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  #1  
Old 11-09-2005, 07:13 PM
saktate saktate is offline
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Location: New Orleans
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Change from gear oil to hyd fluid?

My Kubota L305 (30hp) manual shift tractor requires 8 1/2 gallons of 90 wt gear oil for transmission. I've added a FEL and grapple fork to the tractor just last week. Should I switched to hydraulic fluid or is the gear oil ok with these implements?
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  #2  
Old 11-09-2005, 08:41 PM
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Jason Rose Jason Rose is offline
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HUH? What does the tractors transmission have to do with the Hydraulic system??? Two completely seperate components...

Manual transmissions need what the book says they need in them.
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  #3  
Old 11-10-2005, 08:41 AM
saktate saktate is offline
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Implements do not have independent pump. Hyd pump for implements is tapped into trans system. Gear oil seems to be flowing well at this time. Implements working as designed, but not sure what the future holds for the life of the hydraulic pump. I got two different opinions from dealership.
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  #4  
Old 11-10-2005, 11:20 AM
rancherman84 rancherman84 is offline
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most newer tractors have a combined tranny and hydralic sump.
the rear end housing holds the fluid and the pumps take what they need.
as for the extra hydralic components you added,the need hydralic oil,not gear lube.
gear lube is way to heavy for use in hydralic systems.gear lube pumps hard when its warm letalone when it starts to get cold out.
sounds like your tractor should have hydralic oil in the sump,not gear lube.
is it a hydro,or gear drive unit?
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  #5  
Old 11-10-2005, 11:39 AM
saktate saktate is offline
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This Kubota is a 1985 model with a gear drive, manual trans. Will the trans suffer if I switch to hyd fluid?
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  #6  
Old 11-12-2005, 08:22 PM
rancherman84 rancherman84 is offline
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shoudnt as long as you use a high quality hydralic/transmisson oil.
but i guess i would read my operators manual to be sure which fluid you use.
it is possible that your tractor has two seperate sumps.
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  #7  
Old 11-12-2005, 08:26 PM
saktate saktate is offline
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Just ordered a repair manual and owner's manual..Thanks
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