Festo DFPD-HD-...-HW series User manual

Quarter turn actuator with hydraulic
manual override DFPD-HD-...-HW
Festo AG & Co. KG
Postfach
73726 Esslingen
Deutschland
[phone]
www.festo.com
Operating instructions 8066117
1612
[8066119]
Original: de
Quarter turn actuator DFPD-HD-...-HW English.............................
1 About this document
This document describes the use of the hydraulic manual override on the quarter
turn actuator DFPD-HD-...-HW. Certain aspects of use are described in other
documents and must be observed èChap. 1.1.
1.1 Applicable documents
Document Table of contents
Operating instructions for DFPD-HD-... Product overview, mounting/dismantling,
transport and storage, commissioning,
technical data of the quarter turn actuator
Fig. 1
All available documents for the product èwww.festo.com/pk
2 Safety
 Take into consideration the legal regulations for the respective destination.
 Observe product labelling.
 Observe applicable documents èChap. 1.1.
3 Use for intended purpose
According to regulation, the hydraulic manual override is used for the manual
emergency control of the quarter turn actuator DFPD-HD-...-HW in case of a failure
of the compressed air supply.
 The product may only be used in its original status without unauthorized
modifications.
 Only use the product if it is in perfect technical condition.
 Mount the quarter turn actuator with the hydraulic device only horizontally.
4 Service
 Contact the regional Festo contact if you have technical questions
èwww.festo.com.
5 Product overview
5.1 Structure of DFPD-HD-...-S-...-HW
1
2
3
4
6
5
7
1Hydraulic pump
2Multiple way valve
3Reservoir
4Bypass valve
5Pneumatic cylinder
6Supply port (2)
7Exhaust port
Fig. 2
5.2 Structure of DFPD-HD-...-RD-...-HW
5
4
3
2
1
6
1Hydraulic pump
2Multiple way valve
3Reservoir
4Bypass valve
5Exhaust port
6Gear units
Fig. 3
6 Commissioning
Note
Commissioning should only be carried out by qualified personnel.
– Information on commissioning the quarter turn actuator
èOperating instructions for DFPD-HD-...
6.1 Filling the hydraulic device with oil
1. Remove the transport stopper from the exhaust port.
2. Check the oil level.
If the piston of the hydraulic unit is completely extended, the oil level in the
reservoir lies about 2.5 cm below exhaust port.
3. Refilling the oil èTechnical data.
4. Install the exhaust port.
Double-acting quarter turn actuator
1. Put the hydraulic bypass valve in the open position (OPEN).
2. Pressurise the port (2) until the piston is at the end stop of the hydraulic
cylinder.
3. Switch off the compressed air supply.
4. Put the hydraulic bypass valve in the closed position (CLOSE).
5. Remove the exhaust port èFig. 3, 5.
6. Remove the transport stopper from the top of the lower cylinder flange.
7. Put the multiple way valve in the open position (OPEN).
8. The pump lever moves until oil emerges from the connecting sleeve of the
cylinder flange.
The oil level must not drop below the feed tube.
9. Insert the provided exhaust stopper into the lower cylinder flange.
10. Actuate the pump lever until the piston extends completely.
11. Remove the transport stopper from the top of the adapter flange.
12. Put the multiple way valve in the closed position (CLOSE).
13. The pump lever moves until oil emerges from the connecting sleeve of the
adapter flange.
14. Insert the provided exhaust stopper into the adapter flange.
15. Put the multiple way valve into the neutral position.
16. Switch on the compressed air supply.
17. Run the quarter turn actuator through 2 complete cycles.
18. Put the hydraulic bypass valve in the open position (OPEN).
19. To vent the system, run the quarter turn actuator through 2 complete cycles.
20. Check the oil level in the reservoir.
21. Reinsert the exhaust port.

Single-acting quarter turn actuator
1. Switch off the compressed air supply.
èSprings slacken and move the piston to the end stop of the hydraulic
cylinder.
2. Remove the exhaust port.
3. Check the oil level in the reservoir.
4. Remove the transport stopper from the top of the lower cylinder flange.
5. Put the hydraulic bypass valve in the open position (OPEN).
6. The pump lever moves until oil emerges from the connecting sleeve of the
cylinder flange.
The oil level must not drop below the feed tube.
7. Insert the provided exhaust stopper into the lower cylinder flange.
8. Actuate the pump lever until the piston extends completely.
èThe spring is compressed.
9. To vent the hydraulic line, keep the pressure on the spring constant for
3–5minutes.
10. Slowly rotate the multiple way valve anti-clockwise (OPEN) until the spring is
completely slackened.
11. Check the oil level in the reservoir.
12. If the oil level is not correct, repeat steps 8–11.
13. Reinsert the exhaust port.
6.2 Adjusting the end positions
The end position is adjusted using the screw in the end flange of the hydraulic
cylinder.
Depending on the mounting position of the hydraulic device, the following chapter
describes the adjustment of the end position for either the “Valve open” position
or the “Valve closed” position.
– For information on the adjustment of the end position for the opposite valve
position èoperating instructions for DFPD-HD-...
Double-acting quarter turn actuator
1
2
3
4
5
6
7
Fig. 4
1. Put the hydraulic bypass valve 1in the open position (OPEN).
2. Pressurise the port (2) until the hydraulic piston 2(internal, not visible)
reaches the stop adjusting screw 7.
3. Switch off the compressed air supply.
4. Remove the cover of the stop bolt 5and sealing disc 6.
5. Loosen the stop nut 4together with the sealing disc 3.
6. To reduce the rotation angle, screw in the stop adjusting screw 7.
To increase the rotation angle, unscrew the stop adjusting screw 7.
7. Tighten the stop nut 4. Make sure that the sealing disc 3is centred on the
stop adjusting screw 7and lies in the recess of the end flange of the housing.
8. Switch on the compressed air supply.
9. To check the adjustment, run through a complete cycle.
10.Put the cover of the stop bolt 5and sealing disc 6into place again.
Single-acting quarter turn actuator
5
4
3
2
1
6
Fig. 5
1. Put the hydraulic bypass valve 1in the open position (OPEN).
2. To relieve the load from the stop adjusting screw 6, pressurise the port (2).
3. Remove the cover of the stop bolt 4and sealing disc 5.
4. Loosen the stop nut 3together with the sealing disc 2.
5. To reduce the rotation angle, screw in the stop adjusting screw 6.
To increase the rotation angle, unscrew the stop adjusting screw 6.
6. Tighten the stop nut 3. Make sure that the sealing disc 2is centred on the
stop adjusting screw 6and lies in the recess of the flange.
7. To check the adjustments, run through a complete cycle.
8. Put the cover of the stop bolt 4and sealing disc 5into place again.
7 Operation
 Comply with operating conditions.
 Observe the permitted limit values.
Double-acting quarter turn actuator
1. Put the hydraulic bypass valve in the closed position (CLOSE).
2. Select the operating direction of the quarter turn actuator — by actuating the
multiple way valve in the direction of the hydraulic cylinder side to be
pressurised.
3. To bring the quarter turn actuator into the selected position, actuate the pump
lever.
At the conclusion of manual operation:
4. Put the multiple way valve into the neutral position.
5. Put the hydraulic bypass valve in the open position (OPEN).
Single-acting quarter turn actuator
1. Put the hydraulic bypass valve in the open position (OPEN).
2. Close the multiple way valve (CLOSE).
3. To compress the spring and open the valve, actuate the pump lever.
4. To hold the valve position, put the hydraulic bypass valve in the closed position
(CLOSE).
At the conclusion of manual operation:
5. To slacken the spring and close the valve, put the hydraulic bypass valve in the
open position (OPEN) and rotate the multiple way valve anti-clockwise (OPEN).
8 Technical data
Hydraulic fluid
Type EXXON MOBIL NUTO H321)
Viscosity at 40°C 32
Viscosity at 100°C 5.4
Boiling point [°C] >316
Flash point [°C] 212
Floating decimal point [°C] –24
Density at 15°C [kg/dm3] 0.872
Operating temperature [°C] –20…150
1) Other media upon request
Fig. 6