Topping up air suspension

[BrittanyLyn]

Hi, the air suspension gauges on my Fiat DuRay to show just under 1bar so I'm trying hard to find out how to top them up . All the info on google seems to be about fitting them. Concerned I don't want to damage them which the handbook says if they get below 0.8. I've arrived in uk from home in france so only have normal tool kit. Any advice on exactly how would be such a help. Thanks.

 

[BrittanyLyn]

Ps autoincorrect.... Fiat Ducatto !

 

[brynric]

Handy information in this thread:

Air suspension the gauges have changed?​

its in the list below.

 

[Manic]

Some different systems about, a photo would help.

 

[BrittanyLyn]

Will a small bicycle hand pump work? Im worried about emprting them (two gauges one for each side)

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[BrittanyLyn]

 

[brynric]

Any pump with a suitable valve (Schrader) should do. We use the 12v tyre inflator. It only takes a few seconds.

 

[Manic]

Will a small bicycle hand pump work? Im worried about emprting them (two gauges one for each side)

Yes I use a bicycle hand pump or my tyres pump

 

[IRHP]

View attachment 533342

You won't empty them, just imagine them as bike tyres. Bicycle hand pump will do it but it gets a bit harder above 30psi. A foot pump or electric inflator will do it. The valves are below the dials.

 

[BrittanyLyn]

Yay thanks everyone. My mini bike pump did it no problem so 1.25 both sides and I will know what to do to use them as needed.

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[The Old Man]

I use a bike stirrup pump, it takes just two stokes to bring it up to the line.

My system has three valves.

The middle valve is the 'Input',attach the pump and work away until both gauges are above the maximum.

Disconnect the pump and then, one at a time, use the other valve, 'Output' to release the excess pressure, repeat until satisfied.

 

[poppycamper]

BrittanyLyn....I Don't have air suspension... However this post interests me.
I Assume one gauge for each unit on rear axle.
What was pressure before you got concerned..
Does air suspension (as does air con) naturally over time lose its pressure.... if so I can understand your gauge readings...
HOWEVER if not you MUST have a leak (or 2) and I find it too big a coincidence (Don't believe In them) that both gauges are reading near enough identical pressures.
Your question was how to recharge.... which has been answered HOWEVER I feel you may possibly need to investigate more.

 

[The Dotties]

poppycamper
Think of them as tyres. They will slowly lose pressure over time. Mine need a quick couple of pumps a couple of times a year. The gauges and connectors are in the hab behind the seat. Easily done.