SKU: 779-K | Main Frame ” Compatible with Lug-All Model 4000-40 (2-Ton Cable Hoist) The Structural Foundation of Your Longest-Reach Hoist ” OEM Main Frame for the 4000-40 Every internal component of your hoist ” the drum, pawl system, shaft, handle assembly, and cable guide ” is housed, aligned, and supported by one critical structural component: the main frame. The SKU 779-K Main Frame is a genuine OEM replacement part engineered exclusively for the Lug-All model 4000-40, an industrial-grade 2-ton cable come along ratchet winch hoist with 40 feet of cable at 2,000 lbs in single-line configuration, or 20 feet of cable at 4,000 lbs in double-line configuration. If your main frame is cracked, damaged, or structurally compromised in any way, the hoist must be taken out of service immediately ” and this OEM replacement is the correct, safe solution for restoring your 4000-40 to full operational status. Lug-All The model 4000-40 occupies a unique position in the Lug-All cable hoist lineup. It uses a large frame design to improve the functionality of the model 4000-20 ” the large frame allows the 4000-40 to keep the same 4,000-pound maximum capacity while accommodating a longer cable for a greater maximum pulling or lifting distance of 40 feet, compared to 20 feet with the 4000-20. This large frame design is not interchangeable with other Lug-All models ” it is a distinct structural platform that enables the 4000-40's extended cable capacity and its unique overload protection system. The SKU 779-K main frame is specific to this model, and only this OEM part correctly supports all of the 4000-40's internal components. Lug-All That overload protection system is itself a distinguishing feature of the 4000-40's large frame. Unlike the rest of the Lug-All cable hoist line, the 4000-40 does not use a bending handle for overload protection. Instead, it uses a specially designed handle attachment assembly that includes a shear pin, which is unique to the large frame and is designed to break audibly at over 125 percent of the hoist's maximum rated capacity. The main frame's structural geometry directly supports this shear pin assembly ” making the large frame not just a housing component, but an integral part of the hoist's safety architecture. Lug-All All Lug-All cable hoists are made in the USA using 7x19 aircraft cable and are designed with an aluminum alloy main frame with open construction for easy cleaning and maintenance. The SKU 779-K main frame is manufactured from the same high-strength aluminum alloy to the same dimensional tolerances as the original, ensuring all internal components ” drum, shafts, pawls, cable guide, and handle assembly ” align correctly upon installation. Lug-All With the maximum cable length of 40 feet, the Lug-All model 4000-40 provides the longest cable length of all Lug-All models ” a capability that depends entirely on a structurally sound main frame to support every component across that extended operating range. Lug-All

Product Specifications SpecificationDetailSKU779-KPart NameMain FrameCompatible ModelLug-All 4000-40Frame DesignLarge Frame (unique to 4000-40)Hoist TypeCable Come-Along / Ratchet Winch HoistSingle Line Capacity2,000 lbs / 40 FTDouble Line Capacity4,000 lbs / 20 FTCable Type7x19 Aircraft CableOverload Protection SystemShear Pin (large frame design ” unique to 4000-40)Frame MaterialHigh-Strength Aluminum AlloyConstructionOpen Frame ” Easy Cleaning and InspectionPart TypeOEM Replacement Structural ComponentCountry of ManufactureUSA

Main Frame Damage Means Out of Service ” Until the Right Part Is Installed The main frame is the one component that cannot be repaired, reinforced, or substituted ” only replaced with the correct OEM part. Any crack, fracture, bent bore, or deformed mounting point in the main frame compromises the alignment of every internal component and the structural integrity of the entire hoist under load. Regular maintenance and inspection of hoist parts are essential for ensuring safe and efficient operation, and addressing wear or malfunctions promptly contributes to the longevity and reliability of the hoist system. When your 4000-40 main frame is damaged, SKU 779-K is the only correct replacement ” built to the same large-frame specification that makes the 4000-40 Lug-All's longest-reach industrial cable hoist. BH-USA This main frame is compatible with the Lug-All model 4000-40 only. Please verify your hoist model number before ordering. The 4000-40 large frame is not interchangeable with other Lug-All cable hoist models.