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hydraulic parts...HELP

Printed From: Southern California Live Steamers
Category: Live Diesel & Electric Miniature Railroading
Forum Name: Diesel Locomotive Construction
Forum Discription: Discuss construction of diesel locomotives
URL: http://www.southerncalifornialivesteamers.com/forum/forum_posts.asp?TID=82
Printed Date: Mar 18 2019 at 2:26pm


Topic: hydraulic parts...HELP
Posted By: lasvegas
Subject: hydraulic parts...HELP
Date Posted: Feb 20 2010 at 10:40pm
Hello,
 
   I was wondering if anyone can help me. I would like to scratch build a diesel loco but am not sure about the drive unit. Does anyone have or know the part numbers for the Eaton pump and motors on a mountain car or a rail systems setup?  And I also have found a few things online stating that the forward reverse valve is from a log splitter???



Replies:
Posted By: tom d
Date Posted: Feb 21 2010 at 9:25am
There is a Yahoo group called "Livediesel" and there is a lot of info on their message Board. it is a good site and if you ask something on it you don't get reamed out by some nuts like some other Board's.
 
I just replaced the pump and valve on my backyard rails GP60. I got them from Northern Tool. They have a web site but their catalog is better. They are also a good place to get seats for your riding car.
 
On the pump, the size of pump is based on the size of the motor you have to run it, but there are only 3  sizes that get used most of the time. An 11 GPM, 13.6 GPM and a 16 GPM. I used a 13.6 GPM #1053-2001 as it was the biggest one  you can put on a 8 Hp motor. You will need to get a mounting bracket and coupler to fit it to your motor.
 
On the valve I used a 2 way détente valve FOR AN OPEN CENTER SYSTEM it has a spring back to neutral which I have fond works good so you don't have a run a way. The pump will come with info telling you how to plumb the system for your loco. I used an in-line hydraulic screen as I tried a fitter and it seemed to me to slow the flow down too much. 
 
The Eaton pumps work good on the smaller locos but they cost more and run hot. If I was going to build a new loco I would go with a battery system as the costs are close to the same but you don't get the lawn mower noise and smell. The ones I have run can pull a ton. are easy to use, and can run for a long time on a charge.
 
tom d


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Posted By: lasvegas
Date Posted: Feb 22 2010 at 5:18pm
Hi Tom,
 
  Thanks for all the great input! I looked at Northern and that's the way I will go on the pump. What motors do you recommend me getting from Northern? This is what I came up with...
Northern Tool- Item# 1040 Dynamic Low Speed, High Torque Hydraulic Motor — 11.85 GPM, 2050 PSI $179.99  (times 2..one for each truck) and ...Northern Tool- Item# 2020 Log Splitter Detent Valve $79.99.   Northern Tool- Item# 1053 Haldex Hydraulic Pump — 13.6 GPM, 2-Stage, Model# 1001506  $149.99
 Let me know what you think about this set-up.  Thank You


Posted By: tom d
Date Posted: Feb 22 2010 at 9:15pm
Looks good to me, keep us all updated on your project, tom d

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