Propulsion Gearbox / Reduction Gear · Propulsion Gearbox
The Twin Disc MG540 is a marine reduction gearbox delivering up to 540 kW of shaft power with a fixed 2.5:1 ratio, converting high‑speed engine output (≈1800 rpm) to a lower propeller speed (~720 rpm).
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Photos, drawings and page previews from this model’s datasheet or catalog.
“ICE BREAKER FERRY Situation Washington Island, off of Wisconsin’s Door Peninsula, has thousands of summertime visitors and more than 700 year-round residents who depend on the Washington Island Ferry…”Source: Twin Disc MG540 datasheet, p. 1
What our service work and the manufacturer documentation say about keeping this model running.
Inspect oil level and condition, filters, coolers, pumps, bearing temperatures, vibration, seals and alignment. Review magnetic plugs or oil-debris findings and investigate changes in gear noise. Check clutch or control response where applicable. Refer to the manufacturer documentation for the exact figure for backlash, tooth contact, oil pressure and bearing limits.
Carry filters, pump and valve service parts, seals, approved lubricants, clutch components where fitted, temperature or pressure sensors and critical bearing or fastening parts.
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Other models of the same equipment type, Twin Disc first.
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