mf 135 hydraulic problems

[Anonymous-0]

have a 1970 135 deluxe perkins gas with ipto and multi power. I have had the hydraulic system work on 2x at high cost so i thought I would try myself. have shop manual here are the problems lift arms pulsated when they go up, pto stops working when it gets warm and multi power does not function corretily have cleaned filter and changed oil. any help would be great before i go at it

 

[Anonymous-0]

MP and IPTO clutch pressure is controled at MP shift valve block, may have test port next to IPTO shift lever. Can be single stage or two stage pump if tractor has aux hydraulics, each has different PSI spec.

 

[Tracy Ellis]

Hi, my 135 used doing something similar, pulsing and very weak when lifting. In the service manual it says the pulsing can be caused by a sticking valve in the pump, when I disassembled mine I found 3 of 4 rings were broken on the pistons in the pump. I purchased a rebuild kit, replaced all the orings, assembled with fresh oil. My hydraulics havn't worked this well in years.

 

[Anonymous-0]

i will test the pressure but i don'tunderstand the connection between all the systems, mp-ipto-
lift arms let me of any ideas i will let you know after test this weekend

 

[Anonymous-0]

did have remotes but where taken off years ago but I tried to take of cap on rocker cover to check on tube and oit started coming out when i first lifted. tractor had not been started for day?? any ideas going to pressure test tis weekend