Lewmar 34-77 manual Winch in 3 different ways

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3.5EVC Electric Variable Control. Standard controller single speed winches 34-48, 12 V & 24 V

The EVC winch controller is a variable speed motor controller which can drive the winch in 3 different ways:

1.SW 1 drives the winch at full speed.

2.SW 2 drives the winch at a set speed determined by adjustable dial marked (SP) on the control box. On supply the dial is preset by Lewmar to drive the winch at 60% of full speed.

3.If optional Vario Control is fitted then the winch will drive at a speed determined by adjustment of the Vario Control when deck switch (SW 2) is engaged.

The EVC controller uses current sensing to halt the operation of the winch when the winch has reached its Maximum Safe Working Load.

The EVC controller features a Ramp/ Soft Start to control the winch start up, adjustment of dial RA will vary the start period between 0.5 - 5 seconds. The dial is preset by Lewmar for a start period of 1 second.

In order to adjust the speed (SP) and Ramp (RA) dials, unscrew the plug screws, on top of the controller 4 full turns and retract the plug/ screw assembly. Use an electrical slotted (2.5mm Max.) screwdriver to adjust the internal dial to the desired setting.

Fig. 3.5.1

Two-way

SW 1

SW 2

Also see Section 3.7.

Terminal Block

Electric Switch Kit

Electric Switch Kit

 

 

69000018

69000018

2

 

 

Grey

Grey

1 2

Black

Not Used

Not Used

Blue

Black

 

3

 

 

4 5 6 7 8

 

 

 

 

3 Amp

 

 

 

Fuse

 

 

 

 

(Optional)

 

 

1

Vario Control

 

Battery –VE

 

 

 

 

 

 

 

Battery

Thermal

 

 

Cutout

 

EVC

 

 

Control Box

Isolator/Safety

D1

 

 

 

 

Switch

A2

BAT–

MOT+

BAT+

 

MOT–

 

 

 

Circuit

D2

3

 

Breaker

 

 

 

4

 

 

Battery +VE

 

 

 

 

 

Motor – VE

 

 

 

Motor +VE

 

Fig. 3.6.1

Two-way

SW 1

SW 2

Also see Section 3.7.

Terminal Block

Electric Switch Kit

Electric Switch Kit

 

69000018

69000018

2

 

 

Grey

Grey

1 2

Black

Not Used

Not Used

Blue

Black

 

3

 

 

4 5 6 7 8

 

 

 

3Amp Fuse

 

(Optional)

1

Vario Control

 

3.6EVC Electric Variable Control. Standard & high power controller single speed winches 50-65, 12 V & 24 V

• The EVC winch controller is a variable

speed motor controller which can drive

Battery –VE

Battery

 

EVC

Control Box

 

Isolator/Safety

 

Switch

BAT–

MOT+ BAT+

MOT–

 

Circuit

3

Breaker

 

 

Battery +VE

F2

Thermal

 

Cutout

F1

A1

A2

4

the winch in 3 different ways:

NOTE: Standard EVC used

on 50−65 24 V. High power

Motor +VE

Motor – VE

 

EVC used on 50−65 12 V.

1.

SW 1 drives the winch at full speed.

2.

SW 2 drives the winch at a set speed

 

determined by adjustable dial marked

 

(SP) on the control box. On supply the

 

dial is preset by Lewmar to drive the

 

winch at 60% of full speed.

3.

If optional Vario Control is fitted

 

then the winch will drive at a speed

The EVC controller features a Ramp/ Soft Start to control the winch start up, adjustment of dial RA will vary the start period between 0.5 - 5 seconds. The dial is preset by Lewmar for a start period of 1 second.

In order to adjust the speed (SP) and Ramp (RA) dials, unscrew the plug screws, on top of the controller 4 full turns and retract the plug/ screw assembly. Use an electrical slotted (2.5mm Max.) screwdriver to adjust the internal dial to the desired setting.

determined by adjustment of the Vario

Control when deck switch (SW 2) is

engaged.

The EVC controller uses current sensing to halt the operation of the winch when the winch has reached its Maximum Safe Working Load.

NUMBER KEY FOR ALL ELECTRICAL DIAGRAMS

nNegative earth MUST be used.

oThe deck switch wires MUST be fitted as shown on wiring diagrams.

pConnect all low power wiring (deck switches, motor cutout etc.) before fitting high power cables to controller.

q Cable boots are supplied for all high power cable connections, follow guidelines Fig. 2.1.1 for cable sizing.

12Ocean Electric Winches 34 - 77

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Contents Page Contents Introduction Safety noticesFitting a complete electric winch from new InstallationIdentifying the manual convertible winch Preparing the manual winch for conversion to electricFitting a convertible electric winch Positioning winch ancillaries below deck44~64 Fastening FasteningsWinch/motor gearbox coupling WinchMain spindle rotation Electrical wiring installationBattery size Typical electrical layoutTotal voltage drop Must not exceed Electrical connectionsSeries Electric 34-48, 12 V or ELS Electric Load Sensing 34-48, 12 V or 24For cable sizing Connect the power supply cablesELS Electric Load Sensing 50-65, 12 V or 24 Winch in 3 different ways Red +VE Performance diagramsNEW Electric deck switch Maximum winch load values Safe working loadsOperating your winch Optimum rope diametersGrease Oil Servicing your winchQty 64/65 Parts listWinch model notes Qty Push Rod Assembly66/68-*2 77-*2 18000181Model Dimensions72.5 34/40 Total weightModel range Model range66/68 Circuit breakersModel 64/65 SpeedFault finding KEY Terms of Supply by Lewmar Lewmar limited warrantyB2303

34-77 specifications

The Lewmar 34-77 is a sophisticated and reliable winch designed for sailing enthusiasts seeking both performance and ease of use. This versatile winch is part of Lewmar's extensive range, known for its innovative engineering and high-quality materials. The 34-77 model combines strength, durability, and advanced features, catering to a variety of sailing conditions and user preferences.

One of the standout features of the Lewmar 34-77 is its self-tailing mechanism. This technology allows sailors to operate the winch without manual assistance in securing the line, providing ease of handling, especially when managing larger sails or when single-handed sailing. The self-tailing design features a robust, integrated clutch that securely holds the line while the winch is engaged, ensuring optimal performance without slipping.

The winch is constructed from high-grade materials, with a focus on maximizing corrosion resistance and longevity. The aluminum construction not only makes the winch lightweight but also provides exceptional strength, allowing it to handle heavy loads with ease. The hard-anodized surface treatment enhances protection against wear and abrasion, ensuring the winch can withstand the harsh marine environment.

Another characteristic that distinguishes the Lewmar 34-77 is its innovative gearing system. The winch features a 2-speed operation, allowing sailors to choose between higher speed for quick trimming and more power for heavy loads. This versatility enables a more tailored approach to sailing maneuvers, enhancing the overall sailing experience.

The design of the Lewmar 34-77 is also user-centric, incorporating a smooth and ergonomic drum. This feature minimizes friction, enabling easier line handling and increased efficiency. The winch’s low-profile design ensures that it doesn't obstruct movement on the deck, making it an ideal choice for both racing and cruising vessels.

In summary, the Lewmar 34-77 is a high-performance winch that embodies the essence of modern sailing technology. Its self-tailing mechanism, durable materials, efficient gearing, and user-friendly design make it a preferred choice among sailors who demand reliability and efficiency in their equipment. Whether you're racing competitively or enjoying a leisurely cruise, the Lewmar 34-77 ensures you have the tools necessary for a successful and enjoyable sailing experience.