Twin Disc Marine Transmission MGX-5147A

Transmission lubrication plate checked

Enter the internal quantity required to fill the transmission to its proper level

Transmission control placed in NEUTRAL

Enter the transmission oil pressure

Pressure registered within 15 seconds

Section 3.3.a: Fill the transmission

Transmission filled to LOW mark on the dipstick

Do not obstruct the flywheel housing vents, which will prevent the free flow of air for cooling the coupling.

Operating air temperatures above -6°C (22°F) and below 82°C (180°F) must be maintained.

Enter the current operating air temperature

Is the air temperature within the operating range?

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.

Enter the hours of operation since the last inspection

Enter the date of the last inspection

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

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

Excessive corrosion of the anode indicates electrolytic action

Describe the cause of the electrolytic action if found

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

Anodes are corroded with foreign material

If the anodes are corroded with foreign material, use a wire brush to clean them

Warning: This procedure requires trained personnel with PPE!

Suction screen and filter element checked after eight hours of operation

Lint or other material collected from rags or towels used in the parts cleaning process

Chips or shavings found in the transmission

Filter element cut apart to access the element core

Oil and filter changed after 1000 hours of service

Heat exchangers and all connecting lines and hoses thoroughly cleaned

Change oil and filter element after each 1000 hours of operation, or six months, whichever comes first. 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.);