Maxwell RC12HD Vertical Windlass — Owner's Manual
OWNER'S MANUAL
Specifications for every drive (DC 24V/48V, 3-phase AC and four hydraulic options), installation, wiring and cable sizing, operation, maintenance, troubleshooting and the full spare parts lists for the Maxwell RC12HD vertical rope/chain windlass (manual P103151-375 Rev.10.00).
DocumentMaxwell RC12HD Vertical Windlass Owner's Manual
FormatPDF · 34 pages · 4.3 MB
LanguageEnglish
Specifications
| Model | Chain size | Rope size |
|---|---|---|
| RC12HD-13 | 13mm DIN766 short link | 20 mm (7/8") to 22mm (3/4") (as printed) |
| RC12HD-12 | 12mm (1/2") short link | 20 mm (7/8") to 22mm (3/4") (as printed) |
| RC12HD-11 | 11mm (3/8" G30/G43) short link | 16 mm (5/8") to 20mm (7/8") |
| RC12HD-10 | 10mm (3/8" BBB) short link | 16 mm (5/8") to 20mm (7/8") |
Static hold 2200 kg (4840 lbs). Available clockwise or anticlockwise, with or without capstan, 100mm (standard) or 200mm deck clearance, DC electric, AC electric or hydraulic.
| DC 24V / 48V | AC 3 phase | Hyd. type 2 (138 bar) | Hyd. GT type 1 (120 bar) | Hyd. GT type 1 HP (205 bar) | Hyd. GT type 1 high flow (85 bar) | |
|---|---|---|---|---|---|---|
| Maximum pull | 1820 kg (4000 lbs) | 1820 kg (4000 lbs) | 1250 kg (2750 lbs) | 1820 kg (4000 lbs) | 1820 kg (4000 lbs) | 1820 kg (4000 lbs) |
| Continuous pull | 300 kg (660 lbs) | 620 kg (1360 lbs) | 1250 kg (2750 lbs) | 1250kg (2640 lbs) (as printed) | 1250kg (2640 lbs) (as printed) | 1250kg (2640 lbs) (as printed) |
| Line speed at continuous pull | 12 m/min (39 ft/min) | 12 m/min (39 ft/min) 50Hz; 14m/min (46 ft/min) 60Hz | 15 m/min (49 ft/min) | 15 m/min (49 ft/min) | 15 m/min (49 ft/min) | 14.2 m/min (46.6 ft/min) |
| Working load limit (10min run time) | 610 kg (1335 lbs) | 750 kg (1650 lbs) | 1250 kg (2750 lbs) | 1500 kg (3300 lbs) | 1500 kg (3300 lbs) | 1500 kg (3300 lbs) |
| Maximum line speed | 22 m/min (72 ft/min) | 12 m/min (39 ft/min) 50Hz; 14m/min (46 ft/min) 60Hz | 22 m/min (72 ft/min) | 15 m/min (49 ft/min) | 15 m/min (49 ft/min) | 14.2 m/min (46.6 ft/min) |
| Motor / oil flow | 2000W (2.7 HP) 24V; 2300W (3HP) 48V | 2200W (3 HP) | Rec. 32 l/min (8.5 US gal/min), max 47 l/min (12.5 US gal/min) | Rec. 47 l/min (12.4 US gal/min), max 49 l/min (12.5 US gal/min) | Rec. 28.5 l/min (7.6 US gal/min), max 29.7 l/min (7.85 US gal/min) | 64 l/min (16.9 US gal/min) |
| Max oil pressure / ports | – | – | 138 bar (2000 PSI); 7/8" (SAE 10) | 120 bar (1750 PSI); ½" BSPP, drain ¼" BSPP | 205 bar (3000 PSI); ½" BSPP, drain ¼" BSPP | 85 bar (1250 PSI); 1 1/16" -12 UN (Dash -12), drain 9/16" UN (Dash -6) |
| Net weight LP / capstan | 37 kg (81 lbs) / 40 kg (88 lbs) | 51 kg (112 lbs) / 54 kg (118 lbs) | 28.5 kg (63lbs) / 31.5 kg (69lbs) | 31 kg (68 lbs) / 34 kg (75 lbs) | 31 kg (68 lbs) / 34 kg (75 lbs) | 31 kg (68 lbs) / 34 kg (75 lbs) |
Minimum pull capacity must be three times the combined weight of anchor and rope/chain. Supplied with clutch handle, emergency retrieval handle, reversing solenoid (DC only), deckplate gasket, deck cutout details and nuts, flat and spring washers (x 5).
Position & Mounting
- At least 200mm (8") unobstructed fall into the locker from the lowest part of the windlass; rode must not foul the motor. "UP" is clockwise looking down.
- Clear run from the bow roller (central groove for the chain size) without deflection; deckplate pointing at the incoming rode, chain leading in parallel to the deckplate base (plinth or angled mounting if needed). Minimum 150mm (6") between bow roller and windlass.
- Flat deck and a strong under-deck pad (not supplied). Use the Deck Cutout Details (not to scale – confirm the dimensions before cutting); seal hole edges on GRP or wood with epoxy. Insulate fully on aluminium.
- Bolt the deckplate down progressively and evenly by hand – no power tools; offer up the drive from below, bolt deckplate to spacer tube with the M10 screws at 35-40 Nm (25-30 ft lb).
- Chain counter sensor goes in the Ø15mm hole in the deckplate.
- Topworks: two retaining clips, anti-seize on shaft and keyway, key, lower clutch cone (marine grease on the taper), Belleville washer, chainwheel, Belleville washer, key, upper cone, key and drum (capstan models), clutch nut, retaining washer and screw, cap.
Electrical
- Install to USCG, ABYC, NMMA or local rules; seal terminals with CRC2043, CRC3013 or CRC2049.
- Solenoid pack dry and close to the windlass, not in the locker.
- Circuit breaker/isolator required: RC12-HD 24V 135 Amp, 48V 85 Amp; within 1.8 m (6 ft) of the battery.
- Footswitch approximately 500 mm (20") from the windlass; remote panel where the operator can see the windlass.
- Hold the lower motor terminal nut while tightening the upper nut.
- AC: waterproof gland for armoured cable, earth connection, thermistor leads to the auxiliary terminals; direct-on-line starter or VFD (star-delta and soft starters not recommended); up/down contactors interlocked.
- Hydraulic: pressure and return ports to a solenoid valve (not supplied); case drain port.
Maximum Cable Length for 10% Voltage Drop (Table 2.1)
| Wire size | 24V | 48V |
|---|---|---|
| 10 mm² | *2 | 41m (136ft) *1 |
| 16 mm² | *2 | 66m (218ft) |
| 25 mm² | 25m (85ft) *1 | 103m (340ft) |
| 35 mm² | 36m (119ft) | 145m (477ft) |
| 50 mm² | 51m (170ft) | 207m (681ft) |
| AWG 8 | *2 | *2 |
| AWG 6 | *2 | 55m (181ft) |
| AWG 4 | 21m (71ft) *1 | 87m (286ft) |
| AWG 2 | 35m (115ft) | 141m (463ft) |
| AWG 0 | 56m (184ft) | 224m (736ft) |
Total length battery → windlass → battery, copper with 90°C insulation, based on Maxwell 2300W motors with 135amp (24v) and 80amp (48v) breakers. *1: go one size up through an engine compartment (ABYC ampacity). *2: does not meet ABYC minimum ampacity for the breaker rating.
Under Power
- Tighten the clutch with the handle only enough to pull the anchor up easily, then remove the handle. Over-tightening can damage the motor when docking the anchor.
- Toggle down (or "Down" footswitch) to pay out; watch for jams; tie off to a chainstopper, snubber or cleat.
- Toggle up to retrieve while motoring up to the anchor; bring in the last meter (3') slowly with some clutch slip. Never secure the anchor in the roller with the windlass.
- Free fall: loosen the clutch anticlockwise standing clear; tighten clockwise to control descent.
Manual & Capstan
- Manual retrieval: tie off the rode, release the clutch, remove cap, washer, screw and clutch nut (and capstan and key), fit the emergency handle and tighten it with the clutch handle, pawl engaged with the upper chainwheel; lever the line in.
- Capstan: secure the anchor, turn the clutch nut anticlockwise until it stops so the chainwheel stays put, up to three turns clockwise on the drum, tail and use the UP footswitch.
Maintenance
| Interval | Work |
|---|---|
| Every trip | Check clutch adjustment; wash topworks and rope; flush the gearbox drainage slot with fresh water. |
| Every 3 months | Remove chainwheel, strip and grease the clutch; split gearbox from spacer tube, clean and re-grease the faces; clean with kerosene, spray CRC3097 Long Life (or CRC6-66 / WD40) above and below deck; check fasteners. |
| Every year | Motor serviced by a qualified technician; remove rust and repaint the casing. |
| Every 3 years | Inspect gearbox seals – lubricated for life, no oil change required. |
- Grease: lithium complex base NLG1 consistency No. 2. Gearbox oil ISO 3448 VG 320, approximately 560mls; synthetic only, never mix oils or greases.
- Anti-corrosion: CRC 3013 Soft Seal, Boeshield T9, Lanocote, International Paints Res-Q-Steel. Don't wrap the motor in grease cloth (cooling).
- Pressure arm: 5mm hex key on the chaincover capscrew (spring may jump out), grease the spring, seat the lower spring pin in the arm groove and align with the capscrew hole.
- Tools: hex keys 5, 6 and 8mm; 13mm and 17mm spanners; 10mm flat screwdriver; external circlip pliers.
Troubleshooting
| Problem | Possible cause / solution |
|---|---|
| Windlass does not rotate | Controls isolator ON, fuse, wiring, each control in turn, VFD isolator and fuse (if fitted), main supply. AC: thermistor resistance should be between 50 and 500 ohms (measure without voltage). |
| Cannot pull the specified load | Motor voltage not matching the supply (check name plate); hydraulic relief valve setting. |
| High current, struggles to pull | Motor mounting bolts touching the winding – spring washers, adjust bolt length. |
| Stops after prolonged heavy use | Motor at maximum temperature – let it cool, reset the breaker. |
| Runs, chainwheel stationary | Clutch not fully engaged; topworks key(s) missing. |
| Anchor does not free fall | Cones not greased, clutch not fully released, disc springs missing, pawl engaged. |
| Chain jumps / slips | Wrong chainwheel, twisted chain, or vertical angle of incoming chain more than 2 degrees. |
Spare Parts (Appendix B)
Recommended spares on board
| Part No. | Description | |
|---|---|---|
| P104750 | Retaining cap & O-ring | View part → |
| 2311 | Retaining clip (2) | View part → |
| 7465 | Key (2) | Ask us to source it → |
| 3150 | Drum key (capstan version only) | Ask us to source it → |
| 4635 | Gearbox key | Ask us to source it → |
| SP2799 | Deck seal | Ask us to source it → |
| SP0879 | Mainshaft circlip | View part → |
| Part No. | Description | Item | |
|---|---|---|---|
| 7191 | Cap | 1 | Ask us to source it → |
| SP2790 | O-ring | 2 | View part → |
| SP0095 | Screw CSK M8 × 24 | 3 | Ask us to source it → |
| 3267 | Retaining washer | 4 | View part → |
| 7440 | Clutch nut | 5 | Ask us to source it → |
| 7441 | Clutch nut capstan | 5 | Ask us to source it → |
| 7527 | Washer – capstan only | 6 | View part → |
| 7443 | Capstan | 7 | Ask us to source it → |
| 7439 | Clutch cone | 8 | View part → |
| 5015 | Bellville washer | 9 | View part → |
| SP0178 | Cap screw M5 × 16 | 10 | Ask us to source it → |
| SP5167 | Magnet | 11 | Ask us to source it → |
| 7444 | Stripper | 13 | Ask us to source it → |
| 7544 | Bush | 14 | Ask us to source it → |
| SP4509 | Cap screw M6 × 70 | 15 | Ask us to source it → |
| SP0474 | Spring washer | 16 | Ask us to source it → |
| 2311 | Retaining clip | 17 | View part → |
| SP2799 | Seal | 18 | Ask us to source it → |
| SP0657 | Bearing | 19 | Ask us to source it → |
| 7037 | Spring CW | 20 | Ask us to source it → |
| 7436 | Spring ACW | 20 | Ask us to source it → |
| 7435 | Pressure arm | 21 | View part → |
| SP3519 | Plug | 22 | Ask us to source it → |
| SP3518 | Bush | 23 | Ask us to source it → |
| SP3221 | Screw M10 × 35 | 24 | View part → |
| SP0466 | Spring washer | 25 | Ask us to source it → |
| 7458 | Spring | 26 | Ask us to source it → |
| 7456 | Pawl | 27 | Ask us to source it → |
| SP0413 | Washer | 28 | Ask us to source it → |
| SP0158 | Cap screw M8 × 25 | 29 | Ask us to source it → |
| 3150 | Key – capstan | 30 | Ask us to source it → |
| 7465 | Key | 31 | Ask us to source it → |
| 7457 | Pawl | 32 | Ask us to source it → |
| 7480 | Bush | 33 | Ask us to source it → |
| SP2785 | O-ring | 34 | Ask us to source it → |
| SP0170 | Cap screw M6 × 16 | 35 | Ask us to source it → |
| 5225 | Stud – 90TDC (4) | 36 | Ask us to source it → |
| 7652 | Stud – 90TDC (1) | 36 | Ask us to source it → |
| 7482 | Stud – 190TDC (4) | 36 | View part → |
| 4710 | Stud – 190TDC (1) | 36 | Ask us to source it → |
| SP0473 | Washer flat | 37 | Ask us to source it → |
| SP0466 | Washer spring | 38 | Ask us to source it → |
| SP0371 | Nut – M10 | 39 | Ask us to source it → |
| 7430 | Deckplate CW | 40 | Ask us to source it → |
| 7431 | Deckplate ACW | 40 | Ask us to source it → |
| 7515 | Gasket | 41 | Ask us to source it → |
| P103865 | Bi-square handle 10" | 42 | View part → |
| P103319 | Emergency handle – LP CW | 43 | View part → |
| P103323 | Emergency handle – LP ACW | 43 | Ask us to source it → |
| P103320 | Emergency handle – capstan CW | 44 | View part → |
| P103324 | Emergency handle – capstan ACW | 44 | Ask us to source it → |
Chainwheel assemblies (item 12)
| Part No. | Description | |
|---|---|---|
| P103317 | 10mm – 3/8" chainwheel CW (upper 7448 / lower 7447) | Ask us to source it → |
| P103325 | 11mm – 3/8" chainwheel CW (upper 7757 / lower 7756) | View part → |
| P103318 | 12mm/13mm – 1/2" chainwheel CW (upper 7452 / lower 7451) | View part → |
| P103328 | 13mm DIN 766 chainwheel CW (upper 8664 / lower 8663) | Ask us to source it → |
| P103321 | 10mm – 3/8" chainwheel ACW (upper 7447 / lower 7448) | Ask us to source it → |
| P103326 | 11mm – 3/8" chainwheel ACW (upper 7756 / lower 7757) | View part → |
| P103322 | 12mm/13mm – 1/2" chainwheel ACW (upper 7451 / lower 7452) | Ask us to source it → |
| P103329 | 13mm DIN 766 chainwheel ACW (upper 8663 / lower 8664) | Ask us to source it → |
| Part No. | Description | Item | |
|---|---|---|---|
| 7951 | Shaft RC12HD – LP – 100TDC | 50 | Ask us to source it → |
| 7952 | Shaft RC12HD – capstan – 100TDC | 50 | View part → |
| 7953 | Shaft RC12HD – LP – 200TDC | 50 | Ask us to source it → |
| 7954 | Shaft RC12HD – capstan – 200TDC | 50 | Ask us to source it → |
| 5497 | Spacer tube RC12HD 100TDC | 51 | Ask us to source it → |
| 7955 | Spacer tube RC12HD 200TDC | 51 | Ask us to source it → |
| SP0171 | Screw soc hd cap M8 × 30 | 52 | View part → |
| SP0428 | Washer flat M8 | 53 | Ask us to source it → |
| SP5029 | Gearbox W75U P80 100:1 B14 | 54 | Ask us to source it → |
| SP5026 | Flange input Bonfiglioli DC motor / hyd motor type 2 | 55 | Ask us to source it → |
| SP5067 | Flange input Bonfiglioli AC motor | 55 | Ask us to source it → |
| 8426 | Flange input Bonfiglioli hyd motor type 1 | 55 | Ask us to source it → |
| SP0172 | Cap screw M6 × 20 | 56 | Ask us to source it → |
| 7942 | Motor adaptor – DC electric | 57 | Ask us to source it → |
| 7957 | Motor adaptor – hydraulic type 2 | 57 | Ask us to source it → |
| 8911 | Bush | 58 | Ask us to source it → |
| SP5027 | Motor – DC electric 24V | 59 | View part → |
| SP5160 | Motor – DC electric 48V | 59 | Ask us to source it → |
| SP5068 | Motor – AC electric 2.2kW 3ph 50Hz | 59 | Ask us to source it → |
| SP5719 | Motor – AC electric 2.2kW 3ph 60Hz | 59 | Ask us to source it → |
| SP2273 | Motor – hydraulic type 1 gearmotor (120bar) | 59 | Ask us to source it → |
| SP2274 | Motor – hydraulic type 1 gearmotor (205bar) | 59 | Ask us to source it → |
| SP2271 | Motor – hydraulic type 1 gearmotor (85bar) | 59 | Ask us to source it → |
| SP0996 | Motor – hydraulic type 2 gerotor | 59 | Ask us to source it → |
| 4577 | Key – DC electric | 60 | Ask us to source it → |
| 7974 | Key – hydraulic type 2 | 60 | Ask us to source it → |
| SP0175 | Cap screw M6 × 25 | 61 | Ask us to source it → |
| SP5044 | Input bush splined W75 – DC motor | 62 | Ask us to source it → |
| SP5069 | Input bush splined W75 – AC motor | 62 | Ask us to source it → |
| 8619 | Input bush splined W75 – hyd motor | 62 | Ask us to source it → |
| 8620 | Input bush splined W75 – hyd motor type 2 | 62 | Ask us to source it → |
| SP0879 | Circlip | 63 | View part → |
| 4635 | Key 8 × 7 × 124 | 64 | Ask us to source it → |
| 7361 | Label serial number | 65 | Ask us to source it → |
| SP0523 | Screw hammer | 66 | Ask us to source it → |
| SP2459 | Cap screw M6 × 30 | 67 | Ask us to source it → |
| SP3519 | Plug plastic | 68 | Ask us to source it → |
| SP0254 | Hex hd bolt M8 × 20 – hydraulic type 2 | 69 | Ask us to source it → |
| SP0171 | Cap screw M8 × 30 – hydraulic type 1 | 69 | View part → |
| SP0280 | Hex hd bolt M10 × 40 – AC electric | 69 | Ask us to source it → |
| SP5402 | Flat washer – hydraulic type 2 only | 70 | Ask us to source it → |
| SP0434 | Flat washer – AC electric | 70 | Ask us to source it → |
| SP0467 | Washer spring M8 | 71 | Ask us to source it → |
| SP0466 | Washer spring M10 – AC electric | 71 | Ask us to source it → |
| SP0371 | Nut hex – AC electric | 72 | Ask us to source it → |
Some listed parts are only sold as part of a kit. CW = clockwise, ACW = anticlockwise. The deck cutout details in the PDF are marked not to scale.
Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.
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