Glossary “hard chrome” Definition:
A heavy-chrome plating applied to metal to increase its durability and resistance to wear.
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hand glazes
Glossary “hand glazes” Definition:
Used for final smoothing and shining of the paint finish.
hand scraper
Glossary “hand scraper” Definition:
Hand tool that willeasily remove gaskets and softened paint (where a paint stripping chemical has been used). They are for use on flat surface areas.
hand shield
Glossary “hand shield” Definition:
Hand held protective device that has a filter plate and is used in arc welding, arc cutting, and thermal spraying for shielding the eyes, face and neck.
hand tight
Glossary “hand tight” Definition:
To assemble plain or threaded parts as much as can be done by hand, without the aid of a wrench or tool.
hand tools
Glossary “hand tools” Definition:
Term for such tools as sockets, wrenches and screwdrivers.
hand valve
Glossary “hand valve” Definition:
Valve mounted on the steering column or dash, used by the driver to apply trailer brakes independently of the tractor brakes.
hand compound
Glossary “hand compound” Definition:
Compound designed to be applied by hand on a rag or cloth.
hand compounds
Glossary “hand compounds” Definition:
An oil based rubbing compound that provides lubrication, best on small or blended areas.
halogens
Glossary “halogens” Definition:
Refers to any of five nonmetallic and electronegative chemical elements: astatine (At), bromine (Br), chlorine (Cl), fluorine (F), and iodine (I), such as those that may be found in refrigerants.
hammer forming
Glossary “hammer forming” Definition:
To form or shape metal by hitting it with a hammer over, on, or into a base form.
hammer off dolly
Glossary “hammer off dolly” Definition:
Method used to straighten metal just before the final stage of straightening.
hammer on dolly
Glossary “hammer on dolly” Definition:
Method used to stretch metal and to smooth small, shallow dents and bulges.
hand blaster
Glossary “hand blaster” Definition:
Small, portable tool for blasting parts and panels on the vehicle.
halogen lamp
Glossary “halogen lamp” Definition:
High output, white-light lamp used as a headlight. Also known as halogen light.
halogen leak detector
Glossary “halogen leak detector” Definition:
Electronic device used to detect leaks in a refrigerant system.
halogen light
Glossary “halogen light” Definition:
High output, white-light lamp used as a headlight. Also known as halogen lamp.
hall effect
Glossary “hall effect” Definition:
Development of a voltage across a semiconductor carrying a current when the semiconductor is in a magnetic field that is at right angles to the current flow.
hall effect sensor
Glossary “hall effect sensor” Definition:
Type of electromagnetic sensor used in electronic ignition systems and other sensing circuits. Named for Edwin H. Hall, who discovered the Hall effect
hall effect switch
Glossary “hall effect switch” Definition:
Device that produces a voltage pulse dependent on the presence of a magnetic field. Hall effect voltage varies as magnetic reactance varies around a current-carrying semiconductor.