Question Help identifying older Mako 3 stage

[Neuport]

I recently bought this compressor along with a pile of other gear. The seller bought it from a fire department several years ago when they upgraded. The name plate is missing the portion with the model number. Any help identifying it is greatly appreciated.

 

[rhwestfall]

Start here looking at the schematics..

K13, K14, K15, K16, K20, K25.20

www.bauer-kompressoren.de

MAKO used Bauer blocks....

 

[rhwestfall]

There will be numbers ion the block and heads to give you clues...

 

[windyairman]

The block is a very old Bauer K14
Look on the german bauer site you will find parts list

 

[Neuport]

Thanks for the replies. I forgot to subscribe to my on post so just now seeing the responses.

 

[Neuport]

Actually, I have all the notifications on but am not receiving notices of new posts. Surely user error.

Turns out it is a 4 stage k14-85 block. I couldn’t see the fourth cylinder until I unloaded it from my vehicle. I had downloaded the Mako Universal manual but your suggestions and diagrams were helpful in positively identifying the block. Thanks again.

 

[CraigAClark]

The K14-85 has been discontinued for a long time.

 

[Neuport]

The K14-85 has been discontinued for a long time.

No doubt. It looked like an antique when I got it so I expected it was out of production for many years. But it was supposedly being used before I bought it. I’m working my way through it cleaning it up and following the maintenance manual to check it over. It’s an interesting project. I wasn’t in the market when I bought it so I’m in no hurry. It was included with a lot of other gear.

 

[CraigAClark]

No doubt. It looked like an antique when I got it so I expected it was out of production for many years. But it was supposedly being used before I bought it. I’m working my way through it cleaning it up and following the maintenance manual to check it over. It’s an interesting project. I wasn’t in the market when I bought it so I’m in no hurry. It was included with a lot of other gear.

If the final stage discharge valve is the 7780 as I suspect, they have been discontinued, but I know someone in Texas that has several new ones he obtained when Mako sold off their Bauer parts inventory after they switched to Compair/Reavell.

 

[Neuport]

If the final stage discharge valve is the 7780 as I suspect, they have been discontinued, but I know someone in Texas that has several new ones he obtained when Mako sold off their Bauer parts inventory after they switched to Compair/Reavell.

Thanks Craig, good to know. I haven’t gotten that far yet and don’t even understand how often those need to be replaced.

I have not powered it on. The compressor seems to build some pressure with just turning it by hand and water accumulates in the separators any time I rotate it for a while. Don’t know if the water was already in the system or if it can condense from just a few hand revolutions.

I did a first pass getting the caked on grease off so I could handle the compressor more easily. I have inspected and cleaned the first stage valves. The valves and cylinder looked much better than I expected. I did a thorough clean of the 2 intermediate separators; nasty! I took off the inter-cooler(?) coils and flywheel to better get at the rest of it. While they are off I went ahead and flushed the lines. The longest, smallest diameter circuit was so clogged I couldn’t get any 100 psi air through it. I turned my shop air up to 140psi and gently heated the coils until air started to trickle through. Then I pushed small boluses of water based degreaser through with air until I could finally circulate it continuously with a low pressure water pump. I’ve got all the lines pretty well flushed now and a lot of junk came out of all of them.

Next up is to finish the degrease on the rest of the head, inspect the rest of the valves and cylinders, reassemble, and tackle the electric and mounting base. Those should just need a bit of tidying up. If I get that far I’ll power it up. If that looks good I’ll next tackle the two stage final filters. Good thing I’m in no hurry.