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HomeDirectAccessTerminology You Need to Know
Access 101

Terminology You Need to Know

Blog Posts - Apr 21

Terminology You Need to Know

Learning the lingo of the aerial equipment market can be tough because of all the abbreviations and acronyms, especially if you are newer to the access industry. 
Terminology You Need to Know at a Glance
Unfortunately, a serious job site accident or expensive equipment damage can quickly happen if you do not fully understand the terminology being used in conversations. Becoming familiar with common aerial terms will help you build confidence, as well as credibility, working with this type of equipment — and it can help you to avoid potentially embarrassing, and perhaps costly, mistakes that could happen from using industry jargon incorrectly.

To promote the safe use of aerial equipment, you don’t have to be an expert, but you do need to know the basics. Below is a quick reference guide to help you learn the most common terminology, abbreviations and acronyms used in the access industry:

 

ABBREVIATION

TERMINOLOGY

MEANING

2WD

Two-Wheel Drive

drive power to only two wheels

4WD

Four-Wheel Drive

drive power to all four wheels

AC

Air Conditioning

option in some Telehandlers

AC

Alternating Current

type of electric current

AG

Agriculture

market that uses telehandlers

AWD

All-Wheel Drive

drive system which can automatically switch between 2WD and 4WD

ADE

Advanced Design Electronics

started with use of modules in Platform & Ground boxes

ANSI

American National Standards Institute

machine standards for USA

AR

As Required

quantity of an item could vary, use as many as needed

ASSY

Assembly

the connection and attachment of parts, subassemblies, and modules in a definite sequence to produce a finished machine

AUX

Auxiliary Hydraulics

a system delivers hydraulic flow from a hydraulic pump to operate auxiliary equipment or attachments

AWP

Aerial Work Platform

former industry name for Boom Lifts, Scissor Lifts & Vertical Masts

BLAM

Boom Length & Angle Module

module used on Ultra booms

BLAP

Boom Length, Angle & Pressure

module used on Ultra booms

CAC

Charge Air Cooler

section of a radiator assembly

CAN

Controller Area Network

network sends signals to modules (usually seen as CANbus)

CCW

Counterclockwise

moves the opposite of how a clock works

CE

French for European Conformity

European machine standards

CM

Centimeter

Metric unit of measurement

CSA

Canadian Standards Association

machine standard for Canada

CY

Cylinder

mechanical actuator that is used to give a unidirectional force through a unidirectional stroke

CW

Clockwise

moves the same direction as a clock

DC

Direct Current

type of electric current

DEF

Diesel Exhaust Fluid

used on T4F engines 75HP and above to temper emissions

DIA

Diameter

a straight line that passes through the center of the circle

DIM

Dimension

a measurable extent of some kind, such as length, breadth, depth or height

DPF

Diesel Particulate Filter

a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine.

DRT

Decomposition Reactor Tube

where an exhaust stream is injected with DEF

DOC

Diesel Oxidation Catalyst

Type of muffler that started with T4i

DOS

Drive Orientation System

function on boom lifts affects drive when swung to one side

ECM

Engine Control Module

control unit that controls engine

ECU

Engine Control Unit

control unit that controls engine

EDC

Electrical Displacement Control

control used on hydraulic pump (ex. 70007474)

EGR

Exhaust Gas Recirculation

technique used for emissions reduction in combustion engines

EMR

Engine Module

electronic engine control system for Deutz (ex. 7027795, 70005495)

EMS

Emergency Stop

switch in platform & ground to stop machine functions

ENG

Engine

converts power into motion

ER

Engineering Revision

revision to an item

ERC

Electric Remote Control

box used with throttle actuator (ex. 0060033, 2910000)

FAQ

Frequently Asked Questions

a list of common inquiries found on many websites

FT

Foot

Imperial unit of measurement

HOC

Hydraulic Oil Cooler

section of a radiator assembly

HRC

Higher Regulated Countries

more regulated emissions standards (USA, Canada, Europe, Japan)

HVAC

Heating, Ventilating & Air Conditioning

market that uses MEWPs to complete work at height

HYBRID

Hybrid

A power option that uses both a battery and an engine to power a machine

HYD

Hydraulics

use of pressurized liquids to generate, control and transmit power

ID

Inside Diameter

dimension inside a circle or ring

IN

Inch

Imperial unit of measurement

IPAF

International Powered Access Federation

industry organization

ISO

International Organization of Standards

group develops standards for products

JLG

John L. Grove

founder of JLG Industries, Inc.

JLGU

JLG University

online training site

KG

Kilogram

Metric unit of measurement

L

Liter

Metric unit of measurement

LB

Pound

Imperial unit of measurement

LCD

Liquid Crystal Display

type of display on some machines

LED

Light Emitting Diode

type of display on some machines

LH

Left Hand

Left side of part or machine

LP

Liquid Propane

alternative to gas in Dual Fuel machines

LRC

Lesser Regulated Countries

less regulated emissions standards (most besides USA, Canada, Europe, Japan)

LS

Low Sulfur

type of Diesel Fuel (used mostly outside USA, Canada, Europe, Japan)

LSS

Load Sensing System

weighs the load in the machine platform

M

Meter

Metric unit of measurement

MAP

Manifold Absolute Pressure

engine sensor measures pressure inside intake manifold

MEWP

Mobile Elevating Work Platform

new industry name for Boom Lifts, Scissor Lifts & Vertical Masts

MM

Millimeter

Metric unit of measurement

MSDS

Material Safety Data Sheet

document lists potential health effects of a part

NLA

No Longer Available

the part is unavailable to sell

NPD

New Product Development

team assists in creation of new machines

NSS

Not Sold Separately

part is usually available in a bigger assembly, but not separately

O2

Oxygen

sensor measures emissions

OD

Outside Diameter

dimension outside a circle or ring

OZ

Ounce

Imperial unit of measurement

PCV

Positive Crankcase Ventilation

valve to vent buildup of combustion gases in crankcase

PDC

Parts Distribution Center

a warehouse for our parts

PDI

Pre-Delivery Inspection

inspection of the machine prior to each rental or sale

PN

Part Number

the number of an item

PSI

Pounds-Per-Square-Inch

measurement for ground contact pressure

QTY

Quantity

an amount

R&D

Research & Development

JLG Department analyzes & develops new products

RAD

Radius

half of the diameter. It starts from a point on the circle, and ends at the center of the circle.

RAS

Rear Axle Stabilization

Increases stability on SkyTrak (Stabil-TRAK system) and JLG Telehandlers

REF

Reference

mention or refer to

REV

Revision

a new, amended, improved, or up-to-date version

RH

Right Hand

right side of part or machine

ROPS

Roll Over Protection Structure

Installed on Telehandler cabs for protection

RT

Rough Terrain

unimproved construction site terrain

SCR

Selective Catalytic Reduction

process in which emissions are reduced

SPEC

Specification

a detailed description of the design and materials used to make something

SN

Serial Number

the exclusive identification number of an item or machine

T4F

Tier 4 Final

emissions level of engine (final stage)

T4i

Tier 4 Interim

emissions level of engine (phase just before the final stage)

T-MAP

Temperature & Manifold Absolute Pressure

engine sensor measures temperature & pressure inside intake manifold

T/T

Turntable

the turntable of a boom lift

UGM

Universal Ground Module

now used on boom lifts in most Ground Control boxes

ULS

Ultra-Low Sulfur

type of Diesel Fuel (USA, Canada, Europe, Japan)

V

Volts

unit of electric force

W

Watts

unit of electric power

 

Interested in learning more? JLG® training can provide you with the information you need to know about the aerial industry, bringing safety and confidence to your team.


From supervisor training to MEWP and telehandler operator and equipment service training, JLG offers comprehensive training programs developed by industry experts to meet all your needs.
To learn more about JLG training options, click here.


To access additional tools, reference materials and resources from JLG that can help you get your job done safely and more effectively, visit resources.


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