Marpac 7-1545 - User Manual

For Windlass Models
7-1550 & 7-1546
Boats to 20 Feet
Owner’s Installation &
Operation Manual
If unfamiliar with this product and
installation seek a professional installer.
Please read this user manual carefully before using the product

Summary

Section I Features

Features

Key features of the windlass, including rope/chain compatibility, motor type, and housing design.

Section II Package Contents

Package Contents

Lists all items included in the windlass package, detailing parts and quantities for installation.

Section III Specifications

Specifications

Technical details for windlass models 7-1545/7-1546, including boat size, voltage, load, and dimensions.

Section IV Installation

Installation Guide

Step-by-step instructions, required tools, and mounting guidance for the anchor windlass.

Section V Operating

Operating Instructions

Procedures for operating the windlass, including anchor deployment, retrieval, and free fall mode.

Section VI Maintenance

Maintenance Recommendations

Guidance on maintaining the windlass, including cleaning, lubrication, and checking components.

Section VII Warranty

Warranty Information

Details on the product warranty, claims process, limitations, and exclusions.

Section VIII Accessories

Available Accessories

Information on optional accessory kits for the windlass, such as foot controls and remote boxes.

Section IX Spare Parts

Spare Parts Listing

Identifies available replacement parts for the windlass models, including switches and arms.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features
5. Accessories and Spare Parts
6. Installation Considerations

The Marpac Anchor Windlass, models 7-1550 and 7-1546, are designed for boats up to 20 feet, offering a reliable solution for anchor deployment and retrieval. These windlasses feature a compact, one-piece aluminum alloy housing with a powder-coated finish, ensuring water resistance and durability. The design emphasizes simple deck mounting with no parts extending below the deck, making installation straightforward. A heavy-duty DC motor provides long life and high output torque, capable of handling both chain and rope.

Function Description:

The primary function of the Marpac Anchor Windlass is to assist in the deployment and retrieval of anchors. The gypsy, a specialized drum, is designed to accommodate both chain and rope, specifically 1/4" (7mm) G4 HT chain and 1/2" (12mm) 3-strand medium lay rope. The windlass operates via a control device, typically an Up/Down switch (model 7-1558) or a Remote Control Box (model 7-1556) for more complex setups involving foot switches or multiple control stations.

For model 7-1546, a selectable free fall or power out mode is available. In free fall mode, the anchor is released to the seabed quickly, with the clutch disengaged. To engage the clutch and retrieve the anchor, the switch is rotated to the "UP" position. The free fall function should only be used with rope and not with all-chain rodes to prevent damage.

The windlass is designed to lift the anchor, not to drag the boat or for mooring. When retrieving the anchor, the boat should be moved directly above the anchor using its engine power, and then the windlass should be engaged to lift the anchor. For mooring, the anchor rope should be firmly tied to a bollard, transferring the boat's drag force away from the windlass. If using all chain, a chain stopper is essential for this purpose.

Important Technical Specifications:

Both models operate on DC 12V input voltage. They share a maximum working load of 265lb (120kg) and a typical working load of 45lb (20kg). The retrieval speed for both is 57ft (17m)/min.

Key differences lie in the pay-out speed and weight:

• Model 7-1550 (referred to as 7-1545 in the specifications table): Offers a pay-out speed of 73ft (22m)/min and weighs 8.8lb (4.0kg).
• Model 7-1546: Features either free fall or a power out speed of 57ft (17m)/min, matching its retrieval speed. It weighs 10.6lb (4.8kg).

Both models have a continuous working time of 15 minutes and a typical current draw of 12 amp. They are equipped with permanent magnet motors, rated at 600W input and 250W output, with a motor efficiency of 74%. The gear type is worm, with an efficiency ranging from 50% to 88%.

Dimensions for both models are 9" x 4.75" x 5.3" (230x120x135mm).

Usage Features:

• Rope and Chain Compatibility: The windlass is designed to work with a specific type of rope and chain. It requires three-strand, medium-lay Filament Polyester or Premium Nylon rope. Soft rope (polyester or nylon) should be avoided as it can slip and cause jams. For chain, the distance between every other link ("d") must be suitable for the gypsy, specifically 37-44 mm for 6.7 mm / 1/2" gypsy.
• Control Options: The windlass can be controlled using a simple Up/Down switch (7-1558) for basic operation. For more advanced control, such as with foot switches (7-1555) or multiple control stations (7-1559), a Remote Control Box (7-1556) is necessary.
• Safety Features: A circuit breaker (30A(12V)) is included to protect the motor from overload. If the breaker button pops, it indicates an overload and needs to be reset. It is crucial to connect the power cable to the main power switch, not directly to the battery, for safety.
• Running-In Gears: During the initial period of use (approximately 10 operations), it is normal to experience some noise, a perceived lack of power, or frequent circuit breaker trips. This is due to the worm gears running-in. After this period, the gears will smooth out, leading to improved power and reduced noise.
• Operational Guidelines:
  • Always ensure the control switch is in the "OFF" position when not in use.
  • When anchoring, pay out approximately 2-3 times the water's depth for a firm set.
  • Secure the anchor rope to a bollard once the anchor is cast and the boat is moored to prevent damage to the windlass from the boat's drag.
  • Avoid using the free fall function with all-chain rodes.
  • Keep limbs, fingers, clothing, and hair clear of the windlass and anchor during operation to prevent personal injury.
  • Do not use the windlass for continuous operation for more than 20 minutes at a time under load. Allow a 20-30 minute interval after each operation.
  • After use, secure the anchor firmly in place to prevent damage during transport.

Maintenance Features:

• Lubrication: The windlasses come with a grease-lubricated gearbox, requiring no additional lubrication.
• Cleaning: To optimize performance and extend life, wash off salt water with fresh water after each use.
• Periodic Checks: Periodically inspect the electric joiner and the silicon sealant for any signs of wear or damage.

Accessories and Spare Parts:

Marpac offers various accessory kits to enhance the windlass's functionality:

• 7-1485 Foot Controls Kit: Includes two 7-1555 Foot Switches and one 7-1556 Remote Control Box.
• 7-1486 Add-a-Station Kit: Includes two 7-1559 Up/Down Switches and one 7-1556 Remote Control Box.
• 7-1487 Combination Kit: Includes two 7-1555 Foot Switches, two 7-1559 Up/Down Switches, and one 7-1556 Remote Control Box.

Spare parts are also available separately, including:

• 7-1558 Up/Down Switch (replacement for windlass switches only)
• 7-9086 Release Arm (for 7-1550, 7-1553, 7-1554 models only)
• 7-9088 Tension Arm (fits all Marpac horizontal windlasses)
• 7-9091 Tension Spring (fits all Marpac horizontal windlasses)

Installation Considerations:

Proper installation is crucial for correct operation. A suitable bow roller must be installed to support the anchor, chain, and rope. A cleat, bollard, or snubbing device should be installed between the bow roller and the windlass to secure the rope or anchor. If using only chain, a chain stopper is necessary to take the drag force away from the windlass. The anchor well or chain locker must be deep enough (minimum 1 1/3 ft or 40cm for about 100ft or 30 meters of rope) to prevent rope buildup and blockage. An installation video CD is included to guide users through the process.

Marpac 7-1545 Specifications

General

Brand	Marpac
Model	7-1545
Category	Boating Equipment
Language	English