Propulsion Gearbox / Reduction Gear · Propulsion Gearbox
The Twin Disc MG5600 is a single‑stage reduction gearbox delivering up to 5 600 kW (≈7 500 hp) with a fixed 2.5:1 ratio, converting engine speed of 1800 rpm to a propeller speed of about 720 rpm for medium‑speed marine propulsion.
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A 87-foot twin screw tugboat with specifications including berthing amenities, running gear, deck equipment, and auxiliary machinery.
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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