Recharging AC

[rpraymond]

I have a 2006 L3430HSTC. The AC still works but could use to be topped off. I've used AC Pro on cars before but has anyone used it on their tractor and if so what's the right fitting?
Thanks

 

[number two]

AC Pro can be used on your tractor.
The fittings are the same as automotive systems.
The refridgerant is added through the low side port.
Low and high side fittings are different sizes to avoid mix-ups.

Are you sure you need more juice?
On my cab tractor,the cab manual shows a sight glass on the receiver/dryer that shows the state of charge.
With the AC system operating,there will be very few bubbles in the sight glass window if the charge is correct.
Should there be lots of bubbles in the sight glass,the system is low on charge.
Sight glasses are seldom used these days,but it would be worth seeing if you have one before you just add more refridgerant.
Good Luck!

 

[KennyV]

Watch the High side as you charge, do not overcharge.

 

[Tractor Seabee]

There are a lot of threads here on the subject. Consensus; do not do this stuff unless you are a trained technician. Over charge is as bad as undercharge and it it needs refrigerant you have to find and fix the leak first. The systems are made to be gas tight.

Ron

 

[Tx Jim]

Watch the High side as you charge, do not overcharge.

I would also advise to only add refrigerant while monitoring high side pressure. A dirty condenser or cab filter can cause same symptoms as low refrigerant charge.