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Lesser Known Classics Discussion Forum

Re: Earthmaster Hydraulic Pump

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Author  [Modern View]

04-23-2012 06:35:05

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I'm a retired Railroad Locomotive machinist/
mechanic. But I was an Aircraft Hydraulic
mechanic in the military, and have "moonlighted"
in that profession for 40 years. I have never
heard of a "Earthmaster" hydraulic I
believe that someone else made a pump for the
Earthmaster brand. I've got dozens of parts books, for virtually every brand of hydraulic
pump ever made,(though I specialized in Vickers)
I may be able to help..but you'd have to identify
the original make and model of the pump. First..
is it a gear, piston, or vane type of pump ??

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Ian Beale

05-13-2012 03:20:56

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 Re: Earthmaster Hydraulic Pump in reply to greygoat, 04-23-2012 06:35:05  

Tried to send you an email but the protectors won't allow, so this is off thread.

Any info on shaft seals for a Hydreco 1512A13B12C7?

Email reply might work, depending on rules?

Thanks in anticipation

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oliver fan

04-23-2012 14:10:01

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 Re: Earthmaster Hydraulic Pump in reply to greygoat, 04-23-2012 06:35:05  
The tractor and the hydraulic valve were made by Adel Corp. out of Los Angeles, Calif. I think they also made the pump.

The Earthmaster part number is 18318 and the valve part number is 18583. I don't know if the Adel numbers are the same.

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04-23-2012 08:04:50

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 Re: Earthmaster Hydraulic Pump in reply to greygoat, 04-23-2012 06:35:05  
It has no markings other than 1 casting number (which I don't have with me right now). It is a gear pump.

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04-23-2012 10:39:27

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 Re: Earthmaster Hydraulic Pump in reply to patsdeere, 04-23-2012 08:04:50  
Pat the Hyd pump is an Adel the Adel numbers are on the CS end 42315-13 (a Garlock 122 or 140 may work) on the outer hand crank side the Adel number is 42315-14 another number I see is 42302-11. Here's a link to a parts print:

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04-23-2012 10:41:37

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 Re: Earthmaster Hydraulic Pump in reply to MNGB, 04-23-2012 10:39:27  
You should be able to go to most any bearing supply and have them measure the ID the OD and the width of the seals an get a replacement.
GB in MN

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Gene Davis (Ga.)

04-25-2012 19:17:03

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 Re: Earthmaster Hydraulic Pump in reply to patsdeere, 04-23-2012 08:04:50  

Some years ago, I had the local bearing house gurus translate the seal I.D. and O.D. into a usable set of numbers and they are as follows.

National--471264-- .625 ID X 1.25 OD X .250 thick.
National--470954-- .750 ID X 1.25 OD X .250 thick.

One of these seals is slightly thicker than the OEM seal, but it worked fine and moved the wear groove to a different spot on the shaft.

Hope this answers your question. Thanks for asking this is what the ERT does.

Gene Davis Tennille, Ga.

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