RINGSPANN DV 025 PFM User manual

Schaberweg 30-38
Phone [phone]
Fax [phone]
www.ringspann.com
[email protected]
61348 Bad Homburg
Germany
Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
E 09.760e

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
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 DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
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 friction pad distance
8.4 Connecting the signal cable (optional)
9. Start-up
10. Disassembling the brake
11. Maintenance
11.1 General maintenance
11.2 Permissible friction lining wear and exchanging of the friction pad
12. Accessories: Sensor for operating state monitoring
12.1 Mounting and connection of inductive transmitter for position monitoring

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
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 disc) 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 disc, 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.
•As a control brake, it maintains a particular tensile force within the material.
The braking force is produced by air pressure, and the brake is opened by springs of air
pressure.
2.2 Identification
These operating instructions apply for:
•The execution V, parallel attachment to the machine.
•The execution H, right-angled attachment to the machine.
•For brake disc thickness W = 12.5, 25, 30, 40 and for special widths.
•With thruster mounted right.
•With thruster mounted left.
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 disc) must be secured by the operator against unintentional
touching.

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 5
•With signal transmitter installation.
•With different friction pad variants (e.g. with cable for wear monitoring, higher sliding speed,
double friction surface or special friction materials.)
•With special frame.
There is a type plate on the brake with a 16-digit article number. The exact design of the brake is
defined by this article number only.
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.
2.3 Drawing and parts list
Drawing of brake DH, for model DV see catalogue data
Frame: In V execution DV 035 thruster only right version
Fig. 2.1

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 6
Part
Designation
Quantity
1
Thruster
1
2
Friction pad
2
3
Screw for friction pad
4
4
Swivel piece
2
5
Adjusting screw
2
6
Nut
2
7
Set screw
1
8
Nut
1
11
Tappet
1
12
Grooved nut KM 6
2
3. Intended use
The brake has been designed for use as a holding, control and stopping brake.
Use for any other purpose will be deemed improper.
4. Impermissible use
It is not permissible to operate the brake with a higher pressure than prescribed in the technical
catalogue data or with other media. The application of compressed air must be carried out using
air that is freed from dirt, pipe sinter, rust and condensation by a filter. 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 ready to install. The brake is
delivered depressurised. Sensors are delivered separately.
6. Handling and storage
The technical data of the brake such as air pressure, clamping force, air volume, dimensions and
weight are shown on the catalogue pages of the brake. The current data can also be found on
the RINGSPANN website www.ringspann.com.
The brake can be stored for 12 months in an enclosed and dry place. It is to be made sure that
no condensation develops. Damp storage rooms are not suitable. If storing the brake for a period

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 7
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.
7. Technical prerequisite for reliable operation
Fastening the brake to stable and low-vibration 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 disc 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 disc 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 friction blocks.
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 disc.
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
The standard brake callipers are fastened to the machine part with 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).
Caution - danger of injury!
If compressed air activated during assembly, the brake can suddenly close!
Before assembly it is to be checked that the customer connection part is even and that the axial
run-out between the brake disc and the mounting surface of the brake is within a tolerance of 0.3
mm.
Examine the axial movement of the brake disc. The axial movement must not be greater than ±
0.3 mm.
The maximum permissible lateral run-out of the brake disc is
0.1 mm. A greater lateral run-out can cause the brake unit to rattle and shake.

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 8
Fig. 8.1
The connecting plate for the brake as well as the brake disc must be checked for dimensional
accuracy. For this purpose, the connection dimensions shown on the catalogue data sheet or
installation drawing are to be checked.
Important!
Check whether the brake disc can be freely rotated.
8.3 Adjusting/readjusting the friction pad distance
The friction pad distance is set after the brake calliper has been assembled and after friction
block wear through adjusting/readjusting. See also Fig. 2.1.
•For the purpose of adjusting, loosen the nut (item 6) and turn the adjusting screw (item 5) into
the lever by approx. 2 rotation.
•Loosen the nut (item 8) at the set screw (item 7)
•With the set screw (item 7), set a total clearance between the brake pad and brake discs of
0.5 on both side or of 1 mm on one side.
•Secure the position of the set screw (item 7) using the nut (item 8).
•With the adjusting screws (item 5), the total clearance of 1 mm on one side is evenly spread
to 0.5 mm on both side. Once the adjustment has been carried out, secure the position of the
adjusting screws (item 5) using the nuts (item 6).

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 9
•If there is wear to the friction blocks, a braking setting must be performed as well as an
adjustment/readjustment of the friction pads.
Important!
Before start-up, the air gap must be adjusted to 0.5 mm on both side!
Important!
If the friction pads are worn, a braking force setting must be performed through
readjusting the friction pads.
Important!
It must be ensured that the friction pads (item 2) do not grind on the brake disc
while the brake is released!
8.4 Connecting the signal cable (optional)
Attach the signal cable (e.g. via a signal lamp) to a 24V control voltage. If the maximum friction
lining abrasion limit is reached, contact with the neutral conductor will be made and the signal
lamp will light up.
Fig. 8.2

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 10
9. Start-up
Only full-face contact of the two friction pads (item 1) on the brake disc as well as a rapid heating
of the friction linings 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 disc 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% are possible if the
brake will use as a parking brake.
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 disc) must be secured by
the operator against unintentional touching.
Remove the screws that serve for fastening the brake to the machine frame. The brake calliper
can now be removed from the mounting surface.
11. Maintenance
11.1 General maintenance
Depending on 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 friction pads for wear.
•Check in released status. The friction pads do not grind on the brake disc and that there is an
even air gap on both sides.
•Check the screw connection of the brake calliper and the screw connection of the friction
blocks for firmness.
•Check both brake calliper levers for ease of movement.
•Clean the bearing and sliding points.
•Oil or grease the bearing and sliding points.
•Check the thruster and hose connection for tightness.

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 11
Important!
The friction linings must not come into contact with the lubricant!
des Freilaufs führen!
11.2 Permissible friction lining wear and exchanging of the friction pad
Life-threatening danger!
Friction pads may only be changed when the system or the work machine is
stationary!
Important!
If the friction pads has 5 mm thickness, the friction pads has to be change.
The friction pads always change in pairs.
Only original RINGSPANN friction pads may be used.
Before exchanging the friction 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.
Loosen the nuts at the screws (item 6 and 8). Turn the adjusting screw (item 5) and set screw
(item 7) back until the friction pads (item 2) can be exchanged without any problems. Re-secure
the adjusting screws and the set screw with the nuts (item 6 and 8).
After exchanging the friction pads, tighten the screws (item 3) at the friction pads (item 2) slightly
at first.
Apply the brake. The clamping force of the brake will cause the friction pads (item 2) to be
pushed flat onto the swivel pieces (item 4), eliminating any air gap.
You can now tighten the screws (item 3) with a tightening torque of 30 Nm.
After exchanging friction pads, you must reset the brake torque and clearance as described in
point 8.3.

Installation and operating instructions for
Brake DV/DH 025/030/035 PFM
pneumatically activated - spring released
E 09.760e
Issue: 18.02.2022
Version: 4
Drawn: FRMA
Checked: EISF
Pages: 12
Page: 12
Important!
After exchanging friction pads, a running-in process should be performed in
order to reach the maximum brake torque.
12. Accessories: Sensor for operating state monitoring
12.1 Mounting and connection of inductive transmitter for position monitoring:
Installation of the inductive proximity switch provided
Life-threatening danger!
The inductive transmitter may only be assembled and changed when the system
or the work machine is stationary!
The inductive proximity switches are enclosed loose with the delivery.
If a holder is needed to attach the inductive proximity switch to the brake, this can either be
ordered separately or can be purchased as part of the sensor kit.
Switching function : PNP (normally open contact) Switching distance: 1.5 mm, flush-mountable
Operating voltage : 10....30 V DC Max. switching current : 200 mA
Voltage drop : < 2.5 V Inverse-polarity protection : Yes
Temp. range : -25 to +70°C Protection class : IP 68
Connection diagram of the inductive transmitter
Fig. 12.1