Gasboy Atlas Fuel Systems Owner Manual - Manual (Page 20)

The Atlas Fuel System Site Preparation
Page 16 MDE-4363F Atlas™ Fuel Systems Owner’s Manual · September 2011
Important Considerations for DEF Dispensers
• Conventional fluid handling precautions are also applicable to DEF.
• Avoid contact with eyes, skin, and clothing. Ensure that eyewash stations and safety
showers are close to the work location.
• DEF is mildly corrosive and non-flammable.
• Clean the DEF spill with water and dry the area with clean rags, especially areas that
contain metallic parts. Spilt DEF can be slippery and will corrode certain types of metallic
parts. Wear eye protection and rubber gloves during any cleanup activity.
• DEF is heavier than gasoline. Be aware that prover cans, containers filled with DEF, and
so on will be considerably heavier than gasoline.
Applicable during Installation and Operation of the Dispenser: DEF freezes at approximately
11 °F (-11.5 °C). Power to the dispenser and heater must always remain ON in cold weather. If
power is lost and the temperature drops below this point within the DEF cabinet, the system must
be inspected for freeze damage before restart. For sites that experience occasional power losses
or for sites that are located in very cold climates, it is recommended that a backup power generator
be used to maintain constant power to the dispenser. Do not use any additives to lower the freezing
point of DEF. Additives of any type must not be used in DEF. Freezing can result in damage or
inoperative hose breakaways, fluid lines or components, valves, nozzles and meters.
Prolonged storage at temperatures above 77 °F (25 °C) can impair the quality of DEF and reduce
its shelf life.
CAUTION
DEF is mildly corrosive. It can corrode components that are made from incompatible material(s)
and reduce their integrity. The use of incompatible material(s) may lead to leaks and spills, and can
contaminate and degrade the DEF. When dispensing DEF, verify with the manufacturer if the
material of all plumbing components are compatible with the DEF being dispensed.
CAUTION
Do not use Prover Cans meant for engine fuel with DEF or vice versa. Use stainless steel Prover
Cans for DEF. DEF and engine fuel must not be mixed with each other or be contaminated by each
other. Else, damage to a vehicle’s engine or pollution control devices could occur. DEF crystallizes
as its water base evaporates. Pouring out liquid will not guarantee that no corrosive DEF remains in
the Prover Can. DEF must not be contaminated with Diesel fuel, contaminants, or other fluids or
materials. Such contamination can cause serious damage to vehicle catalytic converters.
CAUTION