Yanmar 4LHA-HTP Operation Manual page 600

Chapter 7 Reduction and Reversing Gear
5. Reassembly
GEAR ASSEMBLY
Reinstall gear assembly. Twist gear assembly from side to
9.
side to allow splines to engage with inner discs. Ensure all
inner discs are engaged with splines by observing through
slots in clutch housing.
10. Reinstall butting ring.
TAPERED ROLLER BEARING
A CAUTION
Do not touch bearing once it has been heated. Severe
burns could result. Use special protective gloves to
handle bearing.
11. Heat inner race of tapered roller bearing using a torch
lamp and press bearing onto shaft. When beaing
has cooled down (Do Not cool with water), tap bearing
carefully down to ensure proper seating against butting
ring, using a soft (copper) punch tap on inner race only.
a - Tapered Roller Bearing
b - Butting Ring
12. Install components on opposite side of clutch assembly
in same manner.
7-2-26
4LHA Series