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INSTALLATION MANUAL

Which legacy converter and controller upgrade kit to order, how the converter wires into a first-generation TT thruster, the connector pin-outs and the Y-connector layouts for one or two control panels.

DocumentLewmar Legacy Converter (Gen 1 TT Thruster to Gen 2 Controls) Installation Manual
FormatPDF · 8 pages · 1.5 MB
LanguageEnglish
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Part NumbersInstallationWiringProducts
Lewmar Legacy Converter (Gen 1 TT Thruster to Gen 2 Controls) — Installation Manual

Part Numbers

The legacy converter (blue box) lets a Gen 2 control panel run a Gen 1 thruster. Order the version that matches your loom plug: Molex or DT.

Part no. Description Plug
589842 Blue box converter Molex View part →
589843 Blue box converter DT plug View part →
589864 Pad dual upgrade kit Molex Ask us to source it →
589868 Pad dual upgrade kit DT plug Ask us to source it →
589865 Pad single upgrade kit Molex View part →
589869 Pad single upgrade kit DT plug Ask us to source it →
589866 Joystick dual upgrade kit Molex Ask us to source it →
589870 Joystick dual upgrade kit DT plug Ask us to source it →
589867 Joystick single upgrade kit Molex View part →
589871 Joystick single upgrade kit DT plug Ask us to source it →
589810 Automatic battery switch 12v View part →
589830 Automatic battery switch 24v Ask us to source it →

Fitting the Converter

  • Remove the Gen 1 joystick and plug the converter into the existing 4-way loom connector.
  • Connect the Gen 2 panel to the converter directly or through an additional Gen 2 loom (8-way connector).
  • One converter per thruster; extra panels join through Y connectors/splitters. Existing wiring can stay before the converter; everything after it must be Gen 2 specification.
  • The red spade next to the 4-core thruster connector is for an ABS or PS switch if fitted.
  • Positive battery lead to the positive motor terminal. Don't remove the contactor cover unless authorised by Lewmar.

Torques & Safety Features

  • Motor studs: hold the inner nut with a second spanner, 13 mm for 110TT & 140TT and 17 mm for 185TT–300TT; tighten to 20 Nm (15 lbs.ft). Don't overtighten.
  • Fuse torque: 8mm 12.5 Nm (9.2lbf); 12mm 21.5 Nm (15.9lbf).
  • Auto shut-off after more than 10 minutes without use.
  • Fault mode if the joystick is held for more than 3 minutes continuously, or if the system is switched on with the joystick already operated.
  • With an automatic battery switch, main power comes on when the panel is switched on.

Connector Pin-Outs & Wiring

Thruster Loom Connector

Pin Core Function
1 Red +V
2 Blue Port
3 Grey Stbd
4 Black –VE

Panel Loom Connector

Pin Core Function
1 Brown +VE
2 Red Port contactor
3 Orange Stbd contactor
4 N/C N/C
5 Green Thermal switch
6 Blue –VE
  • Fig 1: a single controller needs no Y connector.
  • Fig 2: two single pads on one thruster need one Y connector.
  • Fig 3: dual pads must use 2 Y connectors.
  • Fig 4: a dual pad for 2 thrusters needs 2 converters, one per thruster.

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

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