Fleet Maintenance - 21

crevice on the body of the vehicle. Moisture can
easily find its way into the crevice and, coupled
with exposure to oxygen, start the corrosion process.
Additionally, when a component comes under
extreme stress over time with heavy loads, it may
crack. This crack, either in metal, paint, or other
material, allows moisture to enter the component
or system, leading to corrosion.
De-icing products used on roadways and parking lots in colder climates can be highly corrosive.
Road salts - whether sodium, magnesium, potassium, or calcium chloride - may be good at breaking
up snow and ice to improve driving conditions,
but they are not good for vehicles. Salt accelerates
the chemical reaction of corrosion by absorbing
moisture from the air. With moisture, salt is able
to stick to a vehicle's components until the next
time the vehicle is cleaned or washed thoroughly.

116446900/Vitpho/Dreamstime

ยป The toll corrosion takes on vehicles can result in
breakdowns, safety concerns, loss of productivity,
and high repair and replacement costs.

Areas of concern

140826836/ Luboslav Ivanko/Dreamstime

reaction. This chemical reaction attacks surfaces
exposed to a gas or liquid from the surrounding environment. Warm temperatures, acids,
and salts accelerate the chemical reaction. If
left untreated, corrosion can weaken the vehicle body, system, or component to the point of
possible failure.
It is a natural process that is irreversible. Once
corrosion begins, the deterioration of material
quickly spreads to neighboring areas. All metals
corrode over time, some faster than others.
Electrical systems and non-metal components
are also susceptible to corrosion. It's a problem
every fleet has and will continue to face time and
time again.

The toll corrosion takes on vehicles can result in
breakdowns, safety concerns, loss of productivity,
and high repair and replacement costs.
Geographic locations that are humid or wet
are more prone to corrosion than hot and dry
climates. Moisture - whether through humidity
and condensation, or through precipitation such
as rain or snow - plays a leading role in causing
corrosion, especially for metals. Moisture sits on
the vehicle and its components until it eventually evaporates.
Moisture can seep into the smallest of areas
including fasteners, gaskets, or within chips and
dents. Say a driver is going down a paved highway
and the tire kicks up a stone that causes a small

It is imperative for fleets to check for corrosion
often and to look for any signs that may suggest
potential areas of concern.
"If corrosion is left unchecked, it could cause
structural weakness to the vehicle and its components, which could become dangerous to use," says
Scott Colvin, brand manager, commercial coatings
U.S. and Canada, PPG. PPG develops paints, coatings, and specialty materials for vehicles.
"This will force the vehicle off the road for extensive repairs, or worse - the vehicle can be too
damaged by corrosion to repair. Inspect vehicles
and components as often as possible and repair
corrosion early, while the areas are still small. It
is much easier and more cost-effective to repair
small corroded areas versus large areas."
Although corrosion can occur almost anywhere
on a truck or trailer, there are some areas that are
more susceptible than others. In addition, there
are areas and systems that some may not think
about where corrosion can occur.
The bottom half of the truck and trailer is typically the first place to look for premature corrosion. This area is known as the "hot zone." The hot
zone covers all parts and components up to four
feet above the road, where the most moisture and
salt from the roads may come into contact with
the vehicle.

December 2019 | VehicleServicePros.com

21


http://www.VehicleServicePros.com

Fleet Maintenance

Table of Contents for the Digital Edition of Fleet Maintenance

Uptime: Top Industry Trends in 2020 and Beyond
How Active Safety Systems Pave the Way to Vehicle Autonomy
Vehicles: Steps to Understand and Prevent Corrosion
In the Bay: Remote Vehicle Management Enters a New Phase
Shop Operations: How to Prevent, Contain, and Clean Up Shop Spills
Management: A Guide to World-Class Maintenance
Training: What is a Bistable Relay?
Reman, Rebuild, Replace: What's the Difference Between a Supplier and a Supply Partner?
Diagnostics: Four Steps of an Effective Maintenance Program
Fleet Parts & Components
Tools & Equipment
Classifieds
Guest Editorial: Trends in Asset Telematics
Fleet Maintenance - 1
Fleet Maintenance - 2
Fleet Maintenance - 3
Fleet Maintenance - 4
Fleet Maintenance - 5
Fleet Maintenance - 6
Fleet Maintenance - 7
Fleet Maintenance - Uptime: Top Industry Trends in 2020 and Beyond
Fleet Maintenance - 9
Fleet Maintenance - How Active Safety Systems Pave the Way to Vehicle Autonomy
Fleet Maintenance - 11
Fleet Maintenance - 12
Fleet Maintenance - 13
Fleet Maintenance - 14
Fleet Maintenance - 15
Fleet Maintenance - 16
Fleet Maintenance - 17
Fleet Maintenance - 18
Fleet Maintenance - 19
Fleet Maintenance - Vehicles: Steps to Understand and Prevent Corrosion
Fleet Maintenance - 21
Fleet Maintenance - 22
Fleet Maintenance - 23
Fleet Maintenance - 24
Fleet Maintenance - 25
Fleet Maintenance - 26
Fleet Maintenance - 27
Fleet Maintenance - 28
Fleet Maintenance - 29
Fleet Maintenance - In the Bay: Remote Vehicle Management Enters a New Phase
Fleet Maintenance - 31
Fleet Maintenance - 32
Fleet Maintenance - 33
Fleet Maintenance - 34
Fleet Maintenance - 35
Fleet Maintenance - Shop Operations: How to Prevent, Contain, and Clean Up Shop Spills
Fleet Maintenance - 37
Fleet Maintenance - 38
Fleet Maintenance - 39
Fleet Maintenance - 40
Fleet Maintenance - 41
Fleet Maintenance - Management: A Guide to World-Class Maintenance
Fleet Maintenance - 43
Fleet Maintenance - Training: What is a Bistable Relay?
Fleet Maintenance - 45
Fleet Maintenance - Reman, Rebuild, Replace: What's the Difference Between a Supplier and a Supply Partner?
Fleet Maintenance - 47
Fleet Maintenance - Diagnostics: Four Steps of an Effective Maintenance Program
Fleet Maintenance - 49
Fleet Maintenance - 50
Fleet Maintenance - 51
Fleet Maintenance - Fleet Parts & Components
Fleet Maintenance - 53
Fleet Maintenance - 54
Fleet Maintenance - 55
Fleet Maintenance - 56
Fleet Maintenance - 57
Fleet Maintenance - 58
Fleet Maintenance - Tools & Equipment
Fleet Maintenance - 60
Fleet Maintenance - 61
Fleet Maintenance - 62
Fleet Maintenance - Classifieds
Fleet Maintenance - 64
Fleet Maintenance - 65
Fleet Maintenance - Guest Editorial: Trends in Asset Telematics
Fleet Maintenance - 67
Fleet Maintenance - 68
Fleet Maintenance - Insert1
Fleet Maintenance - Insert2
Fleet Maintenance - Cal1
Fleet Maintenance - Cal2
Fleet Maintenance - Cal3
Fleet Maintenance - Cal4
Fleet Maintenance - Cal5
Fleet Maintenance - Cal6
Fleet Maintenance - Cal7
Fleet Maintenance - Cal8
Fleet Maintenance - Cal9
Fleet Maintenance - Cal10
Fleet Maintenance - Cal11
Fleet Maintenance - Cal12
Fleet Maintenance - Cal13
Fleet Maintenance - Cal14
Fleet Maintenance - Cal15
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