trim pump runs but no up or down

kinger952

Petty Officer 3rd Class
Joined
Jun 9, 2022
Messages
78
pump runs in both directions -- up and down but nothing happens as far as raise or lower - never had this happen before possible sensors ? not sure - any suggestions on where to start looking going to try to bleed this am but dont think that will help ? could be wrong
 

tank1949

Lieutenant Commander
Joined
Apr 4, 2013
Messages
1,893
pump runs in both directions -- up and down but nothing happens as far as raise or lower - never had this happen before possible sensors ? not sure - any suggestions on where to start looking going to try to bleed this am but dont think that will help ? could be wrong
pull off rams, disconnect fluid lines and see if you can compress piston. Piston/ram may have locked up due to corrosion. I had to totally rebuild all 4 of mine.
 

kinger952

Petty Officer 3rd Class
Joined
Jun 9, 2022
Messages
78
That just might be it.
I've took rams off unit and then bled system and not a thing. Now I'm going to pull end caps and see inside
 

QBhoy

Fleet Admiral
Joined
Mar 10, 2016
Messages
8,342
Yeah. Take the hyd fittings off the end of the ram (carefully, they can suffer corrosion at the inserts into the Ally). See if you can move the rams and see if the pump pumps oil out them open ended. The pump may be relieving and returning to tank if the rams are solid.
 

kinger952

Petty Officer 3rd Class
Joined
Jun 9, 2022
Messages
78
Took rams apart like new no corrosion !! Got a hold of a pump I'm thinking weak ? With lines off and hit pump juice pours out up and down so trying this
 

Drivewayboater2

Petty Officer 1st Class
Joined
Aug 21, 2019
Messages
334
While the cylinders are apart you may want to consider rebuilding. Inexpensive and a great sense of security knowing they are rebuilt. Just my 2 cents… hope you find the issue. Good luck
 

kinger952

Petty Officer 3rd Class
Joined
Jun 9, 2022
Messages
78
While the cylinders are apart you may want to consider rebuilding. Inexpensive and a great sense of security knowing they are rebuilt. Just my 2 cents… hope you find the issue. Good luck
That don't have a scratch inside and o-rings are like NEW !! I'll wait for that. Thanks
 
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