Yanmar 4LHA-HTP Operation Manual page 565

Chapter 7 Reduction and Reversing Gear
6. Reassembly
6.Reassembly
6-1 Reassembly of clutch shaft
6-1-1 Clutch gear (B) side
(1)Fit the clutch gear (B) side snap ring and thrust
collar (B) onto the shaft.
NOTE: 1) Insure that slots in thrust washer face gear side.
2) Position slots in thrust washer on the oil holes of
the shaft.
(2)Drive in the inner needle bearing race using the
inserting tool.
Inserting tool
Inner bearing race
(3)Assemble the needle bearing and clutch gear (B).
NOTE:Check that the clutch gear (B) rotates smoothly.
Thrust collar (B)
Snap ring
Clutch gear (B)
7-1-29
(4)Fit the cup spring, spring retainer, thrust collar (A).
NOTE: 1) Drive in with a plastic headed hammer Do not
hit hard.
2) When fitting the thrust collar (A), note the
fitting direction.
surface toward the drive gear side.
3) Check that the clutch gear (B) rotates smoothly.
4) Cup spring is installed with slope facing in toward
spring retainer.
(5) Fit the keys.
Key
4LHA Series*
Thrust collar (A)
Spring retainer
Cup spring
Fit it keeping the stepped