Hydraulic Fluid Leaking from res. Cap?

   / Hydraulic Fluid Leaking from res. Cap? #1  

gt14

Silver Member
Joined
Jul 19, 2005
Messages
162
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.
 

Tractor & Equipment Auctions

2019 MACK GR64F TANDEM AXLE CEMENT MIXER TRUCK (A52577)
2019 MACK GR64F...
2014 INTERNATIONAL DF677 (A52472)
2014 INTERNATIONAL...
2008 Chev Impala (A51694)
2008 Chev Impala...
2014 Ford Fusion Sedan (A50324)
2014 Ford Fusion...
2015 Nissan Frontier S Crew Cab Pickup Truck (A50323)
2015 Nissan...
2015 Ford Escape AWD SUV (A50324)
2015 Ford Escape...
 
Top