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1-1. Construction
These clutches are a cone-type, mechanically operated
clutch.
When the drive cone (which is connected to the output
shaft by the lead spline) is moved forward or backward, its
taper contacts with the large gear and transfers power to
the output shaft.
The construction is simple when compared with other-
types of clutch and if serves to reduce the number of com-
ponents, making for a lighter, more compact unit which
can be operated smoothly. Although it is small, the power
transmission efficiency is high even under a heavy load.
Its durability is high and it is also reliable because high
grade materials are used for the shaft and gear, and. a
taper roller bearing is incorporated.
Power transmission is smooth because connection
Printed in Japan
A0A1015-0302
for Engine Models 3JH25A / 3JH30A
7-29
It is also anticorrosive against seawater.
As the damper disc is fitted to the input shaft, power can
be transmitted smoothly.
There is small clearance between the dipstick and the
inside of the dipstick tube. A small hole in the dipstick
works as a breather.
when the load on the propeller is removed, the engage-
ment of the drive cone and the large gear is maintained
by the shifter and V-groove of the drive cone.
Even when the drive cone's tapered area and V-groove
are worn, this engagement is maintained by the shift
lever device and accordingly no adjustment of the
remote control cable is required.
The cup spring on the rear of the larger gear absorbs
rotational fluctuations and stabilizes the engagement of
the drive cone and the larger gear.
Thus, the durability of the cone against wear is enhanced.
NOTE:
KM3P3 marine gear differs from KM3P1 as follows.
Torque !imiter applied to KM3P3.
KM35P1 marlne gear differs from KM3P1 as follows.
Output shaft dia. 28mm. (KM3P1 : 25mm).
Drive corn the same as the one for KM4A marine gear.
Marine gear oil reserve capacity up.
0.5L (0.35L KM3P1 )
Printed in Japan
A0A1015-0302
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Troubleshooting
