Simplicity LTH series Service Manual page 221

NOTE: To simplify the installation of the pump block,
wrap a rubber band snugly around the pistons. This is
intended to hold the pistons in their bores as the block kit
is handled during installation.
8. With the swashplate in the neutral (0 angle) position,
lubricate the running surfaces and install the cylinder
block assembly onto the pump input shaft. Make sure
the splines engage properly.
9. Install the pinion gear and washers onto the jack-
shaft. Install the jackshaft assembly into the housing
and torque the bolts to 120 in. lbs. to 170 in. lbs.
Use Loc-Tite solution on the bolts.
10. Install the aligning pins (A, Figure D–31) and the
bypass actuator into transaxle housing. Align the
straight edge (C) of the bypass actuator (B) with the
casing boss (D) or the bypass plate will be damaged.
7D Hydro-Gear 0750 / 0800
Figure D–29. Cylinder Block Kit with Rubber Band
Figure D–30. Jackshaft Assembly Installation
A
Figure D–31. Install Aligning Pins & Bypass Actuator
A. Alignment Pins
B. Bypass Actuator
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7 Transmission Repair
A
D
B
C. Straight Edge
D.Casing Boss
C