Hydraulic Fluid Leaking from res. Cap?

/ Hydraulic Fluid Leaking from res. Cap? #1  

gt14

Silver Member
Joined
Jul 19, 2005
Messages
163
Location
Aumsville Oregon
Tractor
Yanmar YM146 YM165D
I have hydraulic fluid leaking and I believe it is coming from the pin hole in the reservoir fill cap. I noticed the hole when I tried to figure out where the leak was coming from. Has anyone else every had something like this happen. It squirts out every few minutes not a steady stream. I did recently drain the hyd. tank and unhook the lines. I don't know if air in the system is the cause or something else. Do these systems need to be bled like brakes?
 
/ Hydraulic Fluid Leaking from res. Cap? #2  
No, they do not need to be bled, they are self bleeding.
The only time I have seen oil squirt out that hole is when the tank is over filled. The oil level should be down about 3", there is a ring of holes in the filler neck that you can see, if it is not over filled. If you can't see the ring of holes, it is too full.
 
/ Hydraulic Fluid Leaking from res. Cap?
  • Thread Starter
#3  
Thank you the tank is overfull. I will take a little out.
 
/ Hydraulic Fluid Leaking from res. Cap? #4  
I have a ym2000 and had the same problem. I found that the case vent was clogged. It is on top of the diff. case under the seat, a +-1/4" pipe bent in a U shape. Just turn counter clock wise to remove and cleared the clog.

Hope this helps.
 

Marketplace Items

Unverferth Lift Assist Wheels (A65640)
Unverferth Lift...
Deutz 4-Cylinder Air-Cooled Industrial Diesel Engine (A63689)
Deutz 4-Cylinder...
2010 John Deere 1770NT Planter (A63109)
2010 John Deere...
Invoices (A65640)
Invoices (A65640)
Landhonor FW-13-15000G, Skidsteer Mount Winch  (A62679)
Landhonor...
2019 ALLMAND MP65-8E1 PORTABLE (3) PHASE GENERATOR (A63276)
2019 ALLMAND...
 
Top