Yanmar 4LHA-HTP Operation Manual page 590

Chapter 7 Reduction and Reversing Gear
4. Disassembly
i 4LHA Series
24. Remove input shaft seal using appropriate mandrel.
b. Remove screws and hold down plate.
c. Remove suction pipe by pulling downward out of seal.
a - Seal
25. Remove output shaft seals using appropriate mandrel.
b - Hold Down Plate
I
d. Remove seal from top side.
a - Seal
7-2-16