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About strainers, Def strainer, Servicing strainers – Gasboy Atlas Start-up User Manual

Page 160: Fer to

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Page 6-40

MDE-4334D Atlas™ Start-up and Service Manual · July 2013

Hydraulic/Mechanical Components

Filters and Strainers

Service Tips

• Only hand-tighten the filter. Do not use a filter wrench to tighten.
• A light coating of oil on the gasket helps the seal to seat properly and allows for easier

release at the time of removal.

• Use of a filter and strainer is required to ensure warranty. Units that do not use filters will

commonly experience reduced life of hydraulic components. Use of only strainers for very
cold weather and diesel fuels is acceptable. However, filters must be used when warm
weather returns. The use of only a strainer will not ensure long life of hydraulic
components.

About Strainers

Strainers are installed between the manifold and filter to trap larger particles leaving the fine
filtering to be done by the filter element. The strainer helps to prolong filter life by preventing
premature filter clogging. Strainers can also help reduce the frequency of filter change,
resulting from fungus and slime conditions. Always reinstall or replace the strainer.

DEF Strainer

Filtration is required to protect the nozzles and valves. The earlier versions of the dispenser
relied completely on a filter tank system. The later versions of the dispenser have a strainer.
The 100-micron strainer and assembly is compatible with DEF. The strainer must be cleaned
after the first air purging and calibration to ensure good flow rates. Refer to

“Purging Air from

System”

on

page 6-9

.

Servicing Strainers

This section explains about servicing the strainers.

Cleaning/Replacing Standard and Hi-flow Filter Strainer

Figure 6-22

shows the standard and Hi-flow filter and stainer assembly.

Figure 6-22: Filter and Strainer Assembly

Manifold

Strainer with
cupped side up

Filter and Gasket

Service Tips

• Strainers commonly help reduce the frequency of filter change.
• Strainers can be cleaned with denatured alcohol. Replace the strainer if it is damaged or

partially clogged and not cleanable.

• Always check/clean the strainer, when replacing a filter.
• Ensure that you note the orientation of the tabs when reinstalling the strainer

(see

Figure 6-22

).