We Ship Worldwide! | FREE SHIPPING! for US Continental orders over $145. Click for details.
INSTALLATION MANUAL

Drive specifications by model, EMC rules, mounting on a Mamba bevelhead or reduction gearbox, course computer connections, cable sizes, post-installation checks and maintenance for the Lewmar Mamba autopilot drive.

DocumentLewmar Mamba Autopilot Drive Installation Guide
FormatPDF · 24 pages · 0.2 MB
LanguageEnglish
Download PDFView Collection
SpecificationsInstallationElectricalChecksProducts
Lewmar Mamba Autopilot Drive — Installation Guide

Drive Specification

Part no. Description HP Volts Max output torque ft lbs / Nm No-load speed RPM Max rudder torque ft lbs / MKG Average current Breaker motor / clutch Weight kg / lb Boat size
89300051 Mamba 1/8hp 12v Std 1/8 12 70 / 95 10 988 / 138 4A 16A / 1.5A 8 / 17.6 Up to 11.6m (38') Ask us to source it →
89300052 Mamba 1/8hp 24v Compact 1/8 24 70 / 95 10 988 / 138 4A 10A / 2A 8 / 17.6 Up to 11.6m (38') Ask us to source it →
89300053 Mamba 1/4hp 12v Std 1/4 12 125 / 169 10 1794 / 248 4A 16A / 3A 9 / 19.8 Up to 16.75m (60') View drive →
89300054 Mamba 1/4hp 24v Std 1/4 24 125 / 169 10 1794 / 248 2.5A 10A / 2A 9 / 19.8 Up to 16.75m (60') View drive →
89300055 Mamba 1/4hp 24/12v Std 1/4 24/12 125 / 169 10 1794 / 248 2.5/4A 10A / 3A 9 / 19.8 Up to 16.75m (60') View drive →
89300056 Mamba 1/4hp 12v Compact 1/4 12 125 / 169 10 1794 / 248 4A 16A / 3A 9 / 19.8 Up to 16.75m (60') Ask us to source it →
89300057 Mamba 1/4hp 24v Compact 1/4 24 125 / 169 10 1794 / 248 2.5A 10A / 2A 9 / 19.8 Up to 16.75m (60') Ask us to source it →
89300058 Mamba 1/4hp 24/12v Compact 1/4 24/12 125 / 169 10 1794 / 248 2.5/4A 10A / 3A 9 / 19.8 Up to 16.75m (60') Ask us to source it →
89300059 Mamba 1/4hp 12v Std Bavaria 1/4 12 125 / 169 10 1794 / 248 4A 16A / 3A 9 / 19.8 Up to 24.4m (80') Ask us to source it →
89300060 Mamba 1/2hp 24v Std 1/2 24 135 / 183 10 3080 / 426 3.5A 16A / 2A 10.5 / 23.1 Up to 24.4m (80') View drive →
89300061 Mamba 1/2hp 24/12v Std 1/2 24 (as printed) 135 / 183 10 3080 / 426 3.5A 16A / 3A 10.5 / 23.1 Up to 24.4m (80') Ask us to source it →
89300062 Mamba 1/2hp 24v Compact 1/2 24 135 / 183 13 3080 / 426 3.5A 16A / 2A 10.5 / 23.1 Up to 24.4m (80') Ask us to source it →
89300063 Mamba 1/2hp 24/12v Compact 1/2 24/12 135 / 183 13 3080 / 426 3.5A 16A / 3A 10.5 / 23.1 Up to 24.4m (80') Ask us to source it →
89300064 Mamba 1hp 24v c/w bed plate 1 24 344 / 466 18 12055 / 1660 6.A (as printed) 32A / 2A 30 / 66.1 Over 24.4m (80') View drive →
  • Protected for use in engine compartments.
  • CE: 89/336/EC (EMC), BS EN60945:1997; 94/25/ec (RCD), BS EN28846:1993.
  • Part of an electronics manufacturer's autopilot system, for boats with existing Mamba steering. Fitting by a competent marine installation technician is strongly recommended.

Preparation

  • The drive mounts directly on the steering system's bevelhead or reduction gearbox via an interface plate, in any attitude.
  • If the gearbox has no drive interface plate, it can be returned to the factory for adaptation at the owner's cost.
  • Do not attach the drive to structures that support cabins (noise, vibration). Not waterproof: mount it dry and clear of bilge water, accessible for service.
  • EMC: at least 3ft (1m) from VHF equipment and cables, 7ft (2m) from SSB and from a radar beam; supply from a battery other than the engine start battery (below 10V the equipment can reset).

Mounting

  • Supplied: Mamba drive, securing bolts with washers and lock-nuts. You also need the Mamba bevelhead or reduction gearbox with interface plate, and cable and connectors.
  • Smear grease on the drive output shaft. The drive pushes over the splined output shaft of the bevelhead or gearbox and is fixed with two M10 bolts (2 helicoiled M10 holes, through hole optional).
  • Do a steering check before securing the drive; keep clear of moving steering parts and guard them in normal use.

Connecting to the Course Computer

  • Switch off the power supply first.
  • Drive motor: two single-core black cables twisted as a pair in sleeving. Clutch: two-core cable, brown (+) and blue (–).
  • Measure the total run to the course computer and size the motor cable from the recommended cable size table; at least 1.5mm2 (14 AWG) copper for the clutch.
  • Join with suitably rated connectors or junction boxes; route following the EMC guidelines.
  • At the course computer: CLUTCH brown to +ve, blue to –ve; MOTOR cables to either terminal at this stage.

The recommended cable size table is shown as printed (the HP headings in the source are partly illegible).

Post Installation Checks

  • Drive secured to a substantial structure.
  • Motor and clutch cables correctly routed and connected.
  • Hand-steer hardover to hardover: the drive must not impede steering.
  • Then complete the autopilot steering check in the course computer handbook.

Maintenance

  • Every 6 months: check all connections and mountings are secure, and cables for wear or damage.

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

Products in this Manual