Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

MF50 First problems, Power steering.


  • Please log in to reply
3 replies to this topic

#1 coldone OFFLINE  

coldone

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 839
  • 1,631 Thanks
  • 1,668 posts
  • Location: Central NC

Posted November 24, 2010 - 04:18 PM

I got to spend somemore time today with daddys new toy. Put a basic carb kit in and changed the plugs. She started right up! :dancingbanana::dancingbanana:

I noticed the other day on our virgin flight that the steering was very difficult. I checked the fluid today and it was at the full mark. I diceded to Play, I mean work the tractor, so out into the woods we go. I do a little clean up of a fallen hickory tree. After about 5 minutes my arms are give out from fighting the steering.

The steering wheel will turn fine for about a half turn then its both hands and my back doing the work. I also noticed that fluid was being forced out of the power steering resaviour. A gasket has been installed in the top of the res and there is a 5/16 bolt holding the top down. There is a filter in there but it looked ok.

So is my steering pump having problems or do I just need to bulk up?

Here are some pics of the pump.

Attached Thumbnails

  • DSCF2162.jpg
  • DSCF2158.jpg
  • DSCF2163.jpg
  • DSCF2157.jpg
  • DSCF2155.jpg
  • DSCF2159.jpg


#2 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,334 Thanks
  • 28,642 posts
  • Location: N. W. PA

Posted November 24, 2010 - 06:13 PM

I have an I&T manual for that tractor, it's a copy, actually... I'll try to scan it in tomorrow?

Under "Loss of Power Assistance"

binding/worn/bent mechanical linkage
Insufficient Fluid
low pump pressure
faulty or improperly installed valve thrust bearing
valve thrust bearing nut not tightened correctly
sticking or binding spool valve
faulty valve plungers or springs
damaged tubing/hose
pump to valve hose lines reversed
wrong fluid in system

internal leak in valve

it mentions a check valve in the troubleshooting list, but I'm pretty sure the MH50 & MF50 didn't have those check valves. It's why they say not to turn the wheel when engine isn't running.
It warns against turning the steering without engine running (fluid loss)

I'd start by draining the system completely and refilling with ATF type A (as spec'd in the manual) Total capacity is 2/3 qts

I can't express how dangerous this system is without the right test equipment.
You're dealing with pressures in excess of 1000 lbs.
Please be careful.

The ones in Italics are where I'd start looking. Hoses are a visual. I will try to get decent pic of that page specifically.
It's at this point, I need a serial #... they used 2 different PS valves in those, pre #x, and post #x.

Edited by MH81, November 24, 2010 - 06:19 PM.

  • NUTNDUN and coldone have said thanks

#3 coldone OFFLINE  

coldone

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 839
  • 1,631 Thanks
  • 1,668 posts
  • Location: Central NC

Posted November 24, 2010 - 06:43 PM

Here is the serial and i cant thank you enough.

Attached Thumbnails

  • DSCF2165.jpg


#4 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,334 Thanks
  • 28,642 posts
  • Location: N. W. PA

Posted November 25, 2010 - 10:54 AM

got all 78 pages into one document:
http://gardentractor...50-shop-manual/

Edited by MH81, June 01, 2013 - 10:10 PM.
Updated manual length





Top