Edited By William C. Plisga and Michael D. Derricks are structural towers commonly used where disassembly is seldom or never required, such as on offshore floating vessels and fixed platforms, and they are rarely guyed. Masts are structural towers typically used in applications where the structure must be partially disassembled for transportation among well locations. The traditional hoisting system is composed of the draw works, traveling block, crown block, extra line storage spool, various clamps, hooks, and wire rope. The more recent drilling and completion rigs utilize top drive systems that have made the handling of tubular goods more efficient for both land and offshore drilling, completion, and production operations. A regular preventive maintenance program should be established for all hoisting tools traditional rotary table and the newer top drive systems. Written maintenance procedures should be given to the crew or maintenance personnel.
Chapter 4 – Drilling and Well Completions
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Watt hour Meter Hookup Drawings. The following are simple hook up drawings for the Digi Watt Watthour meter. They are economical and complete units with nothing else to purchase to monitor, record a create a history of usage. Consult an electrician .
A maintenance inspection b. A safety and operational inspection The maintenance inspection is geared more to preventative maintenance and identifying those items requiring repairs that will prevent the crane from being in a like new condition or from operating correctly, such as oxidized or cracking paint, sheet metal damage, track pad wear, track roller wear, rubber tire wear, oil levels, oil changes, etc. The Equipment Superintendent or his representative usually performs this inspection.
The safety and operational inspection, on the other hand is more concerned with identifying those items that will either stop a lift during the middle of an operation such as a worn sheave bearing that could freezes to it’s shaft or those items that could possibly lead to a component failure and an accident such as a hoist line with broken wires or a bent boom lacing. For example, this inspection would not be as concerned with tire wear because all lifts are required to take place on outriggers.
However, excessive tire wear would be noted on the inspection report. Both inspections can be and sometimes are done by the same inspection party, but this procedure is geared to the safety and operational inspection and assumes that someone else will complete the maintenance inspection. Cranes should be visually inspected by “a qualified person”. A qualified person being someone who by virtue of his education and experience is knowledgeable about cranes, crane maintenance and rigging operations.
Cranes should be inspected per the crane manufactures recommendations and rigging procedures. This means that the crane must be assembled with components specified by the manufacture and using his assembly procedures.
Simple Paper Inventions Machines That Move Drawings That Light Up And Wearables And Structures You
Wire drawing Wire is often reduced to the desired diameter and properties by repeated drawing through progressively smaller dies, or traditionally holes in draw plates. After a number of passes the wire may be annealed to facilitate more drawing or, if it is a finished product, to maximise ductility and conductivity. Finishing, jacketing, and insulating[ edit ] Coaxial cable , one example of a jacketed and insulated wire Electrical wires are usually covered with insulating materials , such as plastic, rubber-like polymers, or varnish.
Insulating and jacketing of wires and cables is nowadays done by passing them through an extruder.
Copying Detailing Notes from EPG to MicroStation Drawings [MS Cell] in the standard detailing notes indicates those notes are available in MicroStation note cells because of the drawing associated with the note. Please refer to Copying Detailing Notes from EPG to MicroStation Drawings .
Unless elsewhere provided for in this Regulation, an employer must ensure that a fall protection system is used when work is being done at a place a from which a fall of 3 m 10 ft or more may occur, or b where a fall from a height of less than 3 m involves a risk of injury greater than the risk of injury from the impact on a flat surface.
This guideline explains how to calculate the fall distance when workers are on a sloped roof. At a minimum, this will be the distance from the bottom edge of the roof to the next safe lower surface or ground below. The vertical distance from the worker’s position to the unguarded roof edge should be added when on a roof with a slope greater than 4 vertical in 12 horizontal.
Purpose of guideline Section This guideline explains the hierarchy of controls and gives examples of how the circumstances of the workplace affect the selection of fall protection. Selection of fall protection method The employer must use “guardrails … or other similar means of fall restraint” under section 2 if it is practicable for the work process. If it is not practicable, the employer can use another fall restraint system under section 3.
However, the employer cannot use a fall arrest system or a rope access system under section 4 unless it is impracticable to use any fall restraint system under sections 2 and 3. Only if it is impracticable to use a fall restraint, fall arrest, or rope access system under sections 2 to 4 , or if the use of a fall arrest or rope access system will result in greater hazards, is the employer permitted under section 5 to use work procedures alone to minimize the risk of injury to a worker from a fall.
The selection of a method for fall protection under section Employers are expected to make a reasonable assessment and use good judgment in making this decision. What is practicable depends on the circumstances of each workplace and is a matter of assessment and judgment.
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Other documents used in the development of the CSS configuration are as follows: The usual appearance of them is to have the cause on the left hand side with the effect at the top with a ‘X’ matrix. Sometimes logic symbols are included which make the operator’s engineering design requirements unambiguous. Whilst this is an excellent approach it is rather costly, thus it is infrequently used. Cause and Effect – Some projects categorize cause and effects as part of process document and some other projects consider them an instrument deliverable.
This group will contain drawing details such as Cable tray crossing expansion joint, Standard mounting details for electrical light fitting, Transition cable tray to conduit, mounting arrangement for recessed light fixtures, Section detail for cable tray and AC duct and more.
Why Do You Need It? When a house is built in an area that is not served by a municipal water works, a private well system is used. The well pumps used in most systems are quite powerful, often capable of delivering more gallons of water per minute than any single faucet could draw. Everybody I have spoken to in the plumbing or water-well business says that well pumps can burn out prematurely if they are made to start and stop more than necessary.
By using a holding tank, the water can be used in a leisurely manner over a long time, and the pump will run briefly to refill the tank. A pressure tank can be as simple as a big metal chamber with one hole in the bottom for water to flow into. As the pump pushes water in, the air in the tank is compressed.
From the septic tank a single drain line is no longer advised. The separation of flow into two, three or more lines is accomplished with a distribution box or “D-box” to split the flow. In the D-box pipes are equipped with simple flow control valves in the form of eccentric plugs that evenly split the flow between lines.
Technical Resources. PPO UL AWM Hook Up Wire New Product Bulletin. 10/01/ Product Brochures / Bulletins. Blue Hose Cables Product Bulletin. SPIDER III Standard Line Switches Product Bulletin. 09/01/ Product Brochures / Bulletins. Wireless Lan Antennas Of The BAT Family Guide.
Farmers and fencing contractors who build fences for a living will tell you that you can’t find a better post driver than a Shaver. Our professional-grade post drivers are engineered for the most demanding jobs, from tough soil conditions to tricky side hills. Plus they have the ability to drive a wide variety of post types. Because we invented and patented the world’s first powered post driver more than 50 years ago, Shaver is the only choice for powerful, high-performance post drivers.
More importantly, we give you a choice of drivers to fit your operation. Choose between skid steer loader-mounted drivers or tractor-mounted models.
Field Fabrication of Piping spools
Process[ edit ] Animation productions begin by deciding on a story. The oral or literary source material must then be converted into an animation film script, from which the storyboard is derived. The storyboard has an appearance somewhat similar to a comic book, and it shows the sequence of shots as consecutive sketches that also indicate transitions, camera angles, and framing.
Technical Drawings and Schematics – Section C – Steering Systems and Related Components –
Over torque of the spindle nut will lead to a very hot bearing very quickly. Duane But here’s the exact instruction from X Tighten castilated nut figure 17 to ft. Many references I’ve seen recommend 0. Checker had all the parts in stock and were cheaper than AutoZone. When you look closely at the inside bearings you see “Mexico” on them!! The outside bearings are made in Germany. They have two different seals using the same number.
The grease will leak out and there goes the bearing.. GeneD I think the jury’s still out on the final verdict.
Chapter 4 – Drilling and Well Completions
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Instrument Hook Ups. Instrument Hook Up Diagrams detail the accessory and tubing hookup for both process and pneumatic instruments based on the tag number.
Piping Coordination Systems – Piping Isometrics Piping Isometric Unlike orthographics, piping isometrics allow the pipe to be drawn in a manner by which the length, width and depth are shown in a single view. Isometrics are usually drawn from information found on a plan and elevation views. The symbols that represent fittings, Valves and flanges are modified to adapt to the isometric grid.
The Iso, as isometric are commonly referred, is oriented on the grid relative to the north arrow found on plan drawings. Because iso’s are not drawn to scale, dimensions are required to specify exact lengths of piping runs. Pipe lengths are determined through calculations using coordinates and elevations. Vertical lengths of pipe are calculated using elevations, while horizontal lengths are caculated using north-south and east-west coordinates.
Piping isometrics are generally produced from orthographic drawings and are important pieces of information to engineers.