Simplicity AGCO Allis 400 Series, Service & Repair Manual

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9-19
9 Hydro Transmission Repair
Hydro-Gear 310-0500
36. The parking brake was initially set at a specific run-
ning clearance of .025” to .030” between the two
outer stators. To check the clearance of the brakes in
your transaxle, rotate the brake lever until it contacts
the case (fully off position). Place a feeler gage
between the two outer stators. If the clearance is not
correct, make the necessary change with the brake
adjustment nut.
37. Install brake bolt cotter pin if equipped.
Figure 36. Brake Retainer Nut Variations
Figure 35. Tighten Brake Bolt Nut
Figure 38. Brake Adjustment (Transmission Viewed
from Bottom
28. Torque the retaining nut on the brake nut to 120–185
in-lbs.
29. Lubricate and install the brake pins into case and
brake arm onto brake bolt.
30. Install the slotted bracket (see Figure 36) onto brake
bolt with the slot aligned over the tab on transaxle.
31. Install washer and brake adjustment nut.
NOTE: Two versions of the brake retainer nuts have
been used. Early production employed “Nylock” type
nuts, while current production is using a castellated nut
with a cotter pin for retainment. Regardless of the type of
nuts used, the adjustment procedure is the same.
32. Install the bypass actuator shaft and control shaft
seals by applying petroleum jelly to lip of seal, and
wrapping the sharp edge of shaft with plastic tape.
Press the seal into case using a driver which only
applies force to the outside edge of the seal.
33. Install the bypass valve actuator arm and retaining
ring. on the bypass shaft. Use care to avoid over-
extending the retaining ring.
34. Install the bypass valve linkage arm on top of
transaxle case. Torque the mounting capscrew to
80-100 in-lbs.
35. Install the hydro control arm on control shaft and
secure with a setscrew.
Figure 37. Install Bypass Valve Control Linkage