From Hydro-Gear Service Manual for the 310-0510 transaxle:
Axle Seal
1. Remove the axle clips (93) from the axle
horns (for units with keyed axle shafts).
2. Remove the seal retaining rings (12).
3. Carefully pull the axle seals (34) out of the
housing bore with a “hook” type tool. Care
must be taken to avoid damage to the housing
bore or to the shaft sealing areas.
4. Lubricate the new seal with petroleum jelly
prior to installation.
5. Wrap the shaft keyway (splines) with cellophane
to prevent damage to the seal lip during
installation.
6. Slide the seal over the shaft and press it into
the housing bore.
7. The seal should seat against the sleeve
bearing.
8. Install the seal retaining rings (12).
9. Install the axle clips (93), if applicable.
See the attached image.
Hope this helps you out!
Axle Seal
1. Remove the axle clips (93) from the axle
horns (for units with keyed axle shafts).
2. Remove the seal retaining rings (12).
3. Carefully pull the axle seals (34) out of the
housing bore with a “hook” type tool. Care
must be taken to avoid damage to the housing
bore or to the shaft sealing areas.
4. Lubricate the new seal with petroleum jelly
prior to installation.
5. Wrap the shaft keyway (splines) with cellophane
to prevent damage to the seal lip during
installation.
6. Slide the seal over the shaft and press it into
the housing bore.
7. The seal should seat against the sleeve
bearing.
8. Install the seal retaining rings (12).
9. Install the axle clips (93), if applicable.
See the attached image.
Hope this helps you out!