10. Reduction and Reversing Gear
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10. Reduction and Reversing Gear
Marine gear KM35P and KM35A are applied to the 3JH4E series engines.
Refer to chapter 7 in the service manual of 3JH3/4JH3 engines for inspection, disassembly and
reassembly.
Specifications
Model KM35P KM35A
For engine models 3JH4E 3JH4BE
Clutch Constant mesh gear with servo cone clutch (wet type)
Reduction
ratio
Forward 2.36 2.61 2.33 2.64
Reverse 3.16 3.16 3.04 3.04
Propeller shaft speed
(at continuous power, Forward) min
-1
1232 1114 1246 1103
Direction of
rotation
Input shaft Counter-clockwise, viewed from stern
Output shaft Forward Clockwise, viewed from stern
Reverse Counter-clockwise, viewed from stern
Remote
control
Control head Single lever control
Cable Morse. 33-C (cable travel 76.2mm)
Clamp YANMAR made. standard accessory
Cable connector YANMAR made. standard accessory
Output shaft
coupling
Outer diameter 100mm
Pitch circle diameter 78mm
Connecting bolt holes 4-10.5mm
Position of shift lever , viewed from stern Left side Right side
Lubricating oil API CC class, SAE 20/30
Lubricating oil capacity 0.5 liters 0.65 liters
Dry mass 12kg 13kg
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