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Old 12-11-2015, 06:50 AM   #1
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Post Air tanks - periodic air bleeding/maintenance

Air tanks, located under the chassis between the front wheels, need annual or periodic maintenance. Water or condensation buildup within the tanks can be bleed out by releasing/pulling the 3 lanyard cables, located within the front wheel wells.
i found mine today - two on the passenger side, and one on the driver side, which come thru the chassis as a cable with a loop end - you have to really get down and around your tires to find them - or you might also take your front jacks all the way up and get to them much easier.
A slight pull of each cable lanyard will allow air and any water to escape for 5 to 10 seconds.
Freightliner suggests pulling these periodically to allow any water buildup to be released, usually every 12 months or sooner.

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Old 12-11-2015, 07:19 AM   #2
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You should also bleed the air pressure down (pump brakes) to 60 psi or less before pulling the lanyards. This is to keep the water at the bottom of the tank where it will be expelled.

Mike & Sue Jones
Venetian A40, formally Palazzo 35.1
Jeep Wrangler Unlimited Sport S
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Old 12-11-2015, 07:28 AM   #3
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Good advice, thanks!
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maintenance, tank

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