Yanmar 4LHA-HTP Operation Manual page 563

Chapter 7 Reduction and Reversing Gear
5. Disassembly
5-3 Disassembling the input shaft
(1)Draw out the input shaft tapping to the small roller
bearing side with a steel bar.
Steel bar —
Clamp here by vice.
Input shaft
(2) Fix the input shaft gear in a vice, and remove the
lock nut with a special tool.
1 1
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JTl
1
Special tool Special tool
- Plate (B)
Plate (A)
Cup spring
-Input shaft gear
7-1-27
5-4 Disassembling the output shaft
(DRemove the bearing inner race from the output shaft.
Use a pulley extracter, fixing the output shaft in a
vice.
5-5 Disassembling the intermediate shaft
(l)Remove the lock nut with the intermediate shaft
fixed in a vice.
(2)Withdraw the gear and bearing by pulley extractor,
with the gear fixed in a vice.
4LHA Series
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