Yanmar 3JH3E - 1-3 Power transmission system

Chapter 7 Reduction and Reversing Gear
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1 ~3 Power transmission system
1 -3-1 Arrangement of shafts and gears
large gear of
output shaft
Idle gear
Input gear
_.,,..- Input shaft
Output
shaft
Shatt arrangement
viewed from
the stem
Intermediate shsft
/
/
Forward large gear
Forward small gear
with input shaft
,/
Reverse small gear
with input shaft
Reverse large
gesr
Output shaft
1 ·3-2 Reduction ration
Forward
Model
KM3A
Reverse
No. of teeth
Model
of reverse small
gesr Zif
KM3A
Printed in Japan
HINSHI-H8009
23
Na. of teeth No. of teeth
Reduction retio Zof/Zif
of forward small
gesr Zif
of forward 18rge
gear Zof
24 56 56124 = 2.33
22 58 58/22 = 2.64
19
61 61/19 = 3.21
No.
of teeth
No. of teeth
Reduction ratio Zi/Zir • Zdr/ZI
of intemediate shaft
gear Zi of reverse large gear Zdr
36 70 70/23 = 3.04
7-3