Yanmar 4JH- Service Manual - I Forum di Amici della Vela
Contents
1. Chapter 7 Reduction and Reversing Gear l Construction eA torque limiter is built into the input shaft gear to prevent damage caused by excessive torque e The lube oil temperature can be controlled because in addition to the input shaft gear which functions as a centrifugal pump an oil cooler is also equipped eThe oil cooler is equipped with a cooling water drain cock to prevent cracks caused by freezing in cold weather It is therefore easy to drain the water e The propeller shaft can rotate in both counter clockwise C C W and clockwise C W directions NOTE Since the difference in reduction gear ratio bet ween C C W and C W rotations is within 0 07 no problem occurs in operation 1 2 Specifications of Angle Drive Marine Gear Model KM4A For engine models 4JH BE 4JH TBE 4JH HTBE 4JH DTBE Down angle 7 degree Clutch Constant mesh gear with servo cone clutch wet type Counter clockwise viewed from stern Direction of rotation Reduction ratio 2 63 2 14 Propeller shaft rpm at cont rating 1332 1637 Single lever control EEE TEE Morse 33 C Cable travel 76 2mm or 3 in YANMAR Made standard accessory YANMAR Made standard accessory Output shaft coupling 100mm 3 93 Position of shift lever Right side viewed from stern Lubricating oil Same as Engine lube oil Lubricating oil capacity 1 32 Lube oil cooler Sea water cooling 7 25 Printed in Japan 0000A0A 1647
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