Hydraulics question

OlFerguson

Member

Equipment
4440, 1120D
Jun 1, 2017
192
11
18
Canada
I checked my hydraulic dip stick on my tractor and noted the milky hydraulic oil in it so I plan on flushing it all out and changing my filters and replacing the oil. How does water and contaminants get in there ?? Any ways to prevent it ? Thanks
 

85Hokie

Moderator
Staff member
Lifetime Member

Equipment
BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
10,770
2,582
113
Bedford - VA
I checked my hydraulic dip stick on my tractor and noted the milky hydraulic oil in it so I plan on flushing it all out and changing my filters and replacing the oil. How does water and contaminants get in there ?? Any ways to prevent it ? Thanks
You defiantly have water in there, not good!

Is your machine left outside? If so - various ways moisture can get in there.

If not left outside......then it must be condensation and this too would be a problem, but much harder to get into the works, unless the dipstick was left out, or the suction line had a small crack in it.

Need to drain, and then maybe fill and DRAIN again, not good on the pocketbook for sure! Change filter both times too!
 

JerryMT

Active member

Equipment
Kubota M4500, NH TD95D,Ford 4610
Jun 17, 2017
528
156
43
The Palouse - North Idaho
I checked my hydraulic dip stick on my tractor and noted the milky hydraulic oil in it so I plan on flushing it all out and changing my filters and replacing the oil. How does water and contaminants get in there ?? Any ways to prevent it ? Thanks
Usually condensation.It also indicates low usage. If you use you tractor for any length of time, the transmission oil will warm up and water will evaporate Damaged boots at the bottom of the shift lever(s) can let water in also.
 
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