TECHNODRIVE MARINE REVERSE-GEAR UNIT TYPE TMC 260
INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE – SPARE PARTS.
INTRODUCTION
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Prior to starting read and follow the istruction provided in this manual. Failure to do so will make warranty
void.
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Technodrive shall not be responsible for any demages caused by faulty installation, wrong handling or
deficient maintenance.
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It is the responsibility of users to provide and install guards and safety devices wich may be required by
recognized safety standards on the respective country.
GENERAL INFORMATION
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TMC 260 marine transmission is built with alloy steel, casehardened, and hardened gears; the clutch-unit is
a bronze double cone and the coupling device is mechanically servo controlled.
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The marine transmission unit may be coupled only to engines which turn anti-clockwise (as seen from the
flywheel side).
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In forward speed, the output flange rotating direction is reversed with regard to the engine rotating
direction.
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In ratios 2,00 and 2,47 , the reverse-gear maintains the same ratio in both directions. In ratios 1,54 and 2,88
the reverse-gear unit does not have the same reduction ratio as the forward speed.
INSTALLATION
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The gearbox is supplied without oil. Therefore, prior to its starting, it must be filled up with ATF oil up to
the maximum level marked by the dipstick
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The connection between the engine and the reverse-gear unit must be carried out by means of a proper
flexible coupling. Before carrying out the connection, protect the splined shaft by putting a layer of water-
repellent grease on it.
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Carefully carry out the fitting between the reverse-gear output shaft and the propeller shaft avoiding
misalignments.
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The reverse-gear unit may be installed with a maximum inclination of 15° with respect to the horizontal
surface.
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The reverse-gear unit must be shifted by means of a single-lever flexible cable. During the installation of
the control cable make sure that the cable neutral position corresponds to that of the reverse-gear unit lever
and that the cable allows the reverse-gear control lever to complete the stroke both in forward and in reverse
speed. The stroke of the lever between forward speed and reverse speed, must not be less than 60 mm (lever
lower hole), 70 mm (upper hole).
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Make sure that the lever forward speed position corresponds to the acual advencement of the hull.
Make certain that the control cable is easily movable.
Make sure that the control cable is able to perform the complete lever stroke both in forward and in
reverse and that it is well positioned in neutral.
USE AND MAINTENANCE
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Employ only ATF oil, perform the first replacement ofter 30 working hours then replace the oil every 500
working hours, at least once a year.
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Check the oil level weekly by means of the oil dipstick while the engine is off.
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When the reverse-gear unit is used continuously, oil temperature must not exceed 105° C.
