BIFFI HLDA Use And Maintenance Manual

Doubled-thrust double acting hydraulic linear actuator

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23/05/18

30/03/17

05/05/99

Rev.

Date

HLDA – Double acting - Doubled thrust hydraulic linear actuator

Use and maintenance manual

DOUBLED-THRUST DOUBLE

ACTING HYDRAULIC

LINEAR ACTUATOR

Use and maintenance manual

Updated data-plate

Updated document

Document release

Description

Contents may change without notice

HLDA

MAN 668

Ermanni

Lazzarini

Prepared

Orefici

Vigliano

Orefici

Vigliano

Aliani

Ziveri

Checked

Approved

Pag. 1

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Page 1 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual HLDA DOUBLED-THRUST DOUBLE ACTING HYDRAULIC LINEAR ACTUATOR MAN 668 Use and maintenance manual Ermanni Orefici Vigliano 23/05/18 Updated data-plate Ermanni Orefici Vigliano 30/03/17 Updated document Lazzarini...
Page 2: Table Of Contents
3.1 OPERATION DESCRIPTION ............ 17 3.2 RESIDUAL RISKS ..............18 3.3 OPERATIONS ................18 ( refer to specific document: BIFFI operating diagram furnished ) ... 18 3.3.1 Emergency manual operation (MHP) ........18 3.3.2 Remote control operations : ..........18 3.4 CALIBRATION OF THE ANGULAR STROKE ......
Page 3 The information contained is of exclusive reserved ownership of BIFFI Italia S.r.l and may be modified without prior notice. All rights reserved. © Copyright by BIFFI Italia. All right reserved.
Page 4: General Warnings
2014/34/EU: Directive and safety instructions for use in hazardous area 1.1.2 Terms and conditions Biffi Italia srl guarantees that all the items produced are free of defects in workmanship and manufacturing materials and meet relevant current specifications, provided they are installed, used and serviced according to the instructions contained in the present manual.
Page 5: Identification Plate
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual liability shall lapse in the event that any modification or tampering whatsoever be performed on the actuator. IDENTIFICATION PLATE It is forbidden to modify the information and the marks without previous written authorization by BIFFI Italia S.r.l.
Page 6 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual When the double piston has completed the stroke, the remaining stroke is performed only by the piston © Copyright by BIFFI Italia. All right reserved. Pag. 6...
Page 7 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual The section ratio between the first part of the stroke and the remaining stroke is about two areas. This type of solution, reduce the oil displacement of the actuator, allowing lower volume of the accumulators for the emergency strokes.
Page 8: Data Sheet
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual DATA SHEET Supply fluid Mineral oil or synthetic fluids Design pressure 350 bar g Output thrust Double acting thrust up to 8000000 N Standard: from –30°C to +100°C Operating temperature Optional: from –60°...
Page 9: Actuator Handling
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual ACTUATOR HANDLING The lifting and handling should be made by qualified staff and in compliance with the laws and provisions in force. The fastening points are appropriate for the lifting of the actuator alone and not for the valve + actuator assembly.
Page 10: Storage
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual Picture 2 - Positioning by chains Positioning by slings 2 = don’t lay the actuator on tie-rods of 1 = point of support - cylinder 3 = don’t lay the actuator on accessories ( manual hand-pump, hydraulic control system etc.
Page 11: Actuator Assembly On The Valve
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual ACTUATOR ASSEMBLY ON THE VALVE 2.4.1 Types of assembly The adapter pedestal in fabricated carbon steel is specifically designed for adaptation to any type of valve with provision for local indicator, limit switches and other accessories (on request).
Page 12 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 1) Check that the coupling dimensions of the valve flange and stem, or of the relevant extension, meet the actuator coupling dimensions (valve stem and flange). Lubricate the valve stem with grease in order to make the assembly easier.
Page 13 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual B) To assemble the actuator onto the valve by bracket with shell joint, perform the following operations: 1) -Check that the coupling dimensions of the valve flange and stem, or of the relevant extension, meet the actuator coupling dimensions (valve stem and flange).
Page 14: Hydraulic Connections
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 7) -Screw the stud bolts (item 1) into the actuator pedestal flange, and screw the nuts on the stud bolts. 8) -Tighten according to the nut (item 2) size torque requirements.
Page 15: Electrical Connections (If Any)
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual For special applications the lower contamination degree is required. Please refer to the documentation supplied. Properly deburr the ends of rigid pipes ❑ Properly clean the interior of pipes sending through them plenty of ❑...
Page 16 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual repair the damages to paint coat. Check that the values of hydraulic supply available in the system are ❑ compatible with those reported on the identification plate of the actuator (Figure 2) and on the documentation supplied.
Page 17: Operation And Use
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 3 Operation and use OPERATION DESCRIPTION The supply fluid pressurizes the hydraulic-cylinder chamber relevant to the operation to carry out (opening or closing) (see following pages).
Page 18: Residual Risks
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 3.2 RESIDUAL RISKS The actuator has parts under pressure. Use the due caution. Use individual protections provided for by the laws and provisions in force. 3.3 OPERATIONS ( refer to specific document: BIFFI operating diagram furnished ) 3.3.1 Emergency manual operation (MHP)
Page 19 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual Example of operating diagram for Double acting hydraulic linear actuator with Remote control : © Copyright by BIFFI Italia. All right reserved. Pag. 19 Contents may change without notice...
Page 20 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual Example of operating diagram for Double acting hydraulic linear actuator with Power pack : © Copyright by BIFFI Italia. All right reserved. Pag. 20 Contents may change without notice...
Page 21: Calibration Of The Angular Stroke
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual CALIBRATION OF THE ANGULAR STROKE It is important that the mechanical stops of the actuator (and not those of the valve) stop the linear stroke at both extreme valve position (fully open and fully closed), except when this is required by the valve operation).
Page 22 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual HYDRAULIC WRENCH WRENCH WRENCH CYLINDER SIZE (mm) (mm) (mm) For high pressure cylinder models, the mechanical stop is internal (without protection cover) proceed at the same way : (1) remove the plug and (2) operate the adjusting screw Figure 6 –...
Page 23: Calibration Of Microswitches (Biffi Limit Switch Box Only)
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 3.5 CALIBRATION OF MICROSWITCHES (BIFFI LIMIT SWITCH BOX ONLY) Operate only the micro-switch corresponding to the direction of operation being carried out, as clearly reported on the micro-switch.
Page 24 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual If the index (Picture 9), does not signal the proper position of the valve but is turned by 90°: Remove the roll pin placed on the position indicator (index).
Page 25: Calibration Of The Operation Time
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual CALIBRATION OF THE OPERATION TIME For actuator models with control system it’s possible regulate the speed of actuator operations. The calibration of the operation time is made by Biffi Italia S.r.L according to customer requirements and to...
Page 26: Operational Tests And Inspections
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 4 Operational tests and inspections Important: To ensure the guaranteed SIL grade, according to IEC 61508, the functionality of actuator must be checked with regular intervals of time, as described in the Safety Manual ©...
Page 27: Maintenance
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 5 Maintenance Before carrying out any maintenance operation, it is necessary to close the hydraulic feed line and exhaust the pressure from the actuator cylinder and from the...
Page 28: Check And Restore Oil Level In The Hydraulic Manual Handpump ( Refer To Chapt. 7.2 Table 3 )
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual solvent and blow through with oil. If the filter is made of cellulose, it must be replaced when clogged. Picture 11 – Level measuring stick 5.1.1 Check and restore oil level in the hydraulic manual handpump ( refer to chapt.
Page 29 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual For refill use oil of the same brand as the one in the tanks. The cleanliness level for actuator without control-system is NAS 8 minimum. For actuator with control system the cleanliness level is that required by singles components, in any case Biffi Italia S.r.L respect the customer requirements to scope of...
Page 30: Extraordinary Maintenance
Anyway contact BIFFI ITALIA customer care. 5.2.1 Lubrication of mechanism For normal duty the HLDA actuator is lubricated "for life". In case of high load and high and high frequency of operation it may be necessary to periodically restore the lubrication: it is advisable to apply a generous coating of grease on the contact surfaces of moving parts.
Page 31 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual AGIP MU/EP/2 AEROSHELL GREASE equivalent To be used in standard temperature To be used in low temperature conditions (-30°C/+85°C) conditions (-60°C/+65°C) NLGI consistency: 2 Worked penetration: 280 dmm Colour: Buff ASTM Dropping Point: 185°C...
Page 32 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 3) Unscrew the stop screw (19) by turning it anticlockwise with an Allen wrench until the screw is complete with drawn inside the end flange threaded hole.
Page 33 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 3) Assemble the new O-ring into its groove and lubricate it with a protective oil or grease film. 4) Assemble the new seal ring (7) on its rubber O-ring by introducing...
Page 34 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual DOUBLE ACTING HYDRAULIC LINEAR ACTUATOR SECTIONAL DRAWING © Copyright by BIFFI Italia. All right reserved. Pag. 34 Contents may change without notice...
Page 35: Dismantling And Demolition
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 5.3 DISMANTLING AND DEMOLITION Before starting the disassembly a large area should be created around the actuator so to allow any kind of movement without problems of further risks created by work-site.
Page 36: Troubleshooting
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 6 Troubleshooting FAILURE OR BREAKDOWN RESEARCH Event Possible cause Remedy Actuator does not work Lack of hydraulic Open line stop valve supply Blocked valve Repair or replace...
Page 37: Layouts
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 7 Layouts SPARE PARTS ORDER For spare parts order to the relevant BIFFI office please make reference to BIFFI order confirmation concerning all the supply, and serial number of the actuator (Sect.
Page 38: Parts-List For Maintenance And Replacing Procedure
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 7.2 PARTS-LIST FOR MAINTENANCE AND REPLACING PROCEDURE Table 1: Pedestal with coupling joint © Copyright by BIFFI Italia. All right reserved. Pag. 38 Contents may change without notice...
Page 39 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual Table 2: hydraulic cylinder © Copyright by BIFFI Italia. All right reserved. Pag. 39 Contents may change without notice...
Page 41 HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual Table 3: Hydraulic control unit MHP © Copyright by BIFFI Italia. All right reserved. Pag. 41 Contents may change without notice...
Page 44: Date Report For Maintenance Operations
HLDA – Double acting - Doubled thrust hydraulic linear actuator Use and maintenance manual 8 Date report for maintenance operations Last maintenance operation date : ( in factory, on delivery ): ….. ……… exec. by : ………… ……… exec. by : …………...

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