How to service the hydraulic transmissions on a Bad Boy zero turn mower. These methods can be applied to any mower with Hydro-Gear ZT-3400 and alike.Please.. Bad Boy ZT Elite Series ZT 4800 48˝ 725cc Kohler ZT 5400 54˝ 747cc Kohler ZT 6000 60˝ 747cc Kohler ZT 4800 48˝ 726cc Kawasaki. Oil Hydraulic Oil 10W-30 Motor Oil - Bad Boy Syntthetic Blend Motor Oil Recommended 20W-50 Motor Oil - Bad Boy Hydrostatic Oil Reccommended (Approximatley 2.5 Quarts/Transaxle)
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