Master Throttle Cable 3/6 mm, Small – code: 3714527 – Motomarine

The Master 3/6 mm sheet jammer, Small (code 3714527) of Motomarine is a component designed for the management of sheets in sailing, where control, order on deck, and quick adjustments are needed. The construction in black anodized aluminum is suitable for marine use, while the internal mechanics are designed to promote smooth sliding and reliable locking during maneuvers.

Features and construction details

Body in black anodized aluminum

The body of the jammer is made of black anodized aluminum, a finish chosen for its resistance to corrosion and UV rays. In a nautical context, where salt spray and irradiation are constant, this helps maintain a neat appearance and good surface protection over time.

Cams with constant tension spring

The locking system uses cams with a constant tension spring, designed to guide the sheet during insertion and maintain a stable grip when the line is jammed. This setup is useful in frequent adjustments, where sliding and locking phases alternate quickly.

Sliding on Delrin balls

The cams work on high-slip Delrin balls, a detail that promotes smooth movement and reduces friction in maneuvers. Essentially, it helps make sheet adjustment easier and maintains smooth mechanical action.

Dimensions and installation data (from product sheet)

• Sheet range: 3/6 mm
• H: 22 mm
• Screw spacing: 27 mm (M4)
• Working load: 100 Kg

Note on breaking load and working load

Manufacturer's note: the breaking load is twice the working load. For a correct component choice, it is good practice to always consider the working load as the operational reference and evaluate the installation based on the specific application.

Typical applications

A rope jammer is normally used for lock and release a sheet in a controlled manner during adjustments. In the nautical field, it can be used in different positions, depending on the boat's trim and the arrangement of the lines.

• Sheet adjustment on running rigging on deck or in the cockpit.
• Line organization near winches, fairleads, and control points.
• Replacement of a worn sheet jammer, checking screw spacing and sheet range.
• Outfitting and refit where a dedicated locking point is needed for a sheet within the indicated range.

Operational advantages

This sheet jammer offers some typical advantages of the category, useful in the daily management of lines:

• Neater sheet management thanks to a dedicated locking point.
• Verifiable installation through declared dimensions (H and screw spacing), useful for replacements and retrofits.
• Dimensional compatibility with sheets in the indicated range, for a more targeted choice.
• Clear reference through Motomarine code 3714527, useful for reordering and spare parts management.

The data of working load reported in the sheet (Kg 100) is a useful reference for comparisons between similar products; it remains important to size the system as a whole (sheets, blocks, fastenings, and supports) based on the actual setup.

Use and installation notes

Choice of line

This model is suitable for sheets in the range 3/6 mm. To achieve proper operation, it is advisable to use lines in good condition and with consistent diameter, avoiding excessively worn or deformed sheets that could affect the cam grip.

Assembly

For installation, refer to the available fastening data:

• Screw spacing: 27 mm
• Screws: M4

Before assembly, check the available space, sheet alignment, and the most comfortable position for the operator. Proper alignment of the line relative to the sheet jammer helps achieve a more natural and orderly use.

Routine maintenance

In a marine environment, it is good practice to perform periodic checks: cleaning from salt and dirt, verifying the correct movement of the cams, and checking the screws. Simple and regular maintenance helps maintain consistent functionality over time.

Product identification

For requests, reorders, or comparisons with existing components, use the reference Motomarine code 3714527 and the designation Master sheet jammer 3/6 mm, Small.

FAQ – Frequently Asked Questions

For which sheet diameters is this rope jammer suitable?

This Master Small model is suitable for sheets in the range 3/6 mm.

What are the fixing data for installation?

The screw spacing is 27 mm and the recommended screws are M4. It is advisable to check the available space and sheet alignment before mounting.

What material is the body of the sheet jammer made of?

The body is made of black anodized aluminum, suitable for marine environments and resistant to corrosion and UV rays.

What type of locking mechanism does it use?

It uses cams with a constant tension spring, sliding on high-slip Delrin balls.

What is the declared working load and what does the note on breaking load mean?

The declared working load is 100 Kg. The note indicates that the breaking load is twice the working load; for operational use, the working load is considered the reference.