Speedaire 1WD63 automatic tank drain

by Harry
(Maine)

I have a Dayton Speedaire 1WD63 7.5 HP compressor and the automatic tank drain seems to be discharging oily condensation but when I drain it using the tank drain valve that is not the case. Any thoughts into why the automatic tank drain would be discharging oily condensation.


Also the manual says you can adjust the length of the discharge time, do you know what the ideal setting would be? Thanks

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Bill says...

Harry, my experience has been that the auto tank drain is normally installed where the manual tank drain is, at the lowest possible spot on the compressor tank, so it can get all the water out.

Where is your auto drain in relation to the manual drain.

It should be the same water coming out of both drains, so I am as puzzled as you are.

In terms of best cycle time, it's a moving target, depending on when and how long you are using your air compressor each day.

If this my my shop, I would start by setting up the auto drain to run for 10 seconds every two hours. Watch the drain when it cycles. If, at the end of 10 seconds, there is still water coming out, increase that by a couple of seconds.

Ideally, the auto drain should run often enough, and long enough, that for the last couple of seconds of being open, all that is coming out is water mist, no liquid.

If it runs for five seconds with no water coming out, you may be running it too often, in which case, change the frequency.

Cheers,

Bill

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1WD55 Reset button keeps popping....

I just bought a brand new SpeedAire compressor 1WD55 5hp.....i have had the contection checked no prb there.....Not making noise....and not over heating.....still waiting for service/warrenty company to call back......any ideas
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Tell me please, as a comment here, what amperage your breaker / fuse is. This compressor pulls 14 amps when running, and I expect close to 30 amps on startup.

Bill

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Help with replacement parts for a Dayton 3z960

by Gordon
(Somers, CT, USA)

Hello to all...

I'm told the Dayton & Speedaire compressors are the same, just different name plates. I have a Dayton 3Z960 that was given to me by a friend. I was told the air pump works fine, but he had sold the motor off the unit a few years back along with the control box. I checked with Grainger and other sites about purchasing a new motor, control box and 6" double belt pulley and they can't help as the unit is not listed in their inventory...too old a unti.

Anyway, if somebody can tell me what motor, control box and where to obtain the 6" pulley for this unit that would work, I would truly appreciate it?

There isn't a lot of info on the unit other than it's a Dayton Model 3z960, 2 stage, 5hp, single phase compressor.

Best regards,

Gordon

Comments for Help with replacement parts for a Dayton 3z960

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Dec 09, 2013
Did you find parts?
by: Anonymous

Did you ever find parts for your Dayton 3z960? I would be interested in purchasing your pump if you choose to go a different direction.

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won't pump up higher than 150psi and it should go to 175psi

by bruce
(heath ohio)

i have a 4Lw38 and it blows off at 150 psi how can i fix it

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Bill says...

Hi Bruce. Could you be a bit more specific about what you mean when you say "it blows off at 150 psi"? Do you mean the pressure relief valve opens?

If it's a question of your compressor continuing to run and the air pressure in the tank doesn't rise past 150 and it should go to 175 PSI, then wander over to the Troubleshooting page and click on the link to the info about why a compressor won't build pressure, OK?

Cheers,

Bill

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speed aire compressor 3 hp 3 stage - how much cfm

speed aire compressor 3 hp 3 stage model 3z581 how much cfm

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Bill says...

Can't be sure as I don't have the specs. Check with Grainger and see if they do if you need an exact answer.

Rule of thumb... about 3-4 CFM of compressed air at 90 PSI for each HP of motor size.

Cheers,

Bill

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