installation maintenance and repair of vertical pumps
operation maintenance and repair of auxiliary generators docx
Ngày tải lên :
05/03/2014, 18:20
... filters Proper installation and maintenance of oil filters and mechanical operation of the engine are equally important for treatment of oil Prevention of contamination and removal of contaminants ... absorption of oils and solvents, and to promote cleanliness and ease of cleanup Plates and gratings covering floor trenches must be grounded Rubber matting should be installed in front of and around ... fireproof and constructed of poured concrete or concrete and cinder blocks with a roof of reinforced concrete, steel, or wood supports with slate or other fireproof shingles Ventilation and openings...
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Operation, Maintenance and Repair of Auxiliary Generators by U. S. Army and U. S. Navy potx
Ngày tải lên :
27/06/2014, 05:20
... filters Proper installation and maintenance of oil filters and mechanical operation of the engine are equally important for treatment of oil Prevention of contamination and removal of contaminants ... absorption of oils and solvents, and to promote cleanliness and ease of cleanup Plates and gratings covering floor trenches must be grounded Rubber matting should be installed in front of and around ... fireproof and constructed of poured concrete or concrete and cinder blocks with a roof of reinforced concrete, steel, or wood supports with slate or other fireproof shingles Ventilation and openings...
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Army TM Operation, Maintenance and Repair of Auxiliary Generators docx
Ngày tải lên :
27/06/2014, 08:20
... filters Proper installation and maintenance of oil filters and mechanical operation of the engine are equally important for treatment of oil Prevention of contamination and removal of contaminants ... absorption of oils and solvents, and to promote cleanliness and ease of cleanup Plates and gratings covering floor trenches must be grounded Rubber matting should be installed in front of and around ... fireproof and constructed of poured concrete or concrete and cinder blocks with a roof of reinforced concrete, steel, or wood supports with slate or other fireproof shingles Ventilation and openings...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORSD potx
Ngày tải lên :
27/06/2014, 18:20
... filters Proper installation and maintenance of oil filters and mechanical operation of the engine are equally important for treatment of oil Prevention of contamination and removal of contaminants ... absorption of oils and solvents, and to promote cleanliness and ease of cleanup Plates and gratings covering floor trenches must be grounded Rubber matting should be installed in front of and around ... fireproof and constructed of poured concrete or concrete and cinder blocks with a roof of reinforced concrete, steel, or wood supports with slate or other fireproof shingles Ventilation and openings...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 2 pptx
Ngày tải lên :
12/08/2014, 16:21
... their demand, consumption, voltage, phase, and frequency requirements Also to be considered are load trend, expected life of the project and of the equipment, fuel cost and availability, installation ... generation, transmission, and power consumers The frequencies and sources of RFI can be determined by tests Proper enclosures, shielding and grounding of AC equipment and devices should eliminate ... to another The extent of load shedding and the sequence of dropping loads and restoring to normal are also contained in the plan 2-10 Components Standards for selection of components for an auxiliary...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 4 pps
Ngày tải lên :
12/08/2014, 16:21
... regulation of DC generators may be accomplished through adjustment of the speed droop of the governor g Types of governors Usually four types of governors are used; mechanical, hydraulic, pneumatic, and ... flyweights; a valve mechanism; a regulating cylinder and piston; and a pressure pump and relief valve The assembly is adjustable for various ranges of speed and sensitivity The hydraulic principle provides ... spring and these forces operate through linkage to control the throttle of the engine (4) Electronic (isochronous) speed control is the maintenance of constant engine speed independent of the...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 5 ppt
Ngày tải lên :
12/08/2014, 16:21
... smoothness and absence of scratches and nicks (d) Camshaft cams and cam faces for worn or deformed condition; journal surfaces and bearings for highly polished condition and absence of scratches, ... condition and absence of scratches, nicks, cracks, and deformation (f) Pistons for cracks and warped condition; verify pistons, rings, and pins comply with manufacturer’s requirements; and rings and ... pressure and reduces the air volume as it pumps air to the combustor and through the engine (2) Fuel (liquid and/ or natural gas) is delivered d to the combustor by a fuel system consisting of a manifold,...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 6 pps
Ngày tải lên :
12/08/2014, 16:21
... alternating characteristics of the current The generated voltage is proportional to the strength of the magnetic field, the number of coils (and number of windings of each coil), and the speed at which ... 120/240 volts, load 1,0 and load 2,0 would consist of 120-volt lamps and 120-volt singlephase power equipment Load 1,2 would consist of 240-volt power equipment Two voltmeters and two TM 5-685/NAVFAC ... angle = number of turns = line frequency (h) The generated voltage is proportional to the strength of the magnetic field, phase, and number of turns in series between terminals and the speed 4-6...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 7 ppt
Ngày tải lên :
12/08/2014, 16:21
... level of fault current Most units function as overcurrent trip devices and consist of a solenoid tripper and solid-state components The solid-state components are part of the power sensor and provide ... readings and result in inaccurate data, damage and injury All conductors and terminations should carry identification that matches schematics, diagrams and plans used for construction and maintenance ... end of the shaft is supported by the coupling to the prime mover and one bearing is used at the other end The selections of bearing type and lubrication are based on generator size, type of coupling...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 8 ppt
Ngày tải lên :
12/08/2014, 16:21
... barriers; clean off smoke and dust Repair moderate damage to bushing insulation by sanding smooth and refinishing with a clear insulating varnish Inspect alignment and condition of movable and stationary ... consist of three functional elements: main contacts to connect and disconnect the load to and from the sources of power; sensing circuits to constantly monitor the condition of the power source and ... for PCB details PCBs are powerful solvents Handling and disposal information and special gloves are required Check condition, alignment, and adjustment of contacts Verify that contacts surfaces...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 10 pptx
Ngày tải lên :
12/08/2014, 16:21
... clean and inspect piping, circulating pumps and equipment Refer to appendix D (q) Cooling system service Clean and inspect entire cooling system yearly Overhaul pumps and recondition valves and ... and exhaust inspection as described previously Check standoffs, brackets and struts for looseness, cracks, and damage Check ignition exciter, igniter plugs and leads for damage, overheating and ... frequency of checks (q) Gauges and instruments Verify that gauges and instruments have up-to-date calibration certifications Read and record all indications of gauges, thermometers and other...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 11 ppt
Ngày tải lên :
12/08/2014, 16:21
... spectrometric analysis of the metal particles It is necessary to collect and evaluate data for type and quantity of engine wear-metals Study of this data shows trends of engine wear and expected future ... requirements and fuel availability B-2 B-3 Fuel storage maintenance procedures a Provide the base engineer’s office with the reports and results of inspections performed in paragraphs C-lc and C-2c ... antifreeze) and should be clear (2) Examine the sample to determine the type and quantity of contamination Rust, a chemical combination of iron, water, and air, is frequently found The presence of rubber...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 12 pptx
Ngày tải lên :
12/08/2014, 16:21
... defective part often will lead to a series of diffi- culties originating from by-products or effects of the initial failure Therefore, carefully check all of the related and resultant functions of the ... identify the problem b Repairs Repairs must be prompt and thorough to restore the engine to serviceable condition as rapidly as possible Such repairs normally depend on the immediate repair parts inventory ... cover gaskets, and any other gaskets that have been disturbed during the tune-up _- G-4 Engine failure and repairs a Failure identification A well planned and executed preventive maintenance program...
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OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 13 potx
Ngày tải lên :
12/08/2014, 16:21
... 22 UNIT STARTED ON /XI c ELECTROLYTE LEVEL 1ST TRY Use the reverse side of this form and/ or 8-l /2 x 1” paper if number), and for corrective action(s) taken NOTE 1: Mark S for Satisfactory, U for ... 10 KW LOAD PHl 12 VOLTAGE g LOCATION OF LEAK NO S U REMAFiKS N Tank) 16 VOLTAGE NO PH3 /Commercial) d FUEL LEAKS /XI YES 17 BATTERY CHARGER NO c LOCATION OF LEAK b AMPS a VOLTS I BATTERY BANK ... (See /Vote 21 a TEMP DURING STANDBY’ I b TEMP DURING OPERATIONS c COOLANT ADDED (Level) SHOP SUPERVISOR d ANTIFREEZE PROTECTION (See FAN BELT CONDITION f RADIATOR AND LOUVER CONDITION h DATE LOCATION...
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Machinery Component Maintenance and Repair P1
Ngày tải lên :
17/10/2013, 12:15
... Repair and Maintenance of Rotating Equipment Components 447 Pump Repair and Maintenance Installation of Stuffing Box Packing Welded Repairs to Pump Shafts and ... 6-C—Balancing and Vibration Standards Appendix 6D—Critical Speeds of Solid and Hollow Shafts Part III: Maintenance and Repair of Machinery Components 367 Ball Bearing Maintenance and Replacement ... Definition of Terms Purpose of Balancing Types of Unbalance Motions of Unbalanced Rotors Balancing Machines Centrifugal Balancing Machines Measurement of Amount and Angle of Unbalance Classification of...
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Machinery Component Maintenance and Repair P2
Ngày tải lên :
19/10/2013, 19:15
... frequency of inspections Monitoring of plant and equipment performance by regular visits of process and mechanical specialists to the facilities This provides the necessary final tie of the centralized ... The system of plant maintenance and engineering services outlined has been successful in achieving exceptionally low maintenance costs for a nationwide complex of plants The overall maintenance ... plant maintenance and engineering for multi-plant corporations 32 Machinery Component Maintenance and Repair Figure 2-3 Simplified computer program used to evaluate compressor efficiencies Maintenance...
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Tài liệu Inspection, Evaluation and Repair of Steel Structures P2 ppt
Ngày tải lên :
19/01/2014, 23:20
... contact surfaces of the structure and seal, galvanic corrosion if the seal plate is of a dissimilar metal to that of the structure itself, or erosion corrosion if abrasive sand and silt particles ... locations on all structures (i.e., trunnion assembly of gates and valves, end posts of lift gates, and end disks of roller gates), lifting connections, and areas where skin plate ribs are attached to ... scales, magnifying glasses, and other hand tools to identify, measure, and locate areas of concerns Boroscopes, flashlights, and mirrors may be necessary to inspect areas of limited accessibility...
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Tài liệu Inspection, Evaluation and Repair of Steel Structures P1 docx
Ngày tải lên :
19/01/2014, 23:20
... hydroxide often forms Deposits of film-forming materials such as oil and grease and sand and silt can also contribute to corrosion by creating crevices and ion concentration cells (2) Corrosion of steel ... December 2001 Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair of hydraulic steel structures, ... the lock chamber water level and to opening and closing of gates The number of load cycles is a function of the number of lockages that occurs at the lock The number of load cycles due to gate...
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Tài liệu Báo cáo khoa học: "Analysis and Repair of Name Tagger Errors" pptx
Ngày tải lên :
20/02/2014, 12:20
... the value of N required to include the best hypothesis, as a function of the margin We then divide the margin into ranges of values, and set a value of N for each range, with a maximum of 30 424 ... annotator Our analysis of the types of errors, and the performance of our knowledge sources, gives some indication of how these further gains may be achieved The selectional force of event extraction ... committee” supports the analysis of “8” as an organization name in preference to the alternative name candidate “8” For a name candidate, high-confidence information...
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