In this forth and final video of the air conditioning series we combine all the previous components introduced for our new R134a refrigerant recovery machine system into an actual recovery operation. The particular brand and model equipment shown is the prosumer / entry level shop gear Mastercool 69000 recovery machine paired with the Mastercool 69500 RecoveryMate accessory which provides Polyalkylene Glycol (PAG) oil separation, R134a refrigerant filtering and drying, and R-134a refrigerant embedded moisture detection. However, the basic procedures and AC information shown would be applicable to most other R-134a refrigerant recovery machines from other brands.

We cover in this video:
- Hookup of R134a service port couplers and vacuum pump ball valve
- Recovery of the R134a refrigerant charge in the vehicle
- Purging the recovery machine or residual R134a refrigerant
- Performing a post-repair vacuum draw down on the vehicle AC system

The eBay and Amazon search links below are paid links, for which I may be compensated and earn a commission, if you choose to buy the parts and tools shown in this video thru them:

If you are looking to purchase your own Mastercool 69000 refrigerant recovery machine: https://ebay.us/y4FPmX and https://amzn.to/3qEL5N4

For the Mastercool 69500 refrigerant RecoveryMate accessory: https://ebay.us/EHrNuo and https://amzn.to/3lUfnYH

If either of the valve caps are missing: https://ebay.us/w2RpLw and (high side cap only): https://amzn.to/3n1Ysph

If you are looking for a nitrogen cylinder regulator, I have had good luck with the imported model BETOOLL one you saw in the video: https://amzn.to/3tFCieG You have to add a 1/2" ACME hose adapter to it and I used a Mastercool 82634 (with integral Schrader valve) that you can find at https://amzn.to/2PhuLUh or https://ebay.us/mV5fnE

And if I've saved you some $$ here, consider some coins for the coffee tip-jar! https://ko-fi.com/drshock

Chapters
0:00 - Procedure overview
0:30 - Vehicle connections
1:40 - Initiating R134a Recovery
5:05 - PAG oil recovery considerations
7:20 - Recovery machine purging
9:11 - Post-repair vacuum draw down
12:10 - Potential leak considerations

#drshock #autoac #carac

Disclaimer: DrShock, the alias for the human content creator for this YouTube channel, is not responsible for any damages, injuries, losses, or liabilities associated with any repairs, upgrades, or maintenance performed on yours, or any other, vehicle whatsoever. No warranty, express or implied, is made as to the accuracy or completeness of any information provided within this channel. Viewing and using the “as-is" information of this channel is totally at your own risk. Always wear personal protection equipment and follow appropriate vehicle manufacturer service manual guidelines with original manufacturer parts only when performing any repairs, upgrades, or maintenance upon any vehicle.