Just head back to Napa and pick up a Jug of Premium Winter Grade low viscosity hydraulic oil . This will most likely solve your problem , assuming your pump , relief valve and directional valves are mechanically sound . Depending on usage and your region filter and fluid should replaced every 2 YRS , due to contamination . Hope this is some help !
No ice in it I ended up punching some holes in the filter to get what I needed to split split and worked fine. I think I need to find a less fiber count filter. It uses a 1551 filter.
Good find & fix in a pinch , however the filter may have been fouled as I previously mentioned . Otherwise. oil viscosity thickness or water entrainment on older oil can contribute to the inlet icing. and sluggish performance that another member advised ?
Choppy most commercial 15 to 35 ton hyd. splitters require no more than 5 gal. reservoirs that I have worked on . If you have a larger capacity tank then common sense dictates contamination from water entrainment , dirt & general debris is less as would be service intervals . A Wix filter and. 5 gal drum of general utility 46 hyd. oil will run you under $50 . ATF . Will add 25% to the overall cost if cold climate usage is required . A small investment in ensuring protecting the system internals long term . I also advised dependant on use (hours) and area temperature swings ( thermal cycles) this service frequency could vary . I have routinely seen milky looking oil in reservoirs within a 2 yr period .
I built the splitter and put the filter on the suction side because it was much easier for me do to space
J , if bypass your referring to a system pressure relief valve , they are installed within the static pressure side of the system for a over pressure situation to protect valve. & cylinder o-rings and cyl.seal components . This rel.valve dumps back to the oil reservoir in such over pressure instances . Also a conventional spin on oil filter is normal on the return of these splitters & micronsized to the oil viscosity and flow requirements of the unit . Often within the oil tank for protection although external mounting is often also used provide a cooling effect and easier servicing .
So your point is that your splitter has a 50 + gallon oil reservoir ? lol.
Idk what micron rating all I know is it’s a Napa number 1551 and they told me it was ok for on suction side. I don’t use a bypass beings the valve has a bypass in it. Iv ran the splitter down to 15-20 degrees the day I was trying to use it was nearly zero
Rather apparent that the high viscosity or combination of too small micron sized filter impeded oil suction flow causing your situation from what you have indicated (punching holes) . If you continue cold weather usage suitable atf oil and proper filtration placement is required Motorhead !
Another reason to install the properly micron sized filter on the return to tank as advised by Mr Henderson and Ray, is to prevent starving the hyd. pump due to filter restriction fouling as it does its job , that may contribute to pump cavitation . Which can elevate oil temps ( thermal breakdown & foaming ) that increase potential for pump damage from air entrainment .
Bad practice for numerous reasons Bud !
I have always used Shell Tellus Hydraulic within our Tractor and Loader Systems . Previously Tellus 46 for 10+ yrs more recently Tellus 22 for better Performance in Winter conditions . Actually have just put 22 in my Splitter this yr , since I by it in 55 gal drum @ significant savings for our fleet usage .
