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Charging scales???

daman on Mon June 14, 2010 10:06 AM User is offlineView users profile

Looking to pick up a scale witch one should a guy get i see there's different ones,there's one's that compute the charge you have hoses running in and out of the scale must shut off automatically when weight is met and then there's just a plain scale for weights.

seems like the compute scale you would need extra hoses and the loss of freon would be higher disconnecting things,,any thoughts?

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'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

GM Tech on Mon June 14, 2010 10:18 AM User is offline

Modern hoses have check valves in them-- you don't lose any refrigerant- I recommend you use those......

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

daman on Mon June 14, 2010 10:38 AM User is offlineView users profile

Quote
Originally posted by: GM Tech
Modern hoses have check valves in them-- you don't lose any refrigerant- I recommend you use those......

Right, but what scale do you prefer tech?


-------------------------
'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

70monte on Mon June 14, 2010 9:46 PM User is offline

I would also like a recommendation for a set of scales because I plan on getting one in the near future. I have a small digital scale that I try to use for the cans but it always turns off after a few minutes and its never accurate with the line attached. I'm going to try and buy a bigger tank of refrigerant to use in the future.

Wayne

daman on Mon June 14, 2010 9:58 PM User is offlineView users profile

I have a scale now works good for the cans but once I'm out of my stash of cans I'll go to my 30lb ers and i'll need it for that.

-------------------------
'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

mk378 on Mon June 14, 2010 10:19 PM User is offline

The Mastercool scale is nice for my DIY purposes. It has a 3 hour timeout before turning off by itself. I just zero it and watch for the weight to go negative by the proper amount, no need really for the fancy features. It only resolves to 0.5 oz though that is OK for A/C work. The unit is built nicely and seems like it would stand up to a little rough handling in a garage environment. I think GM Tech uses a unitized recover / evacuate / recharge machine. Those are worth the 4 figure price tag if you're doing one car after another all day.

GM Tech on Mon June 14, 2010 10:21 PM User is offline

I use Robinaire scales- when I need to --I use my ACR4 machines most of the time-- they will really spoil you- recovery, evac, and recharge- just punch in the charge weight you want in the system

-------------------------
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

daman on Mon June 14, 2010 10:28 PM User is offlineView users profile

Quote
Originally posted by: GM Tech
I use Robinaire scales- when I need to --I use my ACR4 machines most of the time-- they will really spoil you- recovery, evac, and recharge- just punch in the charge weight you want in the system
Yea thats my dream but for now a scale will have to do,lol



-------------------------
'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

TRB on Mon June 14, 2010 11:14 PM User is offlineView users profile

We use the Mastercool model in our shop.

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When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

daman on Tue June 15, 2010 9:11 AM User is offlineView users profile

This one Tim?

i like the alarm feature.

-------------------------
'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

Edited: Tue June 15, 2010 at 9:11 AM by daman

TRB on Tue June 15, 2010 9:27 AM User is offlineView users profile

That is the one we use.

-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

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