Case 580SR Service Manual page 141

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SECTION 21 - TRANSMISSION 75
TRANSMISSION ASSEMBLY
All nylon patch bolts may be re-used 5 to 6 times pro-
vided a prevailing thread torque of 20 to 25 Nm is re-
corded.
All shafts and bearings should be lubricated with
transmission fluid prior to assembly.
To prevent possible contamination of hydraulic parts
lint or cotton rags should not be used.
Position the front case as shown and using a suita-
bly sized tube fit a new output shaft oil seal to a
depth of 6 mm below the housing face. Fill the seal
lip with grease (on 4WD models only).
If previously removed, replace the two plug and O-
ring assemblies and tighten to a torque of 41-54 Nm.
Refit the oil pump assembly and sealing ring. Tight-
en 4 bolts to a torque of 18-31 Nm.
New copper washers must be fitted under the bolt
heads. Finally check for free rotation of pump rotor.