The document provides a procedure for revising a Rotork servomotor. It involves dismantling and inspecting mechanical parts like bearings and seals. Electrical and electronic parts like cards and wires are also identified and checked. The procedure then explains how to dismantle and reassemble each major component or subassembly of the servomotor, including the center column, base, electric motor, terminal block, and electronic equipment cover.
Circulating Water Pump Overhauling Report (Capacity- 29,000 m3/hr)Shah Jalal
The pump suction is from river water to discharge to water boxes of steam condenser. It’s a vertical shaft, 2,100 discharge bore mixed flow pump. It’s driven by an 1650 KW vertically mounted motor with a rated full load rpm of 372. Rated flow rate of the pump is 29,000 m3/hr
Circulating Water Pump Overhauling Report (Capacity- 29,000 m3/hr)Shah Jalal
The pump suction is from river water to discharge to water boxes of steam condenser. It’s a vertical shaft, 2,100 discharge bore mixed flow pump. It’s driven by an 1650 KW vertically mounted motor with a rated full load rpm of 372. Rated flow rate of the pump is 29,000 m3/hr
Toyota 7FBCU25 Forklift Service Repair Manualhkksejkdmm
This is the Highly Detailed factory service repair manual for theTOYOTA 7FBCU25 FORKLIFT, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.TOYOTA 7FBCU25 FORKLIFT Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General
Battery
Control
Multi-Display Functions
Troubleshooting
Motor
Drive Unit
Front Axle
Rear Axle
Steering
Brake
Body
Material Handling System
Mast
Cylinder
Oil Pump
Oil Control Valve
SAS Functions
Appendix
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveTOYOTA 7FBCU25 FORKLIFT Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Toyota 02-6FG15 Forklift Service Repair Manualjksmemfmd
This is the Highly Detailed factory service repair manual for theTOYOTA 02-6FG15 FORKLIFT , this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.TOYOTA 02-6FG15 FORKLIFT Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
Foreword
Section Index
General
Clutch
Torque Converter
Transmission
Propeller Shaft
Differential
Front Axle
Rear Axle
Steering
Brake
Body
Material Handing System
Mast
Cylinder
Oil Pump
Oil Control Valve
Appendix
Wire Diagrams
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveTOYOTA 02-6FG15 FORKLIFT Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Assembly and Disassembly Procedure of Screw type Compressor Shah Jalal
The Procedure will be very much helpful for complete overhauling of Screw type Compressor .The Maintenance Procedure is for Fuel Gas Compressor(KOBELCO) of 450 MW Meghnaghat Power Plant.
1997 YAMAHA VENTURE VT480 SNOWMOBILE Service Repair Manualjkksemd yeuyhd
This is the Highly Detailed factory service repair manual for the1997 YAMAHA VENTURE VT480 SNOWMOBILE, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.1997 YAMAHA VENTURE VT480 SNOWMOBILE Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General Information
Periodic Inspection and Adjustment
Chassis
Power Train
Engine Overhaul
Carburetion
Electrical
Appendices
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to have1997 YAMAHA VENTURE VT480 SNOWMOBILE Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
catalogo 390 d
Alto nivel de producción sostenida, mejorado.
Incremento de rendimiento, fiabilidad y durabilidad.
Su productividad y disminuir sus costos operativos.
This is the Highly Detailed factory service repair manual for the2007 NISSAN PATHFINDER, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.2007 NISSAN PATHFINDER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
* General Information
* Engine Mechanical
* Engine Lubrication System
* Engine Cooling System
* Engine Control System
* Fuel System
* Exhaust System
* Accelerator Control System
* Automatic Transmission
* Transfer
* Propeller Shaft
* Front Final Drive
* Rear Final Drive
* Front Axle
* Rear Axle
* Front Suspension
* Rear Suspension
* Road Wheels & Tires
* Brake System
* Parking Brake System
* Brake Control System
* Power Steering System
* Seat Belts
* Supplemental Restraint System (SRS)
* Body, Lock & Security System
* Glasses, Window System & Mirrors
* Roof
* Exterior & Interior
* Instrument Panel
* Seat
* Adjustable Pedal
* Automatic Air Conditioner
* Manual Air Conditioner
* Starting & Charging System
* Lighting System
* Driver Information System
* Wiper, Washer & Horn
* Body Control System
* LAN System
* Audio Visual, Navigation & Telephone System
* Auto Cruise Control System
* Power Supply, Ground & Circuit Elements
* Maintenance
* Alphabetical Index
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to have2007 NISSAN PATHFINDER Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
1994 Yamaha Viking VK 540 Series Snowmobile Service Repair Manualjkksemd yeuyhd
This is the Highly Detailed factory service repair manual for the1994 YAMAHA VIKING VK 540 SERIES SNOWMOBILE, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.1994 YAMAHA VIKING VK 540 SERIES SNOWMOBILE Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General Information
Periodic Inspection and Adjustments
Engine Overhaul
Carburetion
Power Train
Chassis
Electrical
Appendices
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to have1994 YAMAHA VIKING VK 540 SERIES SNOWMOBILE Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Kubota D722-E4B Diesel Engine Service Repair Manualfusjejjsekkdmm
This is the Highly Detailed factory service repair manual for theKUBOTA D722-E4B DIESEL ENGINE, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KUBOTA D722-E4B DIESEL ENGINE Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
Information
Engine Identification
General Precaution
Maintenance Check List
Check and Maintenance
Special Tool
Engine Body
Cooling System
Troubleshooting
Servicing Specifications
Tightening Torques
Checking, Disassembling and Servicing
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKUBOTA D722-E4B DIESEL ENGINE Service Repair Workshop Manual.
Thanks for visiting!
Selecting the Right Gear Coupling for your ApplicationDesign World
This webinar will place the spotlight on gear couplings with a focus on factors to consider when making a coupling selection for your application. Topics covered will include basic sizing, application criteria, coupling design features and the variety of coupling types available.
Toyota 7FBCU25 Forklift Service Repair Manualhkksejkdmm
This is the Highly Detailed factory service repair manual for theTOYOTA 7FBCU25 FORKLIFT, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.TOYOTA 7FBCU25 FORKLIFT Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General
Battery
Control
Multi-Display Functions
Troubleshooting
Motor
Drive Unit
Front Axle
Rear Axle
Steering
Brake
Body
Material Handling System
Mast
Cylinder
Oil Pump
Oil Control Valve
SAS Functions
Appendix
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveTOYOTA 7FBCU25 FORKLIFT Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Toyota 02-6FG15 Forklift Service Repair Manualjksmemfmd
This is the Highly Detailed factory service repair manual for theTOYOTA 02-6FG15 FORKLIFT , this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.TOYOTA 02-6FG15 FORKLIFT Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
Foreword
Section Index
General
Clutch
Torque Converter
Transmission
Propeller Shaft
Differential
Front Axle
Rear Axle
Steering
Brake
Body
Material Handing System
Mast
Cylinder
Oil Pump
Oil Control Valve
Appendix
Wire Diagrams
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveTOYOTA 02-6FG15 FORKLIFT Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Assembly and Disassembly Procedure of Screw type Compressor Shah Jalal
The Procedure will be very much helpful for complete overhauling of Screw type Compressor .The Maintenance Procedure is for Fuel Gas Compressor(KOBELCO) of 450 MW Meghnaghat Power Plant.
1997 YAMAHA VENTURE VT480 SNOWMOBILE Service Repair Manualjkksemd yeuyhd
This is the Highly Detailed factory service repair manual for the1997 YAMAHA VENTURE VT480 SNOWMOBILE, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.1997 YAMAHA VENTURE VT480 SNOWMOBILE Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General Information
Periodic Inspection and Adjustment
Chassis
Power Train
Engine Overhaul
Carburetion
Electrical
Appendices
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to have1997 YAMAHA VENTURE VT480 SNOWMOBILE Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
catalogo 390 d
Alto nivel de producción sostenida, mejorado.
Incremento de rendimiento, fiabilidad y durabilidad.
Su productividad y disminuir sus costos operativos.
This is the Highly Detailed factory service repair manual for the2007 NISSAN PATHFINDER, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.2007 NISSAN PATHFINDER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
* General Information
* Engine Mechanical
* Engine Lubrication System
* Engine Cooling System
* Engine Control System
* Fuel System
* Exhaust System
* Accelerator Control System
* Automatic Transmission
* Transfer
* Propeller Shaft
* Front Final Drive
* Rear Final Drive
* Front Axle
* Rear Axle
* Front Suspension
* Rear Suspension
* Road Wheels & Tires
* Brake System
* Parking Brake System
* Brake Control System
* Power Steering System
* Seat Belts
* Supplemental Restraint System (SRS)
* Body, Lock & Security System
* Glasses, Window System & Mirrors
* Roof
* Exterior & Interior
* Instrument Panel
* Seat
* Adjustable Pedal
* Automatic Air Conditioner
* Manual Air Conditioner
* Starting & Charging System
* Lighting System
* Driver Information System
* Wiper, Washer & Horn
* Body Control System
* LAN System
* Audio Visual, Navigation & Telephone System
* Auto Cruise Control System
* Power Supply, Ground & Circuit Elements
* Maintenance
* Alphabetical Index
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to have2007 NISSAN PATHFINDER Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
1994 Yamaha Viking VK 540 Series Snowmobile Service Repair Manualjkksemd yeuyhd
This is the Highly Detailed factory service repair manual for the1994 YAMAHA VIKING VK 540 SERIES SNOWMOBILE, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.1994 YAMAHA VIKING VK 540 SERIES SNOWMOBILE Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General Information
Periodic Inspection and Adjustments
Engine Overhaul
Carburetion
Power Train
Chassis
Electrical
Appendices
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to have1994 YAMAHA VIKING VK 540 SERIES SNOWMOBILE Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Kubota D722-E4B Diesel Engine Service Repair Manualfusjejjsekkdmm
This is the Highly Detailed factory service repair manual for theKUBOTA D722-E4B DIESEL ENGINE, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KUBOTA D722-E4B DIESEL ENGINE Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
Information
Engine Identification
General Precaution
Maintenance Check List
Check and Maintenance
Special Tool
Engine Body
Cooling System
Troubleshooting
Servicing Specifications
Tightening Torques
Checking, Disassembling and Servicing
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKUBOTA D722-E4B DIESEL ENGINE Service Repair Workshop Manual.
Thanks for visiting!
Selecting the Right Gear Coupling for your ApplicationDesign World
This webinar will place the spotlight on gear couplings with a focus on factors to consider when making a coupling selection for your application. Topics covered will include basic sizing, application criteria, coupling design features and the variety of coupling types available.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Water Industry Process Automation and Control Monthly - May 2024.pdf
Procedure for the general rewiew of the rotork servomotor
1. PROCEDURE FOR THE
GENERAL REVISION
OF THE
ROTORK
SERVOMOTOR
GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
2. PURPOSE OF THE WORK
• The purpose of this work is to show the
operating mode of a revision of a ROTORK
servomotor
• Improve technical knowledge for the control
of ROTORK servomotors
• Establish a procedure of intervention on the
mechanical, electrical and control equipement
GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
3. PRESENTATION
• The review took as an example the model (IQ90
A30A) CENTER COLUMN AND BASE
• The work involves the dismantling of all
mechanical parts for inspection and change
wear parts (bearing, seal) , check electrical and
electronic parts
• identification of card and connection
• Make the test of handling under electrical
tension.
GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
4. DEFINITION
• A servomotor is a motorized system capable
of reaching predetermined the valve positions
and then maintaining them.
• The position is in the case of a rotary motor an
angle value and in the case of a linear motor a
distance.
• Electric motors as well as hydraulic motors are
used.
GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
5. OPERATION OF THE
SERVOMOTEUR
*After receiving an operating command, the servomotor
drives the valve towards OPEN or CLOSED.
*Two types of fundamentally different stops are possible:
The first one: called end stop, is only dependent on the
position. The control switches off the servomotor from the
cutoff point reached.
The second one: requires the shutter to operate at a
defined force or torque to seal the valve on its seat. This
break is called stop on torque limiter. The control is
programmed to shut off the servomotor when the torque
threshold has been exceeded. Limit sensor have to signal
the position of the valve. GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
6. OPERATION MODE
• A set value and a real value are indicated on the main board. The motor is
driven until the actual value is equal to the setpoint. Generally, the control
system requires a copy of position
Position to
reach
Exit
position
Current position
This is 0% or 100%
or an intermediate
position
This is 0% or 100%
or an intermediate
position
Main card
GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
7. WORKPLAN
• The work consists of a mechanical + electrical
revision
• Identification of mechanical components
• identification of electrical components
• Identification of electronic components
Technical documentation
GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
8. THE ROTORK SERVOMOTOR
ASSEMBLY CENTER COLUMN AND
BASE IQ 90
• 1: housing Subset
• 2: steering wheel Subassembly
• 3: electric motor Subassembly
• 4: terminal block Subassembly
• 5: Electronic Equipment Cover Subset
• 6: Electronic equipment
GHARBI BESSEM MAINTENANCE PLANNER& INSTRUMENTATION
COORDINATORMAINTENANCE
9. GENERAL PLAN
Sous ensemble carter
• Photo of the general plan
Under flying assembly
Under cover cover of electrical
equipment + e-cards
Electric motor Subassembly bulkhead
terminal
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10. REVISION UNDER SET # 1 CARTER
• DIFFERENT STEPS
• Servomotor oil change
• State and oil quality inspection
• Disassembly of the spring + seal
• Disassembly of the clutch fork
• Disassembly of the clutch ring
• Disassembly of the drive sleeve and the stop
• Disassembling the tangent wheel
• Disassembling the drive shaft of the magnetic counter
• Disassembly of the central axis and base Central bearings change
• Changes to all seals + Para oils
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11. SERVO OIL DRAIN
• position the actuator on its base then open
the drain plug to empty the oil sump.
Oil drain plug
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12. • A general inspection shows that the oil is not of good
quality There is no wear or damage part
INSPECTION OF GENERAL STATUS AND OIL
QUALITY
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13. DISASSEMBLING THE SPRING + JOINT
HOLD
• locate the center column retainer o-ring press
the steel washer located below and roll the o-
ring up
O-ring
steel washer
Clutch spring
note:
take great care when releasing
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15. DISASSEMBLING THE CLUTCH FORK
• Lock the spring clamp to a horizontal position
and lift the fork at the same time by loosening
these 4 screws
NB:
Do not loosen the
adjusting screw
étrier
Fourchette
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16. DISASSEMBLING THE CLUTCH RING
• remove the ring up.
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17. DISASSEMBLING THE DRIVE SLEEVE
AND STOP
• Disassemble the bottom part of the base first
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18. • Unscrew first the sleeve, the stop ring of the
stop and then remove it
muff
Stop ring
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20. FIXING THE VALVE
The connection to the valve is made by two
elements. The first element called the servomotor
base that is securely screwed to the mounting
flange of the valve. (The size of this flange
increases with the value of the torque to be
transmitted).
The second element is the coupling, used to
transmit the torque or thrust of the servomotor to
the valve shaft. (Due to the large number of types
of valve construction, there are also a multitude
of types of couplings).
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21. DISASSEMBLING THE TOOTHED
WHEEL
• Using a mallet tap on the central axis until
disassembly of the gear.
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22. Reducer (HEXED WHEEL) The gear units used
are regularly wheel and worm gear units. The
reduction is often important. The operating
speeds of the valves are relatively low.
This type of transmission has irreversibility
characteristic makes it particularly suitable for
servomotors.
This type of gearbox makes it possible to
maintain the torque without powering the
motor, and, on the multi-turn servomotors, to
support the load due to the weight of the deck
or the potential of a pressure.
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23. PREPARATION FOR DISASSEMBLING
THE CENTER AXIS
Tangent wheel
Central axis
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24. •After disassembly of the central axis it is necessary to
change the central bearings
bearings
CHANGE OF CENTRAL BEARINGS
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25. DISASSEMBLING THE MAGNETIC
COUNTER TRAINING AXIS
• Using a small screwdriver, remove the spring clip
holding the magnet to the axis then remove the axis
of the magnetic counter + disassembly of the
electronic card.
magnet
spring
clip
Axis of the magnetic
counter
Training gear
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26. SENSORY RACE AND COUPLE
TECHNOLOGY
The limit switches are used to measure the
distance traveled and to signal when the end
position is reached. A torque limiter records
the force on the valve. Exceeding a limit value
is also reported. Servomotors frequently have
an absolute position encoder (digital or
analog).
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27. • Torque measurement is not only used to signal
stopping at the end position. It is also used to
detect an anomaly during the maneuver, such
as that due to the presence of an object
trapped for example. This limitation makes it
possible to avoid a mechanical breakage. The
control is able to distinguish the normal stop
from the exceptional stop in intermediate
position by the state of the limit switch
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28. EXPLODED VIEW OF PARTS REMOVED
FROM SUBASSEMBLY N ° 1
butée
Axe central
Clutch fork
the drive shaft of the
magnetic counter
Stop ring
Roue dentée
Bottom part of the base
Worm gear + rotor
Subset N ° 2:
steering wheelCover of the
electronic part
Clutch ring
Spring +
washer
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29. REVISION UNDER SET ° 2 WHEEL
• DIFFERENT STEPS
• Dismantling the steering wheel assembly,
gearbox and crankcase motion transmitter
• Separate the 3 subsets: steering wheel, gearbox
and motion transmitter
• Dismantling the parts of each subassembly
• Changing the seal + the ring oil
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30. Disassembly of the steering wheel,
gearbox and motion transmitter
assembly
• use the 6 fixing screws with a 6mm Allen key
to separate the housing assembly, the
assembly should be lifted straight up.
reducer
volant
Mvt Transmitter
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31. MANUAL CONTROL (FLYWHEEL)
Most electric actuators are equipped with a
handwheel for manual operation during
commissioning or during a power failure, for
example. The steering wheel does not turn
during engine operation thanks to the clutch
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32. Separate the 3 subassemblies:
reducer flywheel and mvt transmitter
• Unscrew the 7 fixing screws with a 4mm Allen
key to disengage the 2 - part gearbox.
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33. Exploded view of Parts removed from
subassembly N ° 2
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34. ENGINE all types of electric motors are used. DC or AC motor, single phase or
three phase. However, preference is given to AC three-phase asynchronous
motors as well as the single-phase AC motor. Their robustness and their high
starting torque are two qualities appreciated in this area, especially when it is
necessary to release a valve locked in its seat.
Electric servomotors are used in extreme ambient conditions. Fan motors do
not fulfill the protection type requirements and are not used much. In fact,
the engines require a cooling phase after service. Servomotors are not
designed for continuous operation. This corresponds perfectly to the
application because the valves are not always maneuvered.
REVISION UNDER SET ° 3 ELECTRIC
MOTOR
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35. REVISION UNDER SET ° 3 ELECTRIC
MOTOR
✓Disassembly of the stator
✓Disassembly of the rotor
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36. Disassembly of the stato
• Disassemble the stator of the electric motor
by loosening the 4 fixing bolts with a 6mm
Allen key
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37. Disassembly of the rotor
• Disassemble the rotor of the electric motor by
loosening the 4 fixing bolts and pulling it outwards
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38. • Change of the following parts on the rotor
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40. REVISION UNDER SET ° 4 CLOISON
TERMINAL
• DIFFERENT STEPS Disassembly of the cover of
the electronic part and the cover of the
terminal block Wire Identification and
Disassembly of the Bounded Partition Make
sure the connections are good
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41. Role of the Electrical Connection The motor
supply cables and the signal cables are
connected to the electrical terminal block of the
servomotor to transmit control commands to it,
and to retransmit the position of the
servomotor to the control system. Ideally the
electrical connection must be made by a single
connector to prevent any decoupling during
maintenance.
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42. Wire Identification and Disassembly
of the Terminal Block
• Remove the fixing circlip from the partition
and pull it out slightly. Cut the cable ties to
make it easier to locate and count the wires.
Disassemble the terminal block
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43. UNDER SET 5: COVER OF ELECTRONIC
EQUIPMENT
• Disassembly of the protective cover Checking
the status of the communication card Battery
change
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44. Disassembly of the cover of the
electronic part and the cover of the
terminal block
• Remove the cover of the electronic equipment
after having unscrewed the 4 fastening screws
using a 6mm Allen key and then that of the
partition.
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46. OVERVIEW 6: ELECTRONIC
EQUIPMENT
Carte puissance
Main card
Carte
control
local
al
Carte
sensor
batterie
Carte relais
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47. SERVOMOTOR CONTROL role of the main board
• The servomotor control ensures, on the one
hand, the servomotor signal processing and, on
the other hand, the processing of the operating
commands of the control system. This task can be
performed by an external command, for example,
a DCS. Modern servomotors are equipped with a
built-in control for on-site signal processing
without delay. The electrical control of the
motors can be realized by contactors or by static
electronic components
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55. REASSEMBLY
The reassembly is done in reverse order of the mechanical
disassembly Added 5 liter of oil {SHELL SPIRAX gear oil 80w90)
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