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February 2022

Installation, Operation and Maintenance Manual

MAN 607 Rev. 6

Section 6: Troubleshooting

Troubleshooting

Section 6: Troubleshooting

6.1

Failure or Breakdown Research

Event

Possible cause

Remedy

Actuator does n

ot wor

Lack of power supply

Restore it

Lack of hydraulic supply

Open line interception valve

Blocked valve

Repair or replace

Wrong position of the distributor of the
manual hydraulic group

Restore correct position

Failure of the control group

Call Biffi Italia s.r.l.
Customer Service

Unexpected intervention of
torque limit-device

Low supply pressure

Call Biffi Italia s.r.l.
Customer Service

Restore (Section 1.4)

Actuator too slow

Low supply pressure

Wrong calibration of flow re

gulator valves

Bad functioning of quick exhaust valve

Restore (Section 1.4)

Restore (Section 3.6)

Call Biffi Italia s.r.l.
Customer Service

Wear of the valve

Replace

Actuator too fast

High supply pressure

Restore (Section 1.4)

Wrong calibration of flow regulator valves Restore (Section 3.6)

Leakages on hydraulic or

pneumatic circuits

Deterioration and/or damage to gaskets

Call Biffi Italia s.r.l.
Customer Service

Incorrect position o

the valve

Wrong adjustment of mechanical stops

Restore (Section 3.4)

Wrong warning of microswitches

Restore (Section 3.5)

Hydraulic manual pump
does not work

Handle positioned on remote control

Position the handle on the
indication of the operation

to make

Leakages on the check valve of the
hydraulic control group

Call Biffi Italia s.r.l.
Customer Service

Table 14.

Содержание OLGA-H

Страница 1: ...Hydraulic Actuator Copyright Biffi The information in this document is subject to change without notice Updated data sheets can be obtained from our website www biffi it or from your nearest Biffi Cen...

Страница 2: ...ral update Migration to new template 5 April 2018 Updated data plate Ermanni Orefici Vigliano 4 April 2016 Updated applicable regulation chapter 1 1 1 Ermanni Orefici Vigliano 3 February 2013 Updated...

Страница 3: ...tor Assembly on the Valve 8 2 4 1 Types of Assembly 8 2 4 2 Assembly Procedure 10 2 5 Hydraulic Connections 11 2 6 Electrical Connections If Any 12 2 7 Commissioning 13 Section 3 Operation and Use 3 1...

Страница 4: ...Pressure Cylinder Seals 32 5 2 2 Replacement of Seals for Actuators with Biffi Manual Handpump 36 5 3 Lubrication of Mechanism 40 5 4 Dismantling and Demolition 41 Section 6 Troubleshooting 6 1 Failu...

Страница 5: ...or damage or accidents due to the use of the latter The information contained is of exclusive reserved ownership of Biffi Italia s r l and may be modified without prior notice All rights reserved 1 1...

Страница 6: ...ment which is necessary for operation The angular stroke of the yoke is adjustable between 82 and 98 by means of the external mechanical stops screwed into the left wall of the mechanism housing and i...

Страница 7: ...A H MHP models or second models or second pneumatic cylinder for pneumatic cylinder for double cylinders models double cylinders models Hydraulic Hydraulic cylinder cylinder Scotch yoke Scotch yoke me...

Страница 8: ...ready assembled with the valve its settings have already been made If the actuator is delivered separately from the valve it is necessary to check and if required to adjust the settings of the mechani...

Страница 9: ...Figure 4 Lifting points for OLGA H OLGA H MHP OLGA H MSJ 1 2 lifting points obligatory 3 balancing point Figure 5 1 point of support 2 supports for lateral positioning WARNING 3 don t lay the actuator...

Страница 10: ...quipment used and discard it if not in perfect working order Do not knot or twist the ropes so as not to reduce the lifting capacity or produce torsional effects on the load being lifted Use the utmos...

Страница 11: ...ing label for transport in horizontal position is attached on the MHP body remove the blind plug and restore the dipstick before operating the actuator with MHP Biffi hydraulic manual handpump must be...

Страница 12: ...th keyways for coupling to the valve stem the dimensions of which are according to Biffi standard tables SCN6200 and SCN6201 If required for the standard models size 0 3 to 6 Biffi can supply an inser...

Страница 13: ...ound axis A A from position 1 Insert bush turned upside down Table 1 The Biffi insert bush with 2 external keys at 45 allows to position the keyway for the valve every 90 Consequently actuator can be...

Страница 14: ...nsistency of the parts of actuator valve coupling Operate the actuator so that it reaches the position matching valve position Section 3 3 Lubricate valve stem with oil or grease Properly clean and re...

Страница 15: ...llowable value The shape of the connecting piping must not cause excessive stress to the inlets of the actuator The piping must be suitably fastened so as not to cause excessive stress or loosening of...

Страница 16: ...il 19 April 2016 2014 35 EU from 20 April 2016 2004 108 EC Directive for the electromagnetic compatibility until19 April 2016 2014 30 EU from 20 April 2016 94 9 CE Directive and safety instructions fo...

Страница 17: ...in the system are compatible with those reported on the identification plate of the actuator Figure 1 and on the documentation supplied Check that the feed voltage values of the electric components so...

Страница 18: ...ssurized oil and at the same time the oil is discharged from the open chamber into the return line the actuator performs the closing operation driven by the piston movement and the valve moves from th...

Страница 19: ...specific document operating diagram furnished For local or remote operations please refer to Section 3 3 1 3 3 2 3 3 3 and prior to technical documentation furnished with actuators Typical schematics...

Страница 20: ...local operation The compact hydraulic control unit mounted on the actuator consist of handpump directional control valve to select to open or to close actuator operation relief valve to prevent the oi...

Страница 21: ...tor to choose actuator Normal operation with oil supply from a power pack or the Emergency manual operation The compact hydraulic override consists of handpump directional control valve to select the...

Страница 22: ...g Figure 17 Figure 16 The MSJ jackscrew manual override can be supplied for OLGA actuators from model 0 3 to model 3 The override is mounted on the left side of the actuator the jackscrew end is screw...

Страница 23: ...nder end flange Insert a wrench for Allen keys c1 through the hole until reaching the adjustment pin Turn counterclockwise to increase the angular stroke turn clockwise to decrease it When the adjustm...

Страница 24: ...w these steps Figures 19 and 20 Loosen the locknut d with the specific wrench c2 Adjust the pin g screw v with the adequate wrench c1 Turn counterclockwise to increase the angular stroke turn clockwis...

Страница 25: ...se Operation and Use For the adjustment of the mechanical stop screwed on the end flange of manual override see Section 7 2 Figure 38 sectional drawing for manual jackscrew MSJ Actuator Model Wrench C...

Страница 26: ...Use Operation and Use Figure 21 Mechanical stop on the end flange of manual override Actuator Size Wrench C1 mm Wrench C2 mm 0 1 34 34 0 3 34 34 0 9 34 34 Table 7 Figure 22 Mechanical stop on the end...

Страница 27: ...ease refer to the relative wiring diagram and follow these steps Unscrew the fastening screws of the cover Figure 23 Remove the cover paying attention not to deteriorate the gasket and the cylindrical...

Страница 28: ...but is turned by 90 Remove the roll pin placed on the position indicator index Turn the indicator until reaching its proper positioning Put the roll pin back in its position NOTICE End of stroke micro...

Страница 29: ...r valve Technical Features Max adjusted flow 1 min 10 Max working pressure bar 250 Fluid viscosity range cSt 5 750 Fluid temperature range C 45 60 Mass Kg 0 70 Hydraulic fluid mineral oils Recommended...

Страница 30: ...ody see Section 7 2 Figure 36 sectional drawing for hydraulic control unit MHP To carry out the adjustment use an adequate Allen wrench and follow these steps Figure 27 Remove the cap nut Loosen the l...

Страница 31: ...Operational Tests and Inspections Operational Tests and Inspections Section 4 Operational Tests and Inspections NOTICE To ensure the guaranteed SIL grade according to IEC 61508 the functionality of ac...

Страница 32: ...repair works should be carried out by qualified staff 5 1 Periodic Maintenance OLGA H actuators are designed to operate long term in heavy duty operating conditions without maintenance needs WARNING...

Страница 33: ...1 Check that the actuators did not undergo accidental damage with oil leakages found on site Check that improper closing of control group cover if present did not produce the presence of condensation...

Страница 34: ...oil If some dirt or and sludge is found in the oil drained from the tank before filling with new oil in the tank disassemble the oil tank tube by unscrewing the two cap nuts 2 and clean the internal...

Страница 35: ...nufactured SHELL Name AEROSHELL FLUID 41 Viscosity at 54 C 2300 cST Viscosity at 40 C 491 cST Viscosity at 40 C 14 1 cST Viscosity at 100 C 5 30 cST Viscosity index ISO 2909 200 Flash point 105 C Pour...

Страница 36: ...stance of the stop screw 23 with reference to the end flange 26 surface so as to be able to easily restore the setting of the actuator mechanical stop once the maintenance procedures have been complet...

Страница 37: ...new O ring into its groove and lubricate it with a protective oil film 4 Assemble the new Teflon seal ring 44 into the flange groove inside its rubber O ring by bending it take care that the bending r...

Страница 38: ...ston taking care not to damaged the Teflon seal ring 46 the tube bevel has to smoothly compress the seal ring take care also not to damage the head flange O ring 43 5 Assemble the end flange by centri...

Страница 39: ...9 Guide bar 10 Cover gasket 11 Yoke 12 Plug 13 Bushing 14 Guide block 15 Washer 16 Piston rod bushing 17 Screw 18 Piston rod 19 Tie rod 20 Piston 21 Stop setting screw 22 Cylinder tube 23 Friction ba...

Страница 40: ...t be replaced with reference to the sectional drawing and adopting the following procedures 1 Remove the nuts item 16 and the washers item 15 from the tie rods item 10 at the end flange item 13 side 2...

Страница 41: ...the seal Then enlarge the seal ring with your fingers so as to restore its round shape pay attention not to utilize any tools which can damage the seal ring To replace the piston dual seal ring 9 proc...

Страница 42: ...damaged Lubricate the tube inside surface and the bevels at the ends with protective oil or a grease film Slide the tube onto the piston taking care not to damage the dual seal ring item 9 the tube be...

Страница 43: ...Alloy steel 7 1 Piston Nickel plated carbon steel 8 2 Guide sliding ring for piston Teflon graphite 9 1 Piston seal ring Teflon NBR rubber 10 4 Tie rod Alloy steel ASTM A320 gr L7 11 1 Stop setting s...

Страница 44: ...y a generous coating of grease on the contact surfaces of the yoke and bushings on the yoke link grooves on the sliding blocks on the guide bar For this operation it is necessary to disassemble the me...

Страница 45: ...r from the control unit and from the accumulator tank if present If the actuator is still mounted onto the valve loosen the threaded connections between valve and actuator screws tie rods nuts Lift th...

Страница 46: ...o slow Low supply pressure Wrong calibration of flow regulator valves Bad functioning of quick exhaust valve Restore Section 1 4 Restore Section 3 6 Call Biffi Italia s r l Customer Service Wear of th...

Страница 47: ...ffi order confirmation concerning all the supply and serial number of the actuator Section 1 2 for any specific spare part for a specific actuator model Please send every spare parts request to BIffi...

Страница 48: ...Carbon steel 5 1 Guide bar Alloy steel 6 1 Yoke Carbon steel 7 1 Cover gasket Fiber 8 1 Guide block Carbon steel 9 1 Bushing Steel Bz Teflon 10 2 Sliding block Bronze 11 1 Vent valve Stainless steel...

Страница 49: ...Back up ring NBR Rubber 6 1 Piston rod Chromium plated alloy steel 7 1 Piston Carbon steel 8 2 Guide sliding ring for piston Teflon graphite 9 1 Piston seal ring Teflon graphite NBR rubber 10 4 Tie ro...

Страница 50: ...flon graphite 5 1 O ring NBR Rubber 6 1 Piston rod Alloy steel 7 1 Piston Nickel plated carbon steel 8 2 Guide sliding ring for piston Teflon graphite 9 1 Piston seal ring Teflon NBR rubber 10 4 Tie r...

Страница 51: ...crew Alloy steel 2 1 Nut Carbon steel 3 1 Nut Carbon steel 4 4 Screw Alloy steel 5 2 Flange Carbon steel 6 2 Gasket Fiber 7 1 Stopper bush Alloy steel 8 1 Plug Alloy steel 9 1 Adaptor bush Alloy steel...

Страница 52: ...48 February 2022 Installation Operation and Maintenance Manual MAN 607 Rev 6 Layouts Section 7 Layouts Figure 36 Hydraulic control unit MHP...

Страница 53: ...body Aluminum 27 2 Plug Carbon steel 28 2 Flow control valve setting screw Stainless steel 29 2 Spring pin Stainless steel 30 2 Nut Carbon steel 31 2 Flange Carbon steel 32 2 O ring Fluorosilicon rubb...

Страница 54: ...g Carbon steel 7 1 Fork Carbon steel 8 2 Pin Stainless steel 9 4 Retainer ring Carbon steel 10 1 Rod Alloy steel 11 1 Body Carbon steel 12 1 Lever Carbon steel 13 1 Split pin with rope Nylon Carbon st...

Страница 55: ...9 1 Fork Carbon steel 10 3 Spring pin Stainless steel 11 3 Screw Carbon steel 12 1 Screw nut operating cam Alloy steel 13 1 O ring Fluorosilicon rubber 14 1 Thrust block ring nut Alloy steel 15 1 Scre...

Страница 56: ...t for Maintenance Operations Date Report for Maintenance Operations Section 8 Date Report for Maintenance Operations Last maintenance operation date in factory on delivery exec by exec by exec by Next...

Страница 57: ...Notes Installation Operation and Maintenance Manual MAN 607 Rev 6 February 2022 This page is intentionally left blank...

Страница 58: ...he products or services described herein or their use or applicability All sales are governed by our terms and conditions which are available on request We reserve the right to modify or improve the d...

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