Simplicity LTH series Service Manual page 218

7 Transmission Repair
7D Hydro-Gear 0750 / 0800
24. Remove the motor block assembly from the motor
shaft and inspect for unusual wear or damage. The
pistons should fit with very little side clearance in the
block bores, but must slide freely.
NOTE: The correct bore diameter for the block is 0.6776"
to 0.6784" and the pistons should be 0.6767" to 0.6770".
25. Remove the motor shaft, washers and bypass plate
from the center section and inspect for unusual wear
or damage.
NOTE: Be careful not to loose the bypass plate
26. Inspect the center section running surfaces for
unusual wear or damage.
27. Remove the pump block assembly, block thrust
washer and spring from the input shaft and inspect
for unusual wear or damage. The pistons should fit
with very little side clearance in the block bores, but
must slide freely.
NOTE: The correct bore diameter for the block is 0.6295"
to 0.6303" and the pistons should be 0.6288" to 0.6291".
28. Remove the two internal hex head cap screws retain-
ing the jackshaft to the housing with a 5 mm hex
wrench and remove the jack shaft/pinion gear assembly
from the housing.
Figure D–19. Center Section / Motor Shaft
Figure D–20. Remove Pump Block Assembly
Figure D–21. Remove Jackshaft / Pinion Gear Assy.
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Bypass Plate
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