Yanmar 4LHA-HTP Operation Manual page 561

Chapter 7 Reduction and Reversing
5. Disassembly
5-2 Disassembling the clutch shaft
5-2-1 Clutch gear (A) side
(1) Loosen the calking of the end nut and remove the
nut. Remove the nut by a torque wrench, fixing the
clutch shaft in a vice.
NOTE: Remember that the nut has a counterclockwise
thread.
(2)Take out the clutch gear (A), Thrust collar (A), cup
spring, spring retainer and inner bearing trace. The
clutch gear (A) must be withdrawn using a pulley
extracter, with the clutch shaft fixed in a vice.
Gear
7-1-25
(3) Remove the pin.
(4)Withdraw the thrust collar (B), inner needle bearing
by pulley extractor.
5-2-2 Clutch gear (B) side
(l)Loosen the calking of the end nut and remove the nut.
Remove the nut by a torque wrench, with the clutch
shaft fixed in a vice.
NOTE: Remember that the nut has a left-handed thread.
4LHA Series
Inner needle bearing
Thrust collar (B)