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Heavy-Duty Fluid Head Tripod 3751B Clamping/Pin Repair Instructions
SmallRig Support Team 2025-12-28 19:37:24
Upper Clamp Assembly Maintenance
1. Access the pin screw at the clamping groove using a cross screwdriver to unscrew and remove the retaining screw.
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2. Locate the screws on the backplate of the clamp and use a hex key wrench to remove them.
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After removing both screws, carefully extract the entire clamping assembly. The components include:
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Pin ×1
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Clamping plate ×1
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Long screw ×1
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Spring ×1
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Rear fixing plate ×1
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Replace damaged parts as needed:
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Install the new clamping plate and align the pin’s threaded hole with the mounting holes on the backplate.
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Slip the spring and rear fixing plate onto the long screw in sequence.
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Use a hex key wrench to tighten the long screw into the frame.
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Finally, secure the pin by reinstalling its retaining screw. Repair complete.
Lower Clamp Assembly Maintenance
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Remove the lower clamping backplate screws using a hex key wrench (Note: The lower pin has no separate retaining screw).
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Unscrew the screws to sequentially disassemble the backplate assembly, pin, and clamp.
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Replace components:
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Align the pin’s threaded hole with the backplate’s mounting holes and attach it to the frame.
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Mount the rear fixing assembly onto the frame using a hex key wrench. Repair completed.
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