Lofrans SX1 Vertical Windlass — Installation & User's Manual
INSTALLATION MANUAL
Specifications, gipsy and chain match, cable sizing and wiring options, installation, operation, maintenance, troubleshooting and the parts list for the Lofrans SX1 vertical windlass, with its drilling and chain-pipe templates.
DocumentLofrans SX1 Vertical Windlass Installation & User's Manual
FormatPDF · 20 pages · 3.6 MB
LanguageEnglish
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Technical Data
| SX1 500 W | SX1 800 W | |
|---|---|---|
| Vessel length, heavy duty | 20–30 ft | 25–35 ft |
| Vessel length, light duty | 30–35 ft | 35–40 ft |
| Power supply | 12 V | 12 V |
| Maximum linear pull | 630 kg 1386 lb |
700 kg 1540 lb |
| Max lift working load | 95 kg 209 lb |
100 kg 220 lb |
| Current at working load | 75 A | 80 A |
| Max line speed | 26 m/min 78 ft/min |
28 m/min 84 ft/min |
| Line speed at working load | 23 m/min 69 ft/min |
25 m/min 75 ft/min |
| Net weight with drum | – | – |
| Net weight, low profile | 11 kg 24 lb |
13 kg 28 lb |
The printed table has its row labels out of step with the values; the values above follow the label order of the table.
| Gipsy | Chain supported |
|---|---|
| 6 mm | 6 mm ISO, 6 mm DIN 766, 3/16" BBB |
| 7 mm | 7 mm ISO, 7 mm DIN 766, 1/4" G4, 1/4" BBB |
| 8 mm | 8 mm ISO, 8 mm DIN 766, 5/16" G4, 5/16" BBB |
Electrical System
| Model | Motor (W) | Voltage (V) | Contactor (A) | Cable 0–15 m | Cable 0–50 ft | Cable 15–25 m | Cable 50–75 ft |
|---|---|---|---|---|---|---|---|
| SX1 | 500 | 12 | 35 | 16 mm² | 6 AWG | 25 mm² | 4 AWG |
| 800 | 12 | 70 | 16 mm² | 6 AWG | 25 mm² | 4 AWG |
Cable lengths are the total run, positive plus negative.
- Wiring diagrams in the PDF cover 2-, 3- and 4-terminal motors with control box, circuit breaker, 5 A fuse, footswitches, Type C rocker switch and the Thetis 1002 hand-held remote.
- Control box (solenoids): in a dry place near the windlass.
- Circuit breakers: use the Lofrans breakers, chosen for their trip curve rather than a plain rating.
- Remote control panel: where the operator can see the windlass during the manoeuvre, sealed so the terminals stay dry.
Requirements
- In the box: windlass with motor/gearbox, control box (DC versions), handle, screws.
- Tools: drill, 10 mm bit for wood and steel, 40 mm hole saw, 10 mm, 13 mm and 17 mm hex keys.
- Align the windlass precisely with the bow roller; bow roller height must keep the chain inclination below 5 degrees.
- The deck faces must be parallel; shim the difference if they are not.
- With all the chain stowed, leave at least 300 mm between the underside of the deck and the top of the heaped chain.
- Deck thickness: the standard studs suit 18 to 30 mm (0.7–1.2"); other thicknesses on request.
- Aluminium boats: insulate the windlass from the deck with a non-conductive gasket (not supplied), and insulate anchor and chain from the hull, including chain stopper and fixings.
Fitting
- Lay the drilling template on deck aligned with the bow; mark and drill. Leave the hole edges sharp but radius the forward edge of the chain hole at 45°.
- Clean the deck and fit the gasket supplied; set the upper part on deck. Silicone the base if you wish, but never a permanent adhesive.
- Below deck: grease the main shaft, offer up the gearbox with the motor away from the chain hole, fit washers and nuts to the studs and tighten; wire the motor per the diagram.
- Models up to 1500 W come with an IP cover that protects the motor from direct water and gives the IP67 rating. It must be fitted for the warranty to be valid.
- Chain: use calibrated chain matching the gipsy; feed it through the hole and make it fast, wrap it on the gipsy and motor it in, keeping it aligned. Always fit a swivel between chain and anchor.
- Templates: the SX1 drilling template and the chain pipe 636431 template are A3 sheets drawn at 1:1. Print at 100% and check the dimensions before you drill.
Operation
Lowering
- Electrically: clutch tight, chain stoppers off; switch on the safety switch and press DOWN; then switch off and re-engage the stoppers.
- By gravity: clutch tight, stoppers off, then ease the clutch with the handle. Clockwise brakes the chain (to a full stop), anticlockwise lets it run. Make the chain fast to a strong point.
- A fully released clutch drops the anchor at high speed and can damage the hood and bow roller: control the speed.
- Wait for the windlass to stop before reversing direction.
Recovery
- Breaker on, clutch tight, handle removed, stoppers off; press UP until the anchor seats in the bow roller; breaker off and chain on the stopper.
- Do not recover on the batteries alone: run the engine or generator.
- If the hydraulic-magnetic breaker trips on overload, reset it and wait some minutes before running again. It does not protect the motor from overheating on long runs.
- Never use the windlass as a mooring point; hold the load on a chain stopper.
Maintenance Programme
| Use of the yacht | Less than 2 months | From 2 up to 6 | More than 6 | Charter |
|---|---|---|---|---|
| Every 3 months | A – A (as printed) | A – B | A – B | |
| Every 6 months | A – B | |||
| Every 12 months | A – B – C | C | C | C – D |
| Every 24 months | D | D | E | |
| Every 36 months | D – E | E | E |
- A – Rinse all surfaces and hidden points with fresh water and a soft cloth or non-abrasive sponge. No chlorine, bleach or acid: they damage the stainless parts and seals. Polish the stainless parts with metal polish.
- B – Grease the rotating parts with non-conductive yellow marine grease, especially main shaft threads and clutch cones; check for corrosion and stress. Anti-seize on the cone clutch and main shaft thread (631829+630680).
- C – Check the motor terminals and test the voltage drop.
- D – Replace all gaskets.
- E – Remove the windlass from the deck, clean the salt from under the base and re-seal.
Gipsy Service
- Turn the hand-wheel anticlockwise with the handle and remove it.
- Remove the 2 M6 screws at the side of the base that hold the stripper, and take it off.
- Slide off the upper clutch cone, gipsy and lower clutch cone.
- Wash with running water, never a pressure washer, and check for corrosion or stress; reassemble in reverse order, greasing threads and moving parts.
Troubleshooting
| Problem | Possible causes | Solution |
|---|---|---|
| Windlass does not run when a control is operated | Protection switch OFF; no voltage; control box, control or motor failure | Switch ON; check battery and connections; check/replace control box or control; check motor voltage and brushes, replace the motor if needed |
| Chain jams frequently | Locker too shallow for the chain carried; chain does not suit the gipsy; chain not calibrated | Fit over the deepest point of the locker or carry less chain; change the gipsy; replace out-of-tolerance chain |
| Runs slowly and sometimes trips the breaker | Cables, connections, brushes, water in the motor, decks not parallel, gearbox oil loss, motor labouring, or works in one direction only | Increase cable section; check connections; clean brushes; replace the motor; shim to parallel; (service) inspect gearbox and motor; check 12/24 V across B2–C and B3–C with each button pressed, replace the control box if a relay fails |
| Motor runs, shaft does not turn | Worn or broken wormwheel/worm teeth; broken motor spindle | (Service) replace broken parts or the motor; renew gaskets, screws, keys, circlips and oil at the same time |
| Shaft turns UP but not DOWN | Tangled chain in the locker; poor chain (burrs, zinc); chain stowed in a block | Fit a swivel after the anchor; inspect and free the chain link by link; lower all the chain in deep water and recover it with the windlass |
| Motor and shaft run, gipsy stays still | Gipsy not closed on the clutch cones; cones deformed | Check clutch tightening, shim or replace damaged parts; replace clutch and/or gipsy |
| Shaft out of line | Shaft bent by excessive load | (Service) replace the shaft and worn parts |
| Oil loss between motor and gearbox | Loose motor coupling | (Service) find the cause, check spindle and worm bore, repair on the bench, check for oil in the motor |
| Shaft and studs too short at installation | Wrong deck thickness given when ordering | Adapt the studs if the keyed shaft engages the gearbox fully; otherwise order a longer shaft |
Spare Parts
✓ = part included in the maintenance kit. The printed list has its descriptions out of step with the item rows; the pairing below follows the printed order (31 items, 31 descriptions).
| Item | Description | Maintenance kit |
|---|---|---|
| 208 | Ring | |
| 216 | Bush | |
| 224 | Key – 6×6×45 | ✓ |
| 226 | Washer for M8 screw | ✓ |
| 227 | Nut – M8 | ✓ |
| 230 | Spring washer for M5 screw | ✓ |
| 231 | Washer for M5 screw | ✓ |
| 232 | Key – 4×4×15 | ✓ |
| 252 | O-ring 2325 | |
| 293 | Hd cap screw M5×16 | ✓ |
| 964 | Magnet | ✓ |
| 965 | Sensor | ✓ |
| 1047 | Ring | |
| 1048 | Clutch cone – outer | |
| 1049 | Clutch cone – inner | |
| 1225 | PG9 | |
| 1226 | Gearbox | |
| 1228 | O-ring 2250 | |
| 1231 | Electric motor 500 W 12 V | |
| 1303 | Complete motor cover kit | Kit Cover |
| 1045a | Main shaft without drum | |
| 1232a | Electric motor 800 W 12 V | |
| 206b | Gipsy chain 6 – 5 pockets | |
| 206c | Gipsy chain 7 – 5 pockets | |
| 206d | Gipsy chain 8 – 5 pockets | |
| 225a | Stud M8×58 | |
| 842a | Handle | |
| 2011 | Gipsy cap SX1 | |
| 2012 | Stripper SX1 | |
| 2013 | Base SX1 | |
| 2014 | Allen M6×16 |
Warranty
- 3 years from purchase by the end user, with the maintenance programme followed.
- 1 year for electric motors and equipment, electronic controls, hydraulic pumps, valves and actuators, gaskets and seals, and products used on charter boats.
- Not covered: wrong product choice, use outside the design application, corrosion, UV and wear, skipped maintenance, wrong installation, modifications, removal/transport/installation costs, maintenance by people not authorised by Lofrans.
Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.
Products in this Manual
