führen!
11.2 Permissible pad wear and exchanging of the brake pad
Life-threatening danger!
Brake pad may only be changed when the system or the work machine is
stationary!
Important!
The brake pads have a thickness of 8 - 12 mm when new. The residual lining
thickness of 2 mm is necessary, the brake pads are always be exchanged in
pairs. If you have no wear at the brake pad after 5 - 7 years working time you
also have to replace the brake pads. Because of the brake pad age you will
loose brake performance.
Only original RINGSPANN brake pads may be used.

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
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Page: 19
Before exchanging the brake pads, ensure that the mass held by the brake is secured against
moving, since parts of the brake need to be loosened for this purpose.
Open the brake with the prescribed voltage.
Loosen the nuts at the screws (item 6) both side. Turn the adjusting screw (item 7) and threaded
rod (item 14) back until the brake pads (item 2) can be exchanged without any problems.
Dismantle the split pin (item 5), the washer (item 4) and the axes (item 3). The brake pad must
be pushed topward for easy change process. Change the brake pads and assemble the axes
brake pad (item 3) washer (item 4) and split pin (item 3). Please note don’t forget to bend the
split pin (item 5).
After exchanging brake pads, you must reset the brake torque and clearance as described in
point 8.3.
Important!
If the brake is opened by manual hand release, this manual hand release must
be removed again once the brake has been installed to ensure a functional
brake! Split pin item 5 has to be bend!
Important!
After exchanging brake pads, a running-in process should be performed in order
to reach the maximum brake torque.
12. Options
12.1 Mounting and connection of micro switch for position monitoring and pad wear control
Please note if you have the option micro switch the micro switch delivery mounted on the brake.
The micro switch cannot mount afterwards.
Life-threatening danger!
The micro switch may only be assembled and changed when the system or the
work machine is stationary!

Installation and operating instructions for
Brake DT XXX FEA-XXX H-ST
spring activated –electro hydraulically
released
E 09.793e
Issue: 12.05.2021
Version: 2
Drawn: BAHS
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Page: 20
General data
Ambient temperature: -25°C … +80°C
Max. actuation frequency: 3600 operating cycles1/hour
Mechanical endurance: 20 million operating cycles
Mounting position: any
Safety parameters: B10d: 40,000,000 for NC contacts
Voltage of the micro-switch
Alternating current: AC15 (50÷60 Hz)
Ue (V) 250 400 500
Ie (A) 6 4 1
Direct current: DC
Ue (V) 24 125 250
Ie (A) 6 1,1 0,4
Protection against short circuits: fuse 10 A / 500 V type aM
Protection degree of the housing: IP67
In conformity with standard: UL 508, CSA 22.2 No.14
In conformity with the requirements of:
Low Voltage Directive 2006/95/EC, Machinery Directive 2006/42/EC and
EMC Directive 2004/108/EC.
Connection diagram of the micro switch
Always connect the safety circuit to the NC contacts
(NC contacts: 11 - 12; 21 - 22 or 31 - 32)
Fig. 12.1