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Deck hatches & spare partsSpare Parts & MaintenanceSpare Parts – Square and Rectangular HatchesModel 1824 (18" x 24")

Spare Parts for Freeman Marine Model 1824 Rectangular Deck Hatches (18" x 24" / 457 x 610 mm)

Welcome to Bövik Marin AB – authorized European supplier of genuine factory replacement parts for Freeman Marine Model 1824 rectangular cast deck hatches. Offering an 18 x 24 inch (457 x 610 mm) clear opening, Model 1824 is the premier utility access closure specified for machinery spaces, pump rooms, equipment rigging, and service trunks across fishing vessels, patrol craft, Coast Guard cutters, and commercial workboats.

Model 1824 (Series 2421 lift-out / Model 1824K and Series 2461 hinged / Model 1824-HK) is engineered with Freeman's heavy-weather knife-edge sealing system. The machined perimeter knife-edge rim and integrated coaming drainage gutter effectively capture and route green-water runoff away from below-deck compartments. Mechanically, a central 4-hole cam hub synchronizes four heavy-duty 11.625-inch dog arms to deliver balanced, powerful perimeter clamping force in under a quarter-turn via the flush deck handle or inside emergency escape handle.

Below you will find all genuine mechanical and elastomeric components required for scheduled maintenance, survey overhauls, and complete mechanism rebuilds for Model 1824:

Model 1824 Component Directory (Featured Items Below):

1. Sealing System & Gaskets • Knife-Edge Gasket aluminum ring (Part no. 9813-2009)
• Knife-Edge Gasket steel ring (Part no. 9835-2012)
Hollow D-profile neoprene elastomer (457x610 mm).
2. Dogging Mechanism & Arms • Aluminum Dog Arm 11.625" (Part no. 0211-2007)
• 4-Hole Cam Hub (Part no. 0011-2002)
• Optional: 316 S/S stainless dog arms
3. Actuation & Drive Shaft • Flush Deck Handle 316 S/S
• Handle Spindle & Roll Pins (15"+ standard)
• Inside Escape Handle Assemblies
4. Center Bushing & Hardware • Universal Bushing Overhaul Kit (Part no. 0031-2204)
• Cam Buttons / Wear Pads (Part no. 0621-2004)
• Nylon Thrust Washers (Part no. 0413-2005)

Technical Guide: Maintenance and Component Specification for Model 1824 Rectangular

The rectangular geometry of Freeman Model 1824 (Series 2421 & 2461) provides maximum usable access width for machinery maintenance and equipment transfer. Rectangular closures are subjected to significant deck torsional stresses during heavy sea states, making Freeman's knife-edge sealing technology essential for maintaining fail-safe watertight integrity.

1. Knife-Edge Gasket Specification: Aluminum vs. Steel Coaming

The coaming on Model 1824 features a machined knife-edge rim flanked by a deep perimeter drainage gutter. The replacement gasket is a hollow D-profile marine neoprene elastomer designed to seat securely into the cover channel:

  • Aluminum Coamings (Part no. 9813-2009): Precision-molded gasket tailored for Freeman 1824 aluminum coamings. Compatible with both lift-out covers (1824K) and hinged variants (1824-HK).
  • Steel Coamings (Part no. 9835-2012): Specifically profiled with adjusted base width for Freeman steel weld-in rings. Engineered to endure continuous deck vibration and heavy green-water sea states.

2. 4-Arm Kinematics with 11.625" Dog Arms

Model 1824 operates via Freeman's central 4-hole marine aluminum cam hub (Part no. 0011-2002) and four 11.625-inch aluminum dog arms (295 mm, Part no. 0211-2007). Because the hatch is rectangular, these extended arms reach out to both longitudinal and lateral edges to provide balanced, symmetrical perimeter clamping force. During scheduled maintenance, inspect dog arms for straightness and renew nylon cam buttons (Part no. 0621-2004) to ensure smooth travel across the hub tracks.

3. Center Bushing & Spindle Sealing

Moisture weeping beneath the flush deck handle indicates worn spindle O-rings. Model 1824 utilizes Freeman's heavy-duty Universal Center Bushing Overhaul Kit (Part no. 0031-2204), containing a marine-grade sleeve bushing, dual O-rings, and stainless roll pin. Always coat O-rings with waterproof marine grease during reassembly.

Need a Complete New Hatch Assembly or Replacement Deck Coaming?

If your coaming has suffered structural damage or you are engineering a new machinery access opening, explore complete hatch assemblies and genuine factory coamings:

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