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7 Transmission Repair
7B Eaton 750 / 751
EATON MODEL 750, 751
HYDROSTATIC TRANSAXLE
General Notes
The Eaton models 750 and 751 consist of a radial ball
piston pump and two radial ball piston motors. The
motors drive double series planetary gear sets which, in
turn, drive the axles.
The level of cleanliness maintained while repairing the
transaxle could affect its performance. Work in a clean
area. Before removing the transaxle from the tractor,
steam clean or pressure wash all debris from the sur-
rounding area. After disassembly, wash all parts with
clean solvent and blow the parts dry with air. Inspect all
mating surfaces. Replace any damaged parts that could
cause internal leakage. Do not use emery paper, files, or
grinders on finished parts.
!!!!!Warning, compressed air is dangerous etc etc etc
To ensure correct installation on the Model 750, the axle
housings are marked with the letters A and B. Each side
of the housing assembly is also marked with an A or B.
The axles on the Model 751 are identical. Make sure the
axle housings are correctly assembled with correspond-
ing letters on the housing assembly.
NOTE: Whenever a transaxle is disassembled, our ser-
vice policy is to replace all seals. Lubricate the new seals
with petroleum jelly (Vaseline) before installation. Use
only clean, recommended fluid on the finished surfaces
at reassembly.
Figure B–1. Eaton Model 750 Hydrostatic Transaxle
Figure B–2. Eaton Model 751 Hydrostatic Transaxle
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