Twin Disc Marine Transmission MGX-5095SC

Is your unit equipped with a lubrication fitting?

Upload a photo of the lubrication fitting

Enter the current hours on the transmission output shaft

Apply grease approximately every 100 hours when boat is docked

Enter the NLGI consistency number for the grease used

Sign off on the lubrication procedure

Look for lint or other material that may collect from rags or towels used in the parts cleaning process.

Look for chips or shavings particularly if the transmission has had a problem that caused debris in the system. (For units with spin-on filters, this will require cutting the filter element apart to access the element core.); If the filter is clean, install a new filter element and then change the oil and filter element after 1000 hours of service. If the filter is dirty, change the element and operate for another eight hours. Check the filter again.

Continue this cycle until the filter is clean and then change the oil and filter after 1000 hours of service, or more often if conditions warrant.

NOTE: Situations involving debris in the hydraulic system will require that heat exchangers and all connecting lines and hoses be thoroughly cleaned. If the heat exchanger cannot be disassembled, or if it cannot be assured that all debris is removed, the heat exchanger should be replaced.

Remove and clean the suction strainer at every oil change or sooner if necessary. See illustrations in Section 6.2 for the location of the suction strainer for your transmission.

Drain the transmission by removing the oil drain plug from the rear/bottom of the transmission. See the illustrations in Section 6.2 or service literature for your transmission for location of transmission and filter drain plugs.

NOTE: Dispose of used oil and oil filters in accordance with federal, state or local laws. Exercise precautions to prevent environmental contamination during any transmission servicing procedure.

Warning: This check requires trained personnel with PPE!

Heat exchangers have anodes installed at the inlet and outlet heads

Enter the percentage of the rod disintegrated

Is over one half of the rod disintegrated?

If over one half of the rod is disintegrated, replace it to assure effective protection.

Excessive corrosion of the anode indicates electrolytic action

Make a careful inspection to determine if this action is caused by a short circuit or an external grounded electric current.

Is the action caused by a short circuit or an external grounded electric current?

If either of these conditions is found, do what is required to correct it to avoid frequent replacement of the anodes.

Warning: Do not obstruct the flywheel housing vents

Is the ambient temperature of the air around the coupling within the operating range (-6°C to 82°C)?

Enter the current operating hours of the machine

If possible, visually inspect the coupling after the first 100 hours of operation, and every 2000 hours thereafter, or every six months, whichever comes first.

Any signs of torsional vibration, misalignment, degradation by contaminants (oil), heat, ultraviolet radiation, and excessive system torque on the coupling?

If coupling access is restricted, inspection may be possible only at engine overhaul or whenever the transmission is separated from the engine.

Any accumulation of residue at the flywheel housing vents?

If an accumulation of residue is found, describe the possible cause.

With a new transmission, change the oil and filter element within first 50 hours of operation. Change the oil more frequently if conditions warrant.

Remove and clean the suction strainer at every oil change or sooner if necessary. See illustrations in Section 6.2 for the location of the suction strainer for your transmission.

Drain the transmission by removing the oil drain plug from the rear/bottom of the transmission. See the illustrations in Section 6.2 or service literature for your transmission for location of transmission and filter drain plugs.

NOTE: Dispose of used oil and oil filters in accordance with federal, state or local laws. Exercise precautions to prevent environmental contamination during any transmission servicing procedure.

1. Remove the breather or the oil fill closure from the top of transmission case.

2. Pour new oil through breather or closure opening. Fill with recommended clean oil, taking necessary precautions to prevent entry of dirt or debris. (See lubrication plate on transmission and information transcribed to the front of this manual for additional oil information.);