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Glossary of terms you will come across during your Phase 2 training.


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T

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Codes for Theory Examinations:


Codes for Practical Examinations:

Keyword(s):
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Formula used to calculate the torque transmitted by a clutch, where:

Calculation of tspur and friction couples

Note: When carrying out these calculations, measurements must be in basic SI units:

This is why the answer to your calculations should be in Nm. (Newton metres).

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Bearings used extensively in the transmission systems of plant vehicles. These types of bearings are excellent for bearing both radial and axial loads. Because they can bear the axial loads in one direction only, they are often fitted in pairs, for example wheel bearings.

Taper roller bearings

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This is a type of pulley locking arrangement often found on small plant machinery.

The pulley consists of two parts, an inner part which is tapered and sits into to the outer part. The inside of the outer part is also tapered, and the outside of the outer part has the sheaves of the pulley


Contributors to this glossary entry: Lorcan McGivney and Ryan Owens, CP Fitters, January to May, 2012

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Tappet and camshaftThe tappet is the part that follows the profile of the lobe on the camshaft. One end of the tappet runs against the camshaft, and the other end has an indentation into which the pushrod sits.

Another name for the tappet is the cam follower (because it follows the contours of the camshaft).

A common phrase used by cp fitters and mechanics is 'doing the tappets', which actually refers to setting the valve clearances between the rocker arms and the valves.

Shown below is a variation on a tappet. In this case the tappet sits over the valve and spring assembly. The camshaft runs on top of this arrangement, and once again, the tappet follows the profile of the cam.

Keyword(s):
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During Phase 2, you must take and pass six practical exams, one for each module.

As part of those exams, as well as the practical work, you are also required to answer task related questions. These are questions your examiner will ask you about the topic being examined. For example, in the electrical practical exams, you can expect to be asked several questions about batteries, as well as other questions related to what you are doing.

These questions are essential marking points. In other words, you must be able to answer these questions in order to pass the exam.

Keyword(s):
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Certain parameters that affect the operation of the engine are stored in the ECM. These prameters can be changed by the use of the EST. The tattletale logs the number of changes that have been made to the parameter. The tattletale is stored in the ECM.
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Suppliers for Bomag parts for Bomag machines used on the Phase 2 course - Bomag Plate Compactor and the Bomag Pedestrian Roller.

Formerly in Greenogue Business Park
Rathcoole
Co. Dublin
They have closed their Depot in Southern Ireland, and now operate exclusively from the North.
Tel: 01 4019 300 (Ringing this number now gets you through to Northern Ireland.
Fax: 01 4019 399
info@tbfthompsonplant.ie

Apparently, as of August, 2011, this depot in Dublin is now closed. Ringing the 01 4019 300 number gets you through to Northern Ireland, where you can then ask for stores.

One contact in the stores there is Stephen Mullen in Belfast, his direct number is: 048 9084 4510

The Depot number in Belfast is: 048 9084 8371

NOTE: For Bomag Parts, you need to quote the 12 digit code number on plates mounted on the item of equipment.

Keyword(s):
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Top dead centre, and bottom dead centreTop Dead Centre: The instant at which the piston in an engine has reached its highest point within the cylinder. It is called "dead" centre, because the piston has finished its upwards movement, and stops (hence the use of the term "dead") before commencing its downward movement.

At TDC, the small end, big end and main bearings are in one straight line.

A point sometime before TDC is often used to set spark ignition (petrol engine) or diesel injection (diesel engine). For example, a petrol engine could be set to fire at 80 BTDC (Before Top Dead Centre), or a diesel engine could have injection set 150 BTDC.

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Technicians who succesfully complete their National Craft Certificate (formerly the Senior Trade Certificate) and the Advanced Automotive Technological Certificate are awarded a Technicians Diploma and are entitled to use the title Tech. Dip.

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Please note, if you want to contact the main Training Centre in Baldoyle, you need to ring 01-8167400.


If you want to contact the CP Fitters' Section, you can Contact Us by email, admin@cpfitters.info, or by telephone: 00 353 1 8167543 This number gets you through to the CP Fitters' Section, Baldoyle Satellite Unit.

Our Address is : Construction Plant Fitters' Section, Unit 116, Grange Way, Baldoyle Industrial Estate, Baldoyle, Dublin D13 CA48.
We operate in a satellite unit which is about 300 metres away from the main training centre. You can see the location of this unit here, in Google Maps. You can also Check here for directions to the Baldoyle Training Centre.

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