THE MANUAL OF MARINE TRANSMISSION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
- 4 -
2-2. INPUT SHAFT SUB ASS’Y
1) Outer Part
The outer part has the grooves in regular shape for the rubber blocks to be
assembled to transmit the power. It is assembled to engine flywheel by
screws.
2) Inner Part
The Inner part is assembled to input coupling by reamer bolts and has the
structure for the rubber blocks to be assembled.
3) Rubber blocks
They are rubber products and relieve the rotational vibration by engine which
means they let the power transmitted smoothly.
4) Input shaft
The input shaft is assembled to the input coupling by spline and shrink-fitted
to input clutch housing. Key on the input shaft is assembled to pinion
coupling to transmit the power of LIVE PTO.
5) INPUT SHAFT ASS’Y
The input shaft sub Ass’y consists of input clutch housing, clutch piston, steel
plates, sintered plates, back plate and return spring.
The steel plates have inner teeth which engage with the input pinion and
sintered plates have outer teeth which engage with the input clutch housing.
The steel plates and sintered plates are alternately assembled one by one and
when the selector valve lever is shifted in ahead position, the oil pushes the
clutch piston to actuate the input clutch. At this moment, the steel plates and
sintered plates are engaged and the power is transmitted from the input clutch
housing to input pinion.
When the lever is shifted in neutral position, the clutch piston returns to its
original position by the return spring. At this moment, the oil is drained from
the clutch piston section and the clutch is automatically disengaged.
1
3
2
5
4
