Originally Posted by GMLC
Two hydro filters I believe and remote hydro tanks are reservoirs that help with cooling.
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The plastic Tanks shouldn't have but 1/2 inch of hyd oil in them. They are just for maintaining the proper oil level. The cooling fins on each unit do most of the cooling. Doesn't the Gravely use the Hydro Gear 5400 transaxles like the Outlaw?
2013 Exmark Pioneer S 60" Ultracut (Review with pics) http://www.lawnsite.com/showthread.php?t=410996
2010 Badboy Outlaw 6100 31 KAWI
2008 Exmark Lazer Z AS 60" U/C 28 Kawi
2000 Exmark Lazer Z 60" L/C Kawi 4100 + hrs strong