CP Fitters' Phase 2 Apprenticeship Training

Wrought iron is got by removing the carbon from cast iron.

Wrought iron is very pure, with a ferrite content of 99.95%. The remaining 0.05% is slag, picked up during the smelting process.

Wrought iron is easily bent or twisted when cold, but it has excellent resistance to fracture when subjected to sudden shocks or blows.

From their website:

Würth Ireland Ltd. is Ireland's largest distributor of Assembly Techniques and is part of the Würth Group which has over 400 active companies in 86 countries worldwide. Traditionally Würth Ireland has been a direct sales company with 120 sales representatives servicing all 32 counties. The name Würth is synonymous with quality, and this standard was the foundation which led to acquiring their leading position in the market. Their ability to innovate and anticipate along with their excellent service and availability makes them Irelands top supplier to the Woodworking, Construction, Automotive and Metal Industries.

Sales Representative: Joe Flaherty

• Email: joe.flaherty@wuerth.ie
• Mobile: 086 603 6281
• Telephone: 061 430 200

Wurth supply us with various items such as the TimeSert thread repair kit. They also supply us with course expendables such as drill bits, nuts, bolts and carburettor cleaner.

Würth have a trade outlet in Finglas, just off the M50, Junction 5. Take this exit and head toward the city.

If you have Google Earth installed on your computer, then download this file to view the exact location.

Satnav coordinates for Finglas Depot:
53°23'50.28"N  
6°19'14.16"W

Cortavacan, Eslin Bridge, Carrick on Shannon, Co. Leitrym.

Company Contact: Miko Wynne, telephone: 071 9631 664

Apprentices:

• Brian Higgins (g1cp13a)

Yanmar manufacture engines, and on the phase 2 course, several items such as the spate water pump and the diaphragm water pump use this engine.

This site provides general information and links to technical manuals in pdf format.

• Yanmar website
• The Yanmar L series engine used on items of small plant such as the Spate water pump and the diaphragm water pump.

From their website:

Zama is the world's largest manufacturer of diaphragm carburetors for hand-held outdoor power products. Read More...

• You can download various technical documents from their website here
• Technical support and FAQ from Zama 

A Zener diode behaves like an ordinary diode up to a certain point. In other words, it acts as a one way electrical valve that allows electricity to flow in one direction only. It does this up to a certain point. However, when voltage acting against the normal flow rises to a certain point, the Zener collapses and conducts freely in both directions. It will continue to do that until the voltage acting against the Zener drops below a given value. Once this happens, the Zener again behaves like an ordinary diode.

Because of this quality, the Zener is especially useful in voltage regulation circuits.

Letter from the Greek alphabet used on the CP course to represent the coefficient of friction when carrying out calculations in the Transmissions Module of the course.

The co-efficient of friction between two surfaces is simply the relationship or ratio between those two forces. If I want to move a body along a surface at a constant speed, it will require a certain force. The magnitude (size) of that force depends upon the nature of the two surfaces in contact and the downward force pushing the two surfaces together.

The Sterling Engine is a simple piece of engineering that runs on hot and cold air.

The engine has very few parts:

• Cylinder
• Displacer Piston
• Diaphragm
• Flywheel
• Crankshaft.

When the bottom of the Cylinder is heated the air will rise pushing the Piston to the top of the Cylinder. When the Piston reaches top dead center the Diaphragm pulls all the hot air in, the Piston drops back down to Bottom Dead Center and the Diaphragm pushes the hot air back into the Cylinder. This process is constantly repeated.